Currently the documentation for line names allows to use %u inside
the alternative name. This is broken in character device approach
from day 1 and being in use solely in sysfs.
Character device interface has a line number as a part of its address,
so the users better rely on it. Hence remove the misleading documentation.
On top of that, there are no in-kernel users (out of 6, if I'm correct)
for such names and moreover if one exists it won't help in distinguishing
lines with the same naming as '%u' will also be in them and we will get
a warning in gpiochip_set_desc_names() for such cases.
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Kent Gibson <warthog618@gmail.com>
Link: https://lore.kernel.org/r/20240505141420.627398-1-andy.shevchenko@gmail.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
The gpio_device_find_by_() functions do not have stubs which means that if
they are referenced from code with an optiona dependency on gpiolib then
the code will fail to link. Add stubs for lookups via fwnode and label. I
have not added a stub for plain gpio_device_find() since it seems harder to
see a use case for that which does not depend on gpiolib.
With the addition of the GPIO reset controller (which lacks a gpiolib
dependency) to the arm64 defconfig this is causing build breaks for arm64
virtconfig in -next:
aarch64-linux-gnu-ld: drivers/reset/core.o: in function `__reset_add_reset_gpio_lookup':
/build/stage/linux/drivers/reset/core.c:861:(.text+0xccc): undefined reference to `gpio_device_find_by_fwnode'
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
We only provide iterators for requested GPIOs to provider drivers. In
order to allow them to display debug information about all GPIOs, let's
provide a variant for iterating over all GPIOs.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
The opaque pointer "data" in each match function used by
gpio_device_find() is a pointer to const, thus the same argument passed
to gpio_device_find() can adjusted similarly.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Add empty stub of gpio_device_get_label() when GPIOLIB is not enabled.
Cc: <stable@vger.kernel.org>
Fixes: d1f7728259 ("gpiolib: provide gpio_device_get_label()")
Suggested-by: kernel test robot <lkp@intel.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Add empty stub of gpio_device_get_base() when GPIOLIB is not enabled.
Cc: <stable@vger.kernel.org>
Fixes: 8c85a102fc ("gpiolib: provide gpio_device_get_base()")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Add empty stub of gpiod_to_gpio_device() when GPIOLIB is not enabled.
Cc: <stable@vger.kernel.org>
Fixes: 370232d096 ("gpiolib: provide gpiod_to_gpio_device()")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
The match function used in gpio_device_find() should not modify the
contents of passed opaque pointer, because such modification would not
be necessary for actual matching and it could lead to quite unreadable,
spaghetti code.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
[Bartosz: fix coding style in header]
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
If a GPIO driver returns a positive integer from one of the direction
setter callbacks, we'll end up propagating it to user-space. Whether we
should sanitize the values returned by callbacks is a different question
but let's first improve the documentation and fortify the contract with
GPIO providers.
Reported-by: José Guilherme de Castro Rodrigues <joseguilhermebh@hotmail.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Kent Gibson <warthog618@gmail.com>
There are no external users for the irq domain helpers so unexport them
and remove the prototypes from the driver header.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Commit 9e4555d1e5 ("gpiolib: add support for scope-based management to
gpio_device") sought to add scope-based gpio_device refcounting, but
erroneously forgot a negation of IS_ERR_OR_NULL().
As a result, gpio_device_put() is not called if the gpio_device pointer
is valid (meaning the ref is leaked), but only called if the pointer is
NULL or an ERR_PTR().
While at it drop a superfluous trailing semicolon.
Fixes: 9e4555d1e5 ("gpiolib: add support for scope-based management to gpio_device")
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Remove second `#include <linux/err.h>`. Remove `#include <asm/errno.h>`
too as it's included by `err.h`.
Signed-off-by: Wang Jinchao <wangjinchao@xfusion.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
- provide a safer alternative to gpiochip_is_requested()
- convert all existing users
- remove gpiochip_is_requested()
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Merge tag 'gpio-remove-gpiochip_is_requested-for-v6.8-rc1' into gpio/for-next
gpio: remove gpiochip_is_requested()
- provide a safer alternative to gpiochip_is_requested()
- convert all existing users
- remove gpiochip_is_requested()
We have no external users of gpiochip_is_requested(). Let's remove it
and replace its internal calls with direct testing of the REQUESTED flag.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Rework for_each_requested_gpio_in_range() to use the new helper to
retrieve a dynamically allocated copy of the descriptor label and free
it at the end of each iteration. We need to leverage the CLASS()'
destructor to make sure that the label is freed even when breaking out
of the loop.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
gpiochip_is_requested() not only has a misleading name but it returns
a pointer to a string that is freed when the descriptor is released.
