diff mbox series

[RESEND] ASoC: codecs: es8316: Fix HW rate calculation for 48Mhz MCLK

Message ID 20241227202751.244954-1-posteuca@mutex.one
State New
Headers show
Series [RESEND] ASoC: codecs: es8316: Fix HW rate calculation for 48Mhz MCLK | expand

Commit Message

Marian Postevca Dec. 27, 2024, 8:27 p.m. UTC
For 48Mhz MCLK systems the calculation of the HW rate is broken,
and will not produce even one sane rate. Since es83xx supports
the option to halve MCLK, calculate also rates with MCLK/2.

Signed-off-by: Marian Postevca <posteuca@mutex.one>
---
 sound/soc/codecs/es8316.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/sound/soc/codecs/es8316.c b/sound/soc/codecs/es8316.c
index 61729e5b50a8..f508df01145b 100644
--- a/sound/soc/codecs/es8316.c
+++ b/sound/soc/codecs/es8316.c
@@ -39,7 +39,9 @@  struct es8316_priv {
 	struct snd_soc_jack *jack;
 	int irq;
 	unsigned int sysclk;
-	unsigned int allowed_rates[ARRAY_SIZE(supported_mclk_lrck_ratios)];
+	/* ES83xx supports halving the MCLK so it supports twice as many rates
+	 */
+	unsigned int allowed_rates[ARRAY_SIZE(supported_mclk_lrck_ratios) * 2];
 	struct snd_pcm_hw_constraint_list sysclk_constraints;
 	bool jd_inverted;
 };
@@ -386,6 +388,12 @@  static int es8316_set_dai_sysclk(struct snd_soc_dai *codec_dai,
 
 		if (freq % ratio == 0)
 			es8316->allowed_rates[count++] = freq / ratio;
+
+		/* We also check if the halved MCLK produces a valid rate
+		 * since the codec supports halving the MCLK.
+		 */
+		if ((freq / ratio) % 2 == 0)
+			es8316->allowed_rates[count++] = freq / ratio / 2;
 	}
 
 	if (count) {