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SubjectApplied "ASoC: samsung: i2s: Fix prescaler setting for the secondary DAI" to the asoc tree
The patch

ASoC: samsung: i2s: Fix prescaler setting for the secondary DAI

has been applied to the asoc tree at

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From 323fb7b947b265753de34703dbbf8acc8ea3a4de Mon Sep 17 00:00:00 2001
From: Sylwester Nawrocki <>
Date: Thu, 7 Feb 2019 18:00:12 +0100
Subject: [PATCH] ASoC: samsung: i2s: Fix prescaler setting for the secondary

Make sure i2s->rclk_srcrate is properly initialized also during
playback through the secondary DAI.

Signed-off-by: Sylwester Nawrocki <>
Acked-by: Krzysztof Kozlowski <>
Signed-off-by: Mark Brown <>
sound/soc/samsung/i2s.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c
index ce00fe2f6aae..d4bde4834ce5 100644
--- a/sound/soc/samsung/i2s.c
+++ b/sound/soc/samsung/i2s.c
@@ -604,6 +604,7 @@ static int i2s_set_fmt(struct snd_soc_dai *dai,
unsigned int fmt)
struct i2s_dai *i2s = to_info(dai);
+ struct i2s_dai *other = get_other_dai(i2s);
int lrp_shift, sdf_shift, sdf_mask, lrp_rlow, mod_slave;
u32 mod, tmp = 0;
unsigned long flags;
@@ -661,7 +662,8 @@ static int i2s_set_fmt(struct snd_soc_dai *dai,
* CLK_I2S_RCLK_SRC clock is not exposed so we ensure any
* clock configuration assigned in DT is not overwritten.
- if (i2s->rclk_srcrate == 0 && i2s->clk_data.clks == NULL)
+ if (i2s->rclk_srcrate == 0 && i2s->clk_data.clks == NULL &&
+ other->clk_data.clks == NULL)
i2s_set_sysclk(dai, SAMSUNG_I2S_RCLKSRC_0,
@@ -699,6 +701,7 @@ static int i2s_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
struct i2s_dai *i2s = to_info(dai);
+ struct i2s_dai *other = get_other_dai(i2s);
u32 mod, mask = 0, val = 0;
struct clk *rclksrc;
unsigned long flags;
@@ -784,6 +787,9 @@ static int i2s_hw_params(struct snd_pcm_substream *substream,
i2s->frmclk = params_rate(params);

rclksrc = i2s->clk_table[CLK_I2S_RCLK_SRC];
+ if (!rclksrc || IS_ERR(rclksrc))
+ rclksrc = other->clk_table[CLK_I2S_RCLK_SRC];
if (rclksrc && !IS_ERR(rclksrc))
i2s->rclk_srcrate = clk_get_rate(rclksrc);

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