Use the device lifecycle managed get function. This helps prevent
mistakes like releasing out of order in cleanup functions and
forgetting to release on error paths.
Signed-off-by: Andrew Davis <afd@ti.com>
Link: https://lore.kernel.org/r/20240123163653.384385-17-afd@ti.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Use the device lifecycle managed register function. This helps prevent
mistakes like unregistering out of order in cleanup functions and
forgetting to unregister on error paths.
Signed-off-by: Andrew Davis <afd@ti.com>
Link: https://lore.kernel.org/r/20240123163653.384385-15-afd@ti.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Use the device lifecycle managed register function. This helps prevent
mistakes like unregistering out of order in cleanup functions and
forgetting to unregister on error paths.
Signed-off-by: Andrew Davis <afd@ti.com>
Link: https://lore.kernel.org/r/20240123163653.384385-14-afd@ti.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Use the device lifecycle managed register function. This helps prevent
mistakes like unregistering out of order in cleanup functions and
forgetting to unregister on error paths.
Signed-off-by: Andrew Davis <afd@ti.com>
Link: https://lore.kernel.org/r/20240123163653.384385-13-afd@ti.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Use the device lifecycle managed register function. This helps prevent
mistakes like unregistering out of order in cleanup functions and
forgetting to unregister on error paths.
Signed-off-by: Andrew Davis <afd@ti.com>
Link: https://lore.kernel.org/r/20240123163653.384385-12-afd@ti.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Use the device lifecycle managed register function. This helps prevent
mistakes like unregistering out of order in cleanup functions and
forgetting to unregister on error paths.
Signed-off-by: Andrew Davis <afd@ti.com>
Link: https://lore.kernel.org/r/20240123163653.384385-11-afd@ti.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Use the device lifecycle managed register function. This helps prevent
mistakes like unregistering out of order in cleanup functions and
forgetting to unregister on error paths.
Signed-off-by: Andrew Davis <afd@ti.com>
Link: https://lore.kernel.org/r/20240123163653.384385-7-afd@ti.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Use the device lifecycle managed register function. This helps prevent
mistakes like unregistering out of order in cleanup functions and
forgetting to unregister on error paths.
Signed-off-by: Andrew Davis <afd@ti.com>
Link: https://lore.kernel.org/r/20240123163653.384385-6-afd@ti.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Use the device lifecycle managed register function. This helps prevent
mistakes like unregistering out of order in cleanup functions and
forgetting to unregister on error paths.
Signed-off-by: Andrew Davis <afd@ti.com>
Link: https://lore.kernel.org/r/20240123163653.384385-5-afd@ti.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Use the device lifecycle managed register function. This helps prevent
mistakes like unregistering out of order in cleanup functions and
forgetting to unregister on error paths.
Signed-off-by: Andrew Davis <afd@ti.com>
Link: https://lore.kernel.org/r/20240123163653.384385-4-afd@ti.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Use the device lifecycle managed register function. This helps prevent
mistakes like unregistering out of order in cleanup functions and
forgetting to unregister on error paths.
Signed-off-by: Andrew Davis <afd@ti.com>
Link: https://lore.kernel.org/r/20240123163653.384385-3-afd@ti.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Use the device lifecycle managed register function. This helps prevent
mistakes like unregistering out of order in cleanup functions and
forgetting to unregister on error paths.
Signed-off-by: Andrew Davis <afd@ti.com>
Link: https://lore.kernel.org/r/20240123163653.384385-2-afd@ti.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This value only needs read once. Move that read into the function
that returns the value to keep the logic all in one place. This
also avoids doing this check every time we read in values in
the device update poll worker.
While here, correct this function's error message.
Signed-off-by: Andrew Davis <afd@ti.com>
Link: https://lore.kernel.org/r/20240123150914.308510-5-afd@ti.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Use the device lifecycle managed register function. This helps prevent
mistakes like unregistering out of order in cleanup functions and
forgetting to unregister on error paths.
Signed-off-by: Andrew Davis <afd@ti.com>
Link: https://lore.kernel.org/r/20240123150914.308510-4-afd@ti.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Use a device lifecycle managed action to free the device mutex.
This helps prevent mistakes like freeing out of order in cleanup
functions and forgetting to free on error paths.
Signed-off-by: Andrew Davis <afd@ti.com>
Link: https://lore.kernel.org/r/20240123150914.308510-3-afd@ti.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Use a device lifecycle managed action to free the IDA. This helps
prevent mistakes like freeing out of order in cleanup functions and
forgetting to free on error paths.
Signed-off-by: Andrew Davis <afd@ti.com>
Link: https://lore.kernel.org/r/20240123150914.308510-2-afd@ti.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
We don't need to specify any ranges when allocating IDs so we can switch
to ida_alloc() and ida_free() instead of the ida_simple_ counterparts.
Signed-off-by: Andrew Davis <afd@ti.com>
Link: https://lore.kernel.org/r/20240123150914.308510-1-afd@ti.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This reverts commit b43f7ddc2b.
The offending commit deferred power-supply class device registration
until the service-started notification is received.
This triggers a NULL pointer dereference during boot of the Lenovo
ThinkPad X13s and SC8280XP CRD as battery status notifications can be
received before the service-start notification:
Unable to handle kernel NULL pointer dereference at virtual address 00000000000005c0
...
Call trace:
_acquire+0x338/0x2064
acquire+0x1e8/0x318
spin_lock_irqsave+0x60/0x88
_supply_changed+0x2c/0xa4
battmgr_callback+0x1d4/0x60c [qcom_battmgr]
pmic_glink_rpmsg_callback+0x5c/0xa4 [pmic_glink]
qcom_glink_native_rx+0x58c/0x7e8
qcom_glink_smem_intr+0x14/0x24 [qcom_glink_smem]
__handle_irq_event_percpu+0xb0/0x2d4
handle_irq_event+0x4c/0xb8
As trying to serialise this is non-trivial and risks missing
notifications, let's revert to registration during probe so that the
driver data is all set up once the service goes live.
The warning message during resume in case the aDSP firmware is not
running that motivated the change can be considered a feature and should
not be suppressed.
Fixes: b43f7ddc2b ("power: supply: qcom_battmgr: Register the power supplies after PDR is up")
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20240123160053.18331-1-johan+linaro@kernel.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
When building with a version of GCC prior to 8.x, there is an error
around non-constant initializer elements:
drivers/power/supply/bq24190_charger.c:1978:16: error: initializer element is not constant
.vbus_desc = bq24190_vbus_desc,
^~~~~~~~~~~~~~~~~
drivers/power/supply/bq24190_charger.c:1978:16: note: (near initialization for 'bq24190_chip_info_tbl[0].vbus_desc')
drivers/power/supply/bq24190_charger.c:1989:16: error: initializer element is not constant
.vbus_desc = bq24190_vbus_desc,
^~~~~~~~~~~~~~~~~
drivers/power/supply/bq24190_charger.c:1989:16: note: (near initialization for 'bq24190_chip_info_tbl[1].vbus_desc')
drivers/power/supply/bq24190_charger.c:2000:16: error: initializer element is not constant
.vbus_desc = bq24190_vbus_desc,
^~~~~~~~~~~~~~~~~
drivers/power/supply/bq24190_charger.c:2000:16: note: (near initialization for 'bq24190_chip_info_tbl[2].vbus_desc')
drivers/power/supply/bq24190_charger.c:2011:16: error: initializer element is not constant
.vbus_desc = bq24190_vbus_desc,
^~~~~~~~~~~~~~~~~
drivers/power/supply/bq24190_charger.c:2011:16: note: (near initialization for 'bq24190_chip_info_tbl[3].vbus_desc')
drivers/power/supply/bq24190_charger.c:2022:16: error: initializer element is not constant
.vbus_desc = bq24296_vbus_desc,
^~~~~~~~~~~~~~~~~
drivers/power/supply/bq24190_charger.c:2022:16: note: (near initialization for 'bq24190_chip_info_tbl[4].vbus_desc')
Clang versions prior to 17.x show a similar error:
drivers/power/supply/bq24190_charger.c:1978:16: error: initializer element is not a compile-time constant
.vbus_desc = bq24190_vbus_desc,
^~~~~~~~~~~~~~~~~
1 error generated.
Newer compilers have decided to accept these structures as compile time
constants as an extension. To resolve this issue for all supported
compilers, change the vbus_desc member in 'struct bq24190_chip_info' to
a pointer, as it is only ever passed by reference anyways, and adjust
the assignments accordingly.
Closes: https://github.com/ClangBuiltLinux/linux/issues/1973
Fixes: b150a703b5 ("power: supply: bq24190_charger: Add support for BQ24296")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Justin Stitt <justinstitt@google.com>
Link: https://lore.kernel.org/r/20240103-fix-bq24190_charger-vbus_desc-non-const-v1-1-115ddf798c70@kernel.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The BQ24296 is most similar to the BQ24196, but the:
1. OTG config is split from CHG config (REG01)
2. ICHG (Fast Charge Current limit) range is smaller (<=3008mA)
3. NTC fault is simplified to 2 bits
Signed-off-by: Hermes Zhang <chenhuiz@axis.com>
Link: https://lore.kernel.org/r/20231208034708.1248389-3-Hermes.Zhang@axis.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Currently, a not-yet-entirely-initialized battmgr (e.g. with pd-mapper
not having yet started or ADSP not being up etc.) results in a couple of
zombie power supply devices hanging around.
This is particularly noticeable when trying to suspend the device (even
s2idle): the PSY-internal thermal zone is inaccessible and returns
-ENODEV, which causes log spam.
Register the power supplies only after we received some notification
indicating battmgr is ready to take off.
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Tested-by: Luca Weiss <luca.weiss@fairphone.com>
Link: https://lore.kernel.org/r/20231218-topic-battmgr_fixture_attempt-v1-1-6145745f34fe@linaro.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
devm_kasprintf and devm_kzalloc return a pointer to dynamically
allocated memory which can be NULL upon failure.
