Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-04 11:04:38 +00:00
Code Issues Packages Projects Releases Wiki Activity
9a2c1c3b91
linux/drivers/pinctrl
History
Tomasz Figa 9a2c1c3b91 pinctrl: samsung: Allow grouping multiple pinmux/pinconf nodes 
One of remaining limitations of current pinctrl-samsung driver was
the inability to parse multiple pinmux/pinconf group nodes grouped
inside a single device tree node. It made defining groups of pins for
single purpose, but with different parameters very inconvenient.

This patch implements Tegra-like support for grouping multiple pinctrl
groups inside one device tree node, by completely changing the way
pin groups and functions are parsed from device tree. The code creating
pinctrl maps from DT nodes has been borrowed from pinctrl-tegra, while
the initial creation of groups and functions has been completely
rewritten with following assumptions:
 - each group consists of just one pin and does not depend on data
   from device tree,
 - each function is represented by a device tree child node of the
   pin controller, which in turn can contain multiple child nodes
   for pins that need to have different configuration values.

Device Tree bindings are fully backwards compatible. New functionality
can be used by defining a new pinctrl group consisting of several child
nodes, as on following example:

	sd4_bus8: sd4-bus-width8 {
		part-1 {
			samsung,pins = "gpk0-3", "gpk0-4",
					"gpk0-5", "gpk0-6";
			samsung,pin-function = <3>;
			samsung,pin-pud = <3>;
			samsung,pin-drv = <3>;
		};
		part-2 {
			samsung,pins = "gpk1-3", "gpk1-4",
					"gpk1-5", "gpk1-6";
			samsung,pin-function = <4>;
			samsung,pin-pud = <4>;
			samsung,pin-drv = <3>;
		};
	};

Tested on Exynos4210-Trats board and a custom Exynos4212-based one.

