Commit 1948d5c5 authored by Rahul Tanwar's avatar Rahul Tanwar Committed by Linus Walleij
Browse files

pinctrl: Add pinmux & GPIO controller driver for a new SoC 



Intel Lightning Mountain SoC has a pinmux controller & GPIO controller IP which
controls pin multiplexing & configuration including GPIO functions selection &
GPIO attributes configuration.

This IP is not based on & does not have anything in common with Chassis
specification. The pinctrl drivers under pinctrl/intel/* are all based upon
Chassis spec compliant pinctrl IPs. So this driver doesn't fit & can not use
pinctrl framework under pinctrl/intel/* and it requires a separate new driver.

Add a new GPIO & pin control framework based driver for this IP.

Signed-off-by: default avatarRahul Tanwar <rahul.tanwar@linux.intel.com>
Link: https://lore.kernel.org/r/33e649758b70490f01724a887c490d5008c7656d.1573797249.git.rahul.tanwar@linux.intel.com


Reviewed-by: default avatarAndy Shevchenko <andriy.shevchenko@intel.com>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 54787d7c

drivers/pinctrl/Kconfig

+18 −0
Original line number Diff line number Diff line
@@ -420,4 +420,22 @@ config PINCTRL_TB10X 
	depends on OF && ARC_PLAT_TB10X

	select GPIOLIB



config PINCTRL_EQUILIBRIUM

	tristate "Generic pinctrl and GPIO driver for Intel Lightning Mountain SoC"

	select PINMUX

	select PINCONF

	select GPIOLIB

	select GPIO_GENERIC

	select GPIOLIB_IRQCHIP

	select GENERIC_PINCONF

	select GENERIC_PINCTRL_GROUPS

	select GENERIC_PINMUX_FUNCTIONS



	help

	  Equilibrium pinctrl driver is a pinctrl & GPIO driver for Intel Lightning

	  Mountain network processor SoC that supports both the linux GPIO and pin

	  control frameworks. It provides interfaces to setup pinmux, assign desired

	  pin functions, configure GPIO attributes for LGM SoC pins. Pinmux and

	  pinconf settings are retrieved from device tree.



endif

drivers/pinctrl/Makefile

+1 −0
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@@ -46,6 +46,7 @@ obj-$(CONFIG_PINCTRL_ZYNQ) += pinctrl-zynq.o 
obj-$(CONFIG_PINCTRL_INGENIC)	+= pinctrl-ingenic.o

obj-$(CONFIG_PINCTRL_RK805)	+= pinctrl-rk805.o

obj-$(CONFIG_PINCTRL_OCELOT)	+= pinctrl-ocelot.o

obj-$(CONFIG_PINCTRL_EQUILIBRIUM)   += pinctrl-equilibrium.o



obj-y				+= actions/

obj-$(CONFIG_ARCH_ASPEED)	+= aspeed/

drivers/pinctrl/pinctrl-equilibrium.c

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drivers/pinctrl/pinctrl-equilibrium.h

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