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linux/drivers/gpio
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Maxim Kiselev 81c2472bcf gpio: pcf857x: Fix missing first interrupt 
commit a8002a35935aaefcd6a42ad3289f62bab947f2ca upstream.

If no n_latch value will be provided at driver probe then all pins will
be used as an input:

    gpio->out = ~n_latch;

In that case initial state for all pins is "one":

    gpio->status = gpio->out;

So if pcf857x IRQ happens with change pin value from "zero" to "one"
then we miss it, because of "one" from IRQ and "one" from initial state
leaves corresponding pin unchanged:
change = (gpio->status ^ status) & gpio->irq_enabled;

The right solution will be to read actual state at driver probe.

Cc: stable@vger.kernel.org
Fixes: 6e20a0a429bd ("gpio: pcf857x: enable gpio_to_irq() support")
Signed-off-by: Maxim Kiselev <bigunclemax@gmail.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-04 10:26:49 +01:00
..
gpio-74x164.c
gpio: 74x164: Convert to use SPDX identifier
2019-03-26 18:38:07 +01:00
gpio-74xx-mmio.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
gpio-104-dio-48e.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174
2019-05-30 11:26:41 -07:00
gpio-104-idi-48.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174
2019-05-30 11:26:41 -07:00
gpio-104-idio-16.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174
2019-05-30 11:26:41 -07:00
gpio-adnp.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
gpio-adp5520.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 149
2019-05-30 11:25:18 -07:00
gpio-adp5588.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 149
2019-05-30 11:25:18 -07:00
gpio-altera-a10sr.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201
2019-05-30 11:29:52 -07:00
gpio-altera.c
gpio: altera: Pass irqchip when adding gpiochip
2019-07-03 10:24:12 +02:00
gpio-amd8111.c
…
gpio-amd-fch.c
drivers: gpio: amd-fch: make resource struct const
2019-07-03 10:10:32 +02:00
gpio-amdpt.c
Bulk GPIO changes for the v5.3 kernel cycle:
2019-07-09 09:07:00 -07:00
gpio-arizona.c
gpio: arizona: put pm_runtime in case of failure
2020-07-29 10:18:26 +02:00
gpio-aspeed.c
gpio: aspeed: fix ast2600 bank properties
2020-10-07 08:01:29 +02:00
gpio-ath79.c
Bulk GPIO changes for the v5.3 kernel cycle:
2019-07-09 09:07:00 -07:00
gpio-bcm-kona.c
gpio: bcm-kona: Fix return value of bcm_kona_gpio_probe()
2020-06-03 08:21:21 +02:00
gpio-bd9571mwv.c
…
gpio-bd70528.c
gpio: bd70528: Use correct unit for debounce times
2019-11-12 11:18:52 +01:00
gpio-brcmstb.c
gpio: Remove dev_err() usage after platform_get_irq()
2019-08-05 13:25:34 +02:00
gpio-bt8xx.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61
2019-05-24 17:36:45 +02:00
gpio-cadence.c
gpio: cadence: Pass irqchip when adding gpiochip
2019-08-15 09:44:19 +02:00
gpio-clps711x.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
gpio-creg-snps.c
gpio: creg-snps: use devm_platform_ioremap_resource() to simplify code
2019-09-11 14:50:02 +01:00
gpio-crystalcove.c
gpio: crystalcove: Convert to use SPDX identifier
2019-02-08 15:55:40 +02:00
gpio-cs5535.c
docs: driver-model: move it to the driver-api book
2019-07-15 11:03:02 -03:00
gpio-da9052.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
gpio-da9055.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
gpio-davinci.c
gpio: davinci: silence error prints in case of EPROBE_DEFER
2019-07-15 11:52:34 +02:00
gpio-dln2.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 372
2019-06-05 17:37:10 +02:00
gpio-dwapb.c
gpio: dwapb: Append MODULE_ALIAS for platform driver
2020-06-24 17:50:21 +02:00
