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linux-stable/drivers/gpio
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Thomas Petazzoni d449991c4d gpio: add core support for pull-up/pull-down configuration 
This commit adds support for configuring the pull-up and pull-down
resistors available in some GPIO controllers. While configuring
pull-up/pull-down is already possible through the pinctrl subsystem,
some GPIO controllers, especially simple ones such as GPIO expanders
on I2C, don't have any pinmuxing capability and therefore do not use
the pinctrl subsystem.

This commit implements the GPIO_PULL_UP and GPIO_PULL_DOWN flags,
which can be used from the Device Tree, to enable a pull-up or
pull-down resistor on a given GPIO.

The flag is simply propagated all the way to the core GPIO subsystem,
where it is used to call the gpio_chip ->set_config callback with the
appropriate existing PIN_CONFIG_BIAS_* values.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-02-13 09:10:14 +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: Mask read inputs for get_multiple 2018-11-05 08:54:41 +01:00
gpio-104-idi-48.c gpio: 104-idi-48e: Mask the read inputs for get_multiple 2018-11-05 08:54:41 +01:00
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 drivers: gpio: Update MODULE AUTHOR email address 2018-08-29 13:30:25 +02:00
gpio-adp5588.c This is the bulk of GPIO changes for the v4.20 series: 2018-10-23 08:45:05 +01:00
gpio-altera-a10sr.c
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-arizona.c gpio: arizona: Include proper header 2018-01-13 22:47:48 +01:00
gpio-aspeed.c gpio: aspeed: remove duplicated statement 2018-12-21 11:14:11 +01:00
gpio-ath79.c gpio: fix meaningless return expression 2018-07-29 23:34:54 +02:00
gpio-bcm-kona.c gpio-bcm-kona: use new req/relres and dis/enable_irq funcs 2018-09-10 08:57:36 +02:00
gpio-bd9571mwv.c
gpio-brcmstb.c gpio: brcmstb: allow 0 width GPIO banks 2018-08-30 11:04:50 +02:00
gpio-bt8xx.c gpio: bt8xx: Include proper header 2018-01-13 22:56:52 +01:00
gpio-cadence.c gpio: Add Cadence GPIO driver 2018-12-21 11:41:00 +01:00
gpio-clps711x.c
gpio-creg-snps.c GPIO: add single-register GPIO via CREG driver 2018-10-10 09:21:06 +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: restore a way to manually specify the GPIO base 2018-11-26 16:45:10 +05:30
gpio-dln2.c gpio: dln2: Include proper header 2018-03-19 01:50:07 +01:00
gpio-dwapb.c gpio: gpio-dwapb: simplify getting .driver_data 2018-11-05 08:54:41 +01:00
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: Don't shadow error code of gpiochip_lock_as_irq() 2018-08-06 23:46:55 +02:00
gpio-ep93xx.c gpio: ep93xx: fix test for end of loop 2018-09-10 08:48:24 +02:00
gpio-exar.c
gpio-f7188x.c
gpio-ftgpio010.c gpio: ftgpio: Support debounce timer 2018-08-30 09:14:54 +02:00
gpio-ge.c gpio: ge: Fix build warning 2018-05-16 14:35:24 +02:00
gpio-gpio-mm.c gpio: gpio-mm: Mask read inputs for get_multiple 2018-11-05 08:54:41 +01:00
gpio-grgpio.c drivers/gpio/gpio-grgpio.c: Remove duplicate header 2018-11-19 15:09:22 +01:00
gpio-hlwd.c gpio: Add GPIO driver for Nintendo Wii 2018-02-22 13:54:35 +01:00
gpio-htc-egpio.c gpio: htc-egpio: Remove set but not used variable 'bit' 2018-10-01 12:27:19 +02:00
gpio-ich.c gpio: ich: Convert to use SPDX identifier 2018-12-07 17:34:07 +02:00
gpio-intel-mid.c gpio: intel-mid: Convert to use SPDX identifier 2018-12-07 17:34:07 +02:00
gpio-iop.c
gpio-it87.c gpio: it87: Add support for IT8613 2018-08-10 23:19:17 +02:00
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: Change to use DEFINE_SHOW_ATTRIBUTE macro 2018-12-07 11:10:14 +01:00
gpio-loongson.c gpio: loongson: Use BIT() macros 2018-05-16 14:35:24 +02:00
gpio-loongson1.c
