diff options
| author | Sandor Yu <R01008@freescale.com> | 2014-07-10 20:58:23 +0800 |
|---|---|---|
| committer | Sandor Yu <R01008@freescale.com> | 2014-07-11 11:02:24 +0800 |
| commit | 06735bf6724f2dad2dcbbfc188c6a17145c7126b (patch) | |
| tree | 9183d84be166ded34dfab67abe968c38baad8b55 | |
| parent | bc4d5e350d39eac36bda25be788ebb162287bbd8 (diff) | |
| download | u-boot-imx-06735bf6724f2dad2dcbbfc188c6a17145c7126b.zip u-boot-imx-06735bf6724f2dad2dcbbfc188c6a17145c7126b.tar.gz u-boot-imx-06735bf6724f2dad2dcbbfc188c6a17145c7126b.tar.bz2 | |
ENGR00321146 gis: faster auto standards detection
Vadc need long time to auto standards detection,
the default standard is NTSC, if vadc connect to PAL
camera and no enough time to detect the video mode,
driver will get wrong standard.
Confirmation from chip design architecture that auto detect function
is not required by rear-view camera application.
Setting register vdec_stddbg standard_filte bits to 0
makes the standard detection faster, the issue duplicate
decrease to 1%.
Signed-off-by: Sandor Yu <R01008@freescale.com>
| -rw-r--r-- | drivers/video/mxc_vadc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/video/mxc_vadc.c b/drivers/video/mxc_vadc.c index b1f7a09..3490871 100644 --- a/drivers/video/mxc_vadc.c +++ b/drivers/video/mxc_vadc.c @@ -213,7 +213,7 @@ static void vdec_init(struct sensor_data *vadc) /* filter the standard detection * enable the comb for the ntsc443 */ - reg32_write(VDEC_STDDBG, 0x23); + reg32_write(VDEC_STDDBG, 0x20); /* setup chroma kill thresh for no chroma */ reg32_write(VDEC_CHBTH, 0x0); |