Fixes: 8648aeb5d7 ("power: supply: add Qualcomm PMI8998 SMB2 Charger driver")
Signed-off-by: Kunwu Chan <chentao@kylinos.cn>
Link: https://lore.kernel.org/r/20231124075021.1335289-1-chentao@kylinos.cn
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
When building with clang, there are two section mismatch warnings:
WARNING: modpost: vmlinux: section mismatch in reference: at91_poweroff_probe+0x7c (section: .text) -> at91_wakeup_status (section: .init.text)
WARNING: modpost: vmlinux: section mismatch in reference: at91_shdwc_probe+0xcc (section: .text) -> at91_wakeup_status (section: .init.text)
Drop '__init' from at91_wakeup_status() to clear up the mismatch.
Fixes: dde74a5de8 ("power: reset: at91-sama5d2_shdwc: Stop using module_platform_driver_probe()")
Fixes: 099806de68 ("power: reset: at91-poweroff: Stop using module_platform_driver_probe()")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This resolves checkpatch warning "quoted string split across lines" on:
1640: WARNING: quoted string split across lines
1641: WARNING: quoted string split across lines
The motive to use multiple MODULE_AUTHOR statements came from this
comment from "include/linux/module.h":
/*
* Author(s), use "Name <email>" or just "Name", for multiple
* authors use multiple MODULE_AUTHOR() statements/lines.
*/
#define MODULE_AUTHOR(_author) MODULE_INFO(author, _author)
Signed-off-by: Charalampos Mitrodimas <charmitro@posteo.net>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
These were mentioned by checkpatch:
Errors:
(1) code indent should use tabs where possible
(2) switch and case should be at the same indent
Warnings:
(1) Missing a blank line after declarations
Signed-off-by: Charalampos Mitrodimas <charmitro@posteo.net>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Use device life-cycle managed register function to simplify probe error
path and eliminate need for explicit remove function.
Signed-off-by: Andrew Davis <afd@ti.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
smatch complains that there is a buffer overflow and clang complains
'ret' is never read.
Smatch error:
drivers/power/supply/bq256xx_charger.c:1578 bq256xx_hw_init() error:
buffer overflow 'bq256xx_watchdog_time' 4 <= 4
Clang static checker:
Value stored to 'ret' is never read.
Add check for buffer overflow and error code from regmap_update_bits().
Fixes: 32e4978bb9 ("power: supply: bq256xx: Introduce the BQ256XX charger driver")
Signed-off-by: Su Hui <suhui@nfschina.com>
Link: https://lore.kernel.org/r/20231116041822.1378758-1-suhui@nfschina.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
RRT_ALRT register holds remaining battery time in minutes therefore it
needs to be scaled accordingly when exposing TIME_TO_EMPTY via sysfs
expressed in seconds
Fixes: b4c7715c10 ("power: supply: add CellWise cw2015 fuel gauge driver")
Signed-off-by: Jan Palus <jpalus@fastmail.com>
Link: https://lore.kernel.org/r/20231111221704.5579-1-jpalus@fastmail.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Link: https://lore.kernel.org/r/20231105094712.3706799-4-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Link: https://lore.kernel.org/r/20231105094712.3706799-3-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().
Returning an error if unregister_restart_handler() failed has no effect
but triggering another error message. So converting this driver to
.remove_new() has no effect but to suppress the duplicated error message.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20231104211501.3676352-30-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20231104211501.3676352-29-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20231104211501.3676352-28-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20231104211501.3676352-27-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20231104211501.3676352-26-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20231104211501.3676352-25-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20231104211501.3676352-24-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20231104211501.3676352-23-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20231104211501.3676352-22-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Link: https://lore.kernel.org/r/20231104211501.3676352-21-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20231104211501.3676352-20-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
On today's platforms the benefit of platform_driver_probe() isn't that
relevant any more. It allows to drop some code after booting (or module
loading) for .probe() and discard the .remove() function completely if
the driver is built-in. This typically saves a few 100k.
The downside of platform_driver_probe() is that the driver cannot be
bound and unbound at runtime which is ancient and so slightly
complicates testing. There are also thoughts to deprecate
platform_driver_probe() because it adds some complexity in the driver
core for little gain. Also many drivers don't use it correctly. This
driver for example misses to mark the driver struct with __ref which is
needed to suppress a (W=1) modpost warning.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Link: https://lore.kernel.org/r/20231104211501.3676352-19-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
On today's platforms the benefit of platform_driver_probe() isn't that
relevant any more. It allows to drop some code after booting (or module
loading) for .probe() and discard the .remove() function completely if
the driver is built-in. This typically saves a few 100k.
The downside of platform_driver_probe() is that the driver cannot be
bound and unbound at runtime which is ancient and so slightly
complicates testing. There are also thoughts to deprecate
platform_driver_probe() because it adds some complexity in the driver
core for little gain. Also many drivers don't use it correctly. This
driver for example misses to mark the driver struct with __ref which is
needed to suppress a (W=1) modpost warning.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Link: https://lore.kernel.org/r/20231104211501.3676352-18-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
On today's platforms the benefit of platform_driver_probe() isn't that
relevant any more. It allows to drop some code after booting (or module
loading) for .probe() and discard the .remove() function completely if
the driver is built-in. This typically saves a few 100k.
The downside of platform_driver_probe() is that the driver cannot be
bound and unbound at runtime which is ancient and so slightly
complicates testing. There are also thoughts to deprecate
platform_driver_probe() because it adds some complexity in the driver
core for little gain. Also many drivers don't use it correctly. This
driver for example misses to mark the driver struct with __ref which is
needed to suppress a (W=1) modpost warning.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Link: https://lore.kernel.org/r/20231104211501.3676352-17-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This driver uses delayed work to perform periodic battery state read out.
This delayed work is not stopped across suspend and resume cycle. The
read out can occur early in the resume cycle. In case of an I2C variant
of this hardware, that read out triggers I2C transfer. That I2C transfer
may happen while the I2C controller is still suspended, which produces a
WARNING in the kernel log.
Fix this by introducing trivial PM ops, which stop the delayed work before
the system enters suspend, and schedule the delayed work right after the
system resumes.
Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20231104154920.68585-1-marex@denx.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Replace the soft reset with a graceful reboot.
An acpi event will be triggered by the irq in the pwr-mlxbf.c
to trigger the graceful reboot.
Signed-off-by: Asmaa Mnebhi <asmaa@nvidia.com>
Link: https://lore.kernel.org/r/20231030203058.8056-1-asmaa@nvidia.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Here is the "big" set of USB and Thunderbolt changes for 6.7-rc1.
Nothing really major in here, just lots of constant development for new
hardware. Included in here are:
- Thunderbolt (i.e. USB4) fixes for reported issues and support for
new hardware types and devices
- USB typec additions of new drivers and cleanups for some existing
ones
- xhci cleanups and expanded tracing support and some platform
specific updates
- USB "La Jolla Cove Adapter (LJCA)" support added, and the gpio, spi,
and i2c drivers for that type of device (all acked by the respective
subsystem maintainers.)
- lots of USB gadget driver updates and cleanups
- new USB dwc3 platforms supported, as well as other dwc3 fixes and
cleanups
- USB chipidea driver updates
- other smaller driver cleanups and additions, full details in the
shortlog
All of these have been in the linux-next tree for a while with no
reported problems, EXCEPT for some merge conflicts that you will run
into in your tree. 2 of them are in device-tree files, which will be
trivial to resolve (accept both sides), and the last in the
drivers/gpio/gpio-ljca.c file, in the remove callback, resolution should
be pretty trivial (take the version in this branch), see here:
https://lore.kernel.org/all/20231016134159.11d8f849@canb.auug.org.au/
for details, or I can provide a resolved merge point if needed.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB/Thunderbolt updates from Greg KH:
"Here is the "big" set of USB and Thunderbolt changes for 6.7-rc1.
Nothing really major in here, just lots of constant development for
new hardware. Included in here are:
- Thunderbolt (i.e. USB4) fixes for reported issues and support for
new hardware types and devices
- USB typec additions of new drivers and cleanups for some existing
ones
- xhci cleanups and expanded tracing support and some platform
specific updates
- USB "La Jolla Cove Adapter (LJCA)" support added, and the gpio,
spi, and i2c drivers for that type of device (all acked by the
respective subsystem maintainers.)
- lots of USB gadget driver updates and cleanups
- new USB dwc3 platforms supported, as well as other dwc3 fixes and
cleanups
- USB chipidea driver updates
- other smaller driver cleanups and additions, full details in the
shortlog
All of these have been in the linux-next tree for a while with no
reported problems"
* tag 'usb-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (167 commits)
usb: gadget: uvc: Add missing initialization of ssp config descriptor
usb: storage: set 1.50 as the lower bcdDevice for older "Super Top" compatibility
usb: raw-gadget: report suspend, resume, reset, and disconnect events
usb: raw-gadget: don't disable device if usb_ep_queue fails
usb: raw-gadget: properly handle interrupted requests
usb:cdnsp: remove TRB_FLUSH_ENDPOINT command
usb: gadget: aspeed_udc: Convert to platform remove callback returning void
dt-bindings: usb: fsa4480: Add compatible for OCP96011
usb: typec: fsa4480: Add support to swap SBU orientation
dt-bindings: usb: fsa4480: Add data-lanes property to endpoint
usb: typec: tcpm: Fix NULL pointer dereference in tcpm_pd_svdm()
Revert "dt-bindings: usb: Add bindings for multiport properties on DWC3 controller"
Revert "dt-bindings: usb: qcom,dwc3: Add bindings for SC8280 Multiport"
thunderbolt: Fix one kernel-doc comment
usb: gadget: f_ncm: Always set current gadget in ncm_bind()
usb: core: Remove duplicated check in usb_hub_create_port_device
usb: typec: tcpm: Add additional checks for contaminant
arm64: dts: rockchip: rk3588s: Add USB3 host controller
usb: dwc3: add optional PHY interface clocks
dt-bindings: usb: add rk3588 compatible to rockchip,dwc3
...
Use preferred device_get_match_data() instead of of_match_device() to
get the driver match data. With this, adjust the includes to explicitly
include the correct headers.
