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linux-yocto/drivers/gpio
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Hans de Goede ed6fa21f68 gpiolib: Extend software-node support to support secondary software-nodes 
[ Upstream commit c6ccc4dde17676dfe617b9a37bd9ba19a8fc87ee ]

When a software-node gets added to a device which already has another
fwnode as primary node it will become the secondary fwnode for that
device.

Currently if a software-node with GPIO properties ends up as the secondary
fwnode then gpiod_find_by_fwnode() will fail to find the GPIOs.

Add a new gpiod_fwnode_lookup() helper which falls back to calling
gpiod_find_by_fwnode() with the secondary fwnode if the GPIO was not
found in the primary fwnode.

Fixes: e7f9ff5dc9 ("gpiolib: add support for software nodes")
Cc: stable@vger.kernel.org
Signed-off-by: Hans de Goede <hansg@kernel.org>
Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/20250920200955.20403-1-hansg@kernel.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
[ Adjust context ]
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-10-02 13:42:54 +02:00
..
gpio-74x164.c gpio: 74x164: Enable output pins after registers are reset 2024-03-06 14:48:43 +00:00
gpio-74xx-mmio.c gpio: 74xx-mmio: remove unneeded platform_set_drvdata() call 2023-07-29 16:03:17 +02:00
gpio-104-dio-48e.c gpio: 104-dio-48e: Add Counter/Timer support 2023-07-27 09:37:33 +02:00
gpio-104-idi-48.c gpio: 104-idi-48: Enable use_raw_spinlock for idi48_regmap_config 2023-04-11 21:08:31 +02:00
gpio-104-idio-16.c gpio: 104-idio-16: Migrate to the regmap API 2023-08-11 14:23:29 +02:00
gpio-adnp.c gpio: Switch i2c drivers back to use .probe() 2023-05-23 10:09:11 +02:00
gpio-adp5520.c
gpio-aggregator.c gpio: aggregator: protect driver attr handlers against module unload 2025-03-13 12:58:24 +01:00
gpio-altera-a10sr.c gpio: altera-a10sr: remove redundant of_match_ptr 2023-08-03 15:58:45 +02:00
gpio-altera.c gpio: altera: drop of_match_ptr for ID table 2023-03-15 10:38:03 +01:00
gpio-amd-fch.c
gpio-amd8111.c
gpio-amdpt.c
gpio-arizona.c
gpio-aspeed-sgpio.c gpio: aspeed-sgpio: Convert to immutable irq_chip 2023-03-10 16:17:20 +01:00
gpio-aspeed.c gpio: aspeed: Use devm_clk api to manage clock source 2024-10-17 15:24:26 +02:00
gpio-ath79.c gpio: Explicitly include correct DT includes 2023-07-19 13:24:01 +02:00
gpio-bcm-kona.c gpio: bcm-kona: Add missing newline to dev_err format string 2025-02-21 13:57:08 +01:00
gpio-bd9571mwv.c
gpio-bd71815.c
gpio-bd71828.c
gpio-brcmstb.c of: remove internal arguments from of_property_for_each_u32() 2025-02-08 09:51:51 +01:00
gpio-bt8xx.c
gpio-cadence.c gpio: cadence: Convert to immutable irq_chip 2023-03-10 16:17:24 +01:00
gpio-clps711x.c gpio: clps711x: remove redundant of_match_ptr() 2023-08-03 15:58:46 +02:00
gpio-creg-snps.c gpio: Explicitly include correct DT includes 2023-07-19 13:24:01 +02:00
gpio-crystalcove.c gpio: crystalcove: Use -ENOTSUPP consistently 2024-05-17 12:02:18 +02:00
gpio-cs5535.c
gpio-da9052.c
