From: Xing Zheng zhengxing@rock-chips.com
If there is only one lrck (tx or rx) by hardware, we need to use 'rockchip,trcm-sync-tx-only/rx-only' to specify which lrck can be used.
Signed-off-by: Xing Zheng zhengxing@rock-chips.com Signed-off-by: Sugar Zhang sugar.zhang@rock-chips.com ---
Changes in v3: None Changes in v2: - split property trcm into single 'trcm-sync-tx-only' and 'trcm-sync-rx-only' suggested by Nicolas.
sound/soc/rockchip/rockchip_i2s.c | 29 ++++++++++++++++++++--------- 1 file changed, 20 insertions(+), 9 deletions(-)
diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c index 801fc60..3e8b96e 100644 --- a/sound/soc/rockchip/rockchip_i2s.c +++ b/sound/soc/rockchip/rockchip_i2s.c @@ -25,6 +25,10 @@
#define DRV_NAME "rockchip-i2s"
+#define TRCM_TXRX 0 +#define TRCM_TX 1 +#define TRCM_RX 2 + struct rk_i2s_pins { u32 reg_offset; u32 shift; @@ -324,7 +328,6 @@ 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;
@@ -424,13 +427,6 @@ 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; }
@@ -513,7 +509,6 @@ static const struct snd_soc_dai_ops rockchip_i2s_dai_ops = { static struct snd_soc_dai_driver rockchip_i2s_dai = { .probe = rockchip_i2s_dai_probe, .ops = &rockchip_i2s_dai_ops, - .symmetric_rate = 1, };
static const struct snd_soc_component_driver rockchip_i2s_component = { @@ -689,6 +684,22 @@ static int rockchip_i2s_init_dai(struct rk_i2s_dev *i2s, struct resource *res, } }
+ val = TRCM_TXRX; + if (of_property_read_bool(node, "rockchip,trcm-sync-tx-only")) + val = TRCM_TX; + if (of_property_read_bool(node, "rockchip,trcm-sync-rx-only")) { + if (val) { + dev_err(i2s->dev, "invalid trcm-sync configuration\n"); + return -EINVAL; + } + val = TRCM_RX; + } + if (val != TRCM_TXRX) + dai->symmetric_rate = 1; + + regmap_update_bits(i2s->regmap, I2S_CKR, + I2S_CKR_TRCM_MASK, I2S_CKR_TRCM(val)); + if (dp) *dp = dai;