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linux/drivers/gpio
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Linus Walleij 545ebd9a9b gpio: drop lock before reading GPIO direction 
When adding the gpiochip, the GPIO HW drivers' callback get_direction()
could get called in atomic context. Some of the GPIO HW drivers may
sleep when accessing the register.

Move the lock before initializing the descriptors.

Reported-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-05-30 17:11:59 +02:00
..
devres.c gpio: Propagate all errors in devm_get_gpiod_from_child() 2016-02-25 10:04:25 +01:00
gpio-74x164.c gpio: 74x164: add dt support for nxp's 74x594 2016-03-31 10:25:51 +02:00
gpio-74xx-mmio.c gpio: 74xx-mmio: Use devm_gpiochip_add_data() for gpio registration 2016-02-23 20:19:42 +05:30
gpio-104-dio-48e.c gpio: 104-dio-48e: Utilize the ISA bus driver 2016-05-02 09:32:04 -07:00
gpio-104-idi-48.c gpio: 104-idi-48: Utilize the ISA bus driver 2016-05-02 09:32:04 -07:00
gpio-104-idio-16.c gpio: 104-idio-16: Utilize the ISA bus driver 2016-05-02 09:32:04 -07:00
gpio-adnp.c gpio: adnp: Use devm_gpiochip_add_data() for gpio registration 2016-02-23 20:19:46 +05:30
gpio-adp5520.c gpio: adp5520: Use devm_gpiochip_add_data() for gpio registration 2016-02-23 20:34:06 +05:30
gpio-adp5588.c gpio: adp5588: Use devm_gpiochip_add_data() for gpio registration 2016-02-23 20:34:24 +05:30
gpio-altera.c gpio: gpio-altera: Remove gpiochip on probe failure. 2016-01-27 10:50:22 +01:00
gpio-amd8111.c gpio: amd8111: Use devm_request_region 2016-02-16 00:19:52 +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: Use devm_gpiochip_add_data() for gpio registration 2016-02-23 20:34:29 +05:30
gpio-ath79.c gpio: ath79: Check valid gpio count for both DT and non-DT cases 2016-02-25 15:20:43 +01:00
gpio-bcm-kona.c gpio: bcm-kona: make explicitly non-modular 2016-03-31 12:01:15 +02:00
gpio-brcmstb.c gpio: brcmstb: Return proper error if bank width is invalid 2016-04-15 10:09:48 +02:00
gpio-bt8xx.c
gpio-clps711x.c gpio: clps711x: Use devm_gpiochip_add_data() for gpio registration 2016-02-23 20:35:27 +05:30
gpio-crystalcove.c gpio: crystalcove: Use devm_gpiochip_add_data() for gpio registration 2016-02-23 20:35:27 +05:30
gpio-cs5535.c gpio: cs5535: Use devm_gpiochip_add_data() for gpio registration 2016-02-23 20:35:28 +05:30
gpio-da9052.c gpio: da9052: Use devm_gpiochip_add_data() for gpio registration 2016-02-23 20:35:29 +05:30
gpio-da9055.c gpio: da9055: Use devm_gpiochip_add_data() for gpio registration 2016-02-23 20:35:29 +05:30
gpio-davinci.c Merge branch 'devel' into for-next 2016-02-22 13:47:49 +01:00
gpio-dln2.c gpio: dln2: Use devm_gpiochip_add_data() for gpio registration 2016-02-23 20:35:30 +05:30
gpio-dwapb.c gpio: dwapb: Add ACPI device ID for DWAPB GPIO controller on X-Gene platforms 2016-05-11 11:32:39 +02:00
