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90b39402e9
linux/drivers/gpio
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Linus Walleij 90b39402e9 gpio: Add API to explicitly name a consumer 
The GPIO (descriptor) API registers a "label" naming what is
currently using the GPIO line. Typically this is taken from
things like the device tree node, so "reset-gpios" will result
in he line being labeled "reset".

The technical effect is pretty much zero: the use is for
debug and introspection, such as "lsgpio" and debugfs files.

However sometimes the user want this cuddly feeling of
listing all GPIO lines and seeing exactly what they are for
and it gives a very fulfilling sense of control. Especially
in the cases when the device tree node doesn't provide a
good name, or anonymous GPIO lines assigned just to
"gpios" in the device tree because the usage is implicit.

For these cases it may be nice to be able to label the
line directly and explicitly.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-06-18 07:55:30 +02:00
..
devres.c gpio: Export devm_gpiod_get_from_of_node() for consumers 2018-01-12 11:05:24 +01:00
gpio-74x164.c The is the bulk of GPIO changes for the v4.16 kernel cycle. 2018-01-31 12:25:27 -08:00
gpio-74xx-mmio.c gpio: 74xx-mmio: Use of_device_get_match_data() 2018-05-16 14:35:24 +02:00
gpio-104-dio-48e.c gpio: 104-dio-48e: make array 'ports' static, shrinks object size 2018-05-16 14:35:24 +02:00
gpio-104-idi-48.c gpio: make several const arrays static, shrinks object size 2018-05-16 14:35:24 +02:00
gpio-104-idio-16.c gpio: 104-idio-16: Implement get_multiple callback 2018-03-26 10:10:18 +02:00
gpio-adnp.c treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
gpio-adp5520.c gpio: adp5520: Include proper header 2018-01-13 22:12:07 +01:00
gpio-adp5588.c gpio: adp5588: Include proper header 2018-01-13 22:14:56 +01:00
gpio-altera-a10sr.c gpio: altera-a10sr: constify gpio_chip structure 2017-08-14 15:01:12 +02:00
gpio-altera.c gpio: altera: Include GPIO driver header 2018-01-13 22:18:34 +01:00
gpio-amd8111.c gpio: amd8111: Include proper header 2018-01-13 22:22:49 +01:00
gpio-amdpt.c gpio: amdpt: Add a new ACPI HID 2016-03-30 10:38:51 +02:00
gpio-arizona.c gpio: arizona: Include proper header 2018-01-13 22:47:48 +01:00
gpio-aspeed.c treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
gpio-ath79.c gpio: ath79: Fix potential NULL dereference in ath79_gpio_probe() 2018-03-27 15:42:29 +02:00
gpio-bcm-kona.c treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
gpio-bd9571mwv.c gpio: Add ROHM BD9571MWV-M PMIC GPIO driver 2017-04-28 09:47:46 +02:00
gpio-brcmstb.c The is the bulk of GPIO changes for the v4.16 kernel cycle. 2018-01-31 12:25:27 -08:00
gpio-bt8xx.c gpio: bt8xx: Include proper header 2018-01-13 22:56:52 +01:00
gpio-clps711x.c gpio: clps711x: Remove board support 2016-06-08 10:49:58 +02:00
gpio-crystalcove.c gpio: crystalcove: Include proper header 2018-01-14 01:48:48 +01:00
gpio-cs5535.c gpio: cs5535: Include proper header 2018-01-14 01:56:24 +01:00
gpio-da9052.c gpio: da905x: Include proper header 2018-01-14 02:00:10 +01:00
gpio-da9055.c gpio: da905x: Include proper header 2018-01-14 02:00:10 +01:00
gpio-davinci.c gpio: davinci: Do not assume continuous IRQ numbering 2018-06-18 07:55:30 +02:00
gpio-dln2.c gpio: dln2: Include proper header 2018-03-19 01:50:07 +01:00
gpio-dwapb.c gpio: dwapb: Rework support for 1 interrupt per port A GPIO 2018-05-23 11:30:13 +02:00