Provide a new helper meant to replace it, which returns a copy of the
label string instead.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Provide a getter for the GPIO device label string so that users don't
have to dereference struct gpio_chip directly.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
With all users of gpiochip_find() converted to using gpio_device_find(),
we can now remove this function from the kernel.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Let's start adding getters for the opaque struct gpio_device. Start with
a function allowing to retrieve the base GPIO number.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Accessing struct gpio_chip backing a GPIO device is only allowed for the
actual providers of that chip.
Similarly to how we introduced gpio_device_find() in order to replace
the abused gpiochip_find(), let's introduce a counterpart to
gpiod_to_chip() that returns a reference to the GPIO device owning the
descriptor. This is done in order to later remove gpiod_to_chip()
entirely.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Peter Rosin <peda@axentia.se>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
There are users in the kernel who need to retrieve the address of the
struct device backing the GPIO device. Currently they needlessly poke in
the internals of GPIOLIB. Add a dedicated getter function.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Peter Rosin <peda@axentia.se>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
One of the ways of looking up GPIO devices is using their fwnode.
Provide a helper for that to avoid every user implementing their
own matching function.
Reviewed-by: Dipen Patel <dipenp@nvidia.com>
Tested-by: Dipen Patel <dipenp@nvidia.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20231010151709.4104747-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
The process of converting all unauthorized users of struct gpio_chip to
using dedicated struct gpio_device function will be long so in the
meantime we must provide a way of retrieving the pointer to struct
gpio_chip from a GPIO device.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Getting the GPIO descriptor directly from the gpio_chip struct is
dangerous as we don't take the reference to the underlying GPIO device.
In order to start working towards removing gpiochip_get_desc(), let's
provide a safer variant that works with an existing reference to struct
gpio_device.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
By far the most common way of looking up GPIO devices is using their
label. Provide a helpers for that to avoid every user implementing their
own matching function.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
gpiochip_find() is wrong and its kernel doc is misleading as the
function doesn't return a reference to the gpio_chip but just a raw
pointer. The chip itself is not guaranteed to stay alive, in fact it can
be deleted at any point. Also: other than GPIO drivers themselves,
nobody else has any business accessing gpio_chip structs.
Provide a new gpio_device_find() function that returns a real reference
to the opaque gpio_device structure that is guaranteed to stay alive for
as long as there are active users of it.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
As the few users that need to get the reference to the GPIO device often
release it right after inspecting its properties, let's add support for
the automatic reference release to struct gpio_device.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
In order to start migrating away from accessing struct gpio_chip by
users other than their owners, let's first make the reference management
functions for the opaque struct gpio_device public in the driver.h
header.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
It makes sense for a GPIO driver to want to get its own descriptor
without requesting it. After all, the driver knows that it'll still be
valid. Let's move this helper to linux/gpio/driver.h.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
'extern' doesn't do anything for function declarations. Remove it.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Core GPIO library:
- remove unused symbols
- don't spam the kernel log with messages about hogs
- remove old sysfs API cruft
- improve handling of GPIO masks
New drivers
- add a driver for the BlueField-3 GPIO controller
- add GPIO support for the TPS65219 PMIC
Driver improvements:
- extend the gpio-aggregator driver to support ramp-up/ramp-down delay
- remove unnecessary CONFIG_OF guards from gpio-aggregator
- readability improvements in gpio-tangier
- switch i2c drivers back to using probe() now that it's been converted in
the i2c subsystem to not taking the id parameter
- remove unused inclusions of of_gpio.h in several drivers
- make pm ops static in gpio-davinci and fix a comment
- use more devres in drivers to shrink and simplify the code
- add missing include in gpio-sa1100
- add HAS_IOPORT KConfig dependency where needed
- add permissions checks before accessing pins in gpio-tegra186
- convert the gpio-zynq driver to using immutable irqchips
- preserve output settings set by the bootloader in gpio-mpc8xxx
Selftests:
- tweak the variable naming in script tests
Device tree updates:
- convert gpio-mmio and gpio-stmpe to YAML
- add parsing of GPIO hogs to gpio-vf610
- add bindings for the Cirrus EP93xx GPIO controller
- add gpio-line-names property to the gpio-pca9570 bindings
- extend the binding for x-powers,axp209 with another block
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Merge tag 'gpio-updates-for-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio updates from Bartosz Golaszewski:
"We have two new drivers, some improvements to the core code, lots of
different updates to existing GPIO drivers and some dt-bindings on
top.
