linux-kernel - [PATCH AUTOSEL 5.15 16/18] ASoC: rt1308-sdw: add the default value of some registers

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Message-Id: <20221106170509.1580304-16-sashal@kernel.org>
Date:   Sun,  6 Nov 2022 12:05:05 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Shuming Fan <shumingf@...ltek.com>,
        Mark Brown <broonie@...nel.org>,
        Sasha Levin <sashal@...nel.org>, oder_chiou@...ltek.com,
        lgirdwood@...il.com, perex@...ex.cz, tiwai@...e.com,
        alsa-devel@...a-project.org
Subject: [PATCH AUTOSEL 5.15 16/18] ASoC: rt1308-sdw: add the default value of some registers

From: Shuming Fan <shumingf@...ltek.com>

[ Upstream commit 75d8b1662ca5c20cf8365575222abaef18ff1f50 ]

The driver missed the default value of register 0xc070/0xc360.
This patch adds that default value to avoid invalid register access
when the device doesn't be enumerated yet.
BugLink: https://github.com/thesofproject/linux/issues/3924

Signed-off-by: Shuming Fan <shumingf@...ltek.com>
Link: https://lore.kernel.org/r/20221019095715.31082-1-shumingf@realtek.com
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 sound/soc/codecs/rt1308-sdw.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/codecs/rt1308-sdw.h b/sound/soc/codecs/rt1308-sdw.h
index c5ce75666dcc..98293d73ebab 100644
--- a/sound/soc/codecs/rt1308-sdw.h
+++ b/sound/soc/codecs/rt1308-sdw.h
@@ -139,9 +139,11 @@ static const struct reg_default rt1308_reg_defaults[] = {
 	{ 0x3005, 0x23 },
 	{ 0x3008, 0x02 },
 	{ 0x300a, 0x00 },
+	{ 0xc000 | (RT1308_DATA_PATH << 4), 0x00 },
 	{ 0xc003 | (RT1308_DAC_SET << 4), 0x00 },
 	{ 0xc001 | (RT1308_POWER << 4), 0x00 },
 	{ 0xc002 | (RT1308_POWER << 4), 0x00 },
+	{ 0xc000 | (RT1308_POWER_STATUS << 4), 0x00 },
 };
 
 #define RT1308_SDW_OFFSET 0xc000
-- 
2.35.1