Commit f4ee80c9 authored by Sheng Nan's avatar Sheng Nan Committed by Jason Liu

ENGR00234362 Camera: ov5640_mipi: wait for sensor stable before streamon

ov5642 add some delay to wait for sensor stable after S_PARM.
And ov5640_mipi should keep the same behavior.
So the upper layer can trust the first frame comes out of ov5640_mipi.

- delay added according to the recommended time from ov company
Signed-off-by: default avatarSheng Nan <b38800@freescale.com>
parent 46ffead5
......@@ -1216,7 +1216,7 @@ static int ov5640_init_mode(enum ov5640_frame_rate frame_rate,
s32 ArySize = 0;
int retval = 0;
void *mipi_csi2_info;
u32 mipi_reg;
u32 mipi_reg, msec_wait4stable = 0;
enum ov5640_downsize_mode dn_mode, orig_dn_mode;
if ((mode > ov5640_mode_MAX || mode < ov5640_mode_MIN)
......@@ -1288,6 +1288,20 @@ static int ov5640_init_mode(enum ov5640_frame_rate frame_rate,
OV5640_set_bandingfilter();
ov5640_set_virtual_channel(ov5640_data.csi);
/* add delay to wait for sensor stable */
if (mode == ov5640_mode_QSXGA_2592_1944) {
/* dump the first two frames: 1/7.5*2
* the frame rate of QSXGA is 7.5fps */
msec_wait4stable = 267;
} else if (frame_rate == ov5640_15_fps) {
/* dump the first nine frames: 1/15*9 */
msec_wait4stable = 600;
} else if (frame_rate == ov5640_30_fps) {
/* dump the first nine frames: 1/30*9 */
msec_wait4stable = 300;
}
msleep(msec_wait4stable);
if (mipi_csi2_info) {
unsigned int i;
......
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