There's nothing controversial in here and almost everything has been
in next for more than a week (95% a lot longer than this). The only
thing that has spent less time in next is a new driver so no risk of
regressions.
The single merge pulls in changes that remove all usage of global GPIO
numbers from arch/arm/mach-omap.
Core GPIO library:
- remove unused symbols
- don't spam the kernel log with messages about hogs
- remove old sysfs API cruft
- improve handling of GPIO masks
New drivers:
- add a driver for the BlueField-3 GPIO controller
- add GPIO support for the TPS65219 PMIC
Driver improvements:
- extend the gpio-aggregator driver to support ramp-up/ramp-down
delay
- remove unnecessary CONFIG_OF guards from gpio-aggregator
- readability improvements in gpio-tangier
- switch i2c drivers back to using probe() now that it's been
converted in the i2c subsystem to not taking the id parameter
- remove unused inclusions of of_gpio.h in several drivers
- make pm ops static in gpio-davinci and fix a comment
- use more devres in drivers to shrink and simplify the code
- add missing include in gpio-sa1100
- add HAS_IOPORT KConfig dependency where needed
- add permissions checks before accessing pins in gpio-tegra186
- convert the gpio-zynq driver to using immutable irqchips
- preserve output settings set by the bootloader in gpio-mpc8xxx
Selftests:
- tweak the variable naming in script tests
Device tree updates:
- convert gpio-mmio and gpio-stmpe to YAML
- add parsing of GPIO hogs to gpio-vf610
- add bindings for the Cirrus EP93xx GPIO controller
- add gpio-line-names property to the gpio-pca9570 bindings
- extend the binding for x-powers,axp209 with another block"
* tag 'gpio-updates-for-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (58 commits)
of: unittest: drop assertions for GPIO hog messages
gpiolib: Drop unused domain_ops memeber of GPIO IRQ chip
gpio: synq: remove unused zynq_gpio_irq_reqres/zynq_gpio_irq_relres
dt-bindings: gpio: gpio-vf610: Add parsing of hogs
gpio: lpc18xx: Remove unused of_gpio.h inclusion
gpio: xra1403: Remove unused of_gpio.h inclusion
gpio: mpc8xxx: Remove unused of_gpio.h inclusion
dt-bindings: gpio: Add Cirrus EP93xx
gpio: mpc8xxx: latch GPIOs state on module load when configured as output
selftests: gpio: gpio-sim: Use same variable name for sysfs pathname
gpio: mlxbf3: Add gpio driver support
gpio: delay: Remove duplicative functionality
gpio: aggregator: Set up a parser of delay line parameters
gpio: aggregator: Support delay for setting up individual GPIOs
gpio: aggregator: Remove CONFIG_OF and of_match_ptr() protections
dt-bindings: gpio: pca9570: add gpio-line-names property
gpiolib: remove unused gpio_cansleep()
gpio: tps65219: add GPIO support for TPS65219 PMIC
gpio: zynq: fix zynqmp_gpio not an immutable chip warning
gpio: davinci: make davinci_gpio_dev_pm_ops static
...
It seems there is no driver that requires custom IRQ chip
domain options. Drop the member and respective code.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Up until commit 6a45b0e258 ("gpiolib: Introduce
gpiochip_irqchip_add_domain()") all irq_domains were allocated
by gpiolib itself and thus gpiolib also takes care of freeing it.
With gpiochip_irqchip_add_domain() a user of gpiolib can associate an
irq_domain with the gpio_chip. This irq_domain is not managed by
gpiolib and therefore must not be freed by gpiolib.
Fixes: 6a45b0e258 ("gpiolib: Introduce gpiochip_irqchip_add_domain()")
Reported-by: Jiawen Wu <jiawenwu@trustnetic.com>
Signed-off-by: Michael Walle <mwalle@kernel.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
There is a few things done:
- include only the headers we are direct user of
- when pointer is in use, provide a forward declaration
- add missing headers
- group generic headers and subsystem headers
- sort each group alphabetically
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
There is no struct device_node pointers anywhere in the header,
drop unused forward declaration.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
- Add PINCTRL_PINFUNCTION() macro and use it in several
drivers.
New drivers:
- New driver for the StarFive JH7110 SoC "sys" and "aon"
(always-on) pin controllers. (RISC-V.)
