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media: i2c: sc2310: fix bug for gain function error

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Signed-off-by: Zhenke Fan <fanzy.fan@rock-chips.com>
Change-Id: I839c0434eda11f66484a9b617cd1c5c346b3a204
This commit is contained in:
Zhenke Fan
2020-12-29 16:51:28 +08:00
committed by Tao Huang
parent 6e31f87379
commit 8baa7b5eaa
1 changed files with 3 additions and 3 deletions
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6
drivers/media/i2c/sc2310.c
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@@ -81,7 +81,7 @@
#define SC2310_SF_REG_DGAIN_FINE 0x3e11
#define SC2310_GAIN_MIN 0x40
#define SC2310_GAIN_MAX 0x8000
#define SC2310_GAIN_MAX (44 * 32 * 64)
#define SC2310_GAIN_STEP 1
#define SC2310_GAIN_DEFAULT 0x40
@@ -919,11 +919,11 @@ static void sc2310_get_gain_reg(u32 val, u32 *again_reg, u32 *again_fine_reg,
u32 again = 0;
u32 dgain = 0;
if (val <= 1024) {
if (val <= 2764) {
again = val;
dgain = 128;
} else {
again = 1024;
again = 2764;
dgain = val * 128 / again;
}