gpio-eic-sprd.c
gpio: eic-sprd: break loop when getting NULL device resource
2020-12-30 11:50:55 +01:00
gpio-em.c
gpio: em: use a helper variable for &pdev->dev
2019-07-22 14:40:07 +02:00
gpio-ep93xx.c
gpio: ep93xx: Fix single irqchip with multi gpiochips
2021-02-17 10:35:14 +01:00
gpio-exar.c
gpio: exar: Fix bad handling for ida_simple_get error path
2020-06-03 08:21:19 +02:00
gpio-f7188x.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
gpio-ftgpio010.c
gpio: ftgpio: Fix an error handling path in 'ftgpio_gpio_probe()'
2019-08-23 12:02:34 +02:00
gpio-ge.c
gpio: ge: Fix build warning
2018-05-16 14:35:24 +02:00
gpio-gpio-mm.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174
2019-05-30 11:26:41 -07:00
gpio-grgpio.c
gpio: gpio-grgpio: fix possible sleep-in-atomic-context bugs in grgpio_irq_map/unmap()
2020-02-24 08:36:26 +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: Pass irqchip when adding gpiochip
2019-08-15 09:57:29 +02:00
gpio-htc-egpio.c
gpio: htc-egpio: Remove unused exported htc_egpio_get_wakeup_irq()
2019-09-12 10:07:44 +01:00
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: Move hardware initialization to callback
2019-10-15 01:18:51 +02:00
gpio-iop.c
Merge branch 'i2c/for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
2019-07-15 21:10:39 -07:00
gpio-it87.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 300
2019-06-05 17:37:00 +02:00
gpio-ixp4xx.c
gpio: updates for v5.4
2019-09-03 16:04:19 +02:00
gpio-janz-ttl.c
Bulk GPIO changes for the v5.3 kernel cycle:
2019-07-09 09:07:00 -07:00
gpio-kempld.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 294
2019-06-05 17:36:38 +02:00
gpio-loongson1.c
drivers: gpio: loongon1: use devm_platform_ioremap_resource()
2019-04-05 00:04:26 +07:00
gpio-loongson.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
gpio-lp873x.c
…
gpio-lp3943.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 372
2019-06-05 17:37:10 +02:00
gpio-lp87565.c
…
gpio-lpc18xx.c
drivers: gpio: lpc18xx: use devm_platform_ioremap_resource()
2019-04-05 00:04:26 +07:00
gpio-lpc32xx.c
gpio: lpc32xx: allow building on non-lpc32xx targets
2019-08-15 21:33:07 +02:00
gpio-lynxpoint.c
gpio: lynxpoint: Setup correct IRQ handlers
2020-01-04 19:18:20 +01:00
gpio-madera.c
gpio: madera: Add support for Cirrus Logic CS47L92
2019-08-05 11:45:24 +02:00
gpio-max730x.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
gpio-max732x.c
Bulk GPIO changes for the v5.3 kernel cycle:
2019-07-09 09:07:00 -07:00
gpio-max3191x.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
gpio-max7300.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
gpio-max7301.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
gpio-max77620.c
gpio: max77620: Fixup debounce delays
2019-11-12 11:13:54 +01:00
gpio-max77650.c
gpio: max77650: add MODULE_ALIAS()
2019-07-29 00:03:52 +02:00
gpio-mb86s7x.c
gpiolib: acpi: Split ACPI stuff to gpiolib-acpi.h
2019-07-31 00:57:21 +02:00
gpio-mc9s08dz60.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
2019-05-30 11:26:37 -07:00
gpio-mc33880.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 176
2019-05-30 11:29:19 -07:00
gpio-menz127.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441
2019-06-05 17:37:17 +02:00
gpio-merrifield.c
Revert "gpio: merrifield: Pass irqchip when adding gpiochip"
2019-11-03 23:41:11 +01:00
gpio-ml-ioh.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 167
2019-05-30 11:26:39 -07:00
gpio-mlxbf.c
gpio: mlxbf: remove unused including <linux/version.h>
2019-04-08 08:47:06 +02:00
gpio-mm-lantiq.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
gpio-mmio.c
gpio: mmio: Drop bgpio_dir_inverted