gpio-em.c
gpio-ep93xx.c gpio: ep93xx: Use devm_gpiochip_add_data() for gpio registration 2016-02-23 20:35:30 +05:30
gpio-etraxfs.c
gpio-f7188x.c gpio: f7188x: fix edit mistake 2016-04-18 13:32:20 +02:00
gpio-ge.c gpio: ge: Use devm_gpiochip_add_data() for gpio registration 2016-02-23 20:35:31 +05:30
gpio-grgpio.c
gpio-ich.c gpio: ich: Use devm_request_region 2016-02-16 00:19:53 +01:00
gpio-intel-mid.c
gpio-iop.c gpio: iop: Use devm_gpiochip_add_data() for gpio registration 2016-02-23 20:35:32 +05:30
gpio-it87.c gpio: gpio-it87: Add support for IT8620 and IT8628 2016-03-31 11:59:43 +02:00
gpio-janz-ttl.c gpio: janz-ttl: Use devm_gpiochip_add_data() for gpio registration 2016-02-23 20:35:33 +05:30
gpio-kempld.c gpio: kempld: Use devm_gpiochip_add_data() for gpio registration 2016-02-23 20:35:34 +05:30
gpio-ks8695.c gpio: ks8695: remove irq_to_gpio function 2016-02-19 00:20:30 +01:00
gpio-loongson.c gpio: convert remaining users to gpiochip_add_data() 2016-01-05 11:21:20 +01:00
gpio-loongson1.c gpio: Loongson1: add Loongson1 GPIO driver 2016-04-09 20:14:35 +02:00
gpio-lp3943.c Revert "gpio: lp3943: Drop pin_used and lp3943_gpio_request/lp3943_gpio_free" 2016-03-09 22:00:27 +07:00
gpio-lpc18xx.c
gpio-lpc32xx.c gpio: lpc32xx: disable broken to_irq support 2016-05-30 09:42:03 +02:00
gpio-lynxpoint.c gpio: lynxpoint: Use devm_gpiochip_add_data() for gpio registration 2016-02-23 20:35:35 +05:30
gpio-max730x.c gpio: max730x: use gpiochip data pointer 2016-01-05 11:21:07 +01:00
gpio-max732x.c gpio: max732x: use gpiochip data pointer 2016-01-05 11:21:07 +01:00
gpio-max7300.c
gpio-max7301.c
gpio-mb86s7x.c gpio: mb86s7x: make explicitly non-modular 2016-03-31 15:00:28 +02:00
gpio-mc9s08dz60.c gpio: mc9s08dz60: make explicitly non-modular 2016-03-31 15:02:09 +02:00
gpio-mc33880.c gpio: mc33880: use gpiochip data pointer 2016-01-05 11:21:07 +01:00
gpio-mcp23s08.c gpio: mcp23s08: Add support for level triggered interrupts 2016-03-31 10:41:50 +02:00
gpio-menz127.c This is the bulk of GPIO changes for kernel cycle v4.7: 2016-05-17 17:39:42 -07:00
gpio-ml-ioh.c gpio: ml-ioh: use gpiochip data pointer 2016-01-05 11:21:08 +01:00
gpio-mm-lantiq.c gpio: mm-lantiq: Do not use gpiochip_get_data() in ltq_mm_save_regs() 2016-01-13 10:21:06 +01:00
gpio-mmio.c gpio: rename gpio-generic.c into gpio-mmio.c 2016-04-29 16:14:32 +02:00
gpio-moxart.c gpio: moxart: make explicitly non-modular 2016-03-31 15:03:13 +02:00
gpio-mpc8xxx.c gpio: mpc8xxx: Slightly update the code for better readability 2016-03-09 10:44:13 +07:00
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: use gpiochip data pointer 2016-01-05 11:21:09 +01:00
gpio-mvebu.c gpio: mvebu: make explicitly non-modular 2016-03-31 15:05:44 +02:00
gpio-mxc.c gpio: mxc: Use devm_gpiochip_add_data() for gpio registration 2016-02-23 20:35:37 +05:30
