mfd: Add Samsung Exynos Low Power Audio Subsystem driver
This patch adds common driver for the Top block of the Samsung Exynos
SoC Low Power Audio Subsystem. This is a minimal driver which prepares
resources for IP blocks like I2S, audio DMA and UART and exposes
a regmap for the Top block registers. Also system power ops are added
to ensure the Audio Subsystem is operational after system suspend/resume
cycle.
Signed-off-by: Inha Song <ideal.song@samsung.com>
Signed-off-by: Beomho Seo <beomho.seo@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Tested-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 362aa1a..9ac9f62 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -291,6 +291,14 @@
etc. must be enabled in order to use the functionality of
the device.
+config MFD_EXYNOS_LPASS
+ tristate "Samsung Exynos SoC Low Power Audio Subsystem"
+ select MFD_CORE
+ select REGMAP_MMIO
+ help
+ Select this option to enable support for Samsung Exynos Low Power
+ Audio Subsystem.
+
config MFD_MC13XXX
tristate
depends on (SPI_MASTER || I2C)