- New subdriver for the Qualcomm QDU1000/QRU1000 SoC pin
controller.
- New subdrivers for the Qualcomm SM8550 SoC and LPASS
pin controllers.
- New subdriver for the Qualcomm SA8775P SoC pin controller.
- New subdriver for the Qualcomm IPQ5332 SoC pin controller.
- New (trivial) support for Qualcomm PM8550 and PMR735D PMIC
pin control.
- New subdriver for the Mediatek MT7981 SoC pin controller.
Improvements:
- Several cleanups and refactorings to the Intel drivers.
- Add 4KOhm bias support to the Intel driver.
- Use the NOIRQ_SYSTEM_SLEEP_PM_OPS for the AT91 driver.
- Support general purpose clocks in the Qualcomm MSM8226 SoC.
- Several conversions to use the new I2C .probe_new() call.
- Massive clean-up of the Qualcomm Device Tree YAML schemas.
- Add VIN[45] pins, groups and functions to the Renesas
r8a77950 SoC driver.
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Merge tag 'pinctrl-v6.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control updates from Linus Walleij:
"Nothing special, notably a lot of new Qualcomm hardware is supported,
a RISC-V reference SoC and then some cleanups both in code and device
tree bindings.
Core changes:
- Add PINCTRL_PINFUNCTION() macro and use it in several drivers
New drivers:
- New driver for the StarFive JH7110 SoC "sys" and "aon" (always-on)
pin controllers. (RISC-V.)
- New subdriver for the Qualcomm QDU1000/QRU1000 SoC pin controller
- New subdrivers for the Qualcomm SM8550 SoC and LPASS pin
controllers
- New subdriver for the Qualcomm SA8775P SoC pin controller
- New subdriver for the Qualcomm IPQ5332 SoC pin controller
- New (trivial) support for Qualcomm PM8550 and PMR735D PMIC pin
control
- New subdriver for the Mediatek MT7981 SoC pin controller
Improvements:
- Several cleanups and refactorings to the Intel drivers
- Add 4KOhm bias support to the Intel driver
- Use the NOIRQ_SYSTEM_SLEEP_PM_OPS for the AT91 driver
- Support general purpose clocks in the Qualcomm MSM8226 SoC
- Several conversions to use the new I2C .probe_new() call
- Massive clean-up of the Qualcomm Device Tree YAML schemas
- Add VIN[45] pins, groups and functions to the Renesas r8a77950 SoC
driver"
* tag 'pinctrl-v6.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (118 commits)
pinctrl: qcom: Add support for i2c specific pull feature
pinctrl: starfive: Add StarFive JH7110 aon controller driver
pinctrl: starfive: Add StarFive JH7110 sys controller driver
dt-bindings: pinctrl: Add StarFive JH7110 aon pinctrl
dt-bindings: pinctrl: Add StarFive JH7110 sys pinctrl
pinctrl: add mt7981 pinctrl driver
dt-bindings: pinctrl: add bindings for MT7981 SoC
dt-bindings: pinctrl: rockchip,pinctrl: mark gpio sub nodes of pinctrl as deprecated
pinctrl: qcom: Introduce IPQ5332 TLMM driver
dt-bindings: pinctrl: qcom: add IPQ5332 pinctrl
dt-bindings: pinctrl: qcom: lpass-lpi: correct GPIO name pattern
pinctrl: qcom: pinctrl-sm8550-lpass-lpi: add SM8550 LPASS
dt-bindings: pinctrl: qcom,sm8550-lpass-lpi-pinctrl: add SM8550 LPASS
pinctrl: at91: use devm_kasprintf() to avoid potential leaks
dt-bindings: pinctrl: qcom: correct gpio-ranges in examples
dt-bindings: pinctrl: qcom,msm8994: correct number of GPIOs
dt-bindings: pinctrl: qcom,sdx55: correct GPIO name pattern
dt-bindings: pinctrl: qcom,msm8953: correct GPIO name pattern
dt-bindings: pinctrl: qcom,sm6375: correct GPIO name pattern and example
dt-bindings: pinctrl: qcom,msm8909: correct GPIO name pattern and example
...
Replace mentioning of legacy API by the latest one.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
All new drivers should use fwnode and / or parent to provide the
necessary information to the GPIO library.
Cc: Thierry Reding <treding@nvidia.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
This reverts commit 3550bba25d.
No users for this one, revert it for good.
The ->add_pin_ranges() can be used instead.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Stefan Wahren <stefan.wahren@i2se.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://lore.kernel.org/r/20230113215352.44272-5-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Core changes:
- Minor but nice and important documentation clean-ups.
