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3a02dc9747
linux/drivers/gpio
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Kuppuswamy Sathyanarayanan 3a02dc9747 gpio: gpio-wcove: Fix GPIO control register offset calculation 
According to Whiskey Cove PMIC GPIO controller specification, for GPIO
pins 0-12, GPIO input and output register control address range from,

0x4e44-0x4e50 for GPIO outputs control register

0x4e51-0x4e5d for GPIO input control register

But, currently when calculating the GPIO register offsets in to_reg()
function, all GPIO pins in the same bank uses the same GPIO control
register address. This logic is incorrect. This patch fixes this
issue.

This patch also adds support to selectively skip register modification
for virtual GPIOs.

In case of Whiskey Cove PMIC, ACPI code may use up 94 virtual GPIOs.
These virtual GPIOs are used by the ACPI code as means to access various
non GPIO bits of PMIC. So for these virtual GPIOs, we don't need to
manipulate the physical GPIO pin register. A similar patch has been
merged recently by Hans for Crystal Cove PMIC GPIO driver. You can
find more details about it in Commit 9a752b4c9a ("gpio: crystalcove:
Do not write regular gpio registers for virtual GPIOs")

Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Reported-by: Jukka Laitinen <jukka.laitinen@intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-06-29 14:03:51 +02:00
..
devres.c gpiolib: Fix spelling of 'successful' 2017-03-14 10:51:28 +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: 74xx-mmio: Use devm_gpiochip_add_data() for gpio registration 2016-02-23 20:19:42 +05:30
gpio-104-dio-48e.c Annotation of module parameters that specify device settings 2017-05-10 19:13:03 -07:00
gpio-104-idi-48.c Annotation of module parameters that specify device settings 2017-05-10 19:13:03 -07:00
gpio-104-idio-16.c Annotation of module parameters that specify device settings 2017-05-10 19:13:03 -07:00
gpio-adnp.c gpio: set explicit nesting on drivers 2016-11-25 15:12:27 +01:00
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: move header file out of I2C realm 2017-05-29 13:36:45 +02:00
gpio-altera-a10sr.c gpio: altera-a10sr: Set gpio_chip parent property 2017-03-06 14:35:21 +01:00
gpio-altera.c This is the bulk of GPIO changes for the v4.12 kernel cycle: 2017-05-04 12:05:32 -07:00
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: Add support for GPIOs that need to be maintained 2017-05-29 11:09:01 +02:00
gpio-aspeed.c gpio: aspeed: Add open-source and open-drain support 2017-04-24 14:51:57 +02:00
gpio-ath79.c gpio: ath79: make use of raw_spinlock variants 2017-03-16 21:52:08 +01:00
gpio-axp209.c gpio: axp209: use correct register for GPIO input status 2016-11-24 16:19:02 +01:00
gpio-bcm-kona.c gpio: bcm-kona: make use of raw_spinlock variants 2017-03-16 21:52:07 +01:00
gpio-bd9571mwv.c gpio: Add ROHM BD9571MWV-M PMIC GPIO driver 2017-04-28 09:47:46 +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: set explicit nesting on drivers 2016-11-25 15:12:27 +01:00
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: 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: davinci: Handle return value of clk_prepare_enable 2017-05-29 10:37:40 +02:00
gpio-dln2.c pinctrl / gpio: Introduce .set_config() callback for GPIO chips 2017-01-26 15:27:37 +01:00
gpio-dwapb.c gpio: dwapb: fix missing first irq for edgeboth irq type 2017-06-21 09:36:46 +02:00
gpio-em.c
gpio-ep93xx.c pinctrl / gpio: Introduce .set_config() callback for GPIO chips 2017-01-26 15:27:37 +01:00
gpio-etraxfs.c gpio: etraxfs: make use of raw_spinlock variants 2017-03-16 21:52:08 +01:00
