[PATCH v3 1/6] ASoC: dwc: Fix bit clock rate in TDM mode

[phucduc.bui@gmail.com]

From: bui duc phuc <phucduc.bui@gmail.com>

The bit clock is computed as rate * data_width * 2, which only fits
a two-slot I2S frame. Use rate * data_width * tdm_slots in TDM mode.

Fixes: 221acc16aee1 ("ASoC: dwc: Add TDM mode support")
Reviewed-by: Maxim Kochetkov <fido_max@inbox.ru>
Signed-off-by: bui duc phuc <phucduc.bui@gmail.com>
---

Changes in v2:
 - Move the indentation fixes into a separate commit.
 - Add Maxim Kochetkov's Reviewed-by tag.

 sound/soc/dwc/dwc-i2s.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sound/soc/dwc/dwc-i2s.c b/sound/soc/dwc/dwc-i2s.c
index dbda943cfaf3..1f4d06a82333 100644
--- a/sound/soc/dwc/dwc-i2s.c
+++ b/sound/soc/dwc/dwc-i2s.c
@@ -332,6 +332,9 @@ static int dw_i2s_hw_params(struct snd_pcm_substream *substream,
 		} else {
 			u32 bitclk = config->sample_rate *
 					config->data_width * 2;
+			if (dev->tdm_slots)
+				bitclk = config->sample_rate *
+					 config->data_width * dev->tdm_slots;
 
 			ret = clk_set_rate(dev->clk, bitclk);
 			if (ret) {
-- 
2.43.0