ASoC: da7213: Avoid setting PLL when closing audio stream

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>
Link: https://patch.msgid.link/20241106081826.1211088-26-claudiu.beznea.uj@bp.renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/codecs/da7213.c b/sound/soc/codecs/da7213.c
index 01c78f8032c4d267ecdfde422489729cc678ba71..af38b2b5e1744abe4a7a1872543000b7b1ce4aa5 100644 (file)
--- 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);