Commit 218d72a7 authored by Richard Fitzgerald's avatar Richard Fitzgerald Committed by Lee Jones
Browse files

pinctrl: madera: Add driver for Cirrus Logic Madera codecs 



These codecs have a variable number of I/O lines each of which
is individually selectable to a wide range of possible functions.

The functionality is slightly different from the traditional muxed
GPIO since most of the functions can be mapped to any pin (and even
the same function to multiple pins). Most pins have a dedicated
"alternate" function that is only available on that pin. The
alternate functions are usually a group of signals, though it is
not always necessary to enable the full group, depending on the
alternate function and how it is to be used. The mapping between
alternate functions and GPIO pins varies between codecs depending
on the number of alternate functions and available pins.

Signed-off-by: default avatarRichard Fitzgerald <rf@opensource.cirrus.com>
Reviewed-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: default avatarLee Jones <lee.jones@linaro.org>
parent b3b606c9

MAINTAINERS

+2 −0
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@@ -3488,9 +3488,11 @@ T: git https://github.com/CirrusLogic/linux-drivers.git 
W:	https://github.com/CirrusLogic/linux-drivers/wiki

S:	Supported

F:	Documentation/devicetree/bindings/mfd/madera.txt

F:	Documentation/devicetree/bindings/pinctrl/cirrus,madera-pinctrl.txt

F:	include/linux/mfd/madera/*

F:	drivers/mfd/madera*

F:	drivers/mfd/cs47l*

F:	drivers/pinctrl/cirrus/*



CLEANCACHE API

M:	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

drivers/pinctrl/Kconfig

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@@ -359,6 +359,7 @@ source "drivers/pinctrl/vt8500/Kconfig" 
source "drivers/pinctrl/mediatek/Kconfig"

source "drivers/pinctrl/zte/Kconfig"

source "drivers/pinctrl/meson/Kconfig"

source "drivers/pinctrl/cirrus/Kconfig"



config PINCTRL_XWAY

	bool

drivers/pinctrl/Makefile

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@@ -63,3 +63,4 @@ obj-$(CONFIG_PINCTRL_UNIPHIER) += uniphier/ 
obj-$(CONFIG_ARCH_VT8500)	+= vt8500/

obj-y				+= mediatek/

obj-$(CONFIG_PINCTRL_ZX)	+= zte/

obj-y				+= cirrus/

drivers/pinctrl/cirrus/Kconfig

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# This is all selected by the Madera MFD driver Kconfig options

config PINCTRL_MADERA

	tristate

	select PINMUX

	select GENERIC_PINCONF



config PINCTRL_CS47L35

	bool



config PINCTRL_CS47L85

	bool



config PINCTRL_CS47L90

	bool

drivers/pinctrl/cirrus/Makefile

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# Cirrus Logic pinctrl drivers

pinctrl-madera-objs		:= pinctrl-madera-core.o

ifeq ($(CONFIG_PINCTRL_CS47L35),y)

pinctrl-madera-objs		+= pinctrl-cs47l35.o

endif

ifeq ($(CONFIG_PINCTRL_CS47L85),y)

pinctrl-madera-objs		+= pinctrl-cs47l85.o

endif

ifeq ($(CONFIG_PINCTRL_CS47L90),y)

pinctrl-madera-objs		+= pinctrl-cs47l90.o

endif



obj-$(CONFIG_PINCTRL_MADERA)	+= pinctrl-madera.o

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