2019-04-08 11:17:43 +02:00
gpio-mockup.c
gpio: mockup: fix resource leak in error path
2020-10-07 08:01:24 +02:00
gpio-moxtet.c
drivers: gpio: Add support for GPIOs over Moxtet bus
2019-08-14 15:30:56 +02:00
gpio-mpc8xxx.c
gpio: mpc8xxx: Add platform device to gpiochip->parent
2020-01-17 19:49:03 +01:00
gpio-mpc5200.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333
2019-06-05 17:37:06 +02:00
gpio-msic.c
gpio: msic: Convert to use SPDX identifier
2019-02-08 15:55:41 +02:00
gpio-mt7621.c
gpio: mt7621: Pass irqchip when adding gpiochip
2019-08-23 12:05:06 +02:00
gpio-mvebu.c
gpio: mvebu: fix pwm .get_state period calculation
2021-01-30 13:54:09 +01:00
gpio-mxc.c
gpio: mxc: Only get the second IRQ when there is more than one IRQ
2020-01-04 19:16:27 +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
drivers: gpio: octeon: use devm_platform_ioremap_resource()
2019-04-05 00:04:27 +07:00
gpio-omap.c
Bulk GPIO changes for the v5.3 kernel cycle:
2019-07-09 09:07:00 -07:00
gpio-palmas.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201
2019-05-30 11:29:52 -07:00
gpio-pca953x.c
gpio: pca953x: disable regmap locking for automatic address incrementing
2020-07-22 09:33:18 +02:00
gpio-pcf857x.c
gpio: pcf857x: Fix missing first interrupt
2021-03-04 10:26:49 +01:00
gpio-pch.c
gpio: pch: Use dev_get_drvdata
2019-07-23 18:59:05 +03:00
gpio-pci-idio-16.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174
2019-05-30 11:26:41 -07:00
gpio-pcie-idio-24.c
gpio: pcie-idio-24: Enable PEX8311 interrupts
2020-11-18 19:20:31 +01:00
gpio-pisosr.c
gpio-pisosr: add support for get_multiple
2018-07-29 21:55:33 +02:00
gpio-pl061.c
Bulk GPIO changes for the v5.3 kernel cycle:
2019-07-09 09:07:00 -07:00
gpio-pmic-eic-sprd.c
gpio: Remove dev_err() usage after platform_get_irq()
2019-08-05 13:25:34 +02:00
gpio-pxa.c
gpio: pxa: Fix return value of pxa_gpio_probe()
2020-06-03 08:21:21 +02:00
gpio-raspberrypi-exp.c
gpio: raspberrypi-exp: decrease refcount on firmware dt node
2018-12-17 15:28:30 +01:00
gpio-rc5t583.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201
2019-05-30 11:29:52 -07:00
gpio-rcar.c
gpio: rcar: Fix runtime PM imbalance on error
2020-10-01 13:18:04 +02:00
gpio-rdc321x.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61
2019-05-24 17:36:45 +02:00
gpio-reg.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 233
2019-06-19 17:09:06 +02:00
gpio-sa1100.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +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
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
gpio-sch.c
gpio: sch: Remove write-only core_base
2019-04-23 13:08:33 +02:00
gpio-siox.c
gpio: siox: explicitly support only threaded irqs
2020-10-07 08:01:23 +02:00
gpio-sodaville.c
gpio: sodaville: Convert to use SPDX identifier
2018-12-07 17:34:08 +02:00
gpio-spear-spics.c
drivers: gpio: spear-spics: use devm_platform_ioremap_resource()
2019-04-05 00:04:27 +07:00
gpio-sprd.c
gpio: sprd: Clear interrupt when setting the type as edge
2020-10-07 08:01:27 +02:00
gpio-sta2x11.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333
2019-06-05 17:37:06 +02:00
gpio-stmpe.c
gpio: Initialize the irqchip valid_mask with a callback
2019-09-11 01:09:37 +01:00
gpio-stp-xway.c
Bulk GPIO changes for the v5.3 kernel cycle:
2019-07-09 09:07:00 -07:00
gpio-syscon.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
gpio-tb10x.c
gpio: Remove dev_err() usage after platform_get_irq()
2019-08-05 13:25:34 +02:00
gpio-tc3589x.c
gpio: tc35894: fix up tc35894 interrupt configuration
2020-10-07 08:01:24 +02:00
gpio-tegra186.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 233
