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ASoC: da7219: software reset codec at probe

Message ID 1473861960-7596-1-git-send-email-zhengxing@rock-chips.com (mailing list archive)
State Accepted
Commit 96fc294cf6cb27f01a865959b9637d0aea3b57c2
Headers show

Commit Message

zhengxing Sept. 14, 2016, 2:06 p.m. UTC 
From: Hsin-Yu Chao <hychao@chromium.org>

On some platform da7219 codec has persistent power across reboot
so it doesn't reset and cause abnormal jack detection.
Workaround this issue by doing software reset at probe.

Signed-off-by: Hsin-Yu Chao <hychao@chromium.org>
Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
---

 sound/soc/codecs/da7219.c | 8 ++++++++
 1 file changed, 8 insertions(+)
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Patch

diff --git a/sound/soc/codecs/da7219.c b/sound/soc/codecs/da7219.c
index 737e914..9d08c11 100644
--- a/sound/soc/codecs/da7219.c
+++ b/sound/soc/codecs/da7219.c
@@ -1941,6 +1941,14 @@  static int da7219_i2c_probe(struct i2c_client *i2c,
 		return ret;
 	}
 
+	/* Software reset codec. */
+	regmap_write_bits(da7219->regmap, DA7219_ACCDET_CONFIG_1,
+			  DA7219_ACCDET_EN_MASK, 0);
+	regmap_write_bits(da7219->regmap, DA7219_CIF_CTRL,
+			  DA7219_CIF_REG_SOFT_RESET_MASK, 0);
+	regmap_write_bits(da7219->regmap, DA7219_SYSTEM_ACTIVE,
+			  DA7219_SYSTEM_ACTIVE_MASK, 0);
+
 	ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_da7219,
 				     &da7219_dai, 1);
 	if (ret < 0) {