gpio-eic-sprd.c gpio: eic: Add edge trigger emulation for EIC 2018-05-16 14:35:24 +02:00
gpio-em.c gpio: em: Use the right include 2018-03-19 01:50:07 +01:00
gpio-ep93xx.c pinctrl / gpio: Introduce .set_config() callback for GPIO chips 2017-01-26 15:27:37 +01:00
gpio-exar.c gpio: exar: Use correct property prefix and document bindings 2017-08-01 13:43:55 +02:00
gpio-f7188x.c gpio: f7188x: Add a missing break 2017-04-28 10:09:16 +02:00
gpio-ftgpio010.c gpio: ftgpio010: Drop of_gpio.h include 2018-03-19 01:50:24 +01:00
gpio-ge.c gpio: ge: Fix build warning 2018-05-16 14:35:24 +02:00
gpio-gpio-mm.c gpio: make several const arrays static, shrinks object size 2018-05-16 14:35:24 +02:00
gpio-grgpio.c gpio: grgpio: Include the right header 2018-03-19 01:50:28 +01:00
gpio-hlwd.c gpio: Add GPIO driver for Nintendo Wii 2018-02-22 13:54:35 +01:00
gpio-htc-egpio.c treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
gpio-ich.c gpio: ich: Use BIT() macro 2018-03-19 01:50:29 +01:00
gpio-ingenic.c gpio: ingenic: Use of_device_get_match_data() 2018-05-16 14:35:24 +02:00
gpio-intel-mid.c gpio-intel-mid: Delete an error message 2018-02-22 15:29:05 +01:00
gpio-iop.c gpio: iop: add missing MODULE_DESCRIPTION/AUTHOR/LICENSE 2017-12-02 22:42:21 +01:00
gpio-it87.c gpio: it87: Include the right header 2018-03-19 01:50:29 +01:00
gpio-janz-ttl.c gpio: janz-ttl: Use BIT() macro 2018-03-19 01:50:30 +01:00
gpio-kempld.c gpio: kempld: Include the right header 2018-03-19 01:50:31 +01:00
gpio-ks8695.c gpio: ks8695: Include the right header 2018-03-19 01:50:31 +01:00
gpio-loongson1.c gpio: loongson1: fix bgpio usage 2017-10-25 11:25:38 +02:00
gpio-loongson.c gpio: loongson: Use BIT() macros 2018-05-16 14:35:24 +02:00
gpio-lp873x.c gpio: lp873x: Include the right header 2018-05-16 14:35:24 +02:00
gpio-lp3943.c gpio: lp3943: Include the right header 2018-05-16 14:35:24 +02:00
gpio-lp87565.c gpio: lp87565: Set proper output level and direction for direction_output 2017-07-31 15:26:57 +02:00
gpio-lpc18xx.c gpio: constify gpio_chip structures 2016-09-13 10:35:56 +02:00
gpio-lpc32xx.c gpio: lpc32xx: Include the right header 2018-05-16 14:35:24 +02:00
gpio-lynxpoint.c gpio: lynxpoint: Include the right header 2018-05-16 14:35:24 +02:00
gpio-max730x.c gpio: max730x: Include the right header 2018-05-16 14:35:24 +02:00
gpio-max732x.c gpio: max732x: add error handling for i2c_new_dummy 2018-06-18 07:55:30 +02:00
gpio-max3191x.c gpio: Remove VLA from MAX3191X driver 2018-03-27 15:18:06 +02:00
gpio-max7300.c
gpio-max7301.c
gpio-max77620.c gpio: max77620: Make regmap_irq_chip const 2017-08-14 16:06:24 +02:00
gpio-mb86s7x.c gpio: mb86s70: Revert "Return error if requesting an already assigned gpio" 2017-10-31 13:13:34 +01:00
gpio-mc9s08dz60.c gpio: mc9s08dz60: Include the right header 2018-05-16 14:35:24 +02:00
gpio-mc33880.c gpio: mc33880: Include the right header 2018-05-16 14:35:24 +02:00
gpio-menz127.c gpio: Fix wrong rounding in gpio-menz127 2018-06-18 07:55:30 +02:00
gpio-merrifield.c gpio: merrifield: Delete an error message 2018-02-22 15:25:40 +01:00
gpio-ml-ioh.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
gpio-mm-lantiq.c gpio: mm-lantiq: Include the right header 2018-05-16 14:35:24 +02:00
gpio-mmio.c gpio: mmio: Also read bits that are zero 2018-01-16 23:42:36 +01:00
gpio-mockup.c gpio: mockup: use the SPDX identifier and remove license boilerplate 2018-05-16 14:35:24 +02:00
gpio-mpc8xxx.c gpio: mpc8xxx: Do not reverse bits using bgpio 2017-10-25 11:25:40 +02:00