New drivers:
- New subdriver for the Qualcomm SDM670 SoC.
- New subdriver for the Intel Moorefield SoC.
- New trivial support for the NXP Freescale i.MXRT1170 SoC.
Other changes and improvements
- A major clean-up of the Qualcomm pin control device tree bindings
by Krzysztof.
- A major header clean-up by Andy.
- Some immutable irqchip clean-up for the Actions Semiconductor
and Nuvoton drivers.
- GPIO helpers for The Cypress cy8c95x0 driver.
- Bias handling in the Mediatek MT7986 driver.
- Remove the unused pins-are-numbered concept that never flew.
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Merge tag 'pinctrl-v6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control updates from Linus Walleij:
"The two large chunks is the header clean-up from Andy and the Qualcomm
DT bindings clean-up from Krzysztof. Each which could give rise to
conflicts, but I haven't seen any.
The YAML conversions happening around the device tree is the biggest
item in the series and is the result of Rob Herrings ambition to
autovalidate these trees against strict schemas and it is paying off
in lots of bugs found and ever prettier device trees. Sooner or later
the transition will be complete, Krzysztof is fixing up all of the
Qualcomm stuff, which is pretty voluminous.
Core changes:
- minor but nice and important documentation clean-ups
New drivers:
- subdriver for the Qualcomm SDM670 SoC
- subdriver for the Intel Moorefield SoC
- trivial support for the NXP Freescale i.MXRT1170 SoC
Other changes and improvements
- major clean-up of the Qualcomm pin control device tree bindings by
Krzysztof
- major header clean-up by Andy
- some immutable irqchip clean-up for the Actions Semiconductor and
Nuvoton drivers
- GPIO helpers for The Cypress cy8c95x0 driver
- bias handling in the Mediatek MT7986 driver
- remove the unused pins-are-numbered concept that never flew"
* tag 'pinctrl-v6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (231 commits)
pinctrl: thunderbay: fix possible memory leak in thunderbay_build_functions()
dt-bindings: pinctrl: st,stm32: Deprecate pins-are-numbered
dt-bindings: pinctrl: mediatek,mt65xx: Deprecate pins-are-numbered
pinctrl: stm32: Remove check for pins-are-numbered
pinctrl: mediatek: common: Remove check for pins-are-numbered
pinctrl: qcom: remove duplicate included header files
pinctrl: sunxi: d1: Add CAN bus pinmuxes
pinctrl: loongson2: Fix some const correctness
pinctrl: pinconf-generic: add missing of_node_put()
pinctrl: intel: Enumerate PWM device when community has a capability
pwm: lpss: Rename pwm_lpss_probe() --> devm_pwm_lpss_probe()
pwm: lpss: Allow other drivers to enable PWM LPSS
pwm: lpss: Include headers we are the direct user of
pwm: lpss: Rename MAX_PWMS --> LPSS_MAX_PWMS
pwm: Add a stub for devm_pwmchip_add()
pinctrl: k210: call of_node_put()
pinctrl: starfive: Use existing variable gpio
dt-bindings: pinctrl: semtech,sx150xq: fix match patterns for 16 GPIOs matching
pinconf-generic: fix style issues in pin_config_param doc
pinctrl: pinctrl-loongson2: fix Kconfig dependency
...
