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Bartosz Golaszewski 1979a28075 gpiolib: replace the GPIO device mutex with a read-write semaphore 
There are only two spots where we modify (add to or remove objects from)
the GPIO device list. Readers should be able to access it concurrently.
Replace the mutex with a read-write semaphore and adjust the locking
operations accordingly.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
2024-01-04 10:29:16 +01:00
..
gpio-74x164.c
spi: make remove callback a void function
2022-02-09 13:00:45 +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: adp5520: cleanup probe error path + remove platform_set_drvdata()
2021-05-21 15:29:53 +02:00
gpio-aggregator.c
gpio: aggregator: Set up a parser of delay line parameters
2023-06-16 11:02:07 +02:00
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: Convert to platform remove callback returning void
2023-10-02 08:53:57 +02:00
gpio-amd8111.c
gpio: amd8111: Fix PCI device reference count leak
2022-11-30 17:18:35 +01:00
gpio-amd-fch.c
…
gpio-amdpt.c
gpio: amdpt: Convert to platform remove callback returning void
2023-10-02 08:54:09 +02:00
gpio-arizona.c
gpio: arizona: Remove unused header(s)
2022-10-19 17:03:55 +03:00
gpio-aspeed-sgpio.c
gpio: aspeed-sgpio: Convert to immutable irq_chip
2023-03-10 16:17:20 +01:00
gpio-aspeed.c
treewide: rename pinctrl_gpio_set_config_new()
2023-11-04 10:23:22 +01:00
gpio-ath79.c
gpio: Explicitly include correct DT includes
2023-07-19 13:24:01 +02:00
gpio-bcm-kona.c
gpio: bcm-kona: Drop unused pdev member in private data structure
2023-07-19 13:26:22 +02:00
gpio-bd9571mwv.c
gpio: bd9571mwv: remove platform_set_drvdata() + cleanup probe
2021-05-21 15:43:26 +02:00
gpio-bd71815.c
…
gpio-bd71828.c
gpio: Get rid of duplicate of_node assignment in the drivers
2021-12-17 17:39:35 +01:00
gpio-brcmstb.c
gpio: brcmstb: Convert to platform remove callback returning void
2023-10-02 08:54:20 +02:00
gpio-bt8xx.c
…
gpio-cadence.c
gpio: cadence: Convert to platform remove callback returning void
2023-10-02 08:54:26 +02:00
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: Join function declarations and long lines
2022-06-06 14:09:16 +03:00
gpio-cs5535.c
…
gpio-da9052.c
gpio: da9052: Remove unused header(s)
2022-10-19 17:03:55 +03:00
gpio-da9055.c
…
gpio-davinci.c
gpio: Use device_get_match_data()
2023-10-09 09:08:08 +02:00
gpio-dln2.c
gpio: dln2: Convert to platform remove callback returning void
2023-10-02 08:54:31 +02:00
gpio-ds4520.c
gpio: ds4520: Add ADI DS4520 GPIO Expander Support
2023-07-29 15:56:33 +02:00
gpio-dwapb.c
gpio: dwapb: Use generic request, free and set_config
2024-01-02 14:16:17 +01:00
gpio-eic-sprd.c
gpio: eic-sprd: use a helper variable for &pdev->dev
2023-09-13 14:13:32 +02:00
gpio-elkhartlake.c
gpio: elkhartlake: reuse pm_ops from Intel Tangier driver
2023-11-13 17:59:48 +02:00
gpio-em.c
pinctrl: em: drop the wrapper around pinctrl_gpio_request()
2023-11-04 10:23:23 +01:00
gpio-en7523.c
gpio: Add support for Airoha EN7523 GPIO controller
2022-02-02 10:16:19 +01:00
gpio-ep93xx.c
gpio: ep93xx: remove unused variable
2023-01-27 14:05:38 +01:00
gpio-exar.c
gpio: exar: remove unneeded platform_set_drvdata() call
2023-07-29 16:04:38 +02:00
gpio-f7188x.c
gpio-f7188x: fix base values conflicts with other gpio pins
2023-09-11 09:03:44 +02:00
gpio-ftgpio010.c
gpio: ftgpio010: Convert to platform remove callback returning void
