Unverified Commit 71d9537f authored by Olivier Moysan's avatar Olivier Moysan Committed by Mark Brown
Browse files

ASoC: stm32: sai: fix oversampling mode 



Set OSR bit if mclk/fs ratio is 512.

Signed-off-by: default avatarOlivier Moysan <olivier.moysan@st.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 26f98e82

sound/soc/stm/stm32_sai_sub.c

+9 −3
Original line number Diff line number Diff line
@@ -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)