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63636d956c
linux/drivers/gpio
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Geert Uytterhoeven 63636d956c gpio: of: Add DT overlay support for GPIO hogs 
As GPIO hogs are configured at GPIO controller initialization time,
adding/removing GPIO hogs in DT overlays does not work.

Add support for GPIO hogs described in DT overlays by registering an OF
reconfiguration notifier, to handle the addition and removal of GPIO hog
subnodes to/from a GPIO controller device node.

Note that when a GPIO hog device node is being removed, its "gpios"
properties is no longer available, so we have to keep track of which
node a hog belongs to, which is done by adding a pointer to the hog's
device node to struct gpio_desc.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20200220130149.26283-3-geert+renesas@glider.be
Reviewed-by: Frank Rowand <frank.rowand@sony.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-02-21 17:10:33 +01:00
..
gpio-74x164.c gpio: 74x164: utilize the for_each_set_clump8 macro 2019-12-04 19:44:12 -08:00
gpio-74xx-mmio.c gpio: Use new GPIO_LINE_DIRECTION 2019-11-07 09:27:48 +01:00
gpio-104-dio-48e.c gpio: 104-dio-48e: utilize for_each_set_clump8 macro 2019-12-04 19:44:12 -08:00
gpio-104-idi-48.c gpio: 104-idi-48: utilize for_each_set_clump8 macro 2019-12-04 19:44:12 -08:00
gpio-104-idio-16.c gpio: Use new GPIO_LINE_DIRECTION 2019-11-07 09:27:48 +01:00
gpio-adnp.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
gpio-adp5520.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 149 2019-05-30 11:25:18 -07:00
gpio-adp5588.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 149 2019-05-30 11:25:18 -07:00
gpio-altera-a10sr.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201 2019-05-30 11:29:52 -07:00
gpio-altera.c gpio: altera: change to platform_get_irq_optional to avoid false-positive error 2020-01-09 10:35:05 +01:00
gpio-amd8111.c
gpio-amd-fch.c gpio: Use new GPIO_LINE_DIRECTION 2019-11-07 09:27:48 +01:00
gpio-amdpt.c Bulk GPIO changes for the v5.3 kernel cycle: 2019-07-09 09:07:00 -07:00
gpio-arizona.c gpio: arizona: Use local copy of pdata 2019-08-05 11:42:29 +02:00
gpio-aspeed-sgpio.c gpio: aspeed-sgpio: fixed typos 2020-01-23 16:16:05 +01:00
gpio-aspeed.c gpio: aspeed-sgpio: fixed typos 2020-01-23 16:16:05 +01:00
gpio-ath79.c gpio: ath79: use devm_platform_ioremap_resource() 2019-10-09 18:20:19 +02:00
gpio-bcm-kona.c gpio: bcm-kona: use platform_irq_count 2019-12-11 11:06:31 +01:00
gpio-bd9571mwv.c gpio: Use new GPIO_LINE_DIRECTION 2019-11-07 09:27:48 +01:00
gpio-bd70528.c This is the bulk of GPIO changes for the v5.5 kernel cycle 2019-12-01 17:56:50 -08:00
gpio-bd71828.c gpio: bd71828: Initial support for ROHM BD71828 PMIC GPIOs 2020-01-24 07:23:10 +00:00
gpio-brcmstb.c gpio: Remove dev_err() usage after platform_get_irq() 2019-08-05 13:25:34 +02:00
gpio-bt8xx.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