gpio-da9055.c
gpio-davinci.c gpio: davinci: fix lazy disable 2024-10-10 11:57:58 +02:00
gpio-dln2.c
gpio-ds4520.c gpio: ds4520: Add ADI DS4520 GPIO Expander Support 2023-07-29 15:56:33 +02:00
gpio-dwapb.c gpio: dwapb: mask/unmask IRQ when disable/enale it 2024-01-01 12:42:46 +00:00
gpio-eic-sprd.c gpio: eic-sprd: Clear interrupt after set the interrupt type 2024-01-31 16:19:12 -08:00
gpio-elkhartlake.c gpio: elkhartlake: Introduce Intel Elkhart Lake PSE GPIO 2023-03-06 17:10:46 +02:00
gpio-em.c
gpio-en7523.c
gpio-ep93xx.c gpio: ep93xx: remove unused variable 2023-01-27 14:05:38 +01:00
gpio-exar.c gpio: exar: set value when external pull-up or pull-down is present 2024-12-09 10:32:47 +01:00
gpio-f7188x.c gpio-f7188x: fix chip name and pin count on Nuvoton chip 2023-05-23 10:47:41 +02:00
gpio-ftgpio010.c gpio: ftgpio010: Do not check for 0 return after calling platform_get_irq() 2023-08-03 15:54:11 +02:00
gpio-fxl6408.c gpio: Switch i2c drivers back to use .probe() 2023-05-23 10:09:11 +02:00
gpio-ge.c gpio: ge: Replace GPLv2 boilerplate with SPDX 2023-07-27 09:33:07 +02:00
gpio-gpio-mm.c gpio: gpio-mm: Migrate to regmap API 2023-01-30 15:55:28 +01:00
gpio-grgpio.c gpio: grgpio: Add NULL check in grgpio_probe 2024-12-14 19:59:41 +01:00
gpio-gw-pld.c gpio: Switch i2c drivers back to use .probe() 2023-05-23 10:09:11 +02:00
gpio-hisi.c gpio: hisi: Convert to immutable irq_chip 2023-03-10 16:17:27 +01:00
gpio-hlwd.c gpio: Explicitly include correct DT includes 2023-07-19 13:24:01 +02:00
gpio-htc-egpio.c
gpio-i8255.c gpio: i8255: Remove unused legacy interface 2023-01-30 15:55:28 +01:00
gpio-i8255.h gpio: i8255: Remove unused legacy interface 2023-01-30 15:55:28 +01:00
gpio-ich.c gpio: ich: Use devm_gpiochip_add_data() to simplify remove path 2023-03-09 16:08:39 +02:00
gpio-idio-16.c gpio: idio-16: Remove unused legacy interface 2023-08-11 14:23:32 +02:00
gpio-idio-16.h gpio: idio-16: Remove unused legacy interface 2023-08-11 14:23:32 +02:00
gpio-idt3243x.c gpio: idt3243x: Convert to immutable irq_chip 2023-03-10 16:17:30 +01:00
gpio-imx-scu.c gpio: imx-scu: Use ARRAY_SIZE for array length 2023-08-11 16:20:02 +02:00
gpio-it87.c
gpio-ixp4xx.c gpio: ixp4xx: remove redundant of_match_ptr() 2023-08-03 15:58:48 +02:00
gpio-janz-ttl.c
gpio-kempld.c
gpio-latch.c
gpio-ljca.c gpio: Add support for Intel LJCA USB GPIO driver 2023-04-26 11:40:29 +01:00
gpio-logicvc.c gpio: logicvc: remove unneeded platform_set_drvdata() call 2023-07-29 16:05:50 +02:00
gpio-loongson-64bit.c gpio: loongson: Remove unnecessary .owner 2023-03-10 16:27:28 +01:00
gpio-loongson.c
gpio-loongson1.c gpio: loongson1: Add DT support 2023-03-23 14:31:18 +01:00
gpio-lp873x.c
gpio-lp3943.c gpio: lp3943: remove unneeded platform_set_drvdata() call 2023-08-01 21:14:48 +02:00
gpio-lp87565.c
gpio-lpc18xx.c gpio: lpc18xx: Remove unused of_gpio.h inclusion 2023-06-19 14:45:29 +02:00
gpio-lpc32xx.c gpio: lpc32xx: fix module autoloading 2024-05-17 12:02:19 +02:00
gpio-madera.c
gpio-max730x.c