2023-10-02 08:54:36 +02:00
gpio-fxl6408.c
gpio: fx6408: Convert to use maple tree register cache
2023-10-02 08:58:01 +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: Convert to platform remove callback returning void
2023-10-02 08:54:41 +02:00
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: Fix format specifier
2023-10-13 08:39:30 +02:00
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: Handle clock output on pin 14 and 15
2023-12-01 10:48:32 +01:00
gpio-janz-ttl.c
…
gpio-kempld.c
…
gpio-latch.c
gpio: Add gpio latch driver
2022-10-26 14:52:01 +02:00
gpio-ljca.c
gpio: update Intel LJCA USB GPIO driver
2023-10-11 11:33:38 +02:00
gpio-logicvc.c
gpio: logicvc: remove unneeded platform_set_drvdata() call
2023-07-29 16:05:50 +02:00
gpio-loongson1.c
gpio: loongson1: Add DT support
2023-03-23 14:31:18 +01:00
gpio-loongson-64bit.c
gpio: loongson: add more gpio chip support
2023-09-27 09:06:50 +02:00
gpio-loongson.c
…
gpio-lp873x.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_319.RULE
2022-06-10 14:51:36 +02:00
gpio-lp3943.c
gpio: lp3943: remove unneeded platform_set_drvdata() call
2023-08-01 21:14:48 +02:00
gpio-lp87565.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_319.RULE
2022-06-10 14:51:36 +02:00
gpio-lpc18xx.c
gpio: lpc18xx: Convert to platform remove callback returning void
2023-10-02 08:54:50 +02:00
gpio-lpc32xx.c
gpio: lpc32xx: remove redundant CONFIG_OF and of_match_ptr()
2023-08-03 15:58:49 +02:00
gpio-madera.c
…
gpio-max730x.c
gpio: max730x: don't use kernel-doc marker for regular comment
2023-12-07 09:24:08 +01:00
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
spi: make remove callback a void function
2022-02-09 13:00:45 +00:00
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: mb86s7x: Convert to platform remove callback returning void
2023-10-02 08:54:55 +02:00
gpio-mc33880.c
spi: make remove callback a void function
2022-02-09 13:00:45 +00:00
gpio-menz127.c
gpio: use raw spinlock for gpio chip shadowed data
2022-04-25 12:10:02 +02:00
gpio-merrifield.c
gpio: merrifield: Utilise temporary variable for struct device
2023-03-06 17:10:46 +02:00
gpio-ml-ioh.c
gpio: ml-ioh: Convert to use managed functions pcim* and devm_*
2022-05-20 19:20:35 +02:00
gpio-mlxbf2.c
gpio: mlxbf2: Convert to immutable irq_chip
2023-03-10 16:17:32 +01:00
gpio-mlxbf3.c
gpio: mlxbf3: use capital "OR" for multiple licenses in SPDX
2023-08-24 10:04:04 +02:00
gpio-mlxbf.c
…
gpio-mm-lantiq.c
gpio: mm-lantiq: Convert to platform remove callback returning void
2023-10-02 08:55:00 +02:00
gpio-mmio.c
gpio: mmio: Clean up headers
2023-12-18 13:43:06 +01:00
gpio-mockup.c
gpio: mockup: initialize a managed pointer in place
2023-11-20 14:24:50 +01:00
gpio-moxtet.c
…
gpio-mpc8xxx.c
gpio: mpc8xxx: Convert to platform remove callback returning void
2023-10-02 08:55:09 +02:00
gpio-mpc5200.c
gpio: mpc5200: Convert to platform remove callback returning void
2023-10-02 08:55:04 +02:00
gpio-msc313.c
gpio: Explicitly include correct DT includes
2023-07-19 13:24:01 +02:00
gpio-mt7621.c
gpio updates for v6.1-rc1
2022-10-08 09:46:29 -07:00
gpio-mvebu.c
pwm: Changes for v6.7-rc1
2023-11-09 13:47:52 -08:00
gpio-mxc.c
gpio: mxc: Use helper function devm_clk_get_optional_enabled()
2023-08-21 14:11:16 +02:00
gpio-mxs.c
gpio: mxs: fix Wvoid-pointer-to-enum-cast warning
2023-08-11 16:21:46 +02:00
gpio-npcm-sgpio.c