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Link: https://lore.kernel.org/r/20231009172923.2457844-19-robh@kernel.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
strncpy() is deprecated for use on NUL-terminated destination strings
[1] and as such we should prefer more robust and less ambiguous string
interfaces.
We expect ac->name to be NUL-terminated based on its usage with format
strings:
surface_charger.c:
190: ac->psy_desc.name = ac->name;
...
power_supply_core.c:
174: dev_dbg(&psy->dev, "%s: Found supply : %s\n",
175: psy->desc->name, epsy->desc->name);
Moreover, NUL-padding is not required as ac is already zero-allocated
before being passed to spwr_ac_init():
surface_charger.c:
240: ac = devm_kzalloc(&sdev->dev, sizeof(*ac), GFP_KERNEL);
241: if (!ac)
242: return -ENOMEM;
243:
244: spwr_ac_init(ac, sdev, p->registry, p->name);
... this means any future NUL-byte assignments (like the ones that
strncpy() does) are redundant.
Considering the above, a suitable replacement is `strscpy` [2] due to
the fact that it guarantees NUL-termination on the destination buffer
without unnecessarily NUL-padding.
Let's also opt for the more idiomatic strscpy() usage of:
(dest, src, sizeof(dest))
Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1]
Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2]
Link: https://github.com/KSPP/linux/issues/90
Cc: linux-hardening@vger.kernel.org
Signed-off-by: Justin Stitt <justinstitt@google.com>
Link: https://lore.kernel.org/r/20231020-strncpy-drivers-power-supply-surface_charger-c-v1-1-93ddbf668e10@google.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
strncpy() is deprecated for use on NUL-terminated destination strings
[1] and as such we should prefer more robust and less ambiguous string
interfaces.
We expect bat->name to be NUL-terminated based on its usage with
strcmp():
power_supply_core.c:
445: return strcmp(psy->desc->name, name) == 0;
... and also by the manual `... - 1` for the length argument of the
original strncpy() invocation.
Furthermore, no NUL-padding is needed as bat is zero-allocated before
calling spwr_battery_init():
826: bat = devm_kzalloc(&sdev->dev, sizeof(*bat), GFP_KERNEL);
827: if (!bat)
828: return -ENOMEM;
829:
830: spwr_battery_init(bat, sdev, p->registry, p->name);
... this means any further NUL-byte assignments (like the ones that
strncpy() does) are redundant.
Considering the above, a suitable replacement is `strscpy` [2] due to
the fact that it guarantees NUL-termination on the destination buffer
without unnecessarily NUL-padding.
Let's also opt to use the more idiomatic strscpy() usage of:
(dest, src, sizeof(dest)).
Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1]
Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2]
Link: https://github.com/KSPP/linux/issues/90
Cc: linux-hardening@vger.kernel.org
Signed-off-by: Justin Stitt <justinstitt@google.com>
Link: https://lore.kernel.org/r/20231020-strncpy-drivers-power-supply-surface_battery-c-v2-1-29ed16b2caf1@google.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
strncpy() is deprecated for use on NUL-terminated destination strings
[1] and as such we should prefer more robust and less ambiguous string
interfaces.
We expect cm->psy_name_buf to be NUL-terminated based on its usage with
format strings:
1522: cm->charger_psy_desc.name = cm->psy_name_buf;
...
1587: dev_err(&pdev->dev, "Cannot register charger-manager with name \"%s\"\n",
1587: cm->charger_psy_desc.name);
Moreover, NUL-padding is not required as `cm` is already zero-allocated
and thus any future NUL-byte assignments (like what strncpy() will do)
are redundant:
1437: cm = devm_kzalloc(&pdev->dev, sizeof(*cm), GFP_KERNEL);
Considering the above, a suitable replacement is `strscpy` [2] due to
the fact that it guarantees NUL-termination on the destination buffer
without unnecessarily NUL-padding.
Let's also opt for the more idiomatic strscpy() usage of:
strscpy(dest, src, sizeof(dest)).
Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1]
Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2]
Link: https://github.com/KSPP/linux/issues/90
Cc: linux-hardening@vger.kernel.org
Signed-off-by: Justin Stitt <justinstitt@google.com>
Link: https://lore.kernel.org/r/20231020-strncpy-drivers-power-supply-charger-manager-c-v1-1-698f73bcad2a@google.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
strncpy() is deprecated for use on NUL-terminated destination strings
[1] and as such we should prefer more robust and less ambiguous string
interfaces.
We expect bq2515x->model_name to be NUL-terminated based on its usage with
sysfs_emit and format strings:
val->strval is assigned to bq2515x->model_name in
bq2515x_mains_get_property():
| val->strval = bq2515x->model_name;
... then in power_supply_sysfs.c we use value.strval with a format string:
| ret = sysfs_emit(buf, "%s\n", value.strval);
we assigned value.strval via:
| ret = power_supply_get_property(psy, psp, &value);
... which invokes psy->desc->get_property():
| return psy->desc->get_property(psy, psp, val);
with bq2515x_mains_get_property():
| static const struct power_supply_desc bq2515x_mains_desc = {
...
| .get_property = bq2515x_mains_get_property,
Moreover, no NUL-padding is required as bq2515x is zero-allocated in
bq2515x_charger.c:
| bq2515x = devm_kzalloc(dev, sizeof(*bq2515x), GFP_KERNEL);
Considering the above, a suitable replacement is `strscpy` [2] due to
the fact that it guarantees NUL-termination on the destination buffer
without unnecessarily NUL-padding.
Let's also opt to use the more idiomatic strscpy() usage of (dest, src,
sizeof(dest)) as this more closely ties the destination buffer and the
length.
Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1]
Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2]
Link: https://github.com/KSPP/linux/issues/90
Cc: linux-hardening@vger.kernel.org
Signed-off-by: Justin Stitt <justinstitt@google.com>
Similar-to: https://lore.kernel.org/all/20231020-strncpy-drivers-power-supply-bq24190_charger-c-v1-1-e896223cb795@google.com/
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20231020-strncpy-drivers-power-supply-bq2515x_charger-c-v1-1-46664c6edf78@google.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
strncpy() is deprecated for use on NUL-terminated destination strings
[1] and as such we should prefer more robust and less ambiguous string
interfaces.
We expect bdi->model_name to be NUL-terminated based on its usage with
sysfs_emit and format strings:
val->strval is assigned to bdi->model_name in
bq24190_charger_get_property():
1186 | val->strval = bdi->model_name;
... then in power_supply_sysfs.c we use value.strval with a format string:
311 | ret = sysfs_emit(buf, "%s\n", value.strval);
we assigned value.strval via:
285 | ret = power_supply_get_property(psy, psp, &value);
... which invokes psy->desc->get_property():
1210 | return psy->desc->get_property(psy, psp, val);
with bq24190_charger_get_property():
1320 | static const struct power_supply_desc bq24190_charger_desc = {
...
1325 | .get_property = bq24190_charger_get_property,
Moreover, no NUL-padding is required as bdi is zero-allocated in
bq24190_charger.c:
1798 | bdi = devm_kzalloc(dev, sizeof(*bdi), GFP_KERNEL);
Considering the above, a suitable replacement is `strscpy` [2] due to
the fact that it guarantees NUL-termination on the destination buffer
without unnecessarily NUL-padding.
Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1]
Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2]
Link: https://github.com/KSPP/linux/issues/90
Cc: linux-hardening@vger.kernel.org
Signed-off-by: Justin Stitt <justinstitt@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20231020-strncpy-drivers-power-supply-bq24190_charger-c-v1-1-e896223cb795@google.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Only DT based probing is used for the Motorola CPCAP charger driver, so
drop the !CONFIG_OF parts and redundant of_match_device() call.
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20231009172923.2457844-20-robh@kernel.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Depend on the explicit SoC defines rather than generic
architectures like most of the rest of the HW drivers do.
This makes the drivers only available for the HW and for
compile testing.
Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Cc: Sebastian Reichel <sre@kernel.org>
Cc: linux-pm@vger.kernel.org
Acked-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://lore.kernel.org/r/20231009135833.17880-3-pbrobinson@gmail.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Add a priority property equal to gpio-restart to allow increasing the
priority of the gpio-poweroff handler.
Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Link: https://lore.kernel.org/r/20231006130428.11259-5-francesco@dolcini.it
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Use the new sys-off handler API for gpio-poweroff. This allows us to
have more than one poweroff handler and prioritise them.
Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Link: https://lore.kernel.org/r/20231006130428.11259-3-francesco@dolcini.it
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Use a struct to store the module variables. This is required to later
move to notifier_blocks where we can have several instances.
Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Link: https://lore.kernel.org/r/20231006130428.11259-2-francesco@dolcini.it
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Currently the struct "rt5033_charger_data" is initialized rather complicated.
The cause lies inside of the struct "rt5033_charger", where struct
"rt5033_charger_data" is implemented as a pointer *chg.
Therefore, inside of struct "rt5033_charger" change the struct
"rt5033_charger_data" to non-pointer "chg". It is then initialized right
away and can be accessed more easily.
Signed-off-by: Jakob Hauser <jahau@rocketmail.com>
Link: https://lore.kernel.org/r/0aff8c2a18cf4b88ec3333f6679a8419dd76ca29.1696165240.git.jahau@rocketmail.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Implement cable detection by extcon and handle the driver according to the
connector type.
There are basically three types of action: "set_charging", "set_otg" and
"set_disconnect".
A forth helper function to "unset_otg" was added because this is used in both
"set_charging" and "set_disconnect". In the first case it covers the rather
rare event that someone changes from OTG to charging without disconnect. In
the second case, when disconnecting, the values are set back to the ones from
initialization to return into a defined state.
Additionally, there is "set_mivr". When connecting to e.g. a laptop/PC, the
minimum input voltage regulation (MIVR) shall prevent a voltage drop if the
cable or the supply is weak. The MIVR value is set to 4600MV, same as in the
Android driver [1]. When disconnecting, MIVR is set back to DISABLED.
In the function rt5033_get_charger_state(): When in OTG mode, the chip
reports status "charging". Change this to "discharging" because there is
no charging going on in OTG mode [2].
