Commit 576623d7 authored by AngeloGioacchino Del Regno's avatar AngeloGioacchino Del Regno Committed by Linus Walleij
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pinctrl: Add driver for Awinic AW9523/B I2C GPIO Expander 



The Awinic AW9523(B) is a multi-function I2C gpio expander in a
TQFN-24L package, featuring PWM (max 37mA per pin, or total max
power 3.2Watts) for LED driving capability.

It has two ports with 8 pins per port (for a total of 16 pins),
configurable as either PWM with 1/256 stepping or GPIO input/output,
1.8V logic input; each GPIO can be configured as input or output
independently from each other.

This IC also has an internal interrupt controller, which is capable
of generating an interrupt for each GPIO, depending on the
configuration, and will raise an interrupt on the INTN pin to
advertise this to an external interrupt controller.

Signed-off-by: default avatarAngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
Signed-off-by: default avatarDavid Bauer <mail@david-bauer.net>
Link: https://lore.kernel.org/r/20210624214458.68716-2-mail@david-bauer.net


Acked-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20240301-awinic-aw9523-v8-1-7ec572f5dfb4@linaro.org
parent 5384b7d3

drivers/pinctrl/Kconfig

+18 −0
Original line number Diff line number Diff line
@@ -127,6 +127,24 @@ config PINCTRL_AXP209 
	  selected.

	  Say Y to enable pinctrl and GPIO support for the AXP209 PMIC.



config PINCTRL_AW9523

	bool "Awinic AW9523/AW9523B I2C GPIO expander pinctrl driver"

	depends on OF && I2C

	select PINMUX

	select PINCONF

	select GENERIC_PINCONF

	select GPIOLIB

	select GPIOLIB_IRQCHIP

	select REGMAP

	select REGMAP_I2C

	help

	  The Awinic AW9523/AW9523B is a multi-function I2C GPIO

	  expander with PWM functionality. This driver bundles a

	  pinctrl driver to select the function muxing and a GPIO

	  driver to handle GPIO, when the GPIO function is selected.



	  Say yes to enable pinctrl and GPIO support for the AW9523(B).



config PINCTRL_BM1880

	bool "Bitmain BM1880 Pinctrl driver"

	depends on OF && (ARCH_BITMAIN || COMPILE_TEST)

drivers/pinctrl/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -15,6 +15,7 @@ obj-$(CONFIG_PINCTRL_ARTPEC6) += pinctrl-artpec6.o 
obj-$(CONFIG_PINCTRL_AS3722)	+= pinctrl-as3722.o

obj-$(CONFIG_PINCTRL_AT91)	+= pinctrl-at91.o

obj-$(CONFIG_PINCTRL_AT91PIO4)	+= pinctrl-at91-pio4.o

obj-$(CONFIG_PINCTRL_AW9523)	+= pinctrl-aw9523.o

obj-$(CONFIG_PINCTRL_AXP209)	+= pinctrl-axp209.o

obj-$(CONFIG_PINCTRL_BM1880)	+= pinctrl-bm1880.o

obj-$(CONFIG_PINCTRL_CY8C95X0)	+= pinctrl-cy8c95x0.o

drivers/pinctrl/pinctrl-aw9523.c

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+1118 −0

File added.

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