ASoC: samsung: Allow setting OP_CLK of the IIS Multi Audio Interface

This patch adds support for setting source clock of the "Core CLK"
of the IIS Multi Audio Interface.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

2 files changed, 5 insertions, 0 deletions

diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c
index 6e61db75ec4e..1e99071fb624 100644
--- a/sound/soc/samsung/i2s.c
+++ b/sound/soc/samsung/i2s.c
@@ -451,6 +451,10 @@ static int i2s_set_sysclk(struct snd_soc_dai *dai,
         u32 mod = readl(i2s->addr + I2SMOD);
 
         switch (clk_id) {
+        case SAMSUNG_I2S_OPCLK:
+                mod &= ~MOD_OPCLK_MASK;
+                mod |= dir;
+                break;
         case SAMSUNG_I2S_CDCLK:
                 /* Shouldn't matter in GATING(CLOCK_IN) mode */
                 if (dir == SND_SOC_CLOCK_IN)
diff --git a/sound/soc/samsung/i2s.h b/sound/soc/samsung/i2s.h
index 7966afc934db..21ff24e930db 100644
--- a/sound/soc/samsung/i2s.h
+++ b/sound/soc/samsung/i2s.h
@@ -18,5 +18,6 @@
 #define SAMSUNG_I2S_RCLKSRC_0   0
 #define SAMSUNG_I2S_RCLKSRC_1   1
 #define SAMSUNG_I2S_CDCLK               2
+#define SAMSUNG_I2S_OPCLK               3
 
 #endif /* __SND_SOC_SAMSUNG_I2S_H */