gpio: nuvoton: Add Nuvoton NPCM sgpio driver
2024-01-03 11:25:41 +01:00
gpio-octeon.c
…
gpio-omap.c
OMAP/gpio: drop MPUIO static base
2023-10-04 11:37:25 +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: Convert to use maple tree register cache
2023-10-02 08:57:48 +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: pch: Change PCI device macros
2022-06-21 18:01:11 +03:00
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: pl061: Add missing header(s)
2022-10-24 12:29:26 +03:00
gpio-pmic-eic-sprd.c
gpio: pmic-eic-sprd: Configure the bit corresponding to the EIC through offset
2024-01-03 09:50:47 +01:00
gpio-pxa.c
treewide: rename pinctrl_gpio_direction_output_new()
2023-11-04 10:23:22 +01:00
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
treewide: rename pinctrl_gpio_free_new()
2023-11-04 10:23:21 +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: realtek-otto: switch to 32-bit I/O
2022-08-31 17:46:30 +02:00
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
treewide: rename pinctrl_gpio_direction_output_new()
2023-11-04 10:23:22 +01:00
gpio-rtd.c
gpio: rtd: Add support for Realtek DHC(Digital Home Center) RTD SoCs
2024-01-03 10:46:21 +01:00
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-sch311x.c
gpio: sch311x: Use devm_gpiochip_add_data() to simplify remove path
2023-05-17 11:52:14 +02:00
gpio-sch.c
gpio: sch: remove unneeded call to platform_set_drvdata()
2023-08-03 15:44:46 +02:00
gpio-sifive.c
gpio: sifive: remove unneeded call to platform_set_drvdata()
2023-11-15 15:39:40 +01:00
gpio-sim.c
gpio: sim: implement the dbg_show() callback
2023-12-08 09:37:30 +01:00
gpio-siox.c
gpio: siox: Convert to immutable irq_chip
2023-03-23 14:31:18 +01:00
gpio-sl28cpld.c
gpio: sl28cpld: Replace irqchip mask_invert with unmask_base
2022-11-15 15:41:45 +01:00
gpio-sodaville.c
gpio: Bulk conversion to generic_handle_domain_irq()
2021-08-12 11:39:38 +01:00
gpio-spear-spics.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_56.RULE (part 2)
2022-06-10 14:51:35 +02:00
gpio-sprd.c
gpio: Explicitly include correct DT includes
2023-07-19 13:24:01 +02:00
gpio-stmpe.c
gpio: stmpe: use gpiochip_dup_line_label()
2023-12-08 09:26:28 +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: simplify locking using cleanup helpers
2023-11-20 13:33:31 +02:00
gpio-tangier.h
gpio: tangier: unexport suspend/resume handles
2023-11-13 17:59:48 +02:00
gpio-tb10x.c
gpio updates for v6.7-rc1
2023-10-31 17:21:54 -10:00
gpio-tc3589x.c
gpio: tc3589x: Make irqchip immutable
2022-10-03 20:56:46 +02:00
gpio-tegra186.c
gpio: Explicitly include correct DT includes
2023-07-19 13:24:01 +02:00
gpio-tegra.c
pinctrl: tegra: drop the wrapper around pinctrl_gpio_request()
2023-11-04 10:23:23 +01:00
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: Add Delta TN48M CPLD GPIO driver
2022-02-25 09:59:35 +01:00
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: don't use CONFIG_DEBUG_GPIO
2023-12-27 15:56:48 +01:00
gpio-tps65910.c
gpio: Explicitly include correct DT includes
2023-07-19 13:24:01 +02:00
gpio-tps65912.c
gpio: tps65912: remove platform_set_drvdata() + cleanup probe
2021-05-24 20:58:46 +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: remove unneeded call to platform_set_drvdata()
2023-08-03 15:47:58 +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: ts5500: Convert to platform remove callback returning void
