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c2df3de0d0
linux/drivers/gpio
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Thomas Petazzoni c2df3de0d0 gpio: zynq: properly support runtime PM for GPIO used as interrupts 
The Zynq GPIO driver currently implements runtime PM by:

 - Enabling runtime PM support in ->probe() and letting the runtime PM
   reference counter drop to zero at the end of ->probe().

 - Increasing the runtime PM reference counter in ->request() and
   decreasing it in ->free().

However, the latter is not sufficient: when a GPIO is used as an
interrupt, ->request() and ->free() are not called. Due to this, the
runtime PM counter remains to zero when the only GPIOs in use are used
as interrupts, causing them to simply not work.

To address this problem, this commit implement the
->irq_request_resources() and ->irq_release_resources() hooks,
ensuring that the runtime PM counter is properly
incremented/decremented. Since we override the default hooks, we keep
the existing behavior by making sure they call gpiochip_reqres_irq() /
gpiochip_relres_irq() respectively.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Reviewed-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-02-13 10:36:54 +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 gpio: adp5588.c: Switch to events system 2019-02-09 11:33:37 +01:00
gpio-altera-a10sr.c
gpio-altera.c gpio: altera: Fixup block comment style 2019-01-28 14:59:58 +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-f7188x: add support Fintek F81804 & F81966 2019-01-22 15:48:44 +01:00
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-gw-pld.c gpio: Add a Gateworks PLD GPIO driver 2019-02-09 11:33:37 +01:00
gpio-hlwd.c gpio: hlwd: Implement edge trigger emulation 2019-01-21 14:34:45 +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: iop: add missing MODULE_DESCRIPTION/AUTHOR/LICENSE 2017-12-02 22:42:21 +01:00
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-loongson1.c
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-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: 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: 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: mpc8xxx: Do not reverse bits using bgpio 2017-10-25 11:25:40 +02:00
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 gpio: mvebu: implement get_direction 2019-01-10 16:19:11 +01:00
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 gpio: pca953x: use a per instance irq_chip structure 2019-01-21 14:05:42 +01:00
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: sprd: Remove unused irq trigger setting 2019-01-21 13:47:12 +01:00
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: select General Output Register to set output states 2019-01-21 14:59:50 +01:00
gpio-rdc321x.c gpio: rdc321x: Include the right header 2018-07-02 16:00:49 +02:00
gpio-reg.c gpio: gpio-reg: fix build 2017-12-22 15:24:31 +01:00
gpio-sa1100.c gpio: sa1100: Include the right header 2018-07-02 16:00:49 +02:00
gpio-sama5d2-piobu.c gpio: sama5d2-piobu: Set proper output level for direction_output 2019-01-11 10:34:37 +01:00
gpio-sch311x.c gpio: sch311x: clean an indentation issue, remove extraneous space 2018-11-05 08:54:42 +01:00
gpio-sch.c gpio: sch: Convert to use SPDX identifier 2018-12-07 17:34:08 +02:00
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: Move irqdomain into struct gpio_irq_chip 2017-11-08 14:06:21 +01:00
gpio-tegra186.c gpio: tegra186: Rename flow variable to type 2018-12-14 14:34:10 +01:00
gpio-tegra.c gpio: gpio-tegra: simplify getting .driver_data 2018-11-05 08:54:41 +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-tqmx86.c gpio: tqmx86: Drop unnecessary gpiochip_remove in tqmx86_gpio_probe() 2019-02-09 11:33:37 +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: 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: 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: Move irqdomain into struct gpio_irq_chip 2017-11-08 14:06:21 +01:00
gpio-zynq.c gpio: zynq: properly support runtime PM for GPIO used as interrupts 2019-02-13 10:36:54 +01:00
gpiolib-acpi.c gpiolib: acpi: Correct kernel doc of struct acpi_gpio_event 2019-01-28 15:24:15 +01:00
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/mmc/of: Respect polarity in the device tree 2018-12-17 23:31:07 +01:00
gpiolib-sysfs.c gpio: Use SPDX header for core library 2018-09-25 09:08:48 +02:00
gpiolib.c gpio: add irq domain activate/deactivate functions 2019-01-24 15:33:04 +01:00
gpiolib.h gpio: Export gpiod_get_from_of_node() 2018-12-11 01:04:04 +00:00
Kconfig gpio: Add a Gateworks PLD GPIO driver 2019-02-09 11:33:37 +01:00
Makefile gpio: Add a Gateworks PLD GPIO driver 2019-02-09 11:33:37 +01:00
TODO gpio: Add global TODO file for GPIO 2018-11-05 08:54:40 +01:00