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twx-linux/drivers/gpio
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David Rivshin 198ab40318 gpio: omap: return error if requested debounce time is not possible 
commit 8397744393 upstream.

omap_gpio_debounce() does not validate that the requested debounce
is within a range it can handle. Instead it lets the register value
wrap silently, and always returns success.

This can lead to all sorts of unexpected behavior, such as gpio_keys
asking for a too-long debounce, but getting a very short debounce in
practice.

Fix this by returning -EINVAL if the requested value does not fit into
the register field. If there is no debounce clock available at all,
return -ENOTSUPP.

Fixes: e85ec6c304 ("gpio: omap: fix omap2_set_gpio_debounce")
Signed-off-by: David Rivshin <drivshin@allworx.com>
Acked-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-05-25 15:44:36 +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: Use spi_write() helper instead of open coding
2016-06-23 11:07:12 +02:00
gpio-74xx-mmio.c
…
gpio-104-dio-48e.c
gpio: 104-dio-48e: Fix control port offset computation off-by-one error
2016-06-08 10:08:12 +02:00
gpio-104-idi-48.c
gpio: 104-idi-48: Fix missing spin_lock_init for ack_lock
2016-06-13 14:48:10 +02:00
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-adp5520.c
…
gpio-adp5588.c
…
gpio-altera.c
gpio: altera: fix implicit assumption module.h is present
2016-09-15 14:00:47 +02:00
gpio-amd8111.c
…
gpio-amdpt.c
gpio: amdpt: Add a new ACPI HID
2016-03-30 10:38:51 +02:00
gpio-arizona.c
gpio: constify gpio_chip structures
2016-09-13 10:35:56 +02:00
gpio-aspeed.c
gpio: aspeed: remove redundant return value check
2016-09-23 15:11:09 +02:00
gpio-ath79.c
gpio: ath79: Fix module autoload
2016-10-24 00:23:05 +02:00
gpio-axp209.c
gpio: axp209: Implement get_direction
2016-09-23 15:13:04 +02:00
gpio-bcm-kona.c
gpio: constify gpio_chip structures
2016-09-13 10:35:56 +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: Remove board support
2016-06-08 10:49:58 +02:00
gpio-crystalcove.c
…
gpio-cs5535.c
…
gpio-da9052.c
gpio: constify gpio_chip structures
2016-09-13 10:35:56 +02:00
gpio-da9055.c
gpio: constify gpio_chip structures
2016-09-13 10:35:56 +02:00
gpio-davinci.c
…
gpio-dln2.c
…
gpio-dwapb.c
gpio: dwapb: add missing fwnode_handle_put() in dwapb_gpio_get_pdata()
2016-07-22 15:30:42 +02:00
gpio-em.c
…
gpio-ep93xx.c
…
gpio-etraxfs.c
…
gpio-f7188x.c
gpio: f7188x: use gpiochip_get_data instead of container_of
2016-09-18 13:35:06 +02:00
gpio-ge.c
…
gpio-gpio-mm.c
gpio: Add GPIO support for the Diamond Systems GPIO-MM
2016-08-11 13:37:25 +02:00
gpio-grgpio.c
…
gpio-htc-egpio.c
mfd/gpio: Move HTC GPIO driver to GPIO subsystem
2016-09-28 09:28:34 -07:00
gpio-ich.c
…
gpio-intel-mid.c
gpio: intel-mid: Sort header block alphabetically
2016-07-22 15:30:40 +02:00
gpio-iop.c
gpio: iop: Use generic GPIO MMIO functions for driver
2016-09-12 15:28:18 +02:00
gpio-it87.c
gpio: constify gpio_chip structures
2016-09-13 10:35:56 +02:00
gpio-janz-ttl.c
…
gpio-kempld.c
…
gpio-ks8695.c
…
gpio-loongson1.c
gpio: loongson1: remove redundant return value check
2016-09-23 15:10:00 +02:00
gpio-loongson.c
…
gpio-lp873x.c
gpio: constify gpio_chip structures
2016-09-13 10:35:56 +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: constify gpio_chip structures
2016-09-13 10:35:56 +02:00
gpio-lpc32xx.c
gpio: lpc32xx: remove unused platform data file
2016-09-12 14:23:37 +02:00
gpio-lynxpoint.c
gpio: lynxpoint: avoid potential warning on error path
2016-06-23 11:07:14 +02:00
gpio-max730x.c
gpio: max730x: set gpiochip data pointer before using it
2016-08-10 15:40:44 +02:00
gpio-max732x.c
…
gpio-max7300.c
…
gpio-max7301.c
…
gpio-max77620.c
gpio: max77620: get gpio value based on direction
2016-07-04 11:39:38 +02:00
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-mcp23s08.c
gpio: mcp23s08: make driver depend on OF_GPIO
2016-09-08 00:42:57 +02:00
gpio-menz127.c
gpio: remove redundant owner assignments of drivers
2016-06-07 09:35:16 +02:00
gpio-merrifield.c
gpio: merrifield: Protect irq_ack() and gpio_set() by lock
2016-07-22 15:30:42 +02:00
gpio-ml-ioh.c
…
gpio-mm-lantiq.c
…
gpio-mmio.c
gpio: mmio: add brcm,bcm6345 support
2016-08-11 16:17:05 +02:00
gpio-mockup.c
gpio/mockup: add virtual gpio device
2016-09-26 11:47:14 -07:00
gpio-moxart.c
gpio: moxart: make explicitly non-modular
2016-03-31 15:03:13 +02:00
gpio-mpc8xxx.c
gpio: mpc8xxx: Correct irq handler function
2016-10-24 02:20:40 +02:00
