From: Shuming Fan <shumingf@realtek.com>
Date: Mon, 25 Nov 2019 09:19:40 +0000 (+0800)
Subject: ASoC: rt5682: fix i2c arbitration lost issue
X-Git-Tag: v5.15~4747^2~20^2~20
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=bc094709de0192a756c6946a7c89c543243ae609;p=platform%2Fkernel%2Flinux-starfive.git

ASoC: rt5682: fix i2c arbitration lost issue

This patch modified the HW initial setting to fix i2c arbitration lost issue.

Signed-off-by: Shuming Fan <shumingf@realtek.com>
Link: https://lore.kernel.org/r/20191125091940.11953-1-shumingf@realtek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
---

diff --git a/sound/soc/codecs/rt5682.c b/sound/soc/codecs/rt5682.c
index 35dcec1..9feba9a2 100644
--- a/sound/soc/codecs/rt5682.c
+++ b/sound/soc/codecs/rt5682.c
@@ -73,6 +73,7 @@ struct rt5682_priv {
 static const struct reg_sequence patch_list[] = {
 	{RT5682_HP_IMP_SENS_CTRL_19, 0x1000},
 	{RT5682_DAC_ADC_DIG_VOL1, 0xa020},
+	{RT5682_I2C_CTRL, 0x000f},
 };
 
 static const struct reg_default rt5682_reg[] = {
@@ -2496,6 +2497,7 @@ static void rt5682_calibrate(struct rt5682_priv *rt5682)
 	mutex_lock(&rt5682->calibrate_mutex);
 
 	rt5682_reset(rt5682->regmap);
+	regmap_write(rt5682->regmap, RT5682_I2C_CTRL, 0x000f);
 	regmap_write(rt5682->regmap, RT5682_PWR_ANLG_1, 0xa2af);
 	usleep_range(15000, 20000);
 	regmap_write(rt5682->regmap, RT5682_PWR_ANLG_1, 0xf2af);