share lrck_tx to lrck_rx when symmetric_rates enabled.
Signed-off-by: Sugar Zhang <sugar.zh...@rock-chips.com>
---
Changes in v2:
- new patch
sound/soc/rockchip/rockchip_i2s.c | 8 ++++++++
sound/soc/rockchip/rockchip_i2s.h | 6 ++++++
2 files changed, 14 insertions(+)
diff --git a/sound/soc/rockchip/rockchip_i2s.c
b/sound/soc/rockchip/rockchip_i2s.c
index f07833b..58ee645 100644
--- a/sound/soc/rockchip/rockchip_i2s.c
+++ b/sound/soc/rockchip/rockchip_i2s.c
@@ -226,6 +226,7 @@ static int rockchip_i2s_hw_params(struct snd_pcm_substream
*substream,
struct snd_soc_dai *dai)
{
struct rk_i2s_dev *i2s = to_info(dai);
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
unsigned int val = 0;
switch (params_format(params)) {
@@ -278,6 +279,13 @@ static int rockchip_i2s_hw_params(struct snd_pcm_substream
*substream,
regmap_update_bits(i2s->regmap, I2S_DMACR, I2S_DMACR_RDL_MASK,
I2S_DMACR_RDL(16));
+ val = I2S_CKR_TRCM_TXRX;
+ if (dai->driver->symmetric_rates || rtd->dai_link->symmetric_rates)
+ val = I2S_CKR_TRCM_TXSHARE;
+
+ regmap_update_bits(i2s->regmap, I2S_CKR,
+ I2S_CKR_TRCM_MASK,
+ val);
return 0;
}
diff --git a/sound/soc/rockchip/rockchip_i2s.h
b/sound/soc/rockchip/rockchip_i2s.h
index a54ee35..dc6e2c7 100644
--- a/sound/soc/rockchip/rockchip_i2s.h
+++ b/sound/soc/rockchip/rockchip_i2s.h
@@ -78,6 +78,12 @@
* CKR
* clock generation register
*/
+#define I2S_CKR_TRCM_SHIFT 28
+#define I2S_CKR_TRCM(x) (x << I2S_CKR_TRCM_SHIFT)
+#define I2S_CKR_TRCM_TXRX (0 << I2S_CKR_TRCM_SHIFT)
+#define I2S_CKR_TRCM_TXSHARE (1 << I2S_CKR_TRCM_SHIFT)
+#define I2S_CKR_TRCM_RXSHARE (2 << I2S_CKR_TRCM_SHIFT)
+#define I2S_CKR_TRCM_MASK (3 << I2S_CKR_TRCM_SHIFT)
#define I2S_CKR_MSS_SHIFT 27
#define I2S_CKR_MSS_MASTER (0 << I2S_CKR_MSS_SHIFT)
#define I2S_CKR_MSS_SLAVE (1 << I2S_CKR_MSS_SHIFT)
--
2.3.6
--
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