shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-08 03:40:35 +09:00
Code Issues Packages Projects Releases Wiki Activity

media: i2c: imx335 fix hdr ae error

Browse Source 
Signed-off-by: Yiqing Zeng <zack.zeng@rock-chips.com>
Change-Id: I6d9f0b66d4743ab55c35fca29c663a0072e7a37c
This commit is contained in:
Yiqing Zeng
2020-10-21 20:37:51 +08:00
committed by Tao Huang
parent d53fca08a0
commit 51e5955309
1 changed files with 14 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
drivers/media/i2c/imx335.c
View File

@@ -8,6 +8,7 @@
* V0.0X01.0X01 support 10bit DOL3
* V0.0X01.0X02 fix set sensor vertical invert failed
* V0.0X01.0X03 add hdr_mode in enum frame interval
* V0.0X01.0X04 fix hdr ae error
*/
#define DEBUG
@@ -30,7 +31,7 @@
#include <linux/pinctrl/consumer.h>
#include <linux/rk-preisp.h>
#define DRIVER_VERSION KERNEL_VERSION(0, 0x01, 0x03)
#define DRIVER_VERSION KERNEL_VERSION(0, 0x01, 0x04)
#ifndef V4L2_CID_DIGITAL_GAIN
#define V4L2_CID_DIGITAL_GAIN V4L2_CID_GAIN
@@ -856,7 +857,7 @@ static int imx335_set_hdrae(struct imx335 *imx335,
struct i2c_client *client = imx335->client;
u32 l_exp_time, m_exp_time, s_exp_time;
u32 l_a_gain, m_a_gain, s_a_gain;
u32 shr1, shr0, rhs1, rhs1_max, rhs1_min;
int shr1, shr0, rhs1, rhs1_max, rhs1_min;
static int rhs1_old = IMX335_RHS1_DEFAULT;
int ret = 0;
u32 fsc;
@@ -921,12 +922,19 @@ static int imx335_set_hdrae(struct imx335 *imx335,
shr0 = fsc - l_exp_time;
rhs1_max = min(RHS1_MAX, shr0 - SHR1_MIN);
rhs1_min = max(SHR1_MIN + 4u, rhs1_old + 2 * BRL - fsc + 2);
rhs1 = clamp(SHR1_MIN + s_exp_time, rhs1_min, rhs1_max);
rhs1_max = (rhs1_max & ~0x7) + 2;
rhs1_min = (SHR1_MIN + 4u + 7u) / 8 * 8 + 2;
rhs1 = SHR1_MIN + s_exp_time;
rhs1 = (rhs1 & ~0x7) + 2; /* shall be 8n + 2 */
if (rhs1 > rhs1_max)
rhs1 = rhs1_max;
if (rhs1 < rhs1_min)
rhs1 = rhs1_min;
dev_dbg(&client->dev,
"line(%d) rhs1 %d, short time %d rhs1_old %d, rhs1_new %d\n",
__LINE__, rhs1, s_exp_time, rhs1_old, rhs1);
"line(%d) rhs1 %d, short time %d rhs1_old %d, rhs1_new %d, rhs1_min %d rhs1_max %d\n",
__LINE__, rhs1, s_exp_time, rhs1_old, rhs1, rhs1_min, rhs1_max);
rhs1_old = rhs1;