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[25/31] ASoC: da7213: Avoid setting PLL when closing audio stream

Message ID 20241106081826.1211088-26-claudiu.beznea.uj@bp.renesas.com (mailing list archive)
State Superseded
Delegated to: Kieran Bingham
Headers show
Series Add audio support for the Renesas RZ/G3S SoC | expand

Commit Message

Claudiu Beznea Nov. 6, 2024, 8:18 a.m. UTC 
From: Hao Bui <hao.bui.yg@renesas.com>

When audio stream is closing, audio frequency is set to 0 by ALSA but
codec driver DA7213 does not handle properly in this case. This patch
adds checking of 0Hz frequency to da7213_set_component_sysclk() and avoid
unnecessary PLL settings.

Signed-off-by: Hao Bui <hao.bui.yg@renesas.com>
Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
---
 sound/soc/codecs/da7213.c | 4 ++++
 1 file changed, 4 insertions(+)
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Patch

diff --git a/sound/soc/codecs/da7213.c b/sound/soc/codecs/da7213.c
index 01c78f8032c4..af38b2b5e174 100644
--- a/sound/soc/codecs/da7213.c
+++ b/sound/soc/codecs/da7213.c
@@ -1555,6 +1555,10 @@  static int da7213_set_component_sysclk(struct snd_soc_component *component,
 	if ((da7213->clk_src == clk_id) && (da7213->mclk_rate == freq))
 		return 0;
 
+	/* Maybe audio stream is closing. */
+	if (freq == 0)
+		return 0;
+
 	if (((freq < 5000000) && (freq != 32768)) || (freq > 54000000)) {
 		dev_err(component->dev, "Unsupported MCLK value %d\n",
 			freq);