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media: i2c: gc2145: reduce rkisp1: CIF_ISP_PIC_SIZE_ERROR 0x00000001

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Add delay to enable oneframe signal complete, when gc2145 stream off.
For uncompleted frame signal may cause rkisp1: CIF_ISP_PIC_SIZE_ERROR,
when gc2145 switch to new resolutions.

Signed-off-by: Wang Panzhenzhuan <randy.wang@rock-chips.com>
Change-Id: I6be22471fabfba5da2cac9806d634837d6a08fb9
This commit is contained in:
Wang Panzhenzhuan
2020-09-18 17:40:10 +08:00
committed by Tao Huang
parent 93ae71db76
commit 5e0cb7287b
1 changed files with 12 additions and 1 deletions
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13
drivers/media/i2c/gc2145.c
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@@ -9,6 +9,7 @@
* V0.0X01.0X02 fix mclk issue when probe multiple camera.
* V0.0X01.0X03 fix gc2145 exposure issues.
* V0.0X01.0X04 add enum_frame_interval function.
* V0.0X01.0X05 reduce rkisp1: CIF_ISP_PIC_SIZE_ERROR 0x00000001.
*/
#include <linux/clk.h>
@@ -40,7 +41,7 @@
#include <media/v4l2-mediabus.h>
#include <media/v4l2-subdev.h>
#define DRIVER_VERSION KERNEL_VERSION(0, 0x01, 0x4)
#define DRIVER_VERSION KERNEL_VERSION(0, 0x01, 0x5)
#define DRIVER_NAME "gc2145"
#define GC2145_PIXEL_RATE (120 * 1000 * 1000)
@@ -2364,6 +2365,11 @@ static int gc2145_s_stream(struct v4l2_subdev *sd, int on)
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct gc2145 *gc2145 = to_gc2145(sd);
int ret = 0;
unsigned int fps;
unsigned int delay_us;
fps = DIV_ROUND_CLOSEST(gc2145->frame_size->max_fps.denominator,
gc2145->frame_size->max_fps.numerator);
dev_info(&client->dev, "%s: on: %d, %dx%d@%d\n", __func__, on,
gc2145->frame_size->width,
@@ -2382,6 +2388,11 @@ static int gc2145_s_stream(struct v4l2_subdev *sd, int on)
/* Stop Streaming Sequence */
gc2145_set_streaming(gc2145, on);
gc2145->streaming = on;
/* delay to enable oneframe complete */
delay_us = 1000 * 1000 / fps;
usleep_range(delay_us, delay_us+10);
dev_info(&client->dev, "%s: on: %d, sleep(%dus)\n",
__func__, on, delay_us);
goto unlock;
}
if (ret)