| Message ID | 20250504101336.18748-7-hdegoede@redhat.com |
|---|---|
| State | New |
| Headers | show |
| Series | media: mt9m114: Changes to make it work with atomisp devices | expand |
diff --git a/drivers/media/i2c/mt9m114.c b/drivers/media/i2c/mt9m114.c index 52337c719e22..ba8b7660f88a 100644 --- a/drivers/media/i2c/mt9m114.c +++ b/drivers/media/i2c/mt9m114.c @@ -331,8 +331,8 @@ */ #define MT9M114_MIN_HBLANK 303 #define MT9M114_MIN_VBLANK 21 -#define MT9M114_DEF_HBLANK 307 -#define MT9M114_DEF_VBLANK 23 +#define MT9M114_DEF_HBLANK 308 +#define MT9M114_DEF_VBLANK 21 #define MT9M114_DEF_FRAME_RATE 30 #define MT9M114_MAX_FRAME_RATE 120
The PLL gets programmed to achieve a 48 MHz pixelclock, with the original vblank + hblank defaults this results in a fps of: 48000000 / ((1296 + 307) * (976 + 23) = 29.974 fps Tweak the defaults to get closer to 30 fps: 48000000 / ((1296 + 308) * (976 + 21) = 30.015 fps This improves things from being 0.026 fps too low to 0.015 fps too high. Signed-off-by: Hans de Goede <hdegoede@redhat.com> --- drivers/media/i2c/mt9m114.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)