gpio-mpc5200.c gpio: Include linux/gpio.h instead of asm/gpio.h 2016-02-16 00:20:03 +01:00
gpio-msic.c gpio: msic: Include the right header 2018-05-16 14:35:24 +02:00
gpio-mvebu.c gpio: mvebu: Use the proper APIs 2018-05-16 14:35:24 +02:00
gpio-mxc.c gpio: mxc: Switch to SPDX identifier 2018-05-24 10:14:30 +02:00
gpio-mxs.c gpio: mxs: Switch to SPDX identifier 2018-05-24 13:43:56 +02:00
gpio-octeon.c gpio: octeon: Include the right header 2018-05-24 14:22:04 +02:00
gpio-omap.c gpio: omap: Include the right header 2018-05-24 14:24:00 +02:00
gpio-palmas.c gpio: palmas: Include the right header 2018-05-24 14:25:13 +02:00
gpio-pca953x.c gpio: pca953x: Include the right header 2018-05-24 17:09:41 +02:00
gpio-pcf857x.c gpio: pcf857x: Include the right header 2018-05-24 17:09:41 +02:00
gpio-pch.c gpio: pch: Include the right header 2018-05-24 17:09:41 +02:00
gpio-pci-idio-16.c gpio: pci-idio-16: Fix port memory offset for get_multiple callback 2018-04-27 00:55:16 +02:00
gpio-pcie-idio-24.c gpio: pcie-idio-24: Fix off-by-one error in get_multiple loop 2018-04-30 10:48:08 +02:00
gpio-pisosr.c gpio: constify gpio_chip structures 2016-09-13 10:35:56 +02:00
gpio-pl061.c gpio: pl061: Include the right header 2018-05-24 17:09:41 +02:00
gpio-pmic-eic-sprd.c gpio: pmic_eic: Add edge trigger emulation for PMIC EIC 2018-05-16 14:35:24 +02:00
gpio-pxa.c gpio: pxa: Include the right header 2018-05-24 17:09:41 +02:00
gpio-raspberrypi-exp.c gpio: raspberrypi-exp: Driver for RPi3 GPIO expander via mailbox service 2018-02-22 13:49:59 +01:00
gpio-rc5t583.c gpio: rc5t583: make explicitly non-modular 2016-04-05 17:02:35 +02:00
gpio-rcar.c Linux 4.16-rc5 2018-03-18 17:48:59 +01:00
gpio-rdc321x.c gpio: remove redundant owner assignments of drivers 2016-06-07 09:35:16 +02:00
gpio-reg.c gpio: gpio-reg: fix build 2017-12-22 15:24:31 +01:00
gpio-sa1100.c gpio: sa1100: implement get_direction method 2017-03-24 14:04:37 +01:00
gpio-sch311x.c gpio: remove redundant owner assignments of drivers 2016-06-07 09:35:16 +02:00
gpio-sch.c gpio: constify gpio_chip structures 2016-09-13 10:35:56 +02:00
gpio-sodaville.c gpio: sodaville: use resource management for irqs 2017-03-15 11:16:36 +01:00
gpio-spear-spics.c gpio: spear-spics: drop unused MODULE_ tags from non-modular code 2016-08-23 11:23:41 +02:00
gpio-sprd.c gpio: Add GPIO driver for Spreadtrum SC9860 platform 2018-03-02 11:00:43 +01:00
gpio-sta2x11.c gpio: sta2x11: use devres for irq generic chip 2017-08-21 00:06:04 +02:00
gpio-stmpe.c gpio: Remove VLA from stmpe driver 2018-05-24 10:22:21 +02:00
gpio-stp-xway.c gpio: update my email address 2016-12-30 09:18:10 +01:00
gpio-syscon.c gpio: syscon: allow fetching syscon from parent node 2018-05-23 10:07:26 +02:00
gpio-tb10x.c gpio: tb10x: Handle return value of devm_kasprintf 2017-09-21 14:14:17 +02:00
gpio-tc3589x.c gpio: Move irqdomain into struct gpio_irq_chip 2017-11-08 14:06:21 +01:00
gpio-tegra186.c gpio: tegra186: Remove tegra186_gpio_lock_class 2017-11-13 11:43:10 +01:00
gpio-tegra.c gpio: tegra: Convert to use DEFINE_SHOW_ATTRIBUTE macro 2018-02-22 15:25:40 +01:00
gpio-thunderx.c treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
gpio-timberdale.c gpio: timberdale: Improve a size determination 2018-02-22 15:14:58 +01:00
gpio-tpic2810.c gpio: constify gpio_chip structures 2016-09-13 10:35:56 +02:00
gpio-tps6586x.c gpio: remove redundant owner assignments of drivers 2016-06-07 09:35:16 +02:00
gpio-tps65086.c gpio: constify gpio_chip structures 2016-09-13 10:35:56 +02:00
