Hi Kieran,
On Wed, Mar 13, 2019 at 11:12:57AM +0000, Kieran Bingham wrote:
> On 13/03/2019 00:05, Laurent Pinchart wrote:
> > The code that initializes the RPF format-related fields for display
> > pipelines will also be useful for the WPF to implement writeback
> > support. Split it from vsp1_du_atomic_update() to a new
> > vsp1_du_pipeline_set_rwpf_format() function.
> >
> > Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx>
> > ---
> > drivers/media/platform/vsp1/vsp1_drm.c | 55 ++++++++++++++++----------
> > 1 file changed, 35 insertions(+), 20 deletions(-)
> >
> > diff --git a/drivers/media/platform/vsp1/vsp1_drm.c b/drivers/media/platform/vsp1/vsp1_drm.c
> > index 4f1bc51d1ef4..5601a787688b 100644
> > --- a/drivers/media/platform/vsp1/vsp1_drm.c
> > +++ b/drivers/media/platform/vsp1/vsp1_drm.c
> > @@ -566,6 +566,36 @@ static void vsp1_du_pipeline_configure(struct vsp1_pipeline *pipe)
> > vsp1_dl_list_commit(dl, dl_flags);
> > }
> >
> > +static int vsp1_du_pipeline_set_rwpf_format(struct vsp1_device *vsp1,
> > + struct vsp1_rwpf *rwpf,
> > + u32 pixelformat, unsigned int pitch)
> > +{
> > + const struct vsp1_format_info *fmtinfo;
> > + unsigned int chroma_hsub;
> > +
> > + fmtinfo = vsp1_get_format_info(vsp1, pixelformat);
> > + if (!fmtinfo) {
> > + dev_dbg(vsp1->dev, "Unsupported pixel format %08x for RPF\n",
>
> Isn't this now a RWPF ?
It is. I'll drop the "for RPF" part.
> Other than that
>
> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@xxxxxxxxxxxxxxxx>
>
> > + pixelformat);
> > + return -EINVAL;
> > + }
> > +
> > + /*
> > + * Only formats with three planes can affect the chroma planes pitch.
> > + * All formats with two planes have a horizontal subsampling value of 2,
> > + * but combine U and V in a single chroma plane, which thus results in
> > + * the luma plane and chroma plane having the same pitch.
> > + */
> > + chroma_hsub = (fmtinfo->planes == 3) ? fmtinfo->hsub : 1;
> > +
> > + rwpf->fmtinfo = fmtinfo;
> > + rwpf->format.num_planes = fmtinfo->planes;
> > + rwpf->format.plane_fmt[0].bytesperline = pitch;
> > + rwpf->format.plane_fmt[1].bytesperline = pitch / chroma_hsub;
> > +
> > + return 0;
> > +}
> > +
> > /* -----------------------------------------------------------------------------
> > * DU Driver API
> > */
> > @@ -773,9 +803,8 @@ int vsp1_du_atomic_update(struct device *dev, unsigned int pipe_index,
> > {
> > struct vsp1_device *vsp1 = dev_get_drvdata(dev);
> > struct vsp1_drm_pipeline *drm_pipe = &vsp1->drm->pipe[pipe_index];
> > - const struct vsp1_format_info *fmtinfo;
> > - unsigned int chroma_hsub;
> > struct vsp1_rwpf *rpf;
> > + int ret;
> >
> > if (rpf_index >= vsp1->info->rpf_count)
> > return -EINVAL;
> > @@ -808,25 +837,11 @@ int vsp1_du_atomic_update(struct device *dev, unsigned int pipe_index,
> > * Store the format, stride, memory buffer address, crop and compose
> > * rectangles and Z-order position and for the input.
> > */
> > - fmtinfo = vsp1_get_format_info(vsp1, cfg->pixelformat);
> > - if (!fmtinfo) {
> > - dev_dbg(vsp1->dev, "Unsupported pixel format %08x for RPF\n",
> > - cfg->pixelformat);
> > - return -EINVAL;
> > - }
> > + ret = vsp1_du_pipeline_set_rwpf_format(vsp1, rpf, cfg->pixelformat,
> > + cfg->pitch);
> > + if (ret < 0)
> > + return ret;
> >
> > - /*
> > - * Only formats with three planes can affect the chroma planes pitch.
> > - * All formats with two planes have a horizontal subsampling value of 2,
> > - * but combine U and V in a single