gpio-exar.c gpio: exar: Fix reading of directions and values 2017-06-20 10:16:23 +02:00
gpio-f7188x.c gpio: f7188x: Add a missing break 2017-04-28 10:09:16 +02:00
gpio-ftgpio010.c gpio: gemini: rename to match Faraday IP 2017-03-22 09:40:55 +01:00
gpio-ge.c gpio: ge: Use devm_gpiochip_add_data() for gpio registration 2016-02-23 20:35:31 +05:30
gpio-gpio-mm.c Annotate hardware config module parameters in drivers/gpio/ 2017-04-20 12:02:32 +01:00
gpio-grgpio.c
gpio-htc-egpio.c gpio: htc-egpio: read output value from cache 2016-11-13 11:50:22 +01:00
gpio-ich.c gpio: ich: Use devm_request_region 2016-02-16 00:19:53 +01:00
gpio-intel-mid.c gpio: intel-mid: Fix build warning when !CONFIG_PM 2017-01-26 10:00:20 +01:00
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: 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-loongson1.c gpio: loongson1: remove redundant return value check 2016-09-23 15:10:00 +02:00
gpio-loongson.c gpio: convert remaining users to gpiochip_add_data() 2016-01-05 11:21:20 +01:00
gpio-lp873x.c pinctrl / gpio: Introduce .set_config() callback for GPIO chips 2017-01-26 15:27:37 +01:00
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-lp87565.c gpio: lp87565: Add support for GPIO 2017-06-21 09:36:46 +02:00
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: max732x: move header file out of I2C realm 2017-05-23 11:33:59 +02:00
gpio-max7300.c
gpio-max7301.c
gpio-max77620.c pinctrl / gpio: Introduce .set_config() callback for GPIO chips 2017-01-26 15:27:37 +01:00
gpio-mb86s7x.c gpio: mb86s7x: use builtin_platform_driver 2016-11-22 10:16:17 +01:00
gpio-mc9s08dz60.c gpio: mc9s08dz60: make explicitly non-modular 2016-03-31 15:02:09 +02:00
gpio-mc33880.c
gpio-menz127.c pinctrl / gpio: Introduce .set_config() callback for GPIO chips 2017-01-26 15:27:37 +01:00
gpio-merrifield.c gpio: merrifield: Remove unused header 2017-06-16 11:13:11 +02:00
gpio-ml-ioh.c gpio: ml-ioh: check the return value of irq_alloc_generic_chip() 2017-05-29 13:34:22 +02:00
gpio-mm-lantiq.c gpio: update my email address 2016-12-30 09:18:10 +01:00
gpio-mmio.c gpio: mmio: add support for NI 169445 NAND GPIO 2017-03-23 09:49:06 +01:00
gpio-mockup.c gpio: mockup: use devm_kcalloc() where applicable 2017-06-20 09:19:12 +02:00
gpio-mpc8xxx.c gpio: mpc8xxx: Correct irq handler function 2016-10-24 02:20:40 +02:00
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: drop unused MODULE_ tags from non-modular code 2016-08-23 11:22:09 +02:00
gpio-mvebu.c gpio: mvebu: Add support for the Armada 7K/8K SoCs 2017-06-16 11:28:29 +02:00
gpio-mxc.c gpio: mxc: use devm_irq_alloc_descs() 2017-03-15 11:16:37 +01:00
gpio-mxs.c gpio: mxs: use devm_irq_alloc_descs() 2017-03-15 11:16:37 +01:00
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 2017-04-28 09:50:22 +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: move tca9554 from pcf857x to pca953x 2017-04-24 18:27:55 +02:00
gpio-pcf857x.c gpio: pcf857x: move header file out of I2C realm 2017-05-23 11:35:02 +02:00
gpio-pch.c gpio: pch: check the return value of irq_alloc_generic_chip() 2017-05-29 13:33:01 +02:00
gpio-pci-idio-16.c gpio: pci-idio-16: make use of raw_spinlock variants 2017-03-28 11:13:59 +02:00
gpio-pisosr.c gpio: constify gpio_chip structures 2016-09-13 10:35:56 +02:00
gpio-pl061.c gpio: pl061: make use of raw_spinlock variants 2017-03-16 21:52:09 +01:00
gpio-pxa.c gpio: pxa: use devm_irq_alloc_descs() 2017-03-15 11:16:35 +01:00
gpio-rc5t583.c gpio: rc5t583: make explicitly non-modular 2016-04-05 17:02:35 +02:00
gpio-rcar.c gpio: rcar: Fine-grained Runtime PM support 2016-12-28 01:33:02 +01:00