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-lpc18xx.c gpio: lpc18xx: fix GPIO controller driver build as a module 2018-12-10 09:10:46 +01:00
gpio-lpc32xx.c gpio: lpc32xx: Include the right header 2018-05-16 14:35:24 +02:00
gpio-lynxpoint.c intel-gpio for v4.21-1 2018-12-14 14:27:41 +01:00
gpio-madera.c gpio: madera: Support Cirrus Logic Madera class codecs 2018-06-05 11:15:30 +01:00
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 gpiolib: Pass array info to get/set array functions 2018-09-13 11:16:54 +02:00
gpio-max7300.c
gpio-max7301.c gpio: max7301: fix driver for use with CONFIG_VMAP_STACK 2018-12-21 09:23:45 +01:00
gpio-max77620.c regmap: regmap-irq/gpio-max77620: add level-irq support 2018-12-19 18:35:45 +00:00
gpio-mb86s7x.c
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: Convert to use SPDX identifier 2018-12-07 17:34:08 +02:00
gpio-ml-ioh.c gpio: ml-ioh: Fix buffer underwrite on probe error path 2018-07-29 23:13:09 +02:00
gpio-mm-lantiq.c gpio: mm-lantiq: Include the right header 2018-05-16 14:35:24 +02:00
gpio-mmio.c gpio: Use SPDX header for core library 2018-09-25 09:08:48 +02:00
gpio-mockup.c gpio: mockup: fix indicated direction 2018-11-16 23:06:29 +01:00
gpio-mpc8xxx.c
gpio-mpc5200.c
gpio-msic.c gpio: msic: Include the right header 2018-05-16 14:35:24 +02:00
gpio-mt7621.c gpio: mt7621: pass mediatek_gpio_bank_probe() failure up the stack 2018-12-07 10:47:24 +01:00
gpio-mvebu.c This is the bulk of GPIO changes for the v4.21 kernel series: 2018-12-28 20:00:21 -08:00
gpio-mxc.c gpio: mxc: move gpio noirq suspend/resume to syscore phase 2018-11-16 22:56:54 +01:00
gpio-mxs.c gpio: mxs: read pin level directly instead of using .get 2018-12-21 11:29:57 +01:00
gpio-octeon.c gpio: octeon: Include the right header 2018-05-24 14:22:04 +02:00
gpio-omap.c This is the bulk of GPIO changes for the v4.21 kernel series: 2018-12-28 20:00:21 -08:00
gpio-palmas.c gpio: palmas: Include the right header 2018-05-24 14:25:13 +02:00
gpio-pca953x.c This is the bulk of GPIO changes for the v4.21 kernel series: 2018-12-28 20:00:21 -08:00
gpio-pcf857x.c gpio: pcf857x: Include the right header 2018-05-24 17:09:41 +02:00
gpio-pch.c gpio: pch: Convert to use SPDX identifier 2018-12-07 17:34:08 +02:00
gpio-pci-idio-16.c gpio: pci-idio-16: Mask read inputs for get_multiple 2018-11-05 08:54:42 +01:00
gpio-pcie-idio-24.c gpio: pcie-idio-24: Mask read inputs for get_multiple 2018-11-05 08:54:42 +01:00
gpio-pisosr.c gpio-pisosr: add support for get_multiple 2018-07-29 21:55:33 +02:00
gpio-pl061.c gpio: pl061: Move irq_chip definition inside struct pl061 2018-11-05 08:54:42 +01:00
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: fix legacy non pinctrl aware builds again 2018-11-16 23:06:29 +01:00
gpio-raspberrypi-exp.c gpio: raspberrypi-exp: decrease refcount on firmware dt node 2018-12-17 15:28:30 +01:00
gpio-rc5t583.c gpio: rc5t583: Include the right header 2018-07-02 16:00:49 +02:00
gpio-rcar.c gpio: rcar: reference device instead of platform device 2018-12-05 22:52:31 +01:00
gpio-rdc321x.c gpio: rdc321x: Include the right header 2018-07-02 16:00:49 +02:00
gpio-reg.c
gpio-sa1100.c gpio: sa1100: Include the right header 2018-07-02 16:00:49 +02:00
gpio-sama5d2-piobu.c gpio: add driver for SAMA5D2 PIOBU pins 2018-12-21 10:55:57 +01:00
gpio-sch.c gpio: sch: Convert to use SPDX identifier 2018-12-07 17:34:08 +02:00
gpio-sch311x.c gpio: sch311x: clean an indentation issue, remove extraneous space 2018-11-05 08:54:42 +01:00
gpio-siox.c gpio: new driver to work with a 8x12 siox 2018-09-28 09:30:42 +02:00
gpio-sodaville.c gpio: sodaville: Convert to use SPDX identifier 2018-12-07 17:34:08 +02:00
gpio-spear-spics.c gpio: spear-spics: Include the right header 2018-07-02 16:00:49 +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: Inline regs macro 2018-07-02 16:00:49 +02:00
