[PATCH v2 5/7] ASoC: tegra: set i2s_offset to 0 for tdm

Ben Dooks
2019-09-23T16:20:24Z

Set the offset to 0 for TDM mode, as per the current setup. Note we also
move the data offset programming to the i2s hw_parameters call as per
the suggestion from Jon Hunter.

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
---
v2:
- fix the review comments and move the i2s offset setting
---
sound/soc/tegra/tegra30_i2s.c | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/sound/soc/tegra/tegra30_i2s.c b/sound/soc/tegra/tegra30_i2s.c
index 1cc43cdd0eee..01463803285d 100644
--- a/sound/soc/tegra/tegra30_i2s.c
+++ b/sound/soc/tegra/tegra30_i2s.c
@@ -66,7 +66,7 @@ static int tegra30_i2s_set_fmt(struct snd_soc_dai *dai,
unsigned int fmt)
{
struct tegra30_i2s *i2s = snd_soc_dai_get_drvdata(dai);
- unsigned int mask = 0, val = 0;
+ unsigned int mask = 0, val = 0, data_offset = 1;
unsigned int ch_mask, ch_val = 0;

switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
@@ -95,11 +95,13 @@ static int tegra30_i2s_set_fmt(struct snd_soc_dai *dai,
ch_val = TEGRA30_I2S_CH_CTRL_EGDE_CTRL_NEG_EDGE;
val |= TEGRA30_I2S_CTRL_FRAME_FORMAT_FSYNC;
val |= TEGRA30_I2S_CTRL_LRCK_L_LOW;
+ data_offset = 0;
break;
case SND_SOC_DAIFMT_DSP_B:
ch_val = TEGRA30_I2S_CH_CTRL_EGDE_CTRL_NEG_EDGE;
val |= TEGRA30_I2S_CTRL_FRAME_FORMAT_FSYNC;
val |= TEGRA30_I2S_CTRL_LRCK_R_LOW;
+ data_offset = 0;
break;
case SND_SOC_DAIFMT_I2S:
val |= TEGRA30_I2S_CTRL_FRAME_FORMAT_LRCK;
@@ -120,6 +122,10 @@ static int tegra30_i2s_set_fmt(struct snd_soc_dai *dai,
pm_runtime_get_sync(dai->dev);
regmap_update_bits(i2s->regmap, TEGRA30_I2S_CTRL, mask, val);
regmap_update_bits(i2s->regmap, TEGRA30_I2S_CH_CTRL, ch_mask, ch_val);
+ val = (data_offset << TEGRA30_I2S_OFFSET_RX_DATA_OFFSET_SHIFT) |
+ (data_offset << TEGRA30_I2S_OFFSET_TX_DATA_OFFSET_SHIFT);
+ regmap_write(i2s->regmap, TEGRA30_I2S_OFFSET, val);
+
pm_runtime_put(dai->dev);

return 0;
@@ -203,11 +209,6 @@ static int tegra30_i2s_hw_params(struct snd_pcm_substream *substream,
}

i2s->soc_data->set_audio_cif(i2s->regmap, reg, &cif_conf);
-
- val = (1 << TEGRA30_I2S_OFFSET_RX_DATA_OFFSET_SHIFT) |
- (1 << TEGRA30_I2S_OFFSET_TX_DATA_OFFSET_SHIFT);
- regmap_write(i2s->regmap, TEGRA30_I2S_OFFSET, val);
-
return 0;
}

--
2.23.0