Yang Yingliang detected missing mutex_unlock() in some error path and
suggested a fix [3]. The suggestion was squashed into this patch.
[1] https://github.com/msm8916-mainline/linux-downstream/blob/GT-I9195I/drivers/battery/rt5033_charger.c#L499
[2] https://github.com/msm8916-mainline/linux-downstream/blob/GT-I9195I/drivers/battery/rt5033_charger.c#L686-L687
[3] https://lore.kernel.org/linux-pm/20230822030207.644738-1-yangyingliang@huawei.com
Tested-by: Raymond Hackley <raymondhackley@protonmail.com>
Co-developed-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Jakob Hauser <jahau@rocketmail.com>
Link: https://lore.kernel.org/r/cc4e37e510abbb0cdfa7faa8408da48c2cb448a4.1696165240.git.jahau@rocketmail.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Enabling the tps65217-charger driver/module causes an interrupt conflict
with the vbus driver resulting in a probe failure.
The conflict is resolved by changing both driver's threaded interrupt
request function from IRQF_ONESHOT to IRQF_SHARED.
Signed-off-by: Grant B Adams <nemith592@gmail.com>
Reviewed-by: Tony Lindgren <tony@atomide.com>
Link: https://lore.kernel.org/r/20230823085430.6610-2-nemith592@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
There is a missing "ret = " assignment so this checks the same "ret"
value twice.
Fixes: c75f4bf680 ("power: supply: Introduce MM8013 fuel gauge driver")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/c46b4408-bf1d-408d-9e6b-16b0ad272532@moroto.mountain
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Add the missing endianness conversion when sending the enable request so
that the driver will work also on a hypothetical big-endian machine.
This issue was reported by sparse.
Fixes: 29e8142b56 ("power: supply: Introduce Qualcomm PMIC GLINK power supply")
Cc: stable@vger.kernel.org # 6.3
Cc: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Andrew Halaney <ahalaney@redhat.com>
Link: https://lore.kernel.org/r/20230929101649.20206-1-johan+linaro@kernel.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The value of ret is zero when passed to dev_error_probe(), we are passing
zero to dev_err_probe() is a success which is incorrect.
Fix this by getting the error code using PTR_ERR().
Fixes: c75f4bf680 ("power: supply: Introduce MM8013 fuel gauge driver")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <error27@gmail.com>
Closes: https://lore.kernel.org/r/202309190838.eu8WS6sz-lkp@intel.com/
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Link: https://lore.kernel.org/r/20230923114807.2829188-1-harshit.m.mogalapalli@oracle.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Prepare for the coming implementation by GCC and Clang of the __counted_by
attribute. Flexible array members annotated with __counted_by can have
their accesses bounds-checked at run-time checking via CONFIG_UBSAN_BOUNDS
(for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family
functions).
As found with Coccinelle[1], add __counted_by for struct axp20x_usb_power.
[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
Cc: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20230922175358.work.774-kees@kernel.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Prepare for the coming implementation by GCC and Clang of the __counted_by
attribute. Flexible array members annotated with __counted_by can have
their accesses bounds-checked at run-time checking via CONFIG_UBSAN_BOUNDS
(for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family
functions).
As found with Coccinelle[1], add __counted_by for struct axp20x_ac_power.
[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
Cc: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20230922175355.work.006-kees@kernel.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Dan Carpenter reports that the Smatch static checker warning has found
that there is another refcount leak in the probe function. While
of_node_put() was added in one of the return paths, it should in
fact be added for ALL return paths that return an error and at driver
removal time.
Fixes: 54c03bfd09 ("power: supply: Fix refcount leak in rk817_charger_probe")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Closes: https://lore.kernel.org/linux-pm/dc0bb0f8-212d-4be7-be69-becd2a3f9a80@kili.mountain/
Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Link: https://lore.kernel.org/r/20230920145644.57964-1-macroalpha82@gmail.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
power_supply_uevent() which is called to emit a udev event on device
deletion attempts to use the power_supply_battery_info structure,
which is device-managed and has been freed before this point.
Fix this by not generating all battery/charger properties when the
device is about to be removed. This also avoids generating errors
when trying to access the hardware in hot-unplug scenarios.
==================================================================
BUG: KASAN: slab-use-after-free in power_supply_battery_info_has_prop (power_supply_core.c:872)
Read of size 4 at addr 0000000062e59028 by task python3/27
Call Trace:
power_supply_battery_info_has_prop (power_supply_core.c:872)
power_supply_uevent (power_supply_sysfs.c:504)
dev_uevent (drivers/base/core.c:2590)
kobject_uevent_env (lib/kobject_uevent.c:558)
kobject_uevent (lib/kobject_uevent.c:643)
device_del (drivers/base/core.c:3266 drivers/base/core.c:3831)
device_unregister (drivers/base/core.c:3730 drivers/base/core.c:3854)
power_supply_unregister (power_supply_core.c:1608)
devm_power_supply_release (power_supply_core.c:1515)
release_nodes (drivers/base/devres.c:506)
devres_release_group (drivers/base/devres.c:669)
i2c_device_remove (drivers/i2c/i2c-core-base.c:629)
device_remove (drivers/base/dd.c:570)
device_release_driver_internal (drivers/base/dd.c:1274 drivers/base/dd.c:1295)
device_driver_detach (drivers/base/dd.c:1332)
unbind_store (drivers/base/bus.c:247)
...
Allocated by task 27:
devm_kmalloc (drivers/base/devres.c:119 drivers/base/devres.c:829)
power_supply_get_battery_info (include/linux/device.h:316 power_supply_core.c:626)
__power_supply_register (power_supply_core.c:1408)
devm_power_supply_register (power_supply_core.c:1544)
bq256xx_probe (bq256xx_charger.c:1539 bq256xx_charger.c:1727) bq256xx_charger
i2c_device_probe (drivers/i2c/i2c-core-base.c:584)
really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658)
__driver_probe_device (drivers/base/dd.c:800)
device_driver_attach (drivers/base/dd.c:1128)
bind_store (drivers/base/bus.c:273)
...
Freed by task 27:
kfree (mm/slab_common.c:1073)
release_nodes (drivers/base/devres.c:503)
devres_release_all (drivers/base/devres.c:536)
device_del (drivers/base/core.c:3829)
device_unregister (drivers/base/core.c:3730 drivers/base/core.c:3854)
power_supply_unregister (power_supply_core.c:1608)
devm_power_supply_release (power_supply_core.c:1515)
release_nodes (drivers/base/devres.c:506)
devres_release_group (drivers/base/devres.c:669)
i2c_device_remove (drivers/i2c/i2c-core-base.c:629)
device_remove (drivers/base/dd.c:570)
device_release_driver_internal (drivers/base/dd.c:1274 drivers/base/dd.c:1295)
device_driver_detach (drivers/base/dd.c:1332)
unbind_store (drivers/base/bus.c:247)
...
==================================================================
Reported-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
Fixes: 27a2195efa ("power: supply: core: auto-exposure of simple-battery data")
Tested-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
When CONFIG_EXTCON=m and CONFIG_CHARGER_PM8916_LBC=y, there are
build errors. Fix them by having CHARGER_PM8916_LBC depend on the
setting of EXTCON.
aarch64-linux-ld: drivers/power/supply/pm8916_lbc.o: in function `pm8916_lbc_charger_state_changed_irq':
pm8916_lbc.c:(.text+0xe8): undefined reference to `extcon_set_state_sync'
aarch64-linux-ld: drivers/power/supply/pm8916_lbc.o: in function `pm8916_lbc_charger_probe':
pm8916_lbc.c:(.text+0x638): undefined reference to `devm_extcon_dev_allocate'
aarch64-linux-ld: pm8916_lbc.c:(.text+0x650): undefined reference to `devm_extcon_dev_register'
aarch64-linux-ld: pm8916_lbc.c:(.text+0x688): undefined reference to `extcon_set_state_sync'
Fixes: f8d7a3d211 ("power: supply: Add driver for pm8916 lbc")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Nikita Travkin <nikita@trvn.ru>
Cc: Sebastian Reichel <sre@kernel.org>
Cc: linux-pm@vger.kernel.org
Link: https://lore.kernel.org/r/20230918205825.25864-1-rdunlap@infradead.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230918133700.1254499-33-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230918133700.1254499-32-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230918133700.1254499-31-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230918133700.1254499-30-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230918133700.1254499-29-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230918133700.1254499-28-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230918133700.1254499-27-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230918133700.1254499-26-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230918133700.1254499-25-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230918133700.1254499-24-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230918133700.1254499-23-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230918133700.1254499-22-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230918133700.1254499-21-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230918133700.1254499-20-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230918133700.1254499-19-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230918133700.1254499-18-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230918133700.1254499-17-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230918133700.1254499-16-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230918133700.1254499-15-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230918133700.1254499-14-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230918133700.1254499-13-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230918133700.1254499-12-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230918133700.1254499-11-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230918133700.1254499-10-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230918133700.1254499-9-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230918133700.1254499-8-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230918133700.1254499-7-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230918133700.1254499-6-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230918133700.1254499-5-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230918133700.1254499-4-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230918133700.1254499-3-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230918133700.1254499-2-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
pm8916 LBC is a Linear Battery Charger hardware block in pm8916 PMIC.
This block implements simple CC/CV charging for Li-Po batteries.
The hardware has internal state machine to switch between modes and
works mostly autonomously, only needing the limits and targets to be
set to operate.
This driver allows setting limits and enabling the LBC block, monitoring
it's state.
Signed-off-by: Nikita Travkin <nikita@trvn.ru>
Link: https://lore.kernel.org/r/20230915-pm8916-bms-lbc-v3-4-f30881e951a0@trvn.ru
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This driver adds basic support for VM-BMS found in pm8916.
VM-BMS is a very basic fuel-gauge hardware block that is, sadly,
incapable of any gauging. The hardware supports measuring OCV in
sleep mode, where the battery is not in use, or measuring average
voltage over time when the device is active.
This driver implements basic value readout from this block.