gpio-max732x.c gpio: max732x: remove redundant CONFIG_OF and of_match_ptr() 2023-08-03 15:56:30 +02:00
gpio-max3191x.c gpio: max3191x: remove redundant of_match_ptr() 2023-08-03 15:58:50 +02:00
gpio-max7300.c gpio: Switch i2c drivers back to use .probe() 2023-05-23 10:09:11 +02:00
gpio-max7301.c
gpio-max77620.c gpio: max77620: remove unneeded platform_set_drvdata() call 2023-08-01 21:15:23 +02:00
gpio-max77650.c
gpio-mb86s7x.c gpio: Explicitly include correct DT includes 2023-07-19 13:24:01 +02:00
gpio-mc33880.c
gpio-menz127.c
gpio-merrifield.c gpio: merrifield: Utilise temporary variable for struct device 2023-03-06 17:10:46 +02:00
gpio-ml-ioh.c
gpio-mlxbf.c
gpio-mlxbf2.c gpio: mlxbf2: use platform_get_irq_optional() 2025-08-28 16:28:10 +02:00
gpio-mlxbf3.c gpio: mlxbf3: use platform_get_irq_optional() 2025-08-28 16:28:10 +02:00
gpio-mm-lantiq.c gpio: mm-lantiq: Fix typo in the newly added header filename 2023-03-23 16:22:18 +02:00
gpio-mmio.c gpio: mmio: do not calculate bgpio_bits via "ngpios" 2024-07-11 12:49:13 +02:00
gpio-mockup.c gpio: mockup: Fix mode of debugfs files 2023-05-17 11:19:32 +02:00
gpio-moxtet.c
gpio-mpc8xxx.c gpio: Explicitly include correct DT includes 2023-07-19 13:24:01 +02:00
gpio-mpc5200.c gpio: Explicitly include correct DT includes 2023-07-19 13:24:01 +02:00
gpio-msc313.c gpio: Explicitly include correct DT includes 2023-07-19 13:24:01 +02:00
gpio-mt7621.c
gpio-mvebu.c gpio: mvebu: fix irq domain leak 2023-07-20 14:38:36 +02:00
gpio-mxc.c gpio: mxc: remove dead code after switch to DT-only 2025-02-08 09:52:29 +01:00
gpio-mxs.c gpio: mxs: fix Wvoid-pointer-to-enum-cast warning 2023-08-11 16:21:46 +02:00
gpio-octeon.c
gpio-omap.c gpio: omap: Remove redundant dev_err_probe() and zero value handle code 2023-07-29 15:50:44 +02:00
gpio-palmas.c gpio: palmas: remove unnecessary call to platform_set_drvdata() 2023-08-01 21:22:38 +02:00
gpio-pca953x.c gpio: pca953x: fix IRQ storm on system wake up 2025-06-04 14:41:51 +02:00
gpio-pca9570.c gpio: pca9570: fix kerneldoc 2023-08-21 10:39:58 +02:00
gpio-pcf857x.c gpio: pcf857x: Extend match data support for OF tables 2023-08-22 11:41:17 +02:00
gpio-pch.c
gpio-pci-idio-16.c gpio: pci-idio-16: Migrate to the regmap API 2023-08-11 14:23:31 +02:00
gpio-pcie-idio-24.c gpio: pcie-idio-24: Migrate to the regmap API 2023-08-11 14:23:33 +02:00
gpio-pisosr.c gpio: pisosr: Use devm_gpiochip_add_data() to simplify remove path 2023-07-20 17:22:10 +02:00
gpio-pl061.c
gpio-pmic-eic-sprd.c gpio: pmic-eic-sprd: Add can_sleep flag for PMIC EIC chip 2023-09-27 09:12:09 +02:00
gpio-pxa.c gpio: pxa: disable pinctrl calls for MMP_GPIO 2023-10-02 09:18:53 +02:00
gpio-raspberrypi-exp.c gpio: raspberrypi-exp: remove redundant of_match_ptr() 2023-08-03 15:58:52 +02:00
gpio-rc5t583.c gpio: rc5t583: remove unneeded call to platform_set_drvdata() 2023-08-01 21:26:48 +02:00
gpio-rcar.c gpio: rcar: Fix missing of_node_put() call 2025-03-13 12:58:33 +01:00
gpio-rda.c gpio: rda: Convert to immutable irq_chip 2023-03-23 14:31:18 +01:00
