Hi Sowjanya, On 29/05/20 04:07, Sowjanya Komatineni wrote: > Hi Luca, > > Quick question regarding IMX274 driver that was up streamed by you. Well, to be fair I only added cropping and made some improvements. > Upstream IMX274 driver programs Y_OUT_SIZE correctly based on IMX274 > datasheet and register mode table for Y_OUT_SIZE where it includes 6 > ignored area of effective pixels + 8 effective margin for color > processing pixels. > > So, Y_OUT_SIZE register value = height + 14 > > But somehow with this we are not seeing full frame on CSI. > > In our internal NVIDIA IMX274 driver, we are programming Y_OUT_SIZE to > exact height Y_OUT_SIZE = height > > So for debug, followed the same and updated upstream IMX274 driver to > program Y_OUT_SIZE = crop.height locally and I see all resolutions > working fine with this. > > Checking with Sony on whats causing sensor not to send full frame when > Y_OUT_SIZE is set to height + 14. > > But thought to check with you in parallel if there are any known issues That's strange. Unfortunately I'm not using imx274 anymore since a long time and don't remember the details, but definitely I did test it and if there had been 14 missing lines I'm pretty sure I would have noticed. I'll see if I can remember anything useful, and in case I'll update you. I would be glad if you can update me on any findings too, maybe they will help in understanding the problem better. Regards, -- Luca