gpio-rdc321x.c gpio: remove redundant owner assignments of drivers 2016-06-07 09:35:16 +02:00
gpio-reg.c gpio: gpio-reg: add irq mapping for gpio-reg users 2017-03-24 14:05:00 +01:00
gpio-sa1100.c gpio: sa1100: implement get_direction method 2017-03-24 14:04:37 +01:00
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: use resource management for irqs 2017-03-15 11:16:36 +01:00
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: check the return value of irq_alloc_generic_chip() 2017-05-29 13:33:42 +02:00
gpio-stmpe.c Bulk GPIO changes for the v4.10 kernel cycle: 2016-12-13 07:54:57 -08:00
gpio-stp-xway.c gpio: update my email address 2016-12-30 09:18:10 +01:00
gpio-syscon.c gpio: syscon: Change the compatibility string 2016-06-08 10:48:17 +02:00
gpio-tb10x.c gpio: tb10x: Use devm_gpiochip_add_data() for gpio registration 2016-02-23 20:35:44 +05:30
gpio-tc3589x.c pinctrl / gpio: Introduce .set_config() callback for GPIO chips 2017-01-26 15:27:37 +01:00
gpio-tegra.c pinctrl / gpio: Introduce .set_config() callback for GPIO chips 2017-01-26 15:27:37 +01:00
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 pinctrl / gpio: Introduce .set_config() callback for GPIO chips 2017-01-26 15:27:37 +01:00
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: ts5500: Use devm_gpiochip_add_data() for gpio registration 2016-02-23 20:35:49 +05:30
gpio-twl4030.c gpio: twl4030: use devm_irq_alloc_descs() 2017-03-15 11:16:32 +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.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: use builtin_platform_driver 2016-11-24 16:19:02 +01:00
gpio-viperboard.c gpio: remove redundant owner assignments of drivers 2016-06-07 09:35:16 +02:00
gpio-vr41xx.c gpio: convert remaining users to gpiochip_add_data() 2016-01-05 11:21:20 +01:00
gpio-vx855.c pinctrl / gpio: Introduce .set_config() callback for GPIO chips 2017-01-26 15:27:37 +01:00
gpio-wcove.c gpio: gpio-wcove: Fix GPIO control register offset calculation 2017-06-29 14:03:51 +02:00
gpio-wm831x.c gpio: wm831x: Add basic device tree support 2017-03-23 11:45:55 +00:00
gpio-wm8350.c gpio: constify gpio_chip structures 2016-09-13 10:35:56 +02:00
gpio-wm8994.c pinctrl / gpio: Introduce .set_config() callback for GPIO chips 2017-01-26 15:27:37 +01:00
gpio-ws16c48.c Annotation of module parameters that specify device settings 2017-05-10 19:13:03 -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 gpio: xgene: mark PM functions as __maybe_unused 2017-03-06 14:35:22 +01:00
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: xlp: Update for ARCH_THUNDER2 2017-03-16 21:52:10 +01:00
gpio-xra1403.c gpio: xra1403: Add EXAR XRA1403 SPI GPIO expander driver 2017-05-22 17:48:41 +02:00
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 use of raw_spinlock variants 2017-03-16 21:52:10 +01:00
gpio-zynq.c gpio: zynq: Clarify quirk and provide helper function 2017-06-16 11:13:12 +02:00
gpiolib-acpi.c gpio: acpi: Split out acpi_gpio_get_irq_resource() helper 2017-05-29 11:22:48 +02:00
gpiolib-devprop.c gpio: gpiolib-devprop: Check chip->parent pointer before dereferencing 2016-10-25 20:23:19 +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: Spelling: s/retures/returns/ 2017-06-16 11:13:10 +02:00
gpiolib-sysfs.c gpio: fix documentation for gpiod_unexport 2016-09-12 14:53:33 +02:00
gpiolib.c gpiolib: remove unused variable 2017-05-31 02:07:29 +02:00
gpiolib.h gpio: acpi: Override GPIO initialization flags 2017-05-29 11:21:44 +02:00
Kconfig gpio: lp87565: Add support for GPIO 2017-06-21 09:36:46 +02:00
Makefile gpio: lp87565: Add support for GPIO 2017-06-21 09:36:46 +02:00