From: Xing Zheng <zhengxing@xxxxxxxxxxxxxx>
If there is only one lrck (tx or rx) by hardware, we need to
use 'rockchip,clk-trcm' to specify which lrck can be used.
Change-Id: I3bf8d87a6bc8c45e183040012d87d8be21a4c133
Signed-off-by: Xing Zheng <zhengxing@xxxxxxxxxxxxxx>
Signed-off-by: Sugar Zhang <sugar.zhang@xxxxxxxxxxxxxx>
---
sound/soc/rockchip/rockchip_i2s.c | 22 +++++++++++++---------
1 file changed, 13 insertions(+), 9 deletions(-)
diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c
index 6ccb62e..b9d9c88 100644
--- a/sound/soc/rockchip/rockchip_i2s.c
+++ b/sound/soc/rockchip/rockchip_i2s.c
@@ -54,6 +54,7 @@ struct rk_i2s_dev {
bool is_master_mode;
const struct rk_i2s_pins *pins;
unsigned int bclk_ratio;
+ unsigned int clk_trcm;
};
/* tx/rx ctrl lock */
@@ -321,7 +322,6 @@ 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 = asoc_substream_to_rtd(substream);
unsigned int val = 0;
unsigned int mclk_rate, bclk_rate, div_bclk, div_lrck;
@@ -421,13 +421,6 @@ 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_rate && rtd->dai_link->symmetric_rate)
- val = I2S_CKR_TRCM_TXONLY;
-
- regmap_update_bits(i2s->regmap, I2S_CKR,
- I2S_CKR_TRCM_MASK,
- val);
return 0;
}
@@ -531,7 +524,6 @@ static struct snd_soc_dai_driver rockchip_i2s_dai = {
SNDRV_PCM_FMTBIT_S32_LE),
},
.ops = &rockchip_i2s_dai_ops,
- .symmetric_rate = 1,
};
static const struct snd_soc_component_driver rockchip_i2s_component = {
@@ -750,6 +742,18 @@ static int rockchip_i2s_probe(struct platform_device *pdev)
else if (of_property_read_bool(node, "rockchip,capture-only"))
soc_dai->playback.channels_min = 0;
+ i2s->clk_trcm = I2S_CKR_TRCM_TXRX;
+ if (!of_property_read_u32(node, "rockchip,clk-trcm", &val)) {
+ if (val >= 0 && val <= 2) {
+ i2s->clk_trcm = val << I2S_CKR_TRCM_SHIFT;
+ if (i2s->clk_trcm)
+ soc_dai->symmetric_rate = 1;
+ }
+ }
+
+ regmap_update_bits(i2s->regmap, I2S_CKR,
+ I2S_CKR_TRCM_MASK, i2s->clk_trcm);
+
ret = devm_snd_soc_register_component(&pdev->dev,
&rockchip_i2s_component,
soc_dai, 1);
--
2.7.4