gpio-tps65218.c pinctrl / gpio: Introduce .set_config() callback for GPIO chips 2017-01-26 15:27:37 +01:00
gpio-tps65910.c gpio: remove redundant owner assignments of drivers 2016-06-07 09:35:16 +02:00
gpio-tps65912.c gpio: constify gpio_chip structures 2016-09-13 10:35:56 +02:00
gpio-tps68470.c gpio: tps68470: Update to SPDX license identifier 2018-02-23 15:26:42 +01:00
gpio-ts4800.c gpio: ts4800: Fix module autoload 2016-10-21 14:55:07 +02:00
gpio-ts4900.c gpio: ts4900: Use of_device_get_match_data() 2018-05-16 14:35:24 +02:00
gpio-ts5500.c gpio: ts5500: Use devm_gpiochip_add_data() for gpio registration 2016-02-23 20:35:49 +05:30
gpio-twl4030.c mfd: twl: Move header file out of I2C realm 2017-09-04 14:41:02 +01:00
gpio-twl6040.c gpio: twl6040: remove unneeded forward declaration 2017-08-23 10:20:16 +02:00
gpio-ucb1400.c gpio: ucb1400: Use devm_gpiochip_add_data() for gpio registration 2016-02-23 20:35:50 +05:30
gpio-uniphier.c treewide: Use struct_size() for devm_kmalloc() and friends 2018-06-06 11:15:43 -07:00
gpio-vf610.c gpio: vf610: Use of_device_get_match_data() 2018-05-16 14:35:24 +02:00
gpio-viperboard.c gpio: remove redundant owner assignments of drivers 2016-06-07 09:35:16 +02:00
gpio-vr41xx.c gpio: convert remaining users to gpiochip_add_data() 2016-01-05 11:21:20 +01:00
gpio-vx855.c pinctrl / gpio: Introduce .set_config() callback for GPIO chips 2017-01-26 15:27:37 +01:00
gpio-wcove.c gpio: Move irqdomain into struct gpio_irq_chip 2017-11-08 14:06:21 +01:00
gpio-winbond.c gpio: winbond: Add driver 2018-01-09 14:51:00 +01:00
gpio-wm831x.c gpio-wm831x: Use seq_putc() in wm831x_gpio_dbg_show() 2018-02-12 09:36:06 +01:00
gpio-wm8350.c gpio: constify gpio_chip structures 2016-09-13 10:35:56 +02:00
gpio-wm8994.c pinctrl / gpio: Introduce .set_config() callback for GPIO chips 2017-01-26 15:27:37 +01:00
gpio-ws16c48.c gpio: ws16c48: Implement get_multiple callback 2018-03-26 10:28:19 +02:00
gpio-xgene-sb.c genirq/irqdomain: Rename early argument of irq_domain_activate_irq() 2017-12-29 21:13:04 +01:00
gpio-xgene.c gpio: xgene: mark PM functions as __maybe_unused 2017-03-06 14:35:22 +01:00
gpio-xilinx.c gpio: Convert to using %pOF instead of full_name 2017-08-14 15:01:12 +02:00
gpio-xlp.c gpio: xlp: Use of_device_get_match_data() 2018-05-16 14:35:24 +02:00
gpio-xra1403.c gpio: xra1403: Switch to a fixed upper bound for registers 2018-04-27 01:06:21 +02:00
gpio-xtensa.c gpio: convert remaining users to gpiochip_add_data() 2016-01-05 11:21:20 +01:00
gpio-zevio.c gpio: zevio: make gpio_chip const 2017-08-23 09:21:54 +02:00
gpio-zx.c gpio: Move irqdomain into struct gpio_irq_chip 2017-11-08 14:06:21 +01:00
gpio-zynq.c gpio: zynq: Setup chip->base based on alias ID 2018-05-23 11:43:03 +02:00
gpiolib-acpi.c This is the bulk of pin control changes for the v4.16 kernel cycle: 2018-02-02 14:22:53 -08:00
gpiolib-devprop.c gpio: fix "gpio-line-names" property retrieval 2017-12-22 15:24:31 +01:00
gpiolib-legacy.c Revert "gpiolib: Split GPIO flags parsing and GPIO configuration" 2016-07-04 16:51:29 +02:00
gpiolib-of.c gpio: Convert to use match_string() helper 2018-05-16 14:35:24 +02:00
gpiolib-sysfs.c gpio: sysfs: avoid using kstrtol() in 'value' attribute write 2017-12-20 10:34:58 +01:00
gpiolib.c gpio: Add API to explicitly name a consumer 2018-06-18 07:55:30 +02:00
gpiolib.h gpio: Remove VLA from gpiolib 2018-05-23 14:01:03 +02:00
Kconfig gpio: Remove VLA from gpiolib 2018-05-23 14:01:03 +02:00
Makefile This is the bulk of GPIO changes for the v4.17 kernel cycle: 2018-04-05 09:51:41 -07:00