Signed-off-by: Nikita Travkin <nikita@trvn.ru>
Link: https://lore.kernel.org/r/20230915-pm8916-bms-lbc-v3-3-f30881e951a0@trvn.ru
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Ensure that the dynamically created power supply device sets its
->of_node if the driver supplies one. This brings it in line with
several other subsystems (see git grep 'of_node =.*parent.*of_node') and
allows easier identification of the device from udev rules and similar.
Before this patch:
/sys/class/power_supply# ls -l bq256xx-battery/of_node
ls: cannot access 'bq256xx-battery/of_node': No such file or directory
# ls -l bq256xx-battery/hwmon1/of_node
ls: cannot access 'bq256xx-battery/hwmon1/of_node': No such file or directory
After:
/sys/class/power_supply# ls -l bq256xx-battery/of_node
lrwxrwxrwx 1 root root 0 May 17 09:14 bq256xx-battery/of_node ->
../../../../../../../../firmware/devicetree/base/virtio@1/i2c/bq25619@09
# ls -l bq256xx-battery/hwmon1/of_node
lrwxrwxrwx 1 root root 0 May 17 09:14 bq256xx-battery/hwmon1/of_node ->
../../../../../../../../../firmware/devicetree/base/virtio@1/i2c/bq25619@09
Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
Link: https://lore.kernel.org/r/20230915-power-of-v2-1-ca54c441867e@axis.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
It is spurious to bail-out on a wait_for_completion_timeout() call that
does NOT timeout.
Reverse the logic to return -ETIMEDOUT instead, in case of tiemout.
Fixes: 6f7f70e3a8 ("power: supply: rt9467: Add Richtek RT9467 charger driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: ChiYuan Huang <cy_huang@richtek.com>
Link: https://lore.kernel.org/r/2ed01020fa8a135c36dbaa871095ded47d926507.1676464968.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Similar to the rk817 codec alias that was missing, the rk817 charger
driver is missing a module alias as well. This absence prevents the
driver from autoprobing on OF systems when it is built as a module.
Add the right MODULE_ALIAS to fix this.
Fixes: 11cb8da018 ("power: supply: Add charger driver for Rockchip RK817")
Cc: stable@vger.kernel.org
Signed-off-by: Nicolas Frattaroli <frattaroli.nicolas@gmail.com>
Reviewed-by: Chris Morgan <macromorgan@hotmail.com>
Link: https://lore.kernel.org/r/20230612143651.959646-2-frattaroli.nicolas@gmail.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The driver reads battery properties every 8 seconds. In order to prevent
problems with wrong property values right after resume, trigger an
update of those properties on resuming the system and restart the
8-second interval from there.
Signed-off-by: Maximilian Weigand <mweigand@mweigand.net>
Link: https://lore.kernel.org/r/20230601-rk817_query_at_resume-v1-1-630b0adefbd9@mweigand.net
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This function is supposed to return 0 for success instead of returning
the val->intval. This makes it the same as the other case statements
in this function.
Fixes: 81196e2e57 ("power: supply: ucs1002: fix some health status issues")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://lore.kernel.org/r/687f64a4-4c6e-4536-8204-98ad1df934e5@moroto.mountain
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Since fuel gauge does not support thermal monitoring,
some vendors may couple this fuel gauge with thermal/adc
sensor to monitor battery cell exact temperature.
Add this feature by adding optional iio thermal channel.
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Reviewed-by: Iskren Chernev <me@iskren.info>
Link: https://lore.kernel.org/r/20230731073613.10394-4-clamor95@gmail.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Optionally pass status property from supplier if has support
for it. If cell is online assume it is present as well.
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Reviewed-by: Iskren Chernev <me@iskren.info>
Link: https://lore.kernel.org/r/20230731073613.10394-3-clamor95@gmail.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Some cleanups:
* Remove trailing comma in the terminator entry for OF/ID/ACPI table.
* Drop a space from terminator entry for OF table.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20230902193331.83672-3-biju.das.jz@bp.renesas.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Add struct bq2425x_chip_info to make enum bq2425x_chip and it's name in
sync and replace chip->info in struct bq24257_device and add struct
bq2425x_chip_info as match data for OF/ACPI/ID tables.
Simpilfy probe() by replacing acpi_match_device() and id lookup for
retrieving match data by using i2c_get_match_data().
Drop bq2425x_chip_name as there is no user and also drop the comment
related to syncing chip and name as it is taken care by struct
bq2425x_chip_info.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20230902193331.83672-2-biju.das.jz@bp.renesas.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Some cleanups:
* Remove trailing comma in the terminator entry for OF/ID table.
* Drop a space from terminator entry for OF table.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20230902200518.91585-3-biju.das.jz@bp.renesas.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Add struct bq2515x_info and replace device_id->info in struct
bq2515x_device.
Simpilfy bq2515x_read_properties() and probe() by adding struct
bq2425x_chip_info as match data for OF/ID tables and use
i2c_get_match_data for retrieving match data instead of ID lookup.
Drop enum bq2515x_id as there is no user.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20230902200518.91585-2-biju.das.jz@bp.renesas.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Just like syscon-reboot device, the syscon-poweroff is supposed to be a
child of syscon node, thus we can take the same approach as
syscon-poweroff: deprecate the 'regmap' field in favor of taking it from
the parent's node.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230901120057.47018-3-krzysztof.kozlowski@linaro.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Using CONFIG_ prefix for macros is not a good practice.
Use CONFIG_ prefix in Kconfig only.
Signed-off-by: Przemyslaw Chwiala <przemekchwiala@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Link: https://lore.kernel.org/r/20230720123102.154699-1-przemekchwiala@gmail.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
There is no need to call the dev_err_probe() function directly to print
a custom message when handling an error from platform_get_irq_byname()
function as it is going to display an appropriate error message
in case of a failure.
Signed-off-by: Ruan Jinjie <ruanjinjie@huawei.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Dhruva Gole <d-gole@ti.com>
Link: https://lore.kernel.org/r/20230727113550.2599335-1-ruanjinjie@huawei.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
There is no possible for platform_get_irq() to return 0,
and the return value of platform_get_irq() is more sensible
to show the error reason.
Signed-off-by: Ruan Jinjie <ruanjinjie@huawei.com>
Link: https://lore.kernel.org/r/20230731113959.1957820-1-ruanjinjie@huawei.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The syscon_poweroff_register() doesn't do anything special, so it can use the
builtin_platform_driver() macro to eliminate boilerplate code.
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20230807131951.3443880-6-yangyingliang@huawei.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The axxia_reset_init() doesn't do anything special, so it can use the
builtin_platform_driver() macro to eliminate boilerplate code.
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20230807131951.3443880-5-yangyingliang@huawei.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The xgene_reboot_init() doesn't do anything special, so it can use the
builtin_platform_driver() macro to eliminate boilerplate code.
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20230807131951.3443880-4-yangyingliang@huawei.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The msm_restart_init() doesn't do anything special, so it can use the
builtin_platform_driver() macro to eliminate boilerplate code.
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20230807131951.3443880-3-yangyingliang@huawei.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The st_reset_init() doesn't do anything special, so it can use the
builtin_platform_driver() macro to eliminate boilerplate code.
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20230807131951.3443880-2-yangyingliang@huawei.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
When building with clang 18 I see the following warning:
| drivers/power/reset/vexpress-poweroff.c:124:10: warning: cast to smaller integer type 'enum vexpress_reset_func' from 'const void *' [-Wvoid-pointer-to-enum-cast]
| 124 | switch ((enum vexpress_reset_func)match->data) {
This is due to the fact that `match->data` is a void* while `enum vexpress_reset_func`
has the size of an int. This leads to truncation and possible data loss.
Link: https://github.com/ClangBuiltLinux/linux/issues/1910
Reported-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Justin Stitt <justinstitt@google.com>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Some errors are being logged that are really due to deferrals,
which is confusing to users. Use dev_err_probe() to handle when to log
at error level versus debug. This also has the added bonuses of logging
to devices_deferred and printing the error value.
Signed-off-by: Andrew Halaney <ahalaney@redhat.com>
Reviewed-by: Brian Masney <bmasney@redhat.com>
Tested-by: Brian Masney <bmasney@redhat.com>
Link: https://lore.kernel.org/r/20230817214218.638846-1-ahalaney@redhat.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Documentation/process/license-rules.rst and checkpatch expect the SPDX
identifier syntax for multiple licenses to use capital "OR". Correct it
to keep consistent format and avoid copy-paste issues.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230823085601.116562-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The BlueField power handling driver (pwr-mlxbf.c) provides
functionality for both BlueField-2 and BlueField-3 based
platforms. This driver also depends on the SoC-specific
BlueField GPIO driver, whether gpio-mlxbf2 or gpio-mlxbf3.
This patch extends the Kconfig definition to include the
dependency on the gpio-mlxbf3 driver, if applicable.
Signed-off-by: David Thompson <davthompson@nvidia.com>
Reviewed-by: Asmaa Mnebhi <asmaa@nvidia.com>
Link: https://lore.kernel.org/r/20230823133743.31275-1-davthompson@nvidia.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
CHARGER_RT5033 should honor the EXTCON setting to prevent these
build errors:
riscv64-linux-ld: drivers/power/supply/rt5033_charger.o: in function `.L33':
rt5033_charger.c:(.text.rt5033_charger_probe+0x578): undefined reference to `extcon_find_edev_by_node'
riscv64-linux-ld: drivers/power/supply/rt5033_charger.o: in function `.L0 ':
rt5033_charger.c:(.text.rt5033_charger_probe+0x64e): undefined reference to `devm_extcon_register_notifier_all'
riscv64-linux-ld: drivers/power/supply/rt5033_charger.o: in function `.L96':
rt5033_charger.c:(.text.rt5033_charger_extcon_work+0x32): undefined reference to `extcon_get_state'
Fixes: 12cc585f36b8 ("power: supply: rt5033_charger: Add cable detection and USB OTG supply")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jakob Hauser <jahau@rocketmail.com>
Cc: Sebastian Reichel <sre@kernel.org>
Cc: Lee Jones <lee@kernel.org>
Cc: linux-pm@vger.kernel.org
Link: https://lore.kernel.org/r/20230828224201.26823-1-rdunlap@infradead.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Make similar OF and ID table to extend support for ID match
using i2c_match_data(). Currently it works only for OF match
tables as the field is wrong for ID match.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20230831171235.58477-1-biju.das.jz@bp.renesas.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Some cleanups:
* Remove trailing comma in the terminator entry for OF/ID/ACPI table.
