[PATCH for v4.9 LTS 67/87] ASoC: rt5645: set sel_i2s_pre_div1 to 2

From	"Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com>
Newsgroups	linux.kernel
Subject	[PATCH for v4.9 LTS 67/87] ASoC: rt5645: set sel_i2s_pre_div1 to 2
Date	2017-07-15 03:30 +0200
Message-ID	<u3k4a-3a5-7@gated-at.bofh.it> (permalink)
References	<u3k49-3a5-3@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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From: Bard Liao <bardliao@realtek.com>

[ Upstream commit 02c5c03283c52157d336abf5e44ffcda10579fbf ]

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>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
---
 sound/soc/codecs/rt5645.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sound/soc/codecs/rt5645.c b/sound/soc/codecs/rt5645.c
index 10c2a564a715..1ac96ef9ee20 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);
-- 
2.11.0

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[PATCH for v4.9 LTS 67/87] ASoC: rt5645: set sel_i2s_pre_div1 to 2 "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-07-15 03:30 +0200

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