Hans de GoedeandGreg Kroah-Hartman ed6fa21f68 gpiolib: Extend software-node support to support secondary software-nodes ...

[ Upstream commit c6ccc4dde1 ]

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

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gpio-74x164.c

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gpio-74xx-mmio.c

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gpio-104-dio-48e.c

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gpio-104-idi-48.c

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gpio-104-idio-16.c

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gpio-adnp.c

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gpio-adp5520.c

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gpio-aggregator.c

gpio: aggregator: protect driver attr handlers against module unload

2025-03-13 12:58:24 +01:00

gpio-altera-a10sr.c

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gpio-altera.c

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gpio-amd8111.c

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gpio-amd-fch.c

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gpio-amdpt.c

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gpio-arizona.c

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gpio-aspeed-sgpio.c

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gpio-aspeed.c

gpio: aspeed: Use devm_clk api to manage clock source

2024-10-17 15:24:26 +02:00

gpio-ath79.c

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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

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gpio-bd71815.c

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gpio-bd71828.c

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gpio-brcmstb.c

of: remove internal arguments from of_property_for_each_u32()

2025-02-08 09:51:51 +01:00

gpio-bt8xx.c

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gpio-cadence.c

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gpio-clps711x.c

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gpio-creg-snps.c

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gpio-crystalcove.c

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gpio-cs5535.c

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gpio-da9052.c

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gpio-da9055.c

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gpio-davinci.c

gpio: davinci: fix lazy disable

2024-10-10 11:57:58 +02:00

gpio-dln2.c

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gpio-ds4520.c

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gpio-dwapb.c

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gpio-eic-sprd.c

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gpio-elkhartlake.c

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gpio-em.c

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gpio-en7523.c

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gpio-ep93xx.c

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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

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gpio-ftgpio010.c

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gpio-fxl6408.c

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gpio-ge.c

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gpio-gpio-mm.c

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gpio-grgpio.c

gpio: grgpio: Add NULL check in grgpio_probe

2024-12-14 19:59:41 +01:00

gpio-gw-pld.c

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gpio-hisi.c

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gpio-hlwd.c

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gpio-htc-egpio.c

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gpio-i8255.c

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gpio-i8255.h

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gpio-ich.c

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gpio-idio-16.c

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gpio-idio-16.h

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gpio-idt3243x.c

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gpio-imx-scu.c

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gpio-it87.c

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gpio-ixp4xx.c

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gpio-janz-ttl.c

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gpio-kempld.c

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gpio-latch.c

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gpio-ljca.c

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gpio-logicvc.c

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gpio-loongson1.c

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gpio-loongson-64bit.c

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gpio-loongson.c

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gpio-lp873x.c

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gpio-lp3943.c

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gpio-lp87565.c

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gpio-lpc18xx.c

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gpio-lpc32xx.c

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gpio-madera.c

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gpio-max730x.c

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gpio-max732x.c

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gpio-max3191x.c

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gpio-max7300.c

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gpio-max7301.c

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gpio-max77620.c

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gpio-max77650.c

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gpio-mb86s7x.c

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gpio-mc33880.c

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gpio-menz127.c

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gpio-merrifield.c

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gpio-ml-ioh.c

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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-mlxbf.c

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gpio-mm-lantiq.c

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gpio-mmio.c

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gpio-mockup.c

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gpio-moxtet.c

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gpio-mpc8xxx.c

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gpio-mpc5200.c

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gpio-msc313.c

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gpio-mt7621.c

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gpio-mvebu.c

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gpio-mxc.c

gpio: mxc: remove dead code after switch to DT-only

2025-02-08 09:52:29 +01:00

gpio-mxs.c

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gpio-octeon.c

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gpio-omap.c

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gpio-palmas.c

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gpio-pca953x.c

gpio: pca953x: fix IRQ storm on system wake up

2025-06-04 14:41:51 +02:00

gpio-pca9570.c

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gpio-pcf857x.c

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gpio-pch.c

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gpio-pci-idio-16.c

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gpio-pcie-idio-24.c

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gpio-pisosr.c

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gpio-pl061.c

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gpio-pmic-eic-sprd.c

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gpio-pxa.c

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gpio-raspberrypi-exp.c

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gpio-rc5t583.c

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gpio-rcar.c

gpio: rcar: Fix missing of_node_put() call

2025-03-13 12:58:33 +01:00

gpio-rda.c

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gpio-rdc321x.c

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gpio-realtek-otto.c

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gpio-reg.c

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gpio-regmap.c

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gpio-rockchip.c

gpio: rockchip: fix OF node leak in probe()

2024-09-12 11:11:44 +02:00

gpio-sa1100.c

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gpio-sama5d2-piobu.c

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gpio-sch311x.c

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gpio-sch.c

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gpio-sifive.c

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gpio-sim.c

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gpio-siox.c

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gpio-sl28cpld.c

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gpio-sodaville.c

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gpio-spear-spics.c

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gpio-sprd.c

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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

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gpio-syscon.c

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gpio-tangier.c

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gpio-tangier.h

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gpio-tb10x.c

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gpio-tc3589x.c

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gpio-tegra186.c

gpio: tegra186: fix resource handling in ACPI probe path

2025-04-25 10:45:34 +02:00

gpio-tegra.c

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gpio-thunderx.c

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gpio-timberdale.c

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gpio-tn48m.c

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gpio-tpic2810.c

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gpio-tps6586x.c

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gpio-tps65086.c

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gpio-tps65218.c

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gpio-tps65219.c

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gpio-tps65910.c

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gpio-tps65912.c

gpio: tps65912: check the return value of regmap_update_bits()

2025-08-28 16:28:17 +02:00

gpio-tps68470.c

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gpio-tqmx86.c

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gpio-ts4800.c

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gpio-ts4900.c

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gpio-ts5500.c

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gpio-twl4030.c

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gpio-twl6040.c

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gpio-uniphier.c

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gpio-vf610.c

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gpio-viperboard.c

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gpio-virtio.c

gpio: virtio: Fix config space reading.

2025-08-28 16:28:10 +02:00

gpio-visconti.c

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gpio-vx855.c

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gpio-wcd934x.c

gpio: wcd934x: check the return value of regmap_update_bits()

2025-08-28 16:28:16 +02:00

gpio-wcove.c

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gpio-winbond.c

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gpio-wm831x.c

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gpio-wm8350.c

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gpio-wm8994.c

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gpio-ws16c48.c

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gpio-xgene-sb.c

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gpio-xgene.c

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gpio-xgs-iproc.c

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gpio-xilinx.c

gpio: xilinx: Convert gpio_lock to raw spinlock

2025-01-23 17:21:16 +01:00

gpio-xlp.c

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gpio-xra1403.c

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gpio-xtensa.c

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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

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gpiolib-cdev.c

gpiolib: cdev: Ignore reconfiguration without direction

2024-09-30 16:25:14 +02:00

gpiolib-cdev.h

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gpiolib-devres.c

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gpiolib-legacy.c

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gpiolib-of.c

gpiolib: of: Add polarity quirk for s5m8767

2025-06-27 11:08:52 +01:00

gpiolib-of.h

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gpiolib-swnode.c

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gpiolib-swnode.h

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gpiolib-sysfs.c

gpio: sysfs: extend the critical section for unregistering sysfs devices

2024-08-29 17:33:34 +02:00

gpiolib-sysfs.h

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gpiolib.c

gpiolib: Extend software-node support to support secondary software-nodes

2025-10-02 13:42:54 +02:00

gpiolib.h

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Kconfig

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Makefile

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TODO

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