gpio-cadence.c gpio: cadence: Pass irqchip when adding gpiochip 2019-08-15 09:44:19 +02:00
gpio-clps711x.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
gpio-creg-snps.c gpio: aspeed-sgpio: fixed typos 2020-01-23 16:16:05 +01:00
gpio-crystalcove.c
gpio-cs5535.c docs: driver-model: move it to the driver-api book 2019-07-15 11:03:02 -03:00
gpio-da9052.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
gpio-da9055.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
gpio-davinci.c gpio: davinci: silence error prints in case of EPROBE_DEFER 2019-07-15 11:52:34 +02:00
gpio-dln2.c gpio: Use new GPIO_LINE_DIRECTION 2019-11-07 09:27:48 +01:00
gpio-dwapb.c gpiolib: acpi: Split ACPI stuff to gpiolib-acpi.h 2019-07-31 00:57:21 +02:00
gpio-eic-sprd.c gpio: eic: sprd: Fix the incorrect EIC offset when toggling 2019-10-01 11:50:40 +02:00
gpio-em.c gpio: em: Use platform_get_irq() to obtain interrupts 2019-11-13 13:47:48 +01:00
gpio-ep93xx.c gpio: ep93xx: Pass irqchip when adding gpiochip 2019-09-04 10:59:10 +02:00
gpio-exar.c gpio: Use new GPIO_LINE_DIRECTION 2019-11-07 09:27:48 +01:00
gpio-f7188x.c gpio: Use new GPIO_LINE_DIRECTION 2019-11-07 09:27:48 +01:00
gpio-ftgpio010.c gpio: ftgpio: Fix an error handling path in 'ftgpio_gpio_probe()' 2019-08-23 12:02:34 +02:00
gpio-ge.c
gpio-gpio-mm.c gpio: gpio-mm: utilize for_each_set_clump8 macro 2019-12-04 19:44:12 -08:00
gpio-grgpio.c gpio: Remove the unused flags 2020-01-15 11:24:19 +01:00
gpio-gw-pld.c
gpio-hlwd.c gpio: hlwd: Pass irqchip when adding gpiochip 2019-08-15 09:57:29 +02:00
gpio-htc-egpio.c gpio: Use new GPIO_LINE_DIRECTION 2019-11-07 09:27:48 +01:00
gpio-ich.c gpio: Use new GPIO_LINE_DIRECTION 2019-11-07 09:27:48 +01:00
gpio-intel-mid.c gpio: intel-mid: Move hardware initialization to callback 2019-10-15 01:18:51 +02:00
gpio-iop.c Merge branch 'i2c/for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2019-07-15 21:10:39 -07:00
gpio-it87.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 300 2019-06-05 17:37:00 +02:00
gpio-ixp4xx.c gpio: updates for v5.4 2019-09-03 16:04:19 +02:00
gpio-janz-ttl.c Bulk GPIO changes for the v5.3 kernel cycle: 2019-07-09 09:07:00 -07:00
gpio-kempld.c gpio: Use new GPIO_LINE_DIRECTION 2019-11-07 09:27:48 +01:00
gpio-logicvc.c gpio: Add support for the Xylon LogiCVC GPIOs 2019-12-13 09:50:29 +01:00
gpio-loongson1.c drivers: gpio: loongon1: use devm_platform_ioremap_resource() 2019-04-05 00:04:26 +07:00
gpio-loongson.c MIPS: Loongson64: Rename CPU TYPES 2019-10-31 15:03:10 -07:00
gpio-lp873x.c gpio: Use new GPIO_LINE_DIRECTION 2019-11-07 09:27:48 +01:00
gpio-lp3943.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 372 2019-06-05 17:37:10 +02:00
gpio-lp87565.c gpio: Use new GPIO_LINE_DIRECTION 2019-11-07 09:27:48 +01:00
gpio-lpc18xx.c drivers: gpio: lpc18xx: use devm_platform_ioremap_resource() 2019-04-05 00:04:26 +07:00