Adjust to reality and remove another layer of pointless Kconfig
indirection. CONFIG_GENERIC_MSI_IRQ is good enough to serve
all purposes.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20221111122014.524842979@linutronix.de
There is a few things done:
- include only the headers we are direct user of
- when pointer is in use, provide a forward declaration
- add missing headers
- group generic headers and subsystem headers
- sort each group alphabetically
While at it, fix some awkward indentations.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
core:
- Fix a few inconsistencies between UP and SMP vs. interrupt affinities
- Small updates and cleanups all over the place
drivers:
- New driver for the LoongArch interrupt controller
- New driver for the Renesas RZ/G2L interrupt controller
- Hotpath optimization for SiFive PLIC
- Workaround for broken PLIC edge triggered interrupts
- Simall cleanups and improvements as usual
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Merge tag 'irq-core-2022-08-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq updates from Thomas Gleixner:
"Updates for interrupt core and drivers:
Core:
- Fix a few inconsistencies between UP and SMP vs interrupt
affinities
- Small updates and cleanups all over the place
New drivers:
- LoongArch interrupt controller
- Renesas RZ/G2L interrupt controller
Updates:
- Hotpath optimization for SiFive PLIC
- Workaround for broken PLIC edge triggered interrupts
- Simall cleanups and improvements as usual"
* tag 'irq-core-2022-08-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (52 commits)
irqchip/mmp: Declare init functions in common header file
irqchip/mips-gic: Check the return value of ioremap() in gic_of_init()
genirq: Use for_each_action_of_desc in actions_show()
irqchip / ACPI: Introduce ACPI_IRQ_MODEL_LPIC for LoongArch
irqchip: Add LoongArch CPU interrupt controller support
irqchip: Add Loongson Extended I/O interrupt controller support
irqchip/loongson-liointc: Add ACPI init support
irqchip/loongson-pch-msi: Add ACPI init support
irqchip/loongson-pch-pic: Add ACPI init support
irqchip: Add Loongson PCH LPC controller support
LoongArch: Prepare to support multiple pch-pic and pch-msi irqdomain
LoongArch: Use ACPI_GENERIC_GSI for gsi handling
genirq/generic_chip: Export irq_unmap_generic_chip
ACPI: irq: Allow acpi_gsi_to_irq() to have an arch-specific fallback
APCI: irq: Add support for multiple GSI domains
LoongArch: Provisionally add ACPICA data structures
irqdomain: Use hwirq_max instead of revmap_size for NOMAP domains
irqdomain: Report irq number for NOMAP domains
irqchip/gic-v3: Fix comment typo
dt-bindings: interrupt-controller: renesas,rzg2l-irqc: Document RZ/V2L SoC
...
The gpiolib is unique in the way it uses intermediate fwspecs
when feeding an interrupt specifier to the parent domain, as it
relies on the populate_parent_alloc_arg() callback to perform
a dynamic allocation.
This is pretty inefficient (we free the structure almost immediately),
and the only reason this isn't a stack allocation is that our
ThunderX friend uses MSIs rather than a FW-constructed structure.
Let's solve it by providing a new type composed of the union
of a struct irq_fwspec and a msi_info_t, which satisfies both
requirements. This allows us to use a stack allocation, and we
can move the handful of users to this new scheme.
Also perform some additional cleanup, such as getting rid of the
stub versions of the irq_domain_translate_*cell helpers, which
are never used when CONFIG_IRQ_DOMAIN_HIERARCHY isn't selected.
Tested on a Tegra186.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Cc: Daniel Palmer <daniel@thingy.jp>
Cc: Romain Perier <romain.perier@gmail.com>
Cc: Bartosz Golaszewski <brgl@bgdev.pl>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Jonathan Hunter <jonathanh@nvidia.com>
Cc: Robert Richter <rric@kernel.org>
Cc: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
Cc: Andy Gross <agross@kernel.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Bartosz Golaszewski <brgl@bgdev.pl>
Link: https://lore.kernel.org/r/20220707182314.66610-2-prabhakar.mahadev-lad.rj@bp.renesas.com
Commit 48ec13d36d ("gpio: Properly document parent data union")
is supposed to have fixed a warning from "make htmldocs" regarding
kernel-doc comments to union members. However, the same warning
still remains [1].
Fix the issue by following the example found in section "Nested
structs/unions" of Documentation/doc-guide/kernel-doc.rst.
Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Fixes: 48ec13d36d ("gpio: Properly document parent data union")
Link: https://lore.kernel.org/r/20220606093302.21febee3@canb.auug.org.au/ [1]
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Bartosz Golaszewski <brgl@bgdev.pl>
Cc: Joey Gouly <joey.gouly@arm.com>
Cc: Marc Zyngier <maz@kernel.org>
Tested-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reviewed-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
This contains the new HTE subsystem that has been in the works for a
couple of months now. The infrastructure provided allows for drivers to
register as hardware timestamp providers, while consumers will be able
to request events that they are interested in (such as GPIOs and IRQs)
to be timestamped by the hardware providers.
Note that this currently supports only one provider, but there seems to
be enough interest in this functionality and we expect to see more
drivers added once this is merged.
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Merge tag 'hte/for-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux
Pull hardware timestamping subsystem from Thierry Reding:
"This contains the new HTE (hardware timestamping engine) subsystem
that has been in the works for a couple of months now.
The infrastructure provided allows for drivers to register as hardware
timestamp providers, while consumers will be able to request events
that they are interested in (such as GPIOs and IRQs) to be timestamped
by the hardware providers.
