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pinctrl: Add Pistachio SoC pin control driver

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Add a driver for the pin controller present on the IMG Pistachio SoC.
This driver provides pinmux and pinconfig operations as well as GPIO
and IRQ chips for the GPIO banks.

Changes from v4:
 - Switched to using gpiochip_add_pin_range().
 - Fixed up Kconfig entry.
Changes from v3:
 - Addressed review comments from Ezequiel.
Changes from v2:
 - Removed module stuff which would be compiled out.
Changes from v1:
 - Addressed review comments from Linus.
 - Changed compatible string to "img,pistachio-system-pinctrl".
 - Look for GPIO sub-nodes by name.
 - A couple of bug fixes.

Signed-off-by: Damien Horsley <Damien.Horsley@imgtec.com>
Signed-off-by: Govindraj Raja <govindraj.raja@imgtec.com>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@imgtec.com>
Signed-off-by: Kevin Cernekee <cernekee@chromium.org>
Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Cc: James Hartley <james.hartley@imgtec.com>
Cc: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Andrew Bresticker 2015-05-06 12:59:03 -07:00 committed by Linus Walleij
parent 403fbdee47
commit cefc03e599
3 changed files with 1513 additions and 0 deletions
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8
drivers/pinctrl/Kconfig
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@ -134,6 +134,14 @@ config PINCTRL_SIRF
select PINMUX
select GPIOLIB_IRQCHIP
config PINCTRL_PISTACHIO
def_bool y if MACH_PISTACHIO
depends on GPIOLIB
select PINMUX
select GENERIC_PINCONF
select GPIOLIB_IRQCHIP
select OF_GPIO
config PINCTRL_ST
bool
depends on OF

1
drivers/pinctrl/Makefile
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@ -18,6 +18,7 @@ obj-$(CONFIG_PINCTRL_AMD) += pinctrl-amd.o
obj-$(CONFIG_PINCTRL_FALCON) += pinctrl-falcon.o
obj-$(CONFIG_PINCTRL_MESON) += meson/
obj-$(CONFIG_PINCTRL_PALMAS) += pinctrl-palmas.o
obj-$(CONFIG_PINCTRL_PISTACHIO) += pinctrl-pistachio.o
obj-$(CONFIG_PINCTRL_ROCKCHIP) += pinctrl-rockchip.o
obj-$(CONFIG_PINCTRL_SINGLE) += pinctrl-single.o
obj-$(CONFIG_PINCTRL_SIRF) += sirf/

1504
drivers/pinctrl/pinctrl-pistachio.c Normal file
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