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mfd: wm97xx-core: core support for wm97xx Codec

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The WM9705, WM9712 and WM9713 are highly integrated codecs, with an
audio codec, DAC and ADC, GPIO unit and a touchscreen interface.

Historically the support was spread across drivers/input/touchscreen and
sound/soc/codecs. The sharing was done through ac97 bus sharing. This
model will not withstand the new AC97 bus model, where codecs are
discovered on runtime.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Robert Jarzmik
2017-09-13 21:37:17 +02:00
committed by Mark Brown
parent c72f61e740
commit a5c6951c49
4 changed files with 406 additions and 0 deletions
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14
drivers/mfd/Kconfig
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@@ -1746,6 +1746,20 @@ config MFD_WM8994
core support for the WM8994, in order to use the actual
functionaltiy of the device other drivers must be enabled.
config MFD_WM97xx
tristate "Wolfson Microelectronics WM97xx"
select MFD_CORE
select REGMAP_AC97
select AC97_BUS_COMPAT
depends on AC97_BUS_NEW
help
The WM9705, WM9712 and WM9713 is a highly integrated hi-fi CODEC
designed for smartphone applications. As well as audio functionality
it has on board GPIO and a touchscreen functionality which is
supported via the relevant subsystems. This driver provides core
support for the WM97xx, in order to use the actual functionaltiy of
the device other drivers must be enabled.
config MFD_STW481X
tristate "Support for ST Microelectronics STw481x"
depends on I2C && (ARCH_NOMADIK || COMPILE_TEST)