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authorMaxime Ripard <maxime.ripard@bootlin.com>2019-08-21 15:06:53 +0200
committerMark Brown <broonie@kernel.org>2019-08-21 14:15:44 +0100
commit5389f4765789e4ecf9831bc968562befdd2f3bee (patch)
treea83fc36c893a13c5c263c0ab5c8e0b39940470cb
parent137befe19f310400a8b20fd8a4ce8c4141aafde0 (diff)
ASoC: sun4i-i2s: Use the physical / slot width for the clocks
The clock dividers function has been using the word size to compute the clock rate at which it's supposed to be running, but the proper formula would be to use the physical width and / or slot width in TDM. It doesn't make any difference at the moment since all the formats supported have the same sample width and physical width, but it's not going to last forever. Fixes: 7d2993811a1e ("ASoC: sun4i-i2s: Add support for H3") Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://lore.kernel.org/r/41a359d9885f397e066816961e5e3236afcbe0a1.1566392800.git-series.maxime.ripard@bootlin.com Signed-off-by: Mark Brown <broonie@kernel.org>
-rw-r--r--sound/soc/sunxi/sun4i-i2s.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/sound/soc/sunxi/sun4i-i2s.c b/sound/soc/sunxi/sun4i-i2s.c
index 8326b8cfa569..cdc3fa60ff33 100644
--- a/sound/soc/sunxi/sun4i-i2s.c
+++ b/sound/soc/sunxi/sun4i-i2s.c
@@ -290,7 +290,7 @@ static bool sun4i_i2s_oversample_is_valid(unsigned int oversample)
static int sun4i_i2s_set_clk_rate(struct snd_soc_dai *dai,
unsigned int rate,
unsigned int slots,
- unsigned int word_size)
+ unsigned int slot_width)
{
struct sun4i_i2s *i2s = snd_soc_dai_get_drvdata(dai);
unsigned int oversample_rate, clk_rate, bclk_parent_rate;
@@ -337,7 +337,7 @@ static int sun4i_i2s_set_clk_rate(struct snd_soc_dai *dai,
bclk_parent_rate = i2s->variant->get_bclk_parent_rate(i2s);
bclk_div = sun4i_i2s_get_bclk_div(i2s, bclk_parent_rate,
- rate, slots, word_size);
+ rate, slots, slot_width);
if (bclk_div < 0) {
dev_err(dai->dev, "Unsupported BCLK divider: %d\n", bclk_div);
return -EINVAL;
@@ -458,6 +458,7 @@ static int sun4i_i2s_hw_params(struct snd_pcm_substream *substream,
{
struct sun4i_i2s *i2s = snd_soc_dai_get_drvdata(dai);
unsigned int word_size = params_width(params);
+ unsigned int slot_width = params_physical_width(params);
unsigned int channels = params_channels(params);
unsigned int slots = channels;
int ret, sr, wss;
@@ -467,7 +468,7 @@ static int sun4i_i2s_hw_params(struct snd_pcm_substream *substream,
slots = i2s->slots;
if (i2s->slot_width)
- word_size = i2s->slot_width;
+ slot_width = i2s->slot_width;
ret = i2s->variant->set_chan_cfg(i2s, params);
if (ret < 0) {
@@ -490,14 +491,15 @@ static int sun4i_i2s_hw_params(struct snd_pcm_substream *substream,
if (sr < 0)
return -EINVAL;
- wss = i2s->variant->get_wss(i2s, word_size);
+ wss = i2s->variant->get_wss(i2s, slot_width);
if (wss < 0)
return -EINVAL;
regmap_field_write(i2s->field_fmt_wss, wss);
regmap_field_write(i2s->field_fmt_sr, sr);
- return sun4i_i2s_set_clk_rate(dai, params_rate(params), slots, word_size);
+ return sun4i_i2s_set_clk_rate(dai, params_rate(params),
+ slots, slot_width);
}
static int sun4i_i2s_set_soc_fmt(const struct sun4i_i2s *i2s,