2023-10-02 08:55:27 +02:00
gpio-twl4030.c
This removes all usage of global GPIO numbers from
2023-05-31 17:01:34 +02:00
gpio-twl6040.c
gpio: Propagate firmware node from a parent device
2021-12-17 17:50:46 +01:00
gpio-uniphier.c
gpio: uniphier: Convert to platform remove callback returning void
2023-10-02 08:55:32 +02:00
gpio-vf610.c
treewide: rename pinctrl_gpio_direction_output_new()
2023-11-04 10:23:22 +01:00
gpio-viperboard.c
gpio: viperboard: remove platform_set_drvdata() call in probe
2021-08-31 11:29:28 +02:00
gpio-virtio.c
virtio: wrap config->reset calls
2022-01-14 18:50:52 -05:00
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: Explicitly include correct DT includes
2023-07-19 13:24:01 +02:00
gpio-wcove.c
gpio: wcove: make irq_chip immutable
2022-06-06 14:09:16 +03:00
gpio-winbond.c
gpio: winbond: Fix error code in winbond_gpio_get()
2022-06-23 16:29:55 +02:00
gpio-wm831x.c
gpio: wm831x: use gpiochip_dup_line_label()
2023-12-08 09:26:20 +01:00
gpio-wm8350.c
gpio: wm8350: Remove unused header(s)
2022-10-24 12:29:41 +03:00
gpio-wm8994.c
gpio: wm8994: use gpiochip_dup_line_label()
2023-12-08 09:26:25 +01:00
gpio-ws16c48.c
gpio updates for v6.6
2023-08-29 10:21:56 -07:00
gpio-xgene-sb.c
gpio: xgene-sb: Convert to platform remove callback returning void
2023-10-02 08:55:38 +02:00
gpio-xgene.c
gpio: xgene: simplify probe, return devm_gpiochip_add_data() directly
2021-05-23 20:30:26 +02:00
gpio-xgs-iproc.c
gpio: xgs-iproc: Convert to platform remove callback returning void
2023-10-02 08:55:42 +02:00
gpio-xilinx.c
gpio: xilinx: remove excess kernel doc
2023-12-18 09:56:21 +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: remove unneeded call to platform_set_drvdata()
2023-08-03 15:48:27 +02:00
gpio-zynq.c
gpio: zynq: Convert to platform remove callback returning void
2023-10-02 08:55:50 +02:00
gpio-zynqmp-modepin.c
gpio: modepin: Add driver support for modepin GPIO controller
2021-09-23 10:09:58 +02:00
gpiolib-acpi.c
gpio updates for v6.7-rc1
2023-10-31 17:21:54 -10:00
gpiolib-acpi.h
gpiolib: Clean up headers
2023-03-06 12:33:02 +02:00
gpiolib-cdev.c
gpiolib: cdev: replace locking wrappers for gpio_device with guards
2023-12-27 15:45:45 +01:00
gpiolib-cdev.h
…
gpiolib-devres.c
gpiolib: of: remove [devm_]gpiod_get_from_of_node() APIs
2023-01-30 15:55:28 +01:00
gpiolib-legacy.c
gpiolib: Kill unused GPIOF_OPEN_*
2023-06-01 09:52:39 +02:00
gpiolib-of.c
sound updates for 6.7
2023-11-02 14:34:14 -10:00
gpiolib-of.h
gpiolib: Clean up headers
2023-03-06 12:33:02 +02:00
gpiolib-swnode.c
gpio: swnode: replace gpiochip_find() with gpio_device_find_by_label()
2023-10-04 13:36:23 +02:00
gpiolib-swnode.h
gpiolib: add support for software nodes
2022-11-15 11:21:43 +01:00
gpiolib-sysfs.c
gpiolib: replace the GPIO device mutex with a read-write semaphore
2024-01-04 10:29:16 +01:00
gpiolib-sysfs.h
gpiolib: use a mutex to protect the list of GPIO devices
2023-12-18 10:00:43 +01:00
gpiolib.c
gpiolib: replace the GPIO device mutex with a read-write semaphore
2024-01-04 10:29:16 +01:00
gpiolib.h
gpiolib: replace the GPIO device mutex with a read-write semaphore
2024-01-04 10:29:16 +01:00
Kconfig
gpio: nuvoton: Add Nuvoton NPCM sgpio driver
2024-01-03 11:25:41 +01:00
Makefile
gpio: nuvoton: Add Nuvoton NPCM sgpio driver
2024-01-03 11:25:41 +01:00
TODO
gpiolib: split of_mm_gpio_chip out of linux/of_gpio.h
2023-03-06 12:33:01 +02:00