Hi Eugen,
On Wed, 13 Feb 2019 at 09:02, <Eugen.Hristev@xxxxxxxxxxxxx> wrote:
>
> Hello Loic,
>
> I am trying to make sensor Omnivision ov5640 work with our Atmel-isc
> controller, I saw you implemented RAW mode for this sensor in the
> driver, so I was hoping I can ask you some things:
>
> I cannot make the RAW bayer format work, BA81 / mbus
> MEDIA_BUS_FMT_SBGGR8_1X8 makes the photo look like a maze of colors...
>
> The sensor works for me in YUYV and RGB565 mode, so I assume the wiring
> is done correctly for my setup
>
> Anything special I need to do for this format to work ?
I definitely need to check with the latest driver version, many
changes have been integrated recently, including clock
autoconfiguration.
Moreover, AFAIU, you are connected via the parallel interface, I only
tested with MIPI/CSI.
I would suggest you adding debug in the ov5640 driver to retrieve
calculated pclk, sysclk, etc...
Also the following lines does'nt look correct anymore:
/*
* All the formats we support have 16 bits per pixel, seems to require
* the same rate than YUV, so we can just use 16 bpp all the time.
*/
rate = mode->vtot * mode->htot * 16;
rate *= ov5640_framerates[sensor->current_fr];
With RAW8, we have 8 bits per pixel, maybe it would worth for testing
purpose to change 16 to 8 and see what happens.
>
> The same RAW BAYER configuration works for me on ov7670 for example...
>
> Unrelated: are you familiar with ov7740 ? This sensor looks to have
> stopped working in latest mediatree : failed to enable streaming.
> (worked perfectly in last stable for me - 4.14...)
No sorry.
Regards,
Loic
