[RFC PATCH v2 11/13] drm/msm/dpu: add a field describing inline rotation to dpu_caps

[Dmitry Baryshkov]

On Thu, 25 May 2023 at 02:20, Abhinav Kumar <quic_abhinavk at quicinc.com> wrote:
>
>
>
> On 3/20/2023 6:18 PM, Dmitry Baryshkov wrote:
> > We need to know if the platform supports inline rotation on any of the
> > SSPP blocks or not. Add this information to struct dpu_caps in a form of
> > the boolean field has_inline_rot.
> >
>
> So even for this one, will a helper to detect it from the list of sspps
> be better?
>
> We are now duplicating information from sspp to dpu caps for convenience
> and nothing wrong with it if the helper will get called like every
> atomic check .
>
> But looking at the next patch, it seems we use this information only
> once during dpu_plane_init(), so why not add a helper to find this out?

Sure, why not.

>
> > Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
> > ---
> >   drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c | 1 +
> >   drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h | 2 ++
> >   2 files changed, 3 insertions(+)
> >
> > diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
> > index 2d6944a9679a..33527ec7c938 100644
> > --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
> > +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
> > @@ -489,6 +489,7 @@ static const struct dpu_caps sc7280_dpu_caps = {
> >       .ubwc_version = DPU_HW_UBWC_VER_30,
> >       .has_dim_layer = true,
> >       .has_idle_pc = true,
> > +     .has_inline_rot = true,
> >       .max_linewidth = 2400,
> >       .pixel_ram_size = DEFAULT_PIXEL_RAM_SIZE,
> >       .format_list = plane_formats_yuv,
> > diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
> > index 4847aae78db2..cc64fb2e815f 100644
> > --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
> > +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
> > @@ -400,6 +400,7 @@ struct dpu_rotation_cfg {
> >    * @has_dim_layer      dim layer feature status
> >    * @has_idle_pc        indicate if idle power collapse feature is supported
> >    * @has_3d_merge       indicate if 3D merge is supported
> > + * @has_inline_rot     indicate if inline rotation is supported
> >    * @max_linewidth      max linewidth for sspp
> >    * @pixel_ram_size     size of latency hiding and de-tiling buffer in bytes
> >    * @max_hdeci_exp      max horizontal decimation supported (max is 2^value)
> > @@ -416,6 +417,7 @@ struct dpu_caps {
> >       bool has_dim_layer;
> >       bool has_idle_pc;
> >       bool has_3d_merge;
> > +     bool has_inline_rot;
> >       /* SSPP limits */
> >       u32 max_linewidth;
> >       u32 pixel_ram_size;



-- 
With best wishes
Dmitry