From: Olivier Moysan olivier.moysan@foss.st.com
[ Upstream commit 424fe7edbed18d47f7b97f7e1322a6f8969b77ae ]
Fix divider calculation in the case of 32 bits channel configuration, when no master clock is used.
Fixes: e4e6ec7b127c ("ASoC: stm32: Add I2S driver")
Signed-off-by: Olivier Moysan olivier.moysan@foss.st.com Link: https://lore.kernel.org/r/20211117104404.3832-1-olivier.moysan@foss.st.com Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- sound/soc/stm/stm32_i2s.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/stm/stm32_i2s.c b/sound/soc/stm/stm32_i2s.c index 6254bacad6eb7..717f45a83445c 100644 --- a/sound/soc/stm/stm32_i2s.c +++ b/sound/soc/stm/stm32_i2s.c @@ -700,7 +700,7 @@ static int stm32_i2s_configure_clock(struct snd_soc_dai *cpu_dai, if (ret < 0) return ret;
- nb_bits = frame_len * ((cgfr & I2S_CGFR_CHLEN) + 1); + nb_bits = frame_len * (FIELD_GET(I2S_CGFR_CHLEN, cgfr) + 1); ret = stm32_i2s_calc_clk_div(i2s, i2s_clock_rate, (nb_bits * rate)); if (ret)