Re: [PATCH v1 11/17] ARM: dts: imx6q-apalis: Add ov5640 mipi csi camera

Max Krummenacher
2022-05-18T14:54:45Z

Hi Fabio

On Wed, May 18, 2022 at 4:25 PM Fabio Estevam <festevam@gmail.com> wrote:
>
> Hi Max,
>
> On Wed, May 18, 2022 at 11:21 AM Max Krummenacher <max.oss.09@gmail.com> wrote:
>
> > In my (limited) testing I saw no issues that the camera would not come up.
> > It takes 2 to 3 seconds until the pipeline is running but I noted no hickups.
> > I did this with setting the resolution to 640x480 and 1920x1080 which
> > probably would not relate to the LP-11 issue you mention.
> >
> > I.e. I set up the v4l2 pipeline and start capture to the screen as follows:
>
> Just curious: which baseboard did you use to test the ov5640 camera?
>
> Most likely there was an issue with the customer's baseboard that
> prevented the camera capture to start.

I used an 'Apalis Evaluation Board' with an 'Apalis iMX6 Mezannine V2.0A'.
Now I did retry and it works equally well on an 'Ixora V1.1A'

Note that in the beginning the camera module required the SoM to provide
a 24MHz clock. The V1.1B HW version then got its local oscillator and the
clock input no longer requires a clock. That may or may not have been the
issue your customer saw.

Max