* Drop a space from terminator entry for OF table.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20230902202505.97609-3-biju.das.jz@bp.renesas.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Use i2c_get_match_data() for OF/ID/ACPI match instead of ID lookup by
replacing OF/ACPI/ID match data from enum bq256xx_id to
struct bq256xx_chip_info.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20230902202505.97609-2-biju.das.jz@bp.renesas.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
When mt6370_chg_field_get() suceeds, ret is set to zero and returning
zero when flash led is still in strobe mode looks incorrect.
Fixes: 233cb8a47d ("power: supply: mt6370: Add MediaTek MT6370 charger driver")
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: ChiaEn Wu <chiaen_wu@richtek.com>
Link: https://lore.kernel.org/r/20230906084815.2827930-1-harshit.m.mogalapalli@oracle.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
I had the following weird phenomena on a mobile phone: while
the capacity in /sys/class/power_supply/ab8500_fg/capacity
would reflect the actual charge and capacity of the battery,
only 1/3 of the value was shown on the battery status
indicator and warnings for low battery appeared.
It turns out that UPower, the Freedesktop power daemon,
will average all the power supplies of type "battery" in
/sys/class/power_supply/* if there is more than one battery.
For the AB8500, there was "battery" ab8500_fg, ab8500_btemp
and ab8500_chargalg. The latter two don't know anything
about the battery, and should not be considered. They were
however averaged and with the capacity of 0.
Flag ab8500_btemp and ab8500_chargalg with type "unknown"
so they are not averaged as batteries.
Remove the technology prop from ab8500_btemp as well, all
it does is snoop in on knowledge from another supply.
After this the battery indicator shows the right value.
Cc: Stefan Hansson <newbyte@disroot.org>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
All of the remaining callers of thermal_zone_device_register()
can use thermal_tripless_zone_device_register(), so make them
do so in order to allow the former to be dropped.
No intentional functional impact.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Miquel Raynal <miquel.raynal@bootlin.com>
The INHIBIT_CHARGE status bit means the battery has reached a
pre-programmed charge limit which is some voltage offset below the
target float voltage. This should be reported as a STATUS_FULL rather
than UNKNOWN, fix it.
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
Link: https://lore.kernel.org/r/20230802-pmi8998-charger-fixes-v1-2-a8f1e8b84c1e@linaro.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
These property were intended to allow the power supply to be treated as a
cooling device, however the cooling device interface has been dropped
from the psy core code. They now just duplicate the CURRENT_NOW and
CURRENT_MAX properties and are generally confusing, drop them.
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
Link: https://lore.kernel.org/r/20230802-pmi8998-charger-fixes-v1-1-a8f1e8b84c1e@linaro.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Due to lack of maintenance and stall of development for a few years now,
and since no new features will ever be added upstream, remove support
for OX810 and OX820 restart feature.
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Daniel Golle <daniel@makrotopia.org>
Acked-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
When the power supply device being registered supports a temperature
readout, the core registers a thermal zone for it. The thermal core
would register a hwmon device for that unless told otherwise.
When CONFIG_POWER_SUPPLY_HWMON is enabled, the power supply core creates
a hwmon device. This results in a second entry, one which has a better
name than the one registered through the thermal framework. It could
potentially have readouts other than temperature.
To simplify the result, tell the thermal framework to not register a
hwmon device if CONFIG_POWER_SUPPLY_HWMON is enabled. The result is
one hwmon device with all the readings the device supports.
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Use devm_platform_ioremap_resource() to simplify code.
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Use devm_platform_ioremap_resource() to simplify code.
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Use devm_platform_ioremap_resource() to simplify code.
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Use devm_platform_ioremap_resource() to simplify code.
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Acked-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Use devm_platform_ioremap_resource() to simplify code.
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Use devm_platform_ioremap_resource() to simplify code.
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Introduce a list of generic reset sources and use them to export the
power on reason through sysfs. Update the ABI documentation to describe
this new interface.
Signed-off-by: Kamel Bouhara <kamel.bouhara@bootlin.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
[Miquel Raynal: Follow-up on Kamel's work, 4 years later]
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Don't populate the read-only array on the stack, instead make it
static const.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Reviewed-by: Matti Vaittinen <mazziesaccount@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Adds a check of the FORCE_20PCT bit when getting the precharge
current value.
According to the bit description for the FORCE_20PCT bit, when
FORCE_20PCT is true, the precharge current target is 50% of
what is configured in the IPRECHG bit field.
Signed-off-by: Ricardo Rivera-Matos <rriveram@opensource.cirrus.com>
Reviewed-by: David Rhodes <drhodes@opensource.cirrus.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The DT of_device.h and of_platform.h date back to the separate
of_platform_bus_type before it as merged into the regular platform bus.
As part of that merge prepping Arm DT support 13 years ago, they
"temporarily" include each other. They also include platform_device.h
and of.h. As a result, there's a pretty much random mix of those include
files used throughout the tree. In order to detangle these headers and
replace the implicit includes with struct declarations, users need to
explicitly include the correct includes.
Acked-by: David Lechner <david@lechnology.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
* Add new Qualcomm PMI8998/PM660 SMB2 charger
* bq256xx: support systems without thermistors
* cros_pchg: fix peripheral device status after system resume
* axp20x_usb_power: add support for AXP192
* qcom-pon: add support for pm8941
* at91-reset: prepare to expose reset reason to sysfs
* switch all I2C drivers back to use .probe instead of .probe_new
* convert some more DT bindings to YAML
* misc. cleanups
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Merge tag 'for-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply
Pull power supply and reset updates from Sebastian Reichel:
- Add new Qualcomm PMI8998/PM660 SMB2 charger
- bq256xx: support systems without thermistors
- cros_pchg: fix peripheral device status after system resume
- axp20x_usb_power: add support for AXP192
- qcom-pon: add support for pm8941
- at91-reset: prepare to expose reset reason to sysfs
- switch all I2C drivers back to use .probe instead of .probe_new
- convert some more DT bindings to YAML
- misc cleanups
* tag 'for-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (28 commits)
MAINTAINERS: add documentation file for Microchip SAMA5D2 shutdown controller
dt-bindings: power: reset: atmel,sama5d2-shdwc: convert to yaml
dt-bindings: power: reset: atmel,at91sam9260-shdwc: convert to yaml
power: reset: at91-reset: change the power on reason prototype
power: reset: qcom-pon: add support for pm8941-pon
dt-bindings: power: reset: qcom-pon: define pm8941-pon
power: supply: add Qualcomm PMI8998 SMB2 Charger driver
dt-bindings: power: supply: qcom,pmi8998-charger: add bindings for smb2 driver
power: supply: rt9467: Make charger-enable control as logic level
power: supply: Switch i2c drivers back to use .probe()
power: reset: add HAS_IOPORT dependencies
dt-bindings: power: supply: axp20x: Add AXP192 compatible
power: supply: axp20x_usb_power: Add support for AXP192
power: supply: axp20x_usb_power: Remove variant IDs from VBUS polling check
power: supply: axp20x_usb_power: Use regmap field for VBUS disabling
power: supply: axp20x_usb_power: Use regmap fields for USB BC feature
power: supply: axp20x_usb_power: Use regmap fields for VBUS monitor feature
power: supply: axp20x_usb_power: Simplify USB current limit handling
power: supply: hwmon: constify pointers to hwmon_channel_info
power: supply: twl4030_madc_battery: Refactor twl4030_madc_bat_ext_changed()
...
- Add support for Intel Cherry Trail Whiskey Cove PMIC LEDs
- Add support for Awinic AW20036/AW20054/AW20072 LEDs
- New Device Support
- Add support for PMI632 LPG to QCom LPG
- Add support for PMI8998 to QCom Flash
- Add support for MT6331, WLEDs and MT6332 to Mediatek MT6323 PMIC
- New Functionality
- Implement the LP55xx Charge Pump
- Add support for suspend / resume to Intel Cherry Trail Whiskey Cove PMIC
- Add support for breathing mode to Intel Cherry Trail Whiskey Cove PMIC
- Enable per-pin resolution Pinctrl in LEDs GPIO
- Fix-ups
- Allow thread to sleep by switching from spinlock to mutex
- Add lots of Device Tree bindings / support
- Adapt relationships / dependencies driven by Kconfig
- Switch I2C drivers from .probe_new() to .probe()
- Remove superfluous / duplicate code
- Replace strlcpy() with strscpy() for efficiency and overflow prevention
- Staticify various functions
- Trivial: Fixing coding style
- Simplify / reduce code
- Bug Fixes
- Prevent NETDEV_LED_MODE_LINKUP from being cleared on rename
- Repair race between led_set_brightness(LED_{OFF,FULL})
- Fix Oops relating to sleeping in critical sections
- Clear LED_INIT_DEFAULT_TRIGGER flag when clearing the current trigger
- Do not leak resources in error handling paths
- Fix unsigned comparison which can never be negative
- Provide missing NULL terminating entries in tables
- Fix misnaming issues
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Merge tag 'leds-next-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds
Pull LED updates from Lee Jones:
"New Drivers:
- Add support for Intel Cherry Trail Whiskey Cove PMIC LEDs
- Add support for Awinic AW20036/AW20054/AW20072 LEDs
New Device Support:
- Add support for PMI632 LPG to QCom LPG
- Add support for PMI8998 to QCom Flash
- Add support for MT6331, WLEDs and MT6332 to Mediatek MT6323 PMIC
New Functionality:
- Implement the LP55xx Charge Pump
- Add support for suspend / resume to Intel Cherry Trail Whiskey Cove PMIC
- Add support for breathing mode to Intel Cherry Trail Whiskey Cove PMIC
- Enable per-pin resolution Pinctrl in LEDs GPIO
Fix-ups:
- Allow thread to sleep by switching from spinlock to mutex
- Add lots of Device Tree bindings / support
- Adapt relationships / dependencies driven by Kconfig
- Switch I2C drivers from .probe_new() to .probe()
- Remove superfluous / duplicate code
- Replace strlcpy() with strscpy() for efficiency and overflow prevention
- Staticify various functions
- Trivial: Fixing coding style
- Simplify / reduce code
Bug Fixes:
- Prevent NETDEV_LED_MODE_LINKUP from being cleared on rename
- Repair race between led_set_brightness(LED_{OFF,FULL})
- Fix Oops relating to sleeping in critical sections
- Clear LED_INIT_DEFAULT_TRIGGER flag when clearing the current trigger
- Do not leak resources in error handling paths
- Fix unsigned comparison which can never be negative
- Provide missing NULL terminating entries in tables
- Fix misnaming issues"
* tag 'leds-next-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds: (53 commits)
leds: leds-mt6323: Adjust return/parameter types in wled get/set callbacks
leds: sgm3140: Add richtek,rt5033-led compatible
dt-bindings: leds: sgm3140: Document richtek,rt5033 compatible
dt-bindings: backlight: kinetic,ktz8866: Add missing type for "current-num-sinks"
dt-bindings: leds: Drop unneeded quotes
leds: Fix config reference for AW200xx driver
leds: leds-mt6323: Add support for WLEDs and MT6332
leds: leds-mt6323: Add support for MT6331 leds
leds: leds-mt6323: Open code and drop MT6323_CAL_HW_DUTY macro
leds: leds-mt6323: Drop MT6323_ prefix from macros and defines
leds: leds-mt6323: Specify registers and specs in platform data
dt-bindings: leds: leds-mt6323: Document mt6332 compatible
dt-bindings: leds: leds-mt6323: Document mt6331 compatible
leds: simatic-ipc-leds-gpio: Introduce more Kconfig switches
leds: simatic-ipc-leds-gpio: Split up into multiple drivers
leds: simatic-ipc-leds-gpio: Move two extra gpio pins into another table
leds: simatic-ipc-leds-gpio: Add terminating entries to gpio tables
leds: flash: leds-qcom-flash: Fix an unsigned comparison which can never be negative
leds: cht-wcove: Remove unneeded semicolon
leds: cht-wcove: Fix an unsigned comparison which can never be negative
...