Note that this currently supports only one provider, but there seems
to be enough interest in this functionality and we expect to see more
drivers added once this is merged"
[ Linus Walleij mentions the Intel PMC in the Elkhart and Tiger Lake
platforms as another future timestamp provider ]
* tag 'hte/for-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
dt-bindings: timestamp: Correct id path
dt-bindings: Renamed hte directory to timestamp
hte: Uninitialized variable in hte_ts_get()
hte: Fix off by one in hte_push_ts_ns()
hte: Fix possible use-after-free in tegra_hte_test_remove()
hte: Remove unused including <linux/version.h>
MAINTAINERS: Add HTE Subsystem
hte: Add Tegra HTE test driver
tools: gpio: Add new hardware clock type
gpiolib: cdev: Add hardware timestamp clock type
gpio: tegra186: Add HTE support
gpiolib: Add HTE support
dt-bindings: Add HTE bindings
hte: Add Tegra194 HTE kernel provider
drivers: Add hardware timestamp engine (HTE) subsystem
Documentation: Add HTE subsystem guide
Core changes:
- New helpers from Andy such as for_each_gpiochip_node() affecting both
GPIO and pin control, improving a bunch of drivers in the process.
- Pulled in Marc Zyngiers work to make IRQ chips immutable, and started
to apply fixups on top.
New drivers:
- New driver for Marvell MVEBU 98DX2530.
- New driver for Mediatek MT8195.
- Support Qualcomm PMX65 and PM6125.
- New driver for Qualcomm SC7280 LPASS pin control.
- New driver for Rockchip RK3588.
- New driver for NXP Freescale i.MXRT1170.
- New driver for Mediatek MT6795 Helio X10.
Improvements:
- Several Aspeed G6 cleanups and non-critical fixes.
- Thorought refactoring of some of the ever improving Renesas drivers.
- Clean up Mediatek MT8192 bindings a bit.
- PWM output and clock monitoring in the Ocelot LAN966x driver.
- Thorough refactoring and cleanup of the Ralink drivers such as
RT2880, RT3883, RT305X, MT7620, MT7621, MT7628 splitting these into proper
sub-drivers.
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Merge tag 'pinctrl-v5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control updates from Linus Walleij:
"Pretty big this time. Mostly due to (nice) Renesas refactorings.
Core changes:
- New helpers from Andy such as for_each_gpiochip_node() affecting
both GPIO and pin control, improving a bunch of drivers in the
process.
- Pulled in Marc Zyngiers work to make IRQ chips immutable, and
started to apply fixups on top.
New drivers:
- New driver for Marvell MVEBU 98DX2530.
- New driver for Mediatek MT8195.
- Support Qualcomm PMX65 and PM6125.
- New driver for Qualcomm SC7280 LPASS pin control.
- New driver for Rockchip RK3588.
- New driver for NXP Freescale i.MXRT1170.
- New driver for Mediatek MT6795 Helio X10.
Improvements:
- Several Aspeed G6 cleanups and non-critical fixes.
- Thorought refactoring of some of the ever improving Renesas
drivers.
- Clean up Mediatek MT8192 bindings a bit.
- PWM output and clock monitoring in the Ocelot LAN966x driver.
- Thorough refactoring and cleanup of the Ralink drivers such as
RT2880, RT3883, RT305X, MT7620, MT7621, MT7628 splitting these into
proper sub-drivers"
* tag 'pinctrl-v5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (161 commits)
pinctrl: apple: Use a raw spinlock for the regmap
pinctrl: berlin: bg4ct: Use devm_platform_*ioremap_resource() APIs
pinctrl: intel: Fix kernel doc format, i.e. add return sections
dt-bindings: pinctrl: qcom: Drop 'maxItems' on 'wakeup-parent'
pinctrl: starfive: Make the irqchip immutable
pinctrl: mediatek: Add pinctrl driver for MT6795 Helio X10
dt-bindings: pinctrl: Add MediaTek MT6795 pinctrl bindings
pinctrl: freescale: Add i.MXRT1170 pinctrl driver support
dt-bindings: pinctrl: add i.MXRT1170 pinctrl Documentation
dt-bindings: pinctrl: rockchip: increase max amount of device functions
dt-bindings: pinctrl: qcom,pmic-gpio: add 'gpio-reserved-ranges'
dt-bindings: pinctrl: qcom,pmic-gpio: add 'input-disable'
dt-bindings: pinctrl: qcom,pmic-gpio: describe gpio-line-names
dt-bindings: pinctrl: qcom,pmic-gpio: fix matching pin config
dt-bindings: pinctrl: qcom,pmic-gpio: document PM8150L and PMM8155AU
pinctrl: qcom: spmi-gpio: Add pm6125 compatible
dt-bindings: pinctrl: qcom-pmic-gpio: Add pm6125 compatible
pinctrl: intel: Drop unused irqchip member in struct intel_pinctrl
pinctrl: intel: make irq_chip immutable
pinctrl: cherryview: Use GPIO chip pointer in chv_gpio_irq_mask_unmask()
...