gpio-mxs.c
gpio-octeon.c gpio: octeon: Constify octeon_gpio_match table 2016-03-30 10:38:51 +02:00
gpio-omap.c gpio: omap: fix irq triggering in smart-idle wakeup mode 2016-04-26 15:56:47 +02:00
gpio-palmas.c gpio: palmas: make explicitly non-modular 2016-04-05 17:02:36 +02:00
gpio-pca953x.c This is the bulk of GPIO changes for kernel cycle v4.7: 2016-05-17 17:39:42 -07:00
gpio-pcf857x.c gpio: pcf857x: Use devm_gpiochip_add_data() for gpio registration 2016-02-23 20:35:39 +05:30
gpio-pch.c gpio: pch: Optimize pch_gpio_get() 2016-01-05 15:46:34 +01:00
gpio-pisosr.c gpio: pisosr: Use gpiod_set_value_cansleep in pisosr_gpio_refresh() 2016-02-25 15:20:46 +01:00
gpio-pl061.c gpio: pl061: implement .get_direction() 2016-04-28 14:36:37 +02:00
gpio-pxa.c gpio: pxa: fix legacy non pinctrl aware builds 2016-04-08 10:10:08 +02:00
gpio-rc5t583.c gpio: rc5t583: make explicitly non-modular 2016-04-05 17:02:35 +02:00
gpio-rcar.c This is the bulk of GPIO changes for kernel cycle v4.7: 2016-05-17 17:39:42 -07:00
gpio-rdc321x.c gpio: rdc321x: Use devm_gpiochip_add_data() for gpio registration 2016-02-23 20:35:41 +05:30
gpio-sa1100.c gpio: convert remaining users to gpiochip_add_data() 2016-01-05 11:21:20 +01:00
gpio-sch.c gpio: sch: Use devm_gpiochip_add_data() for gpio registration 2016-02-23 20:35:41 +05:30
gpio-sch311x.c gpio: sch311x: Use devm_request_region 2016-02-16 00:19:53 +01:00
gpio-sodaville.c gpio: sodaville: make it explicitly non-modular 2016-05-11 13:46:49 +02:00
gpio-spear-spics.c gpio: spear-spics: Use devm_gpiochip_add_data() for gpio registration 2016-02-23 20:35:42 +05:30
gpio-sta2x11.c gpio: sta2x11: make explicitly non-modular 2016-03-31 15:07:40 +02:00
gpio-stmpe.c gpio: stmpe: make it explicitly non-modular 2016-05-11 13:48:03 +02:00
gpio-stp-xway.c gpio: stp-xway: Use devm_gpiochip_add_data() for gpio registration 2016-02-23 20:35:43 +05:30
gpio-sx150x.c gpio: sx150x: use the new open drain callback 2016-04-14 14:03:26 +02:00
gpio-syscon.c gpio: syscon: Use devm_gpiochip_add_data() for gpio registration 2016-02-23 20:35:44 +05:30
gpio-tb10x.c gpio: tb10x: Use devm_gpiochip_add_data() for gpio registration 2016-02-23 20:35:44 +05:30
gpio-tc3589x.c gpio: tc3589x: make explicitly non-modular 2016-04-05 17:02:35 +02:00
gpio-tegra.c gpio: tegra: Implement gpio_get_direction callback 2016-04-30 13:15:10 +02:00
gpio-timberdale.c gpio: timberdale: make it explicitly non-modular 2016-05-11 13:49:11 +02:00
gpio-tpic2810.c gpio: tpic2810: Make sure cached buffer has consistent status with h/w status 2016-03-31 15:14:37 +02:00
gpio-tps6586x.c gpio: tps6586x: make explicitly non-modular 2016-04-05 17:02:37 +02:00
gpio-tps65086.c gpio: tps65086: Add GPO driver for the TPS65086 PMIC 2016-03-16 08:50:33 +00:00
gpio-tps65218.c gpio: tps65218: use the new open drain callback 2016-04-14 14:03:25 +02:00
