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media: i2c: gc4023 fix gain err bug

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Signed-off-by: Yiqing Zeng <zack.zeng@rock-chips.com>
Change-Id: I0043db47c133ac8171f570f195a853b2cba0a426
This commit is contained in:
Yiqing Zeng
2022-06-14 19:53:50 +08:00
committed by Tao Huang
parent 1a457360e5
commit d1e3960225
1 changed files with 3 additions and 5 deletions
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8
drivers/media/i2c/gc4023.c
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@@ -601,15 +601,13 @@ static int gc4023_set_gain_reg(struct gc4023 *gc4023, u32 gain)
if (gain < 64)
gain = 64;
total = sizeof(gain_level_table) / sizeof(u32) - 1;
total = ARRAY_SIZE(gain_level_table) - 1;
for (i = 0; i < total; i++) {
if (gain_level_table[i] <= gain &&
gain < gain_level_table[i + 1])
break;
}
tol_dig_gain = gain * 64 / gain_level_table[i];
if (i >= total)
i = total - 1;
gc4023_write_reg(gc4023->client, 0x614,
GC4023_REG_VALUE_08BIT, reg_val_table_liner[i][0]);
@@ -627,9 +625,9 @@ static int gc4023_set_gain_reg(struct gc4023 *gc4023, u32 gain)
GC4023_REG_VALUE_08BIT, reg_val_table_liner[i][6]);
gc4023_write_reg(gc4023->client, 0x20e,
gc4023_write_reg(gc4023->client, 0x64,
GC4023_REG_VALUE_08BIT, (tol_dig_gain >> 6));
gc4023_write_reg(gc4023->client, 0x20f,
gc4023_write_reg(gc4023->client, 0x65,
GC4023_REG_VALUE_08BIT, ((tol_dig_gain & 0x3f) << 2));
return 0;
}