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Cc: devicetree@vger.kernel.org
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-07-11 14:08:37 +02:00
..
berlin pinctrl: berlin: Use devm_ioremap_resource() 2014-05-27 16:03:24 +02:00
mvebu pinctrl: mvebu: new driver for Orion platforms 2014-04-24 15:09:35 +02:00
sh-pfc sh-pfc: r8a7791: add CAN pin groups 2014-07-11 14:08:36 +02:00
sirf pinctrl: avoid duplicated calling enable_pinmux_setting for a pin 2014-07-11 14:08:26 +02:00
spear pinctrl: avoid duplicated calling enable_pinmux_setting for a pin 2014-07-11 14:08:26 +02:00
sunxi pinctrl: sunxi: Add A23 R_PIO controller support 2014-07-11 14:08:30 +02:00
vt8500 pinctrl: avoid duplicated calling enable_pinmux_setting for a pin 2014-07-11 14:08:26 +02:00
core.c pinctrl: avoid duplicated calling enable_pinmux_setting for a pin 2014-07-11 14:08:26 +02:00
core.h pinctrl: move subsystem mutex to pinctrl_dev struct 2013-04-26 17:01:35 +02:00
devicetree.c pinctrl: Quiet logging about missing DT nodes when not using DT 2014-02-24 10:44:54 +01:00
devicetree.h
Kconfig pinctrl: Add i.MX1 pincontrol driver 2014-07-11 14:08:25 +02:00
Makefile pinctrl: Add i.MX1 pincontrol driver 2014-07-11 14:08:25 +02:00
pinconf-generic.c pinctrl: Enable "power-source" to be extracted from DT files 2014-05-28 10:16:35 +02:00
pinconf.c pinctrl: pinconf: remove warning: unused variable 'ops' 2013-12-13 13:55:15 +01:00
pinconf.h pinctrl: add function to parse generic pinconfig properties from a dt node 2013-06-16 11:57:32 +02:00
pinctrl-ab8500.c pinctrl: ab8500: Staticize some symbols 2013-04-09 09:54:00 +02:00
pinctrl-ab8505.c pinctrl: ab8505: Staticize some symbols 2013-04-09 09:59:42 +02:00
pinctrl-ab8540.c pinctrl: ab8540: Staticize some symbols 2013-04-09 09:58:02 +02:00
pinctrl-ab9540.c pinctrl: ab9540: Staticize some symbols 2013-04-09 09:55:59 +02:00
pinctrl-abx500.c pinctrl: avoid duplicated calling enable_pinmux_setting for a pin 2014-07-11 14:08:26 +02:00
pinctrl-abx500.h mfd/pinctrl: Delete platform data header 2014-01-21 08:27:42 +00:00
pinctrl-adi2-bf54x.c pinctrl: pinctrl-adi: combine multiple groups of one function together 2014-02-25 10:49:13 +01:00
pinctrl-adi2-bf60x.c pinctrl: pinctrl-adi: combine multiple groups of one function together 2014-02-25 10:49:13 +01:00
pinctrl-adi2.c pinctrl: pinctrl-adi2.c: Cleaning up wrong format string usage 2014-07-11 14:08:34 +02:00
pinctrl-adi2.h pinctrl: pinctrl-adi: combine multiple groups of one function together 2014-02-25 10:49:13 +01:00
pinctrl-apq8064.c pinctrl: msm: Add missing sdc1 and sdc3 groups 2014-05-28 11:02:23 +02:00
pinctrl-as3722.c pinctrl: as3722: fix handling of GPIO invert bit 2014-04-22 17:04:11 +02:00
pinctrl-at91.c pinctrl: pinctrl-at91.c: Cleaning up values that are never used 2014-07-11 14:08:33 +02:00
pinctrl-baytrail.c pinctrl: baytrail: Warn if direct IRQ GPIO set to output 2014-07-11 14:08:35 +02:00
pinctrl-bcm281xx.c pinctrl: bcm281xx: Staticize bcm281xx_pinctrl_probe 2014-07-11 14:08:31 +02:00
pinctrl-bcm2835.c pinctrl: avoid duplicated calling enable_pinmux_setting for a pin 2014-07-11 14:08:26 +02:00
pinctrl-coh901.c pinctrl: coh901: convert driver to use gpiolib irqchip 2014-03-26 10:31:34 +01:00
pinctrl-coh901.h
pinctrl-exynos5440.c pinctrl: avoid duplicated calling enable_pinmux_setting for a pin 2014-07-11 14:08:26 +02:00
pinctrl-exynos.c pinctrl: exynos: Consolidate irq_chips of GPIO and WKUP EINTs 2014-07-11 14:08:37 +02:00
pinctrl-exynos.h pinctrl: exynos: Handle suspend/resume of GPIO EINT registers 2013-05-27 15:37:09 +02:00
pinctrl-falcon.c pinctrl: Pass all configs to driver on pin_config_set() 2013-08-28 13:34:41 +02:00
pinctrl-imx1-core.c pinctrl: pinctrl-imx1-core.c: Cleaning up if unsigned is less than zero 2014-07-11 14:08:33 +02:00
pinctrl-imx1.c pinctrl: Add i.MX1 pincontrol driver 2014-07-11 14:08:25 +02:00
pinctrl-imx1.h pinctrl: imx1 core driver 2013-10-29 06:54:37 -07:00
pinctrl-imx6dl.c pinctrl: remove redundant of_match_ptr 2013-10-08 10:02:25 +02:00
pinctrl-imx6q.c pinctrl: remove redundant of_match_ptr 2013-10-08 10:02:25 +02:00
