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mfd: Add Samsung Exynos Low Power Audio Subsystem driver

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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>
This commit is contained in:
Sylwester Nawrocki
2016-08-10 16:48:20 +02:00
committed by Lee Jones
parent e18183cefc
commit c695abab24
4 changed files with 199 additions and 1 deletions
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4
include/linux/mfd/syscon/exynos5-pmu.h
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@@ -43,8 +43,10 @@
#define EXYNOS5433_MIPI_PHY2_CONTROL (0x718)
#define EXYNOS5_PHY_ENABLE BIT(0)
#define EXYNOS5_MIPI_PHY_S_RESETN BIT(1)
#define EXYNOS5_MIPI_PHY_M_RESETN BIT(2)
#define EXYNOS5433_PAD_RETENTION_AUD_OPTION (0x3028)
#define EXYNOS5433_PAD_INITIATE_WAKEUP_FROM_LOWPWR BIT(28)
#endif /* _LINUX_MFD_SYSCON_PMU_EXYNOS5_H_ */