- Add support for TI TPS6594/TPS6593/LP8764 PMICs
- Add support for Samsung RT5033 Battery Charger
- Add support for Analog Devices MAX77540 and MAX77541 PMICs
- New Device Support
- Add support for SPI to Rockchip RK808 (and friends)
- Add support for AXP192 PMIC to X-Powers AXP20X
- Add support for AXP313a PMIC to X-Powers AXP20X
- Add support for RK806 to Rockchip RK8XX
- Removed Device Support
- Removed MFD support for Richtek RT5033 Battery
- Fix-ups
- Remove superfluous code
- Switch I2C drivers from .probe_new() to .probe()
- Convert over to managed resources (devm_*(), etc)
- Use dev_err_probe() for returning errors from .probe()
- Add lots of Device Tree bindings / support
- Improve cache efficiency by switching to Maple
- Use own exported namespaces (NS)
- Include missing and remove superfluous headers
- Start using / convert to the new shutdown sys-off API
- Trivial: variable / define renaming
- Make use of of_property_read_reg() when requesting DT 'reg's
- Bug Fixes
- Fix chip revision readout due to incorrect data masking
- Amend incorrect register and mask values used for charger state
- Hide unused functionality at compile time
- Fix resource leaks following error handling routines
- Return correct error values and fix error handling in general
- Repair incorrect device names - used for device matching
- Remedy broken module auto-loading
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Merge tag 'mfd-next-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
"New Drivers:
- Add support for TI TPS6594/TPS6593/LP8764 PMICs
- Add support for Samsung RT5033 Battery Charger
- Add support for Analog Devices MAX77540 and MAX77541 PMICs
New Device Support:
- Add support for SPI to Rockchip RK808 (and friends)
- Add support for AXP192 PMIC to X-Powers AXP20X
- Add support for AXP313a PMIC to X-Powers AXP20X
- Add support for RK806 to Rockchip RK8XX
Removed Device Support:
- Removed MFD support for Richtek RT5033 Battery
Fix-ups:
- Remove superfluous code
- Switch I2C drivers from .probe_new() to .probe()
- Convert over to managed resources (devm_*(), etc)
- Use dev_err_probe() for returning errors from .probe()
- Add lots of Device Tree bindings / support
- Improve cache efficiency by switching to Maple
- Use own exported namespaces (NS)
- Include missing and remove superfluous headers
- Start using / convert to the new shutdown sys-off API
- Trivial: variable / define renaming
- Make use of of_property_read_reg() when requesting DT 'reg's
Bug Fixes:
- Fix chip revision readout due to incorrect data masking
- Amend incorrect register and mask values used for charger state
- Hide unused functionality at compile time
- Fix resource leaks following error handling routines
- Return correct error values and fix error handling in general
- Repair incorrect device names - used for device matching
- Remedy broken module auto-loading"
* tag 'mfd-next-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (51 commits)
dt-bindings: mfd: max77541: Add ADI MAX77541/MAX77540
iio: adc: max77541: Add ADI MAX77541 ADC Support
regulator: max77541: Add ADI MAX77541/MAX77540 Regulator Support
dt-bindings: regulator: max77541: Add ADI MAX77541/MAX77540 Regulator
mfd: Switch two more drivers back to use struct i2c_driver::probe
dt-bindings: mfd: samsung,s5m8767: Simplify excluding properties
mfd: stmpe: Only disable the regulators if they are enabled
mfd: max77541: Add ADI MAX77541/MAX77540 PMIC Support
dt-bindings: mfd: gateworks-gsc: Remove unnecessary fan-controller nodes
mfd: core: Use of_property_read_reg() to parse "reg"
mfd: stmfx: Nullify stmfx->vdd in case of error
mfd: stmfx: Fix error path in stmfx_chip_init
mfd: intel-lpss: Add missing check for platform_get_resource
mfd: stpmic1: Add PMIC poweroff via sys-off handler
mfd: stpmic1: Fixup main control register and bits naming
dt-bindings: mfd: qcom,tcsr: Add the compatible for IPQ8074
mfd: tps65219: Add support for soft shutdown via sys-off API
mfd: pm8008: Drop bogus i2c module alias
mfd: pm8008: Fix module autoloading
mfd: tps65219: Add GPIO cell instance
...
It is quite uncommon to use a driver helper with parameters like *pdev
and __iomem *base. It is much cleaner and close to today's standards to
provide the per-device driver structure and then access its
internals. Let's do this with the helper which returns the power on
reason. While we change the parameters, we can as well rename the
function from at91_reset_status() to at91_reset_reason() to be more
accurate with what the helper actually does, and finally because we don't
really need the pdev argument in this helper besides for printing the
reset reason, we can move the dev_info() call into the probe.
All these modifications prepare the introduction of a sysfs entry to
access this information. This way the diff will be much smaller. Thus,
there is no intended functional change.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
For PM8941 we don't have a defined field to store the reset reason.
Support wrapping pwrkey and resin, but without writing the reset
reason.
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Add a driver for the SMB2 charger block found in the Qualcomm PMI8998
and PM660.
This driver is capable of utilising Qualcomm's Automatic Power Source
Detection (APSD) BC1.2 implementation, as well as Automatic Input
Current Limiting (AICL) to configure the maximum input current
limit of DCP (wall) chargers.
Quick Charge is not currently supported.
Most devices using the smb2 charger have a secondary dedicated charger
chip which is used in parallel to enable faster charger without
overheating. However, not all do, as a result to ensure safety until
these are supported, the maximum current is limited to ~1A via the
FAST_CHARGE_CURRENT_CFG register.
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
Tested-by: Joel Selvaraj <joelselvaraj.oss@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The rt5033-battery fuelgauge can't get a status by itself. The rt5033-charger
can, let's get this value.
To get the charger as a "supplier" from the devicetree, the "of_node" needs
to be initiated.
Additionally, in the probe function replace dev_err() with dev_err_probe(),
this will avoid printing an error for -EPROBE_DEFER when the battery driver
probes before the charger driver.
Signed-off-by: Jakob Hauser <jahau@rocketmail.com>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/a2015d257b145108a3ecdf107a3040362c887fc5.1684182964.git.jahau@rocketmail.com
Move struct rt5033_battery from the mfd header into the battery driver because
it's not used by others.
Within struct rt5033_battery, remove the line "struct rt5033_dev *rt5033;"
because it doesn't get used.
In rt5033.h, remove #include <linux/power_supply.h>, it's not necessary
anymore.
In rt5033_battery.c, remove #include <linux/mfd/rt5033.h>, it's not necessary
anymore either. Instead add #include <linux/regmap.h> and
Signed-off-by: Jakob Hauser <jahau@rocketmail.com>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/736e1cbee257853cb3d1da6f05c184e9a053263b.1684182964.git.jahau@rocketmail.com
This patch adds device driver of Richtek RT5033 PMIC. The driver supports
switching charger. rt5033 charger provides three charging modes. The charging
modes are pre-charge mode, fast charge mode and constant voltage mode. They
vary in charge rate, the charge parameters can be controlled by i2c interface.
Tested-by: Raymond Hackley <raymondhackley@protonmail.com>
Signed-off-by: Jakob Hauser <jahau@rocketmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/9556d4ebb30fd321e37aa0eb343554122e4720c9.1684182964.git.jahau@rocketmail.com
The current coding make 'charger-enable-gpio' control as real hardware
level. This conflicts with the default binding example. For driver
behavior, no need to use real hardware level, just logic level is
enough. This change can make this flexibility keep in dts gpio active
level about this pin.
Fixes: 6f7f70e3a8 ("power: supply: rt9467: Add Richtek RT9467 charger driver")
Signed-off-by: ChiYuan Huang <cy_huang@richtek.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Merge series from Vijaya Krishna Nivarthi <quic_vnivarth@quicinc.com>:
A "known issue" during implementation of SE DMA for spi geni driver was
that it does DMA map/unmap internally instead of in spi framework.
