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[v2,4/7] ASoC: samsung: i2s: Fix rclk_srcrate handling

Message ID 20180309174858.24017-4-s.nawrocki@samsung.com (mailing list archive)
State New, archived
Headers show

Commit Message

Sylwester Nawrocki/Kernel \(PLT\) /SRPOL/Staff Engineer/Samsung Electronics March 9, 2018, 5:48 p.m. UTC 
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>
---
Changes since v1:
 - none.
---
 sound/soc/samsung/i2s.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c
index c65227e2561c..97fe3f9352c5 100644
--- a/sound/soc/samsung/i2s.c
+++ b/sound/soc/samsung/i2s.c
@@ -897,7 +897,7 @@  static int config_setup(struct i2s_dai *i2s)
 	if (!(i2s->quirks & QUIRK_NO_MUXPSR)) {
 		struct clk *rclksrc = i2s->clock[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;