gpio-lpc32xx.c gpio: lpc32xx: allow building on non-lpc32xx targets 2019-08-15 21:33:07 +02:00
gpio-madera.c gpio: Use new GPIO_LINE_DIRECTION 2019-11-07 09:27:48 +01:00
gpio-max730x.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
gpio-max732x.c Bulk GPIO changes for the v5.3 kernel cycle: 2019-07-09 09:07:00 -07:00
gpio-max3191x.c gpio: max3191x: utilize the for_each_set_clump8 macro 2019-12-04 19:44:13 -08:00
gpio-max7300.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
gpio-max7301.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
gpio-max77620.c This is the bulk of GPIO changes for the v5.5 kernel cycle 2019-12-01 17:56:50 -08:00
gpio-max77650.c gpio: max77650: add MODULE_ALIAS() 2019-07-29 00:03:52 +02:00
gpio-mb86s7x.c gpiolib: acpi: Split ACPI stuff to gpiolib-acpi.h 2019-07-31 00:57:21 +02:00
gpio-mc9s08dz60.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
gpio-mc33880.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 176 2019-05-30 11:29:19 -07:00
gpio-menz127.c drivers: mcb: use symbol namespaces 2019-11-03 19:54:53 +01:00
gpio-merrifield.c gpio: merrifield: Pass irqchip when adding gpiochip 2019-11-13 15:30:53 +02:00
gpio-ml-ioh.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 167 2019-05-30 11:26:39 -07:00
gpio-mlxbf.c gpio: mlxbf: remove unused including <linux/version.h> 2019-04-08 08:47:06 +02:00
gpio-mm-lantiq.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
gpio-mmio.c gpio: mmio: remove untrue leftover comment 2019-11-13 13:49:42 +01:00
gpio-mockup.c gpio: mockup: coding-style fix 2020-02-20 15:41:05 +01:00
gpio-moxtet.c gpio: Use new GPIO_LINE_DIRECTION 2019-11-07 09:27:48 +01:00
gpio-mpc8xxx.c Linux 5.5-rc6 2020-01-17 08:59:29 +01:00
gpio-mpc5200.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333 2019-06-05 17:37:06 +02:00
gpio-msic.c
gpio-mt7621.c gpio: Drop the chained IRQ handler assign function 2020-01-23 15:54:32 +01:00
gpio-mvebu.c gpio: mvebu: clear irq in edge cause register before unmask edge irq 2020-01-23 15:52:40 +01:00
gpio-mxc.c gpio: mxc: Only get the second IRQ when there is more than one IRQ 2019-10-01 11:24:18 +02:00
gpio-mxs.c gpio: Use new GPIO_LINE_DIRECTION 2019-11-07 09:27:48 +01:00
gpio-octeon.c drivers: gpio: octeon: use devm_platform_ioremap_resource() 2019-04-05 00:04:27 +07:00
gpio-omap.c gpio: Use new GPIO_LINE_DIRECTION 2019-11-07 09:27:48 +01:00
gpio-palmas.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201 2019-05-30 11:29:52 -07:00
gpio-pca953x.c Linux 5.5-rc6 2020-01-17 08:59:29 +01:00
gpio-pcf857x.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
gpio-pch.c gpio: pch: Use dev_get_drvdata 2019-07-23 18:59:05 +03:00
gpio-pci-idio-16.c gpio: pci-idio-16: utilize for_each_set_clump8 macro 2019-12-04 19:44:12 -08:00
gpio-pcie-idio-24.c gpio: pcie-idio-24: utilize for_each_set_clump8 macro 2019-12-04 19:44:12 -08:00
gpio-pisosr.c gpio: pisosr: utilize the for_each_set_clump8 macro 2019-12-04 19:44:13 -08:00