- use ioread()/iowrite() interfaces instead of raw inb()/outb() in drivers
- make irqchips immutable due to the new warning popping up when drivers try to
modify the irqchip structures
- add new compatibles to dt-bindings for realtek-otto, renesas-rcar and pca95xx
- add support for new models to gpio-rcar, gpio-pca953x & gpio-realtek-otto
- allow parsing of GPIO hogs represented as children nodes of gpio-uniphier
- define a set of common GPIO consumer strings in dt-bindings
- shrink code in gpio-ml-ioh by using more devres interfaces
- pass arguments to devm_kcalloc() in correct order in gpio-sim
- add new helpers for iterating over GPIO firmware nodes and descriptors to
gpiolib core and use it in several drivers
- drop unused syscon_regmap_lookup_by_compatible() function
- correct format specifiers and signedness of variables in GPIO ACPI
- drop unneeded error checks in gpio-ftgpio
- stop using the deprecated of_gpio.h header in gpio-zevio
- drop platform_data support in gpio-max732x
- simplify Kconfig dependencies in gpio-vf610
- use raw spinlocks where needed to make PREEMPT_RT happy
- fix return values in board files using gpio-pcf857x
- convert more drivers to using fwnode instead of of_node
- minor fixes and improvements in gpiolib core
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Merge tag 'gpio-updates-for-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio updates from Bartosz Golaszewski:
"We have lots of small changes all over the place, but no huge reworks
or new drivers:
- use ioread()/iowrite() interfaces instead of raw inb()/outb() in
drivers
- make irqchips immutable due to the new warning popping up when
drivers try to modify the irqchip structures
- add new compatibles to dt-bindings for realtek-otto, renesas-rcar
and pca95xx
- add support for new models to gpio-rcar, gpio-pca953x &
gpio-realtek-otto
- allow parsing of GPIO hogs represented as children nodes of
gpio-uniphier
- define a set of common GPIO consumer strings in dt-bindings
- shrink code in gpio-ml-ioh by using more devres interfaces
- pass arguments to devm_kcalloc() in correct order in gpio-sim
- add new helpers for iterating over GPIO firmware nodes and
descriptors to gpiolib core and use it in several drivers
- drop unused syscon_regmap_lookup_by_compatible() function
- correct format specifiers and signedness of variables in GPIO ACPI
- drop unneeded error checks in gpio-ftgpio
- stop using the deprecated of_gpio.h header in gpio-zevio
- drop platform_data support in gpio-max732x
- simplify Kconfig dependencies in gpio-vf610
- use raw spinlocks where needed to make PREEMPT_RT happy
- fix return values in board files using gpio-pcf857x
- convert more drivers to using fwnode instead of of_node
- minor fixes and improvements in gpiolib core"
* tag 'gpio-updates-for-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (55 commits)
gpio: sifive: Make the irqchip immutable
gpio: rcar: Make the irqchip immutable
gpio: pcf857x: Make the irqchip immutable
gpio: pca953x: Make the irqchip immutable
gpio: dwapb: Make the irqchip immutable
gpio: sim: Use correct order for the parameters of devm_kcalloc()
gpio: ml-ioh: Convert to use managed functions pcim* and devm_*
gpio: ftgpio: Remove unneeded ERROR check before clk_disable_unprepare
gpio: ws16c48: Utilize iomap interface
gpio: gpio-mm: Utilize iomap interface
gpio: 104-idio-16: Utilize iomap interface
gpio: 104-idi-48: Utilize iomap interface
gpio: 104-dio-48e: Utilize iomap interface
gpio: zevio: drop of_gpio.h header
gpio: max77620: Make the irqchip immutable
dt-bindings: gpio: pca95xx: add entry for pca6408
gpio: pca953xx: Add support for pca6408
gpio: max732x: Drop unused support for irq and setup code via platform data
gpio: vf610: drop the SOC_VF610 dependency for GPIO_VF610
gpio: syscon: Remove usage of syscon_regmap_lookup_by_compatible
...
