[PATCH v11 20/24] arm64: dts: rockchip: enable vop2 and hdmi tx on rock-3a

[Peter Geis]

On Tue, May 10, 2022 at 4:54 PM Peter Geis <pgwipeout at gmail.com> wrote:
>
> On Tue, May 10, 2022 at 9:49 AM Piotr Oniszczuk
> <piotr.oniszczuk at gmail.com> wrote:
> >
> >
> >
> > > Wiadomość napisana przez Peter Geis <pgwipeout at gmail.com> w dniu 10.05.2022, o godz. 14:08:
> > >
> > >
> > > You are on the clk_rtc32k_frac which is a fractional divider that is
> > > fed from the 24m clock. Your clock likely isn't the issue here. I'd
> > > recommend setting up the cec-gpio node to validate your hardware
> > > works.
> >
> > Peter,
> >
> > Here is what i done to verify my rock3-a HW:
> >
> > 1.download & burn on SD Radxa Ubuntu
> > 2.boot and install v4l-utils
> > 3.run cec-compliance -v -T. It fails with error -22
> > 4.decompile Ubunntu DT.
> > 5.Check what HDMITX_CEC_M hdmi uses. It was M0
> > 6.Chenge to HDMITX_CEC_M1; compile dtb; install on sd
> > 7.reboot.
> > 8.cec-compliance -v -T gives all tests OK
> > 9.cec-ctl --image-view-on -t0 turns-on my TV
> >
> > hope this proves my HW is ok?
> >
>
> That does show that the hardware works with the oem image. It does not
> unfortunately prove if it works with your current dts. cec-gpio will
> show if it's an issue with the cec controller or an external problem.

I've pulled your dts and with a few fixes got a working system from
it. At least on the v1.1 board cec is functional:
Total for dwhdmi-rockchip device /dev/cec0: 1, Succeeded: 1, Failed:
0, Warnings: 0