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

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Hi Andy,

On Mon, Mar 07, 2022 at 08:18:08PM +0800, Andy Yan wrote:
> Hi Sascha:
> 
> On 2/25/22 15:51, Sascha Hauer wrote:
> > From: Andy Yan <andy.yan@xxxxxxxxxxxxxx>
> > 
> > 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:

I used weston 9.0.90 during testing. I'll try to reproduce the issue
with weston 10.

Could you maybe have a look at the HCLK issue we are discussing? This
thread could use some input from someone who has contact to the hardware
guys.

Regards,
  Sascha


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