2019-06-19 17:09:06 +02:00
gpio-tegra.c
gpio: tegra: mask GPIO IRQs during IRQ shutdown
2020-06-03 08:21:09 +02:00
gpio-thunderx.c
Revert "gpio: thunderx: Switch to GPIOLIB_IRQCHIP"
2020-01-23 08:22:29 +01:00
gpio-timberdale.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 176
2019-05-30 11:29:19 -07:00
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
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 111
2019-05-24 17:39:01 +02:00
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-tqmx86.c
gpio: Initialize the irqchip valid_mask with a callback
2019-09-11 01:09:37 +01:00
gpio-ts4800.c
drivers: gpio: ts4800: use devm_platform_ioremap_resource()
2019-04-05 00:04:28 +07:00
gpio-ts4900.c
gpio: ts4900: Use of_device_get_match_data()
2018-05-16 14:35:24 +02:00
gpio-ts5500.c
gpio: ts5500: 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
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
gpio-uniphier.c
drivers: gpio: uniphier: use devm_platform_ioremap_resource()
2019-04-05 00:04:28 +07:00
gpio-vf610.c
gpio: vf610: Pass irqchip when adding gpiochip
2019-08-23 09:41:18 +02:00
gpio-viperboard.c
gpio: viperboard: Replace 'unsigned' with 'unsigned int'
2019-08-05 11:26:58 +02:00
gpio-vr41xx.c
gpio: vr41xx: Use devm_platform_ioremap_resource()
2019-06-27 15:56:51 +01:00
gpio-vx855.c
gpio: vx855: Cut down on boilerplate
2018-09-17 10:55:24 -07:00
gpio-wcove.c
gpio: wcove: Convert to use SPDX identifier
2019-02-08 15:55:41 +02:00
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
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174
2019-05-30 11:26:41 -07:00
gpio-xgene-sb.c
gpiolib: acpi: Split ACPI stuff to gpiolib-acpi.h
2019-07-31 00:57:21 +02:00
gpio-xgene.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234
2019-06-19 17:09:07 +02:00
gpio-xilinx.c
gpio: xilinx: Fix bug where the wrong GPIO register is written to
2020-02-19 19:53:02 +01:00
gpio-xlp.c
gpio: xlp: Pass irqchip when adding gpiochip
2019-08-15 09:55:07 +02:00
gpio-xra1403.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201
2019-05-30 11:29:52 -07:00
gpio-xtensa.c
gpio: xtensa: fix driver build
2020-01-09 10:19:59 +01:00
gpio-zevio.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
gpio-zx.c
gpio: zx: Pass irqchip when adding gpiochip
2019-08-23 09:40:44 +02:00
gpio-zynq.c
gpio: zynq: fix reference leak in zynq_gpio functions
2020-12-30 11:50:53 +01:00
gpiolib-acpi.c
gpiolib: acpi: Add quirk to ignore EC wakeups on HP x2 10 CHT + AXP288 model
2020-04-02 15:11:01 +02:00
gpiolib-acpi.h
gpiolib: acpi: make acpi_can_fallback_to_crs() static
2019-09-10 11:34:20 +01:00
gpiolib-devprop.c
gpiolib: devprop: Fix syntax error
2019-04-08 11:20:12 +02:00
gpiolib-devres.c
gpio: devres: Switch to EXPORT_SYMBOL_GPL()
2019-09-11 14:47:39 +01:00
gpiolib-legacy.c
gpio: Use SPDX header for core library
2018-09-25 09:08:48 +02:00
gpiolib-of.c
mmc: core: Rework wp-gpio handling
2020-02-19 19:53:10 +01:00
gpiolib-of.h
gpio: of: Make of_get_named_gpiod_flags() private
2019-09-11 14:45:01 +01:00
gpiolib-sysfs.c
gpio: Use SPDX header for core library
2018-09-25 09:08:48 +02:00
gpiolib.c
gpio: fix locking open drain IRQ lines
2020-06-03 08:21:28 +02:00
gpiolib.h
gpiolib: acpi: Split ACPI stuff to gpiolib-acpi.h
2019-07-31 00:57:21 +02:00
Kconfig
gpio: max77620: Add missing dependency on GPIOLIB_IRQCHIP
2020-02-01 09:34:45 +00:00
Makefile
ARM: SoC driver updates for v5.4
2019-09-16 15:52:38 -07:00
sgpio-aspeed.c
gpio/aspeed-sgpio: don't enable all interrupts by default
2020-10-07 08:01:28 +02:00
TODO
gpio: Add GPIOLIB_IRQCHIP cleanup to TODO
2019-06-14 10:16:15 +02:00