CLIP_FORMAT_CTRL
u32 clip_format = saa7146_read(dev, CLIP_FORMAT_CTRL);
saa7146_write(dev, CLIP_FORMAT_CTRL, clip_format);
u32 clip_format = saa7146_read(dev, CLIP_FORMAT_CTRL);
saa7146_write(dev, CLIP_FORMAT_CTRL, clip_format);