gpio-tps65910.c gpio: tps65910: make explicitly non-modular 2016-04-05 17:02:37 +02:00
gpio-tps65912.c gpio: tps65912: fix bad merge 2016-03-09 22:02:52 +07:00
gpio-ts4800.c gpio: ts4800: Drop redundant code to set already initialized gpio_chip fields 2016-02-25 15:20:44 +01:00
gpio-ts5500.c gpio: ts5500: Use devm_gpiochip_add_data() for gpio registration 2016-02-23 20:35:49 +05:30
gpio-twl4030.c gpio: twl4030: use gpiochip data pointer 2016-01-05 11:21:16 +01:00
gpio-twl6040.c gpio: twl6040: Use devm_gpiochip_add_data() for gpio registration 2016-02-23 20:35:50 +05:30
gpio-tz1090-pdc.c gpio: tz1090-pdc: use gpiochip data pointer 2016-01-05 11:21:16 +01:00
gpio-tz1090.c gpio: tz1090: use gpiochip data pointer 2016-01-05 11:21:16 +01:00
gpio-ucb1400.c gpio: ucb1400: Use devm_gpiochip_add_data() for gpio registration 2016-02-23 20:35:50 +05:30
gpio-vf610.c gpio: vf610: use gpiochip data pointer 2016-01-05 11:21:17 +01:00
gpio-viperboard.c gpio: viperboard: Use devm_gpiochip_add_data() for gpio registration 2016-02-23 20:35:51 +05:30
gpio-vr41xx.c gpio: convert remaining users to gpiochip_add_data() 2016-01-05 11:21:20 +01:00
gpio-vx855.c gpio: vx855: use the new open drain callback 2016-04-14 14:03:28 +02:00
gpio-wm831x.c gpio: wm831x: use the new open drain callback 2016-04-14 14:03:28 +02:00
gpio-wm8350.c gpio: wm8350: Use devm_gpiochip_add_data() for gpio registration 2016-02-23 20:35:52 +05:30
gpio-wm8994.c gpio: wm8994: use the new open drain callback 2016-04-14 14:03:29 +02:00
gpio-ws16c48.c gpio: ws16c48: Utilize the ISA bus driver 2016-05-02 09:32:04 -07:00
gpio-xgene-sb.c gpio: xgene-sb: Use irq_domain_free_irqs_common() 2016-03-31 10:22:53 +02:00
gpio-xgene.c This is the bulk of GPIO changes for kernel cycle v4.7: 2016-05-17 17:39:42 -07:00
gpio-xilinx.c gpio: xilinx: Do not use gpiochip_get_data() in xgpio_save_regs() 2016-01-07 10:06:56 +01:00
gpio-xlp.c remove lots of IS_ERR_VALUE abuses 2016-05-27 15:26:11 -07:00
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 it explicitly non-modular 2016-05-11 13:50:01 +02:00
gpio-zx.c gpio: zx: make explicitly non-modular 2016-03-31 15:10:25 +02:00
gpio-zynq.c gpio: zynq: Fix the error path 2016-04-09 20:14:36 +02:00
gpiolib-acpi.c gpiolib-acpi: Duplicate con_id string when adding it to the crs lookup list 2016-04-30 13:51:59 +02:00
gpiolib-legacy.c
gpiolib-of.c gpio: of: make it possible to name GPIO lines 2016-05-10 13:43:48 +02:00
gpiolib-sysfs.c gpio: fix abi regression in sysfs 2016-02-25 16:08:45 +01:00
gpiolib.c gpio: drop lock before reading GPIO direction 2016-05-30 17:11:59 +02:00
gpiolib.h gpio: move gpiod_set_array_value_priv() 2016-04-26 10:51:36 +02:00
Kconfig driver core update for 4.7-rc1 2016-05-20 21:26:15 -07:00
Makefile gpio: rename gpio-generic.c into gpio-mmio.c 2016-04-29 16:14:32 +02:00