gpio-stmpe.c gpio: stmpe: Include the right header 2018-07-02 16:00:49 +02:00
gpio-stp-xway.c gpio: stp-xway: Include the right header 2018-07-02 16:00:49 +02:00
gpio-syscon.c gpio: syscon: Fix possible NULL ptr usage 2018-10-10 10:33:11 +02:00
gpio-tb10x.c gpio: tb10x: Use GENERIC_GPIO 2018-08-29 08:53:37 +02:00
gpio-tc3589x.c
gpio-tegra.c gpio: gpio-tegra: simplify getting .driver_data 2018-11-05 08:54:41 +01:00
gpio-tegra186.c gpio: tegra186: Rename flow variable to type 2018-12-14 14:34:10 +01:00
gpio-thunderx.c treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
gpio-timberdale.c gpio: timberdale: Include the right header 2018-08-10 23:04:27 +02:00
gpio-tpic2810.c
gpio-tps6586x.c gpio: tps65xxx: Use SPDX license tag 2018-09-04 08:22:47 +02:00
gpio-tps65086.c gpio: tps65xxx: Use SPDX license tag 2018-09-04 08:22:47 +02:00
gpio-tps65218.c
gpio-tps65910.c gpio: tps65xxx: Use SPDX license tag 2018-09-04 08:22:47 +02:00
gpio-tps65912.c gpio: tps65xxx: Use SPDX license tag 2018-09-04 08:22:47 +02:00
gpio-tps68470.c gpio: tps68470: Update to SPDX license identifier 2018-02-23 15:26:42 +01:00
gpio-ts4800.c
gpio-ts4900.c gpio: ts4900: Use of_device_get_match_data() 2018-05-16 14:35:24 +02:00
gpio-ts5500.c gpio: ts5500: Delete platform data handling 2018-09-04 08:22:47 +02:00
gpio-twl4030.c gpio: twl4030: Implement .get_direction() 2018-09-10 08:48:51 +02:00
gpio-twl6040.c gpio: twl6040: Implement .get_direction() 2018-09-10 08:49:22 +02:00
gpio-ucb1400.c
gpio-uniphier.c gpio: uniphier: convert to SPDX License Identifier 2018-12-07 13:40:28 +01:00
gpio-vf610.c gpio: vf610: add optional clock support 2018-11-16 23:09:39 +01:00
gpio-viperboard.c gpio: viperboard: Cut down on boilerplate 2018-09-17 10:55:24 -07:00
gpio-vr41xx.c gpio: vr41xx: Delete vr41xx_gpio_pullupdown() callback 2018-09-17 10:55:24 -07:00
gpio-vx855.c gpio: vx855: Cut down on boilerplate 2018-09-17 10:55:24 -07:00
gpio-wcove.c
gpio-winbond.c
gpio-wm831x.c gpio: wm8xxx: Cut down on boilerplate 2018-09-17 10:55:24 -07:00
gpio-wm8350.c gpio: wm8xxx: Cut down on boilerplate 2018-09-17 10:55:24 -07:00
gpio-wm8994.c gpio: wm8xxx: Cut down on boilerplate 2018-09-17 10:55:24 -07:00
gpio-ws16c48.c gpio: ws16c48: Mask read inputs for get_multiple 2018-11-05 08:54:42 +01:00
gpio-xgene-sb.c gpio: xgene-sb: Don't shadow error code of gpiochip_lock_as_irq() 2018-08-06 23:46:55 +02:00
gpio-xgene.c
gpio-xilinx.c gpio: xilinx: Use the right include 2018-08-10 23:19:17 +02:00
gpio-xlp.c gpio: xlp: Cut down on boilerplate 2018-09-17 10:55:24 -07:00
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: xtensa: Cut down on boilerplate 2018-09-17 10:55:24 -07:00
gpio-zevio.c gpio: zevio: Include the right header 2018-09-04 08:22:47 +02:00
gpio-zx.c
gpio-zynq.c gpio: zynq: Report gpio direction at boot 2018-12-07 13:37:25 +01:00
gpiolib-acpi.c This is the bulk of GPIO changes for the v4.21 kernel series: 2018-12-28 20:00:21 -08:00
gpiolib-devprop.c Accept partial 'gpio-line-names' property. 2018-10-01 13:15:06 +02:00
gpiolib-devres.c gpio: Add devm_gpiod_unhinge() 2018-12-11 01:04:23 +00:00
gpiolib-legacy.c gpio: Use SPDX header for core library 2018-09-25 09:08:48 +02:00
gpiolib-of.c gpio: add core support for pull-up/pull-down configuration 2019-02-13 09:10:14 +01:00
gpiolib-sysfs.c gpio: Use SPDX header for core library 2018-09-25 09:08:48 +02:00
gpiolib.c gpio: add core support for pull-up/pull-down configuration 2019-02-13 09:10:14 +01:00
gpiolib.h gpio: add core support for pull-up/pull-down configuration 2019-02-13 09:10:14 +01:00
Kconfig gpio: sama5d2-piobu: Depend on OF_GPIO 2018-12-22 11:08:06 +01:00
Makefile gpio: Add Cadence GPIO driver 2018-12-21 11:41:00 +01:00
TODO gpio: Add global TODO file for GPIO 2018-11-05 08:54:40 +01:00