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b5cf3fd827
linux/drivers/gpio
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Keerthy b5cf3fd827 gpio: davinci: Redesign driver to accommodate ngpios in one gpio chip 
The Davinci GPIO driver is implemented to work with one monolithic
Davinci GPIO platform device which may have up to Y(144) gpios.
The Davinci GPIO driver instantiates number of GPIO chips with
max 32 gpio pins per each during initialization and one IRQ domain.
So, the current GPIO's  opjects structure is:

<platform device> Davinci GPIO controller
 |- <gpio0_chip0> ------|
 ...                    |--- irq_domain (hwirq [0..143])
 |- <gpio0_chipN> ------|

Current driver creates one chip for every 32 GPIOs in a controller.
This was a limitation earlier now there is no need for that. Hence
redesigning the driver to create one gpio chip for all the ngpio
in the controller.

|- <gpio0_chip0> ------|--- irq_domain (hwirq [0..143]).

The previous discussion on this can be found here:
https://www.spinics.net/lists/linux-omap/msg132869.html

Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-01-26 10:00:21 +01:00
..
devres.c gpio: devres: Use global array of gpio suffixes 2017-01-09 19:56:58 +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 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: 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: Use devm_gpiochip_add_data() for gpio registration 2016-02-23 20:34:24 +05:30
gpio-altera-a10sr.c gpio: altera-a10sr: Drop unnecessary gpiochip_remove 2016-10-25 13:58:42 +02:00
gpio-altera.c gpio: altera: fix implicit assumption module.h is present 2016-09-15 14:00:47 +02:00
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: Tidy up probe error path 2016-12-07 15:23:38 +01:00
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: use correct register for GPIO input status 2016-11-24 16:19:02 +01:00
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: bt8xx: use gpiochip data pointer 2016-01-05 11:21:03 +01:00
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: Redesign driver to accommodate ngpios in one gpio chip 2017-01-26 10:00:21 +01:00
gpio-dln2.c gpio: simplify adding threaded interrupts 2016-11-25 15:12:27 +01:00
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: em: use gpiochip data pointer 2016-01-05 11:21:05 +01:00
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: etraxfs: use builtin_platform_driver 2016-11-22 10:14:22 +01:00
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: ge: Use devm_gpiochip_add_data() for gpio registration 2016-02-23 20:35:31 +05:30
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: generic: factor into gpio_chip struct 2016-01-05 11:21:00 +01:00
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 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: simplify adding threaded interrupts 2016-11-25 15:12:27 +01:00
gpio-max7300.c gpio: Drop owner assignment from i2c_driver 2015-11-30 09:31:00 +01:00
gpio-max7301.c
gpio-max77620.c gpio: max77620: add compatible string to device id list 2016-11-16 20:52:13 +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: mc33880: use gpiochip data pointer 2016-01-05 11:21:07 +01:00
gpio-mcp23s08.c gpio: simplify adding threaded interrupts 2016-11-25 15:12:27 +01:00
gpio-menz127.c gpio: remove redundant owner assignments of drivers 2016-06-07 09:35:16 +02:00
gpio-merrifield.c gpio: merrifield: Implement gpio_get_direction callback 2016-12-07 15:23:40 +01:00
gpio-ml-ioh.c gpio: ml-ioh: use gpiochip data pointer 2016-01-05 11:21:08 +01:00
gpio-mm-lantiq.c gpio: update my email address 2016-12-30 09:18:10 +01:00
gpio-mmio.c gpio: mmio: add brcm,bcm6345 support 2016-08-11 16:17:05 +02:00
gpio-mockup.c gpio: mockup: coding style fixes 2016-12-28 14:13:38 +01:00
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: 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: fix warning when building on 64-bit 2017-01-11 16:47:04 +01:00
gpio-mxc.c This is the bulk of GPIO changes for the v4.9 series: 2016-10-05 11:49:09 -07:00
gpio-mxs.c Bulk GPIO changes for the v4.10 kernel cycle: 2016-12-13 07:54:57 -08:00
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: fix implicit assumption module.h is present 2016-09-15 13:57:43 +02:00
gpio-pca953x.c gpio: pca953x: Add optional reset gpio control 2017-01-11 16:35:23 +01:00
gpio-pcf857x.c gpio: simplify adding threaded interrupts 2016-11-25 15:12:27 +01:00
gpio-pch.c gpio: pch: Optimize pch_gpio_get() 2016-01-05 15:46:34 +01:00
gpio-pisosr.c gpio: constify gpio_chip structures 2016-09-13 10:35:56 +02:00
gpio-pl061.c gpio: pl061: delete platform data handling 2016-12-07 15:22:50 +01:00
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: 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-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 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 Bulk GPIO changes for the v4.10 kernel cycle: 2016-12-13 07:54:57 -08:00
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 mfd: tps65218: Remove redundant read wrapper 2016-10-26 10:30:02 +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: 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-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 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 gpio: vx855: use the new open drain callback 2016-04-14 14:03:28 +02:00
gpio-wcove.c gpio: set explicit nesting on drivers 2016-11-25 15:12:27 +01:00
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 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: 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: 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: Added zynq specific check for special pins on bank zero 2016-09-23 15:26:20 +02:00
gpiolib-acpi.c gpiolib: Update documentation of struct acpi_gpio_info 2017-01-11 12:09:36 +01:00
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: Add support for multiple GPIOs in a single GPIO hog 2016-12-30 09:26:54 +01:00
gpiolib-sysfs.c gpio: fix documentation for gpiod_unexport 2016-09-12 14:53:33 +02:00
gpiolib.c gpio: Remove impossible checks on container_of() result 2017-01-11 16:01:27 +01:00
gpiolib.h gpiolib: Update documentation of struct acpi_gpio_info 2017-01-11 12:09:36 +01:00
Kconfig Bulk GPIO changes for the v4.10 kernel cycle: 2016-12-13 07:54:57 -08:00
Makefile Bulk GPIO changes for the v4.10 kernel cycle: 2016-12-13 07:54:57 -08:00