Current patches remove this hiccup and also clean up code a bit.
Testing revealed no regressions and results with 1000 iterations of
reading from EC showed no loss of performance.
Results
=======
Before - Iteration 999, min=5.10, max=5.17, avg=5.14, ints=25129
After - Iteration 999, min=5.10, max=5.20, avg=5.15, ints=25153
After commit b8a1a4cd5a ("i2c: Provide a temporary .probe_new()
call-back type"), all drivers being converted to .probe_new() and then
03c835f498 ("i2c: Switch .probe() to not take an id parameter") convert
back to (the new) .probe() to be able to eventually drop .probe_new() from
struct i2c_driver.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
led_blink_set[_oneshot]()'s delay_on and delay_off function parameters
are pass by reference, so that hw-blink implementations can report
back the actual achieved delays when the values have been rounded
to something the hw supports.
This is really only interesting for the sysfs API / the timer trigger.
Other triggers don't really care about this and none of the callers of
led_trigger_blink[_oneshot]() do anything with the returned delay values.
Change the led_trigger_blink[_oneshot]() delay parameters to pass-by-value,
there are 2 reasons for this:
1. led_cdev->blink_set() may sleep, while led_trigger_blink() may not.
So on hw where led_cdev->blink_set() sleeps the call needs to be deferred
to a workqueue, in which case the actual achieved delays are unknown
(this is a preparation patch for the deferring).
2. Since the callers don't care about the actual achieved delays, allowing
callers to directly pass a value leads to simpler code for most callers.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Tested-by: Yauhen Kharuzhy <jekhor@gmail.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Acked-by: Florian Westphal <fw@strlen.de>
Link: https://lore.kernel.org/r/20230510162234.291439-2-hdegoede@redhat.com
Signed-off-by: Lee Jones <lee@kernel.org>
The logic used for power_supply_is_system_supplied() counts all power
supplies and assumes that the system is running from AC if there is
either a non-battery power-supply reporting to be online or if no
power-supplies exist at all.
The second rule is for desktop systems, that don't have any
battery/charger devices. These systems will incorrectly report to be
powered from battery once a device scope power-supply is registered
(e.g. a HID device), since these power-supplies increase the counter.
Apart from HID devices, recent dGPUs provide UCSI power supplies on a
desktop systems. The dGPU by default doesn't have anything plugged in so
it's 'offline'. This makes power_supply_is_system_supplied() return 0
with a count of 1 meaning all drivers that use this get a wrong judgement.
To fix this case adjust the logic to also examine the scope of the power
supply. If the power supply is deemed a device power supply, then don't
count it.
Cc: Evan Quan <Evan.Quan@amd.com>
Suggested-by: Lijo Lazar <Lijo.Lazar@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
In a future patch HAS_IOPORT=n will result in inb()/outb() and friends
not being declared. We thus need to add HAS_IOPORT as dependency for
those drivers using them.
Co-developed-by: Arnd Bergmann <arnd@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@kernel.org>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
CHARGE_INHIBITED bit position of the ChargerStatus register is actually
0 not 1. This patch corrects it.
Fixes: feb583e37f ("power: supply: add sbs-charger driver")
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Add support for the AXP192. It is most similar to the AXP202 but
the current limits are different and the USB OTG status register
has a different address (0x04 instead of 0x02).
Signed-off-by: Aidan MacDonald <aidanmacdonald.0x0@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Use an explicit boolean flag instead of a check based on the
variant ID. Since this is the last use of variant IDs in the
driver, also remove the IDs.
Signed-off-by: Aidan MacDonald <aidanmacdonald.0x0@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The POWER_SUPPLY_PROP_ONLINE property allows controlling the VBUS
enable state on supported PMICs. Switch to regmap fields to reduce
dependence on variant IDs.
Signed-off-by: Aidan MacDonald <aidanmacdonald.0x0@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Replace the use of variant IDs with a regmap field, to reduce
dependence on variant IDs.
Signed-off-by: Aidan MacDonald <aidanmacdonald.0x0@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Use regmap fields to describe the VBUS valid bit and VBUS monitor
enable bit. This allows the driver to easily support other chips,
eg. the AXP192, that have the VBUS valid bit in a different register.
Signed-off-by: Aidan MacDonald <aidanmacdonald.0x0@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Handle the USB current limit with a lookup table and regmap field,
which minimizes code duplication. Invalid or unlimited values are
denoted by -1 entries, and can't be selected from userspace.
Signed-off-by: Aidan MacDonald <aidanmacdonald.0x0@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Split rk808 into a core and an i2c part in preparation for
SPI support.
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> # for RTC
Tested-by: Diederik de Haas <didi.debian@cknow.org> # Rock64, Quartz64 Model A + B
Tested-by: Vincent Legoll <vincent.legoll@gmail.com> # Pine64 QuartzPro64
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Link: https://lore.kernel.org/r/20230504173618.142075-6-sebastian.reichel@collabora.com
Signed-off-by: Lee Jones <lee@kernel.org>
Reduce the amount of output this dev_dbg() statement emits into logs,
otherwise if system software polls the sysfs entry for data and keeps
getting -ENODATA, it could end up filling the logs up.
This does in fact make systemd journald choke, since during boot the
sysfs power supply entries are polled and if journald starts at the
same time, the journal is just being repeatedly filled up, and the
system stops on trying to start journald without booting any further.
Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Statically allocated array of pointed to hwmon_channel_info can be made
const for safety.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The bq24192 model relies on external charger-type detection and once
that is done the bq24190_charger code will update the input current.
In this case, when the initial power_supply_changed() call is made
from the interrupt handler, the input settings are 5V/0.5A which
on many devices is not enough power to charge (while the device is on).
On many devices the fuel-gauge relies in its external_power_changed
callback to timely signal userspace about charging <-> discharging
status changes. Add a power_supply_changed() call after updating
the input current. This allows the fuel-gauge driver to timely recheck
if the battery is charging after the new input current has been applied
and then it can immediately notify userspace about this.
Fixes: 18f8e6f695 ("power: supply: bq24190_charger: Get input_current_limit from our supplier")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The bq25892 model relies on external charger-type detection and once
that is done the bq25890_charger code will update the input current
and if pumpexpress is used also the input voltage.
In this case, when the initial power_supply_changed() call is made
from the interrupt handler, the input settings are 5V/0.5A which
on many devices is not enough power to charge (while the device is on).
On many devices the fuel-gauge relies in its external_power_changed
callback to timely signal userspace about charging <-> discharging
status changes. Add a power_supply_changed() call after updating
the input current or voltage. This allows the fuel-gauge driver
to timely recheck if the battery is charging after the new input
settings have been applied and then it can immediately notify
userspace about this.
Fixes: 48f45b094d ("power: supply: bq25890: Support higher charging voltages through Pump Express+ protocol")
Fixes: eab25b4f93 ("power: supply: bq25890: On the bq25892 set the IINLIM based on external charger detection")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Use mod_delayed_work() instead of separate cancel_delayed_work_sync() +
schedule_delayed_work() calls.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
bq27xxx_external_power_changed() gets called when the charger is plugged
in or out. Rather then immediately scheduling an update wait 0.5 seconds
for things to stabilize, so that e.g. the (dis)charge current is stable
when bq27xxx_battery_update() runs.
Fixes: 740b755a3b ("bq27x00: Poll battery state")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
On gauges where the current register is signed, there is no charging
flag in the flags register. So only checking flags will not result
in power_supply_changed() getting called when e.g. a charger is plugged
in and the current sign changes from negative (discharging) to
positive (charging).
This causes userspace's notion of the status to lag until userspace
does a poll.
And when a power_supply_leds.c LED trigger is used to indicate charging
status with a LED, this LED will lag until the capacity percentage
changes, which may take many minutes (because the LED trigger only is
updated on power_supply_changed() calls).
Fix this by calling bq27xxx_battery_current_and_status() on gauges with
a signed current register and checking if the status has changed.
Fixes: 297a533b3e ("bq27x00: Cache battery registers")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Move the bq27xxx_battery_update() functions to below
the bq27xxx_battery_current_and_status() function.
This is just moving a block of text, no functional changes.
This is a preparation patch for making bq27xxx_battery_update() check
the status and have it call power_supply_changed() on status changes.
Fixes: 297a533b3e ("bq27x00: Cache battery registers")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Add a cache parameter to bq27xxx_battery_current_and_status() so that
it can optionally use cached flags instead of re-reading them itself.
This is a preparation patch for making bq27xxx_battery_update() check
the status and have it call power_supply_changed() on status changes.
Fixes: 297a533b3e ("bq27x00: Cache battery registers")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Before this patch bq27xxx_battery_teardown() was setting poll_interval = 0
to avoid bq27xxx_battery_update() requeuing the delayed_work item.
There are 2 problems with this:
1. If the driver is unbound through sysfs, rather then the module being
rmmod-ed, this changes poll_interval unexpectedly
2. This is racy, after it being set poll_interval could be changed
before bq27xxx_battery_update() checks it through
/sys/module/bq27xxx_battery/parameters/poll_interval
Fix this by added a removed attribute to struct bq27xxx_device_info and
using that instead of setting poll_interval to 0.
There also is another poll_interval related race on remove(), writing
/sys/module/bq27xxx_battery/parameters/poll_interval will requeue
the delayed_work item for all devices on the bq27xxx_battery_devices
list and the device being removed was only removed from that list
after cancelling the delayed_work item.
Fix this by moving the removal from the bq27xxx_battery_devices list
to before cancelling the delayed_work item.
Fixes: 8cfaaa8118 ("bq27x00_battery: Fix OOPS caused by unregistring bq27x00 driver")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
devm_request_threaded_irq() requested IRQs are only free-ed after
the driver's remove function has ran. So the IRQ could trigger and
call bq27xxx_battery_update() after bq27xxx_battery_teardown() has
already run.
Switch to explicitly free-ing the IRQ in bq27xxx_battery_i2c_remove()
to fix this.
Fixes: 8807feb91b ("power: bq27xxx_battery: Add interrupt handling support")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
