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ASoC: samsung: i2s: Fix rclk_srcrate handling 

As the RCLK clock may be updated through the common clk API before each
snd_soc_dai_ops::trigger call, it is not enough to update i2s->rclk_srcrate
only once after it has been initially set to 0. To avoid wrong PSR values
we always get RCLK frequency from the CLK_I2S_RCLK_SRC clock, when that
clock is available.

Fixes: e1417fdf3011 "ASoC: samsung: i2s: Ensure the RCLK rate is properly determined"
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Sylwester Nawrocki 2018-03-09 18:48:55 +01:00 committed by Mark Brown
parent 3600cd78d7
commit 995e73e55f
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1 changed files with 1 additions and 1 deletions
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sound/soc/samsung/i2s.c
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@ -887,7 +887,7 @@ static int config_setup(struct i2s_dai *i2s)
if (!(i2s->quirks & QUIRK_NO_MUXPSR)) {
struct clk *rclksrc = i2s->clk_table[CLK_I2S_RCLK_SRC];
if (i2s->rclk_srcrate == 0 && rclksrc && !IS_ERR(rclksrc))
if (rclksrc && !IS_ERR(rclksrc))
i2s->rclk_srcrate = clk_get_rate(rclksrc);
psr = i2s->rclk_srcrate / i2s->frmclk / rfs;