gpio-mpc5200.c
…
gpio-msic.c
gpio: msic: drop unused MODULE_ tags from non-modular code
2016-08-23 11:22:09 +02:00
gpio-mvebu.c
gpio/mvebu: Use irq_domain_add_linear
2016-11-01 19:31:49 +01:00
gpio-mxc.c
Merge tag 'gpio-v4.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
2016-10-05 11:49:09 -07:00
gpio-mxs.c
gpio: mxs: Unmap region obtained by of_iomap
2016-10-20 14:14:11 +02:00
gpio-octeon.c
gpio: octeon: Constify octeon_gpio_match table
2016-03-30 10:38:51 +02:00
gpio-omap.c
gpio: omap: return error if requested debounce time is not possible
2017-05-25 15:44:36 +02:00
gpio-palmas.c
gpio: palmas: fix implicit assumption module.h is present
2016-09-15 13:57:43 +02:00
gpio-pca953x.c
gpio: pca953x: Move memcpy into mutex lock for set multiple
2016-11-08 10:29:47 +01:00
gpio-pcf857x.c
gpio: pcf857x: restore the initial line state of all pcf lines
2016-06-07 09:35:16 +02:00
gpio-pch.c
…
gpio-pisosr.c
gpio: constify gpio_chip structures
2016-09-13 10:35:56 +02:00
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
gpio: rcar: Add r8a7796 (R-Car M3-W) support
2016-09-08 01:15:46 +02:00
gpio-rdc321x.c
gpio: remove redundant owner assignments of drivers
2016-06-07 09:35:16 +02:00
gpio-sa1100.c
gpio: sa1100: fix irq probing for ucb1x00
2016-09-08 00:42:57 +02:00
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: make it explicitly non-modular
2016-05-11 13:46:49 +02:00
gpio-spear-spics.c
gpio: spear-spics: drop unused MODULE_ tags from non-modular code
2016-08-23 11:23:41 +02:00
gpio-sta2x11.c
gpio: sta2x11: make explicitly non-modular
2016-03-31 15:07:40 +02:00
gpio-stmpe.c
gpio: stmpe: fix interrupt handling bug
2017-01-09 08:32:17 +01:00
gpio-stp-xway.c
…
gpio-sx150x.c
gpio: sx150x: fix implicit assumption module.h is present
2016-09-15 13:59:02 +02:00
gpio-syscon.c
gpio: syscon: Change the compatibility string
2016-06-08 10:48:17 +02:00
gpio-tb10x.c
…
gpio-tc3589x.c
gpio: tc3589x: fix up .get_direction()
2016-11-15 10:33:30 +01:00
gpio-tegra.c
gpio: tegra: Make lockdep class file-scoped
2016-06-22 17:58:07 +02:00
gpio-timberdale.c
gpio: timberdale: make it explicitly non-modular
2016-05-11 13:49:11 +02:00
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
gpio: tps65218: use devm_gpiochip_add_data() for gpio registration
2016-09-18 13:18:13 +02:00
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-ts4800.c
gpio: ts4800: Fix module autoload
2016-10-21 14:55:07 +02:00
gpio-ts4900.c
gpio: constify gpio_chip structures
2016-09-13 10:35:56 +02:00
gpio-ts5500.c
…
gpio-twl4030.c
gpio: constify gpio_chip structures
2016-09-13 10:35:56 +02:00
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.c
…
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: drop unused MODULE_ tags from non-modular code
2016-08-23 11:24:40 +02:00
gpio-viperboard.c
gpio: remove redundant owner assignments of drivers
2016-06-07 09:35:16 +02:00
gpio-vr41xx.c
…
gpio-vx855.c
gpio: vx855: use the new open drain callback
2016-04-14 14:03:28 +02:00
gpio-wcove.c
gpio: wcove: fix implicit assumption module.h is present
2016-09-15 14:03:33 +02:00
gpio-wm831x.c
gpio: constify gpio_chip structures
2016-09-13 10:35:56 +02:00
gpio-wm8350.c
gpio: constify gpio_chip structures
2016-09-13 10:35:56 +02:00
gpio-wm8994.c
gpio: constify gpio_chip structures
2016-09-13 10:35:56 +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
Merge tag 'gpio-v4.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
2016-05-17 17:39:42 -07:00
gpio-xilinx.c
gpio: xilinx: Add support to set multiple GPIO at once
2016-06-08 10:33:45 +02:00
gpio-xlp.c
gpio: Add ACPI support for XLP GPIO controller
2016-06-08 10:54:13 +02:00
gpio-xtensa.c
…
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: Added zynq specific check for special pins on bank zero
2016-09-23 15:26:20 +02:00
gpiolib-acpi.c
ACPI / gpio: do not fall back to parsing _CRS when we get a deferral
2017-04-12 12:41:12 +02:00
gpiolib-legacy.c
Revert "gpiolib: Split GPIO flags parsing and GPIO configuration"
2016-07-04 16:51:29 +02:00
gpiolib-of.c
gpio: of: fix GPIO drivers with multiple gpio_chip for a single node
2016-10-31 21:23:44 +01:00
gpiolib-sysfs.c
gpio: fix documentation for gpiod_unexport
2016-09-12 14:53:33 +02:00
gpiolib.c
gpio: Move freeing of GPIO hogs before numbing of the device
2017-01-19 20:18:00 +01:00
gpiolib.h
gpio: add missing static inline
2016-10-03 23:38:11 +02:00
Kconfig
gpio: Remove GPIO_DEVRES option
2016-11-16 20:46:32 +01:00
Makefile
gpio: Remove GPIO_DEVRES option
2016-11-16 20:46:32 +01:00