[PATCH v7 22/24] drm: rockchip: Add VOP2 driver

[Daniel Stone]

Hi Andy,

On Mon, 7 Mar 2022 at 12:18, Andy Yan <andy.yan at rock-chips.com> wrote:
> On 2/25/22 15:51, Sascha Hauer wrote:
> > The VOP2 unit is found on Rockchip SoCs beginning with rk3566/rk3568.
> > It replaces the VOP unit found in the older Rockchip SoCs.
> >
> > This driver has been derived from the downstream Rockchip Kernel and
> > heavily modified:
> >
> > - All nonstandard DRM properties have been removed
> > - dropped struct vop2_plane_state and pass around less data between
> >    functions
> > - Dropped all DRM_FORMAT_* not known on upstream
> > - rework register access to get rid of excessively used macros
> > - Drop all waiting for framesyncs
> >
> > The driver is tested with HDMI and MIPI-DSI display on a RK3568-EVB
> > board. Overlay support is tested with the modetest utility. AFBC support
> > on the cluster windows is tested with weston-simple-dmabuf-egl on
> > weston using the (yet to be upstreamed) panfrost driver support.
>
> When run a weston 10.0.0:
>
>   # export XDG_RUNTIME_DIR=/tmp
>   # weston --backend=drm-backend.so --use-pixma --tty=2
> --continue=without-input
>
> I got the following error:
>
> drm_atomic_check_only [PLANE:31:Smart0-win0] CRTC set but no FB

Can you please start Weston with --logger-scopes=log,drm-backend and
attach the output?

Cheers,
Daniel