gpio-rdc321x.c
gpio-realtek-otto.c
gpio-reg.c gpio: reg: Add missing header(s) 2023-03-06 12:33:02 +02:00
gpio-regmap.c gpio: regmap: Add missing header(s) 2023-03-06 12:33:02 +02:00
gpio-rockchip.c gpio: rockchip: fix OF node leak in probe() 2024-09-12 11:11:44 +02:00
gpio-sa1100.c gpio: sa1100: include <mach/generic.h> 2023-05-17 11:56:24 +02:00
gpio-sama5d2-piobu.c gpio: sama5d2-piobu: remove unneeded call to platform_set_drvdata() 2023-08-01 21:27:38 +02:00
gpio-sch.c gpio: sch: remove unneeded call to platform_set_drvdata() 2023-08-03 15:44:46 +02:00
gpio-sch311x.c gpio: sch311x: Use devm_gpiochip_add_data() to simplify remove path 2023-05-17 11:52:14 +02:00
gpio-sifive.c gpio: sifive: Allow building the driver as a module 2023-07-25 12:00:42 +02:00
gpio-sim.c gpio: sim: initialize a managed pointer when declaring it 2023-11-20 11:59:04 +01:00
gpio-siox.c gpio: siox: Convert to immutable irq_chip 2023-03-23 14:31:18 +01:00
gpio-sl28cpld.c
gpio-sodaville.c
gpio-spear-spics.c
gpio-sprd.c gpio: Explicitly include correct DT includes 2023-07-19 13:24:01 +02:00
gpio-stmpe.c gpio: stmpe: Check return value of stmpe_reg_read in stmpe_gpio_irq_sync_unlock 2025-02-21 13:57:18 +01:00
gpio-stp-xway.c gpio: Explicitly include correct DT includes 2023-07-19 13:24:01 +02:00
gpio-syscon.c gpio: syscon: remove unneeded call to platform_set_drvdata() 2023-08-03 15:44:49 +02:00
gpio-tangier.c gpio: tangier: Use correct type for the IRQ chip data 2024-05-02 16:32:33 +02:00
gpio-tangier.h gpio: elkhartlake: Introduce Intel Elkhart Lake PSE GPIO 2023-03-06 17:10:46 +02:00
gpio-tb10x.c gpio: tb10x: Fix an error handling path in tb10x_gpio_probe() 2023-09-20 11:52:14 +02:00
gpio-tc3589x.c
gpio-tegra.c gpio: Explicitly include correct DT includes 2023-07-19 13:24:01 +02:00
gpio-tegra186.c gpio: tegra186: fix resource handling in ACPI probe path 2025-04-25 10:45:34 +02:00
gpio-thunderx.c gpio: thunderx: Convert to immutable irq_chip 2023-03-23 14:31:18 +01:00
gpio-timberdale.c gpio: timberdale: Fix potential deadlock on &tgpio->lock 2023-09-27 08:51:28 +02:00
gpio-tn48m.c
gpio-tpic2810.c gpio: Switch i2c drivers back to use .probe() 2023-05-23 10:09:11 +02:00
gpio-tps6586x.c gpio: Explicitly include correct DT includes 2023-07-19 13:24:01 +02:00
gpio-tps65086.c gpio: tps65086: Use devm_gpiochip_add_data() to simplify remove path 2023-05-17 11:40:40 +02:00
gpio-tps65218.c gpio: tps65218: remove redundant of_match_ptr() 2023-08-03 15:55:34 +02:00
gpio-tps65219.c gpio: tps65219: add GPIO support for TPS65219 PMIC 2023-06-13 14:49:56 +02:00
gpio-tps65910.c gpio: Explicitly include correct DT includes 2023-07-19 13:24:01 +02:00
gpio-tps65912.c gpio: tps65912: check the return value of regmap_update_bits() 2025-08-28 16:28:17 +02:00
gpio-tps68470.c gpio: tps68470: Make tps68470_gpio_output() always set the initial value 2023-07-19 13:22:13 +02:00
gpio-tqmx86.c gpio: tqmx86: fix broken IRQ_TYPE_EDGE_BOTH interrupt type 2024-06-21 14:38:30 +02:00
