From 849ea478685de9902af850d53328232fae2c44b5 Mon Sep 17 00:00:00 2001
From: Zefa Chen <zefa.chen@rock-chips.com>
Date: Mon, 11 Aug 2025 15:42:51 +0800
Subject: [PATCH] media: i2c: sc831ai: fix the probability of horizontal
 stripes caused by unstable DVDD

Change-Id: I6097bd8ce66149a3849961e0a88d48c1b7de4ce5
Signed-off-by: Zefa Chen <zefa.chen@rock-chips.com>
---
 drivers/media/i2c/sc831ai.c | 82 +++++++++++++++++++++++--------------
 1 file changed, 52 insertions(+), 30 deletions(-)

diff --git a/drivers/media/i2c/sc831ai.c b/drivers/media/i2c/sc831ai.c
index 05853cb67609..e626b9566f88 100644
--- a/drivers/media/i2c/sc831ai.c
+++ b/drivers/media/i2c/sc831ai.c
@@ -199,7 +199,7 @@ static __maybe_unused const struct regval sc831ai_2lane_linear10bit_3840x2160_re
 	{0x320d, 0x68},
 	{0x320e, 0x08},
 	{0x320f, 0xca},
-	{0x3301, 0x28},
+	{0x3301, 0x0a},
 	{0x3302, 0x10},
 	{0x3303, 0x10},
 	{0x3304, 0x68},
@@ -212,7 +212,7 @@ static __maybe_unused const struct regval sc831ai_2lane_linear10bit_3840x2160_re
 	{0x330b, 0xf8},
 	{0x330c, 0x10},
 	{0x330d, 0x08},
-	{0x330e, 0x36},
+	{0x330e, 0x3c},
 	{0x331e, 0x41},
 	{0x331f, 0x71},
 	{0x3333, 0x10},
@@ -220,7 +220,9 @@ static __maybe_unused const struct regval sc831ai_2lane_linear10bit_3840x2160_re
 	{0x334c, 0x10},
 	{0x335d, 0x60},
 	{0x3364, 0x5e},
+	{0x3366, 0x01},
 	{0x3367, 0x04},
+	{0x338f, 0x80},
 	{0x3390, 0x01},
 	{0x3391, 0x03},
 	{0x3392, 0x07},
@@ -230,19 +232,19 @@ static __maybe_unused const struct regval sc831ai_2lane_linear10bit_3840x2160_re
 	{0x3396, 0x01},
 	{0x3397, 0x03},
 	{0x3398, 0x07},
-	{0x3399, 0x28},
-	{0x339a, 0x4c},
+	{0x3399, 0x0e},
+	{0x339a, 0x12},
 	{0x339b, 0x4c},
 	{0x339c, 0x4c},
 	{0x33ad, 0x24},
-	{0x33ae, 0x4e},
-	{0x33af, 0x80},
+	{0x33ae, 0x58},
+	{0x33af, 0x88},
 	{0x33b2, 0x50},
 	{0x33b3, 0x20},
 	{0x33f8, 0x00},
 	{0x33f9, 0x88},
 	{0x33fa, 0x00},
-	{0x33fb, 0x98},
+	{0x33fb, 0xa0},
 	{0x33fc, 0x43},
 	{0x33fd, 0x47},
 	{0x349f, 0x03},
@@ -253,30 +255,30 @@ static __maybe_unused const struct regval sc831ai_2lane_linear10bit_3840x2160_re
 	{0x34aa, 0x01},
 	{0x34ab, 0x10},
 	{0x34ac, 0x01},
-	{0x34ad, 0x20},
+	{0x34ad, 0x28},
 	{0x34f8, 0x43},
 	{0x34f9, 0x08},
 	{0x3632, 0x64},
-	{0x363b, 0x18},
+	{0x363b, 0x16},
 	{0x363c, 0x0e},
 	{0x363d, 0x8e},
 	{0x363e, 0x6c},
 	{0x3654, 0x00},
-	{0x3674, 0xb2},
-	{0x3675, 0xa4},
-	{0x3676, 0x88},
+	{0x3674, 0x94},
+	{0x3675, 0x84},
+	{0x3676, 0x68},
 	{0x367c, 0x41},
 	{0x367d, 0x43},
 	{0x3690, 0x35},
-	{0x3691, 0x36},
-	{0x3692, 0x66},
+	{0x3691, 0x35},
+	{0x3692, 0x45},
 	{0x3693, 0x40},
 	{0x3694, 0x41},
-	{0x3696, 0x85},
-	{0x3697, 0x85},
-	{0x3698, 0x83},
-	{0x3699, 0x92},
-	{0x369a, 0x99},
+	{0x3696, 0x81},
+	{0x3697, 0x80},
+	{0x3698, 0x80},
+	{0x3699, 0x83},
+	{0x369a, 0x81},
 	{0x369b, 0xff},
 	{0x369c, 0xff},
 	{0x369d, 0xff},
@@ -293,40 +295,60 @@ static __maybe_unused const struct regval sc831ai_2lane_linear10bit_3840x2160_re
 	{0x36ec, 0x43},
 	{0x36ed, 0x3a},
 	{0x370f, 0x01},
+	{0x3721, 0x6c},
+	{0x3724, 0xe5},
+	{0x3725, 0xa8},
 	{0x3727, 0x14},
-	{0x37b0, 0x03},
-	{0x37b1, 0x8b},
-	{0x37b2, 0x8b},
+	{0x37b0, 0x17},
+	{0x37b1, 0x9b},
+	{0x37b2, 0xfb},
 	{0x37b3, 0x41},
 	{0x37b4, 0x43},
 	{0x37fa, 0xc7},
 	{0x37fb, 0x31},
-	{0x37fc, 0x10},
+	{0x37fc, 0x00},
 	{0x37fd, 0x36},
-	{0x3905, 0xad},
+	{0x3905, 0x0f},
 	{0x391f, 0x41},
+	{0x3933, 0x80},
+	{0x3934, 0xd3},
+	{0x3937, 0x70},
+	{0x3939, 0x0f},
+	{0x393a, 0xf8},
 	{0x3e00, 0x01},
 	{0x3e01, 0x17},
 	{0x3e02, 0x00},
+	{0x3e16, 0x00},
+	{0x3e17, 0xbc},
+	{0x3e18, 0x00},
+	{0x3e19, 0xbc},
+	{0x4424, 0x02},
 	{0x4509, 0x1a},
-	{0x450d, 0x0a},
-	{0x5780, 0x66},
-	{0x5784, 0x08},
-	{0x5785, 0x04},
+	{0x450d, 0x0b},
+	{0x4800, 0x24},
+	{0x5000, 0x0e},
+	{0x550e, 0x02},
+	{0x550f, 0x1c},
+	{0x5510, 0x28},
+	{0x575c, 0x10},
+	{0x575d, 0x08},
+	{0x5780, 0x76},
+	{0x5784, 0x10},
+	{0x5785, 0x08},
 	{0x5787, 0x0a},
 	{0x5788, 0x0a},
 	{0x5789, 0x08},
 	{0x578a, 0x0a},
 	{0x578b, 0x0a},
 	{0x578c, 0x08},
-	{0x578d, 0x40},
+	{0x578d, 0x41},
 	{0x5790, 0x08},
 	{0x5791, 0x04},
 	{0x5792, 0x04},
 	{0x5793, 0x08},
 	{0x5794, 0x04},
 	{0x5795, 0x04},
-	{0x57a8, 0xd0},
+	{0x57a8, 0xd2},
 	{0x57aa, 0x2a},
 	{0x57ab, 0x7f},
 	{0x57ac, 0x00},