diff options
| author | Olivier Moysan <olivier.moysan@st.com> | 2019-02-28 14:19:24 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-03-03 23:39:54 +0000 |
| commit | 71d9537fada47762a1a1b33a8a1f95a92d7edc11 (patch) | |
| tree | 55fec58cb1a860117aade6f1bc7ac7f986f738b5 /sound/soc/stm | |
| parent | 26f98e82dd49b7c3cc5ef0edd882aa732a62b672 (diff) | |
ASoC: stm32: sai: fix oversampling mode
Set OSR bit if mclk/fs ratio is 512.
Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/stm')
| -rw-r--r-- | sound/soc/stm/stm32_sai_sub.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/sound/soc/stm/stm32_sai_sub.c b/sound/soc/stm/stm32_sai_sub.c index cad415e03b5e..cb658463ccd1 100644 --- a/sound/soc/stm/stm32_sai_sub.c +++ b/sound/soc/stm/stm32_sai_sub.c @@ -913,7 +913,7 @@ static int stm32_sai_configure_clock(struct snd_soc_dai *cpu_dai, struct snd_pcm_hw_params *params) { struct stm32_sai_sub_data *sai = snd_soc_dai_get_drvdata(cpu_dai); - int div = 0; + int div = 0, cr1 = 0; int sai_clk_rate, mclk_ratio, den; unsigned int rate = params_rate(params); @@ -958,13 +958,19 @@ static int stm32_sai_configure_clock(struct snd_soc_dai *cpu_dai, } else { if (sai->mclk_rate) { mclk_ratio = sai->mclk_rate / rate; - if ((mclk_ratio != 512) && - (mclk_ratio != 256)) { + if (mclk_ratio == 512) { + cr1 = SAI_XCR1_OSR; + } else if (mclk_ratio != 256) { dev_err(cpu_dai->dev, "Wrong mclk ratio %d\n", mclk_ratio); return -EINVAL; } + + regmap_update_bits(sai->regmap, + STM_SAI_CR1_REGX, + SAI_XCR1_OSR, cr1); + div = stm32_sai_get_clk_div(sai, sai_clk_rate, sai->mclk_rate); if (div < 0) |