| Message ID | 20230530173000.3060865-4-dave.stevenson@raspberrypi.com |
|---|---|
| State | New |
| Headers | show |
| Series | [01/21] media: i2c: imx258: Remove unused defines | expand |
Hi Dave On Tue, May 30, 2023 at 06:29:42PM +0100, Dave Stevenson wrote: > The binned modes set DIG_CROP_X_OFFSET and DIG_CROP_IMAGE_WIDTH > to less than the full image, even though the image being captured > is meant to be a scaled version of the full array size. > > Reduce X_OFFSET to 0, and increase IMAGE_WIDTH to the full array. Do I read it wrong that: Digital crop is processed after image readout operation or in order of [Analog crop -> Binning -> Digital crop] Hence the digital crop output should be set to the frame output size and not to the analog crop sizes ? In facts the DIG_CROP_IMAGE_HEIGHT values match the frame output height. > > Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com> > --- > drivers/media/i2c/imx258.c | 8 ++++---- > 1 file changed, 4 insertions(+), 4 deletions(-) > > diff --git a/drivers/media/i2c/imx258.c b/drivers/media/i2c/imx258.c > index 946b1a12971d..aabd5c3e8af9 100644 > --- a/drivers/media/i2c/imx258.c > +++ b/drivers/media/i2c/imx258.c > @@ -340,11 +340,11 @@ static const struct imx258_reg mode_2104_1560_regs[] = { > { 0x0404, 0x00 }, > { 0x0405, 0x20 }, > { 0x0408, 0x00 }, > - { 0x0409, 0x02 }, > + { 0x0409, 0x00 }, > { 0x040A, 0x00 }, > { 0x040B, 0x00 }, > { 0x040C, 0x10 }, > - { 0x040D, 0x6A }, > + { 0x040D, 0x70 }, DIG_CROP_IMAGE_WIDTH = 0x1070 = 4208 > { 0x040E, 0x06 }, > { 0x040F, 0x18 }, DIG_CROP_IMAGE_HEIGHT = 0x618 = 1560 > { 0x3038, 0x00 }, > @@ -459,11 +459,11 @@ static const struct imx258_reg mode_1048_780_regs[] = { > { 0x0404, 0x00 }, > { 0x0405, 0x40 }, > { 0x0408, 0x00 }, > - { 0x0409, 0x06 }, > + { 0x0409, 0x00 }, > { 0x040A, 0x00 }, > { 0x040B, 0x00 }, > { 0x040C, 0x10 }, > - { 0x040D, 0x64 }, > + { 0x040D, 0x70 }, DIG_CROP_IMAGE_WIDTH = 0x1070 = 4208 > { 0x040E, 0x03 }, > { 0x040F, 0x0C }, DIG_CROP_IMAGE_HEIGHT = 0x30c = 780 Should DIG_CROP_IMAGE_WIDTH be set to 2104 and 1048 respectively ? > { 0x3038, 0x00 }, > -- > 2.25.1 >
diff --git a/drivers/media/i2c/imx258.c b/drivers/media/i2c/imx258.c index 946b1a12971d..aabd5c3e8af9 100644 --- a/drivers/media/i2c/imx258.c +++ b/drivers/media/i2c/imx258.c @@ -340,11 +340,11 @@ static const struct imx258_reg mode_2104_1560_regs[] = { { 0x0404, 0x00 }, { 0x0405, 0x20 }, { 0x0408, 0x00 }, - { 0x0409, 0x02 }, + { 0x0409, 0x00 }, { 0x040A, 0x00 }, { 0x040B, 0x00 }, { 0x040C, 0x10 }, - { 0x040D, 0x6A }, + { 0x040D, 0x70 }, { 0x040E, 0x06 }, { 0x040F, 0x18 }, { 0x3038, 0x00 }, @@ -459,11 +459,11 @@ static const struct imx258_reg mode_1048_780_regs[] = { { 0x0404, 0x00 }, { 0x0405, 0x40 }, { 0x0408, 0x00 }, - { 0x0409, 0x06 }, + { 0x0409, 0x00 }, { 0x040A, 0x00 }, { 0x040B, 0x00 }, { 0x040C, 0x10 }, - { 0x040D, 0x64 }, + { 0x040D, 0x70 }, { 0x040E, 0x03 }, { 0x040F, 0x0C }, { 0x3038, 0x00 },
The binned modes set DIG_CROP_X_OFFSET and DIG_CROP_IMAGE_WIDTH to less than the full image, even though the image being captured is meant to be a scaled version of the full array size. Reduce X_OFFSET to 0, and increase IMAGE_WIDTH to the full array. Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com> --- drivers/media/i2c/imx258.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)