gpio-ts4800.c gpio: Explicitly include correct DT includes 2023-07-19 13:24:01 +02:00
gpio-ts4900.c gpio: Explicitly include correct DT includes 2023-07-19 13:24:01 +02:00
gpio-ts5500.c
gpio-twl4030.c This removes all usage of global GPIO numbers from 2023-05-31 17:01:34 +02:00
gpio-twl6040.c
gpio-uniphier.c gpio: Explicitly include correct DT includes 2023-07-19 13:24:01 +02:00
gpio-vf610.c gpio: vf610: set value before the direction to avoid a glitch 2023-10-18 11:01:08 +02:00
gpio-viperboard.c
gpio-virtio.c gpio: virtio: Fix config space reading. 2025-08-28 16:28:10 +02:00
gpio-visconti.c gpio: visconti: Convert to immutable irq_chip 2023-03-23 14:31:18 +01:00
gpio-vx855.c gpio: vx855: remove unneeded call to platform_set_drvdata() 2023-08-03 15:48:15 +02:00
gpio-wcd934x.c gpio: wcd934x: check the return value of regmap_update_bits() 2025-08-28 16:28:16 +02:00
gpio-wcove.c gpio: wcove: Use -ENOTSUPP consistently 2024-05-17 12:02:18 +02:00
gpio-winbond.c
gpio-wm831x.c
gpio-wm8350.c
gpio-wm8994.c
gpio-ws16c48.c gpio updates for v6.6 2023-08-29 10:21:56 -07:00
gpio-xgene-sb.c
gpio-xgene.c
gpio-xgs-iproc.c gpio: xgs-iproc: Convert to immutable irq_chip 2023-03-23 14:31:18 +01:00
gpio-xilinx.c gpio: xilinx: Convert gpio_lock to raw spinlock 2025-01-23 17:21:16 +01:00
gpio-xlp.c gpio: xlp: Convert to immutable irq_chip 2023-03-23 14:31:19 +01:00
gpio-xra1403.c gpio: xra1403: remove redundant of_match_ptr() 2023-08-03 15:58:54 +02:00
gpio-xtensa.c
gpio-zevio.c gpio: zevio: Add missed label initialisation 2024-12-09 10:32:31 +01:00
gpio-zynq.c gpio: zynq: Fix wakeup source leaks on device unbind 2025-04-25 10:45:34 +02:00
gpio-zynqmp-modepin.c gpio: modepin: Enable module autoloading 2024-09-12 11:11:44 +02:00
gpiolib-acpi.c gpiolib: acpi: Add a quirk for Acer Nitro ANV14 2025-02-21 13:57:18 +01:00
gpiolib-acpi.h gpiolib: Clean up headers 2023-03-06 12:33:02 +02:00
gpiolib-cdev.c gpiolib: cdev: Ignore reconfiguration without direction 2024-09-30 16:25:14 +02:00
gpiolib-cdev.h
gpiolib-devres.c gpiolib: Pass consumer device through to core in devm_fwnode_gpiod_get_index() 2024-03-26 18:19:34 -04:00
gpiolib-legacy.c gpiolib: Kill unused GPIOF_OPEN_* 2023-06-01 09:52:39 +02:00
gpiolib-of.c gpiolib: of: Add polarity quirk for s5m8767 2025-06-27 11:08:52 +01:00
gpiolib-of.h gpiolib: Clean up headers 2023-03-06 12:33:02 +02:00
gpiolib-swnode.c gpiolib: Clean up headers 2023-03-06 12:33:02 +02:00
gpiolib-swnode.h
gpiolib-sysfs.c gpio: sysfs: extend the critical section for unregistering sysfs devices 2024-08-29 17:33:34 +02:00
gpiolib-sysfs.h
gpiolib.c gpiolib: Extend software-node support to support secondary software-nodes 2025-10-02 13:42:54 +02:00
gpiolib.h gpiolib: Pass consumer device through to core in devm_fwnode_gpiod_get_index() 2024-03-26 18:19:34 -04:00
Kconfig gpio: tqmx86: fix typo in Kconfig label 2024-06-21 14:38:29 +02:00
Makefile gpio: ds4520: Add ADI DS4520 GPIO Expander Support 2023-07-29 15:56:33 +02:00
TODO gpiolib: split of_mm_gpio_chip out of linux/of_gpio.h 2023-03-06 12:33:01 +02:00