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| author | Robby Cai <R63905@freescale.com> | 2014-03-13 20:02:34 +0800 |
|---|---|---|
| committer | Robby Cai <R63905@freescale.com> | 2014-03-14 16:20:14 +0800 |
| commit | 109f7ee66fb8721dfca70d5f0e61509b106d20ea (patch) | |
| tree | 38bf3642011221fb4d36dd82d8d1ebd6f32fcf1b /arch | |
| parent | 5d728eb76f217753d4f6e942b9f0fe2af8646ef7 (diff) | |
ENGR00302869-2 ARM: imx: imx6qdl: enable cfg_clk to make MIPI CSI2 work
The following error was reported.
-----------------------------------------------------------
root@imx6qdlsolo:~# /unit_tests/mxc_v4l2_capture.out -d /dev/video1 1.yuv
in_width = 176, in_height = 144
out_width = 176, out_height = 144
top = 0, left = 0
mipi csi2 can not receive sensor clk!
sensor chip is ov5640_mipi_camera
sensor supported frame size:
640x480
320x240
720x480
720x576
1280x720
1920x1080
2592x1944
176x144
1024x768
sensor frame format: UYVY
sensor frame format: UYVY
sensor frame format: UYVY
sensor frame format: UYVY
sensor frame format: UYVY
sensor frame format: UYVY
sensor frame format: UYVY
sensor frame format: UYVY
sensor frame format: UYVY
mipi csi2 can not receive sensor clk!
mxc_v4l2_s_param: vidioc_int_s_parm returned an error -1
VIDIOC_S_PARM failed
get format failed
-----------------------------------------------------------
Root cause analysis:
It only happens when HDMI is not used/enabled. There is a clock named
video_27m which are needed by HDMI (as isfrclk's parent) and MIPI-CSI2 (as
cfg_clk's parent). MIPI-CSI2 driver is lack of enabling this clock before
start to work and only happen to work when HDMI driver enables this clock.
Signed-off-by: Robby Cai <R63905@freescale.com>
(cherry picked from commit a6bbc7d56f261ab84e04071487264c6a519df758)
Diffstat (limited to 'arch')
0 files changed, 0 insertions, 0 deletions