[PATCH 2/2] ASoC: rt5659: Update MCLK rate in set_sysclk()

Sameer Pujar spujar at nvidia.com
Mon Mar 15 18:31:32 CET 2021


Simple-card/audio-graph-card drivers do not handle MCLK clock when it
is specified in the codec device node. The expectation here is that,
the codec should actually own up the MCLK clock and do necessary setup
in the driver.

Suggested-by: Mark Brown <broonie at kernel.org>
Suggested-by: Michael Walle <michael at walle.cc>
Signed-off-by: Sameer Pujar <spujar at nvidia.com>
---
 sound/soc/codecs/rt5659.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/sound/soc/codecs/rt5659.c b/sound/soc/codecs/rt5659.c
index b787515..0af9601 100644
--- a/sound/soc/codecs/rt5659.c
+++ b/sound/soc/codecs/rt5659.c
@@ -3430,12 +3430,17 @@ static int rt5659_set_component_sysclk(struct snd_soc_component *component, int
 {
 	struct rt5659_priv *rt5659 = snd_soc_component_get_drvdata(component);
 	unsigned int reg_val = 0;
+	int ret;
 
 	if (freq == rt5659->sysclk && clk_id == rt5659->sysclk_src)
 		return 0;
 
 	switch (clk_id) {
 	case RT5659_SCLK_S_MCLK:
+		ret = clk_set_rate(rt5659->mclk, freq);
+		if (ret)
+			return ret;
+
 		reg_val |= RT5659_SCLK_SRC_MCLK;
 		break;
 	case RT5659_SCLK_S_PLL1:
-- 
2.7.4



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