gpio-pl061.c gpio: Use new GPIO_LINE_DIRECTION 2019-11-07 09:27:48 +01:00
gpio-pmic-eic-sprd.c gpio: Remove dev_err() usage after platform_get_irq() 2019-08-05 13:25:34 +02:00
gpio-pxa.c gpio: pxa: Avoid a warning when gpio0 and gpio1 IRQS are not there 2020-02-10 10:50:58 +01:00
gpio-raspberrypi-exp.c gpio: Use new GPIO_LINE_DIRECTION 2019-11-07 09:27:48 +01:00
gpio-rc5t583.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201 2019-05-30 11:29:52 -07:00
gpio-rcar.c gpio: rcar: Fix typo in comment 2020-02-20 09:18:54 +01:00
gpio-rda.c gpio: Add RDA Micro GPIO controller support 2019-10-29 15:12:52 +01:00
gpio-rdc321x.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
gpio-reg.c gpio: Use new GPIO_LINE_DIRECTION 2019-11-07 09:27:48 +01:00
gpio-sa1100.c gpio: Use new GPIO_LINE_DIRECTION 2019-11-07 09:27:48 +01:00
gpio-sama5d2-piobu.c gpio: remove unneeded MODULE_VERSION() usage 2019-12-12 17:09:50 +01:00
gpio-sch311x.c gpio: Use new GPIO_LINE_DIRECTION 2019-11-07 09:27:48 +01:00
gpio-sch.c gpio: Use new GPIO_LINE_DIRECTION 2019-11-07 09:27:48 +01:00
gpio-sifive.c gpio/sifive: Add GPIO driver for SiFive SoCs 2020-01-20 19:10:03 +00:00
gpio-siox.c gpio: siox: use raw spinlock for irq related locking 2020-02-21 14:51:56 +01:00
gpio-sodaville.c
gpio-spear-spics.c drivers: gpio: spear-spics: use devm_platform_ioremap_resource() 2019-04-05 00:04:27 +07:00
gpio-sprd.c gpio: Remove dev_err() usage after platform_get_irq() 2019-08-05 13:25:34 +02:00
gpio-sta2x11.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333 2019-06-05 17:37:06 +02:00
gpio-stmpe.c gpio: Use new GPIO_LINE_DIRECTION 2019-11-07 09:27:48 +01:00
gpio-stp-xway.c Bulk GPIO changes for the v5.3 kernel cycle: 2019-07-09 09:07:00 -07:00
gpio-syscon.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
gpio-tb10x.c gpio: remove unneeded MODULE_VERSION() usage 2019-12-12 17:09:50 +01:00
gpio-tc3589x.c gpio: Use new GPIO_LINE_DIRECTION 2019-11-07 09:27:48 +01:00
gpio-tegra186.c gpiolib: Add support for the irqdomain which doesn't use irq_fwspec as arg 2020-01-15 11:17:44 +01:00
gpio-tegra.c gpio: tegra: Use NOIRQ phase for suspend/resume 2019-12-20 10:58:23 +01:00
gpio-thunderx.c gpio: thunderx: Switch to GPIOLIB_IRQCHIP 2020-01-15 11:18:29 +01:00
gpio-timberdale.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 176 2019-05-30 11:29:19 -07:00
gpio-tpic2810.c gpio: Use new GPIO_LINE_DIRECTION 2019-11-07 09:27:48 +01:00
gpio-tps6586x.c
gpio-tps65086.c gpio: Use new GPIO_LINE_DIRECTION 2019-11-07 09:27:48 +01:00
gpio-tps65218.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 111 2019-05-24 17:39:01 +02:00
gpio-tps65910.c
gpio-tps65912.c gpio: Use new GPIO_LINE_DIRECTION 2019-11-07 09:27:48 +01:00
gpio-tps68470.c gpio: Use new GPIO_LINE_DIRECTION 2019-11-07 09:27:48 +01:00
gpio-tqmx86.c gpio: Use new GPIO_LINE_DIRECTION 2019-11-07 09:27:48 +01:00
