[1/2] ASoC: rt5645: set sel_i2s_pre_div1 to 2
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Message ID 1482811506-6447-1-git-send-email-bardliao@realtek.com
State Accepted
Commit 02c5c03283c52157d336abf5e44ffcda10579fbf
Headers show

Commit Message

Bard Liao Dec. 27, 2016, 4:05 a.m. UTC
The i2s clock pre-divider 1 is used for both i2s1 and sysclk.
The i2s1 is usually used for the main i2s and the pre-divider
will be set in hw_params function.

However, if i2s2 is used, the pre-divider is not set in the hw_params
function and the default value of i2s clock pre-divider 1 is too high
for sysclk and DMIC usage. Fix by overriding default divider value to 2.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=95681
Tested-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Bard Liao <bardliao@realtek.com>
---
 sound/soc/codecs/rt5645.c | 3 +++
 1 file changed, 3 insertions(+)

Patch
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diff --git a/sound/soc/codecs/rt5645.c b/sound/soc/codecs/rt5645.c
index 10c2a56..1ac96ef 100644
--- a/sound/soc/codecs/rt5645.c
+++ b/sound/soc/codecs/rt5645.c
@@ -3833,6 +3833,9 @@  static int rt5645_i2c_probe(struct i2c_client *i2c,
 		}
 	}
 
+	regmap_update_bits(rt5645->regmap, RT5645_ADDA_CLK1,
+		RT5645_I2S_PD1_MASK, RT5645_I2S_PD1_2);
+
 	if (rt5645->pdata.jd_invert) {
 		regmap_update_bits(rt5645->regmap, RT5645_IRQ_CTRL2,
 			RT5645_JD_1_1_MASK, RT5645_JD_1_1_INV);