pinctrl-imx6sl.c pinctrl: remove redundant of_match_ptr 2013-10-08 10:02:25 +02:00
pinctrl-imx6sx.c pinctrl: add pinctrl driver for imx6sx 2014-05-27 11:24:28 +02:00
pinctrl-imx23.c
pinctrl-imx25.c pinctrl: pinctrl-imx: add imx25 pinctrl driver 2013-11-25 09:08:30 +01:00
pinctrl-imx27.c pinctrl: i.MX27: Remove nonexistent pad definitions 2014-07-11 14:08:26 +02:00
pinctrl-imx28.c
pinctrl-imx35.c pinctrl: remove redundant of_match_ptr 2013-10-08 10:02:25 +02:00
pinctrl-imx50.c pinctrl: imx50: add pinctrl support code for the IMX50 SoC 2013-11-06 10:06:59 +01:00
pinctrl-imx51.c pinctrl: remove redundant of_match_ptr 2013-10-08 10:02:25 +02:00
pinctrl-imx53.c pinctrl: remove redundant of_match_ptr 2013-10-08 10:02:25 +02:00
pinctrl-imx.c pinctrl: pinctrl-imx.c: Cleaning up if unsigned is less than zero 2014-07-11 14:08:32 +02:00
pinctrl-imx.h pinctrl: imx: Use struct type for pins 2013-08-16 14:43:56 +02:00
pinctrl-ipq8064.c pinctrl: qcom: ipq8064: Fix naming convention 2014-05-29 10:37:43 +02:00
pinctrl-lantiq.c pinctrl/lantiq: Free mapping configs for both pin and groups 2013-05-15 13:28:46 +02:00
pinctrl-lantiq.h pinctrl: lantiq: Fix header file include guard 2014-04-22 08:41:35 +02:00
pinctrl-msm8x74.c pinctrl: msm: Add more MSM8X74 pin definitions 2014-05-29 10:42:59 +02:00
pinctrl-msm.c pinctrl: qcom: Add BUS_HOLD pin bias 2014-07-11 14:08:31 +02:00
pinctrl-msm.h pinctrl: msm: Make number of functions variable 2014-04-22 08:41:34 +02:00
pinctrl-mxs.c pinctrl: Pass all configs to driver on pin_config_set() 2013-08-28 13:34:41 +02:00
pinctrl-mxs.h
pinctrl-nomadik-db8500.c
pinctrl-nomadik-db8540.c
pinctrl-nomadik-stn8815.c
pinctrl-nomadik.c pinctrl: avoid duplicated calling enable_pinmux_setting for a pin 2014-07-11 14:08:26 +02:00
pinctrl-nomadik.h pinctrl: nomadik: move platform data handling into driver 2013-11-26 21:01:58 +01:00
pinctrl-palmas.c pinctrl: palmas: remove pin config BIAS_PULL_PIN_DEFAULT support 2013-10-08 13:27:27 +02:00
pinctrl-rockchip.c pinctrl: rockchip: add support for rk3288 pin-controller 2014-07-11 14:08:29 +02:00
pinctrl-s3c24xx.c pinctrl: s3c24xx: off by one in s3c24xx_eint_init() 2013-08-28 14:44:25 +02:00
pinctrl-s3c64xx.c pinctrl: s3c64xx: Fix build error caused by undefined chained_irq_enter 2013-04-23 13:59:45 +02:00
pinctrl-samsung.c pinctrl: samsung: Allow grouping multiple pinmux/pinconf nodes 2014-07-11 14:08:37 +02:00
pinctrl-samsung.h pinctrl: samsung: Allow grouping multiple pinmux/pinconf nodes 2014-07-11 14:08:37 +02:00
pinctrl-single.c pinctrl: pinctrl-single.c: Cleaning up wrong format string usage 2014-07-11 14:08:35 +02:00
pinctrl-st.c pinctrl: pinctrl-st.c: Cleaning up values that are never used 2014-07-11 14:08:35 +02:00
pinctrl-tb10x.c pinctrl: avoid duplicated calling enable_pinmux_setting for a pin 2014-07-11 14:08:26 +02:00
pinctrl-tegra20.c pinctrl: tegra: remove fsafe from data tables 2014-04-22 16:50:24 +02:00
pinctrl-tegra30.c pinctrl: tegra: remove fsafe from data tables 2014-04-22 16:50:24 +02:00
pinctrl-tegra114.c pinctrl: tegra: remove fsafe from data tables 2014-04-22 16:50:24 +02:00
pinctrl-tegra124.c pinctrl: tegra: remove fsafe from data tables 2014-04-22 16:50:24 +02:00
pinctrl-tegra.c pinctrl: avoid duplicated calling enable_pinmux_setting for a pin 2014-07-11 14:08:26 +02:00
pinctrl-tegra.h pinctrl: tegra: add missing kerneldoc 2014-04-22 16:55:41 +02:00
pinctrl-tz1090-pdc.c pinctrl: avoid duplicated calling enable_pinmux_setting for a pin 2014-07-11 14:08:26 +02:00
pinctrl-tz1090.c pinctrl: avoid duplicated calling enable_pinmux_setting for a pin 2014-07-11 14:08:26 +02:00
pinctrl-u300.c pinctrl: avoid duplicated calling enable_pinmux_setting for a pin 2014-07-11 14:08:26 +02:00
pinctrl-utils.c pinctrl: utils: include export.h to avoid warnings 2013-08-28 15:50:33 +02:00
pinctrl-utils.h pinctrl: add utility functions for add map/configs 2013-08-14 21:00:41 +02:00
pinctrl-vf610.c pinctrl: remove redundant of_match_ptr 2013-10-08 10:02:25 +02:00
pinctrl-xway.c pinctrl/lantiq: fix typo 2014-01-08 10:13:38 +01:00
pinmux.c pinctrl: avoid duplicated calling enable_pinmux_setting for a pin 2014-07-11 14:08:26 +02:00
pinmux.h