gpio-ts4800.c drivers: gpio: ts4800: use devm_platform_ioremap_resource() 2019-04-05 00:04:28 +07:00
gpio-ts4900.c gpio: Use new GPIO_LINE_DIRECTION 2019-11-07 09:27:48 +01:00
gpio-ts5500.c
gpio-twl4030.c gpio: Use new GPIO_LINE_DIRECTION 2019-11-07 09:27:48 +01:00
gpio-twl6040.c gpio: Use new GPIO_LINE_DIRECTION 2019-11-07 09:27:48 +01:00
gpio-ucb1400.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
gpio-uniphier.c gpio: uniphier: utilize for_each_set_clump8 macro 2019-12-04 19:44:12 -08:00
gpio-vf610.c gpio: vf610: Pass irqchip when adding gpiochip 2019-08-23 09:41:18 +02:00
gpio-viperboard.c gpio: viperboard: Replace 'unsigned' with 'unsigned int' 2019-08-05 11:26:58 +02:00
gpio-vr41xx.c gpio: vr41xx: Use devm_platform_ioremap_resource() 2019-06-27 15:56:51 +01:00
gpio-vx855.c gpio: vx855: fixed a typo 2020-01-15 13:45:01 +01:00
gpio-wcd934x.c gpio: wcd934x: Fix logic of wcd_gpio_get 2020-02-10 10:50:58 +01:00
gpio-wcove.c gpio: Use new GPIO_LINE_DIRECTION 2019-11-07 09:27:48 +01:00
gpio-winbond.c
gpio-wm831x.c
gpio-wm8350.c
gpio-wm8994.c
gpio-ws16c48.c gpio: ws16c48: utilize for_each_set_clump8 macro 2019-12-04 19:44:12 -08:00
gpio-xgene-sb.c gpiolib: acpi: Split ACPI stuff to gpiolib-acpi.h 2019-07-31 00:57:21 +02:00
gpio-xgene.c gpio: Use new GPIO_LINE_DIRECTION 2019-11-07 09:27:48 +01:00
gpio-xgs-iproc.c This is the bulk of pin control changes for the v5.6 kernel cycle: 2020-01-29 09:51:36 -08:00
gpio-xilinx.c Bulk GPIO changes for the v5.3 kernel cycle: 2019-07-09 09:07:00 -07:00
gpio-xlp.c gpio: xlp: Pass irqchip when adding gpiochip 2019-08-15 09:55:07 +02:00
gpio-xra1403.c gpio: Use new GPIO_LINE_DIRECTION 2019-11-07 09:27:48 +01:00
gpio-xtensa.c gpio: xtensa: fix driver build 2019-12-09 10:40:18 +01:00
gpio-zevio.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
gpio-zx.c gpio: zx: Pass irqchip when adding gpiochip 2019-08-23 09:40:44 +02:00
gpio-zynq.c gpio: zynq: Fix for bug in zynq_gpio_restore_context API 2020-01-07 11:24:44 +01:00
gpiolib-acpi.c gpiolib: acpi: Add honor_wakeup module-option + quirk mechanism 2020-01-07 12:58:15 +01:00
gpiolib-acpi.h gpiolib: acpi: make acpi_can_fallback_to_crs() static 2019-09-10 11:34:20 +01:00
gpiolib-devprop.c gpiolib: devprop: Fix syntax error 2019-04-08 11:20:12 +02:00
gpiolib-devres.c treewide: remove redundant IS_ERR() before error code check 2020-02-04 03:05:27 +00:00
gpiolib-legacy.c
gpiolib-of.c gpio: of: Add DT overlay support for GPIO hogs 2020-02-21 17:10:33 +01:00
gpiolib-of.h gpio: of: Add DT overlay support for GPIO hogs 2020-02-21 17:10:33 +01:00
gpiolib-sysfs.c gpiolib: Add GPIOCHIP_NAME definition 2019-12-12 11:36:13 +01:00
gpiolib.c gpio: of: Add DT overlay support for GPIO hogs 2020-02-21 17:10:33 +01:00
gpiolib.h gpio: of: Add DT overlay support for GPIO hogs 2020-02-21 17:10:33 +01:00
Kconfig - New Drivers 2020-02-03 14:51:57 +00:00
Makefile - New Drivers 2020-02-03 14:51:57 +00:00
TODO gpio: Update TODO 2020-01-09 03:01:33 +01:00