[PATCH v4 17/25] drm/msm/dpu: Fail atomic_check if CWB and CDM are enabled

[Dmitry Baryshkov]

On Thu, Dec 26, 2024 at 02:51:12PM -0800, Jessica Zhang wrote:
> 
> 
> On 12/19/2024 9:44 PM, Dmitry Baryshkov wrote:
> > On Mon, Dec 16, 2024 at 04:43:28PM -0800, Jessica Zhang wrote:
> > > We cannot support both CWB and CDM simultaneously as this would require
> > > 2 CDM blocks and currently our hardware only supports 1 CDM block at
> > > most.
> > 
> > Why would CWB require a second CDM block? I think that YUV output over
> > DP (needs_cdm = true) and RGB output over WB (cwb_enabled = true) should
> > work. Am I wrong?
> 
> Hey Dmitry,
> 
> No, I think your usecase should work. In that case, I can change this so
> that it only fails if both DP and WB are requesting CDM simultaneously.

Sounds good to me, thank you!.


-- 
With best wishes
Dmitry