ASoC: rt5645: set sel_i2s_pre_div1 to 2
authorBard Liao <bardliao@realtek.com>
Tue, 27 Dec 2016 04:05:05 +0000 (12:05 +0800)
committerMark Brown <broonie@kernel.org>
Mon, 9 Jan 2017 11:57:27 +0000 (11:57 +0000)
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>
Signed-off-by: Mark Brown <broonie@kernel.org>
sound/soc/codecs/rt5645.c

index 10c2a564a715dc82e198a4bb50c5691662685c7a..1ac96ef9ee2077dc70ba940f939e8162ce1dec26 100644 (file)
@@ -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);