For the ov7670 camera to return images at the requested frame rate, it needs to make calculations based on the clock speed, which is a completely external factor (depends on the wiring of the system). On the XO-1.75, which is the only known mmp-camera user, the camera is clocked at 48MHz. Pass this information to the ov7670 driver, to fix an issue where a framerate faster than the requested amount was being provided. Signed-off-by: Daniel Drake <dsd@xxxxxxxxxx> --- drivers/media/video/marvell-ccic/mmp-driver.c | 7 +++++++ 1 file changed, 7 insertions(+) Jon, is it OK to assume that XO-1.75 is the only mmp-camera user? diff --git a/drivers/media/video/marvell-ccic/mmp-driver.c b/drivers/media/video/marvell-ccic/mmp-driver.c index c4c17fe..0ba49c7 100644 --- a/drivers/media/video/marvell-ccic/mmp-driver.c +++ b/drivers/media/video/marvell-ccic/mmp-driver.c @@ -188,6 +188,13 @@ static int mmpcam_probe(struct platform_device *pdev) mcam->chip_id = V4L2_IDENT_ARMADA610; mcam->buffer_mode = B_DMA_sg; spin_lock_init(&mcam->dev_lock); + + /* + * Set the clock speed for the XO-1.75; I don't believe this + * driver has ever run anywhere else. + */ + mcam->clock_speed = 48; + /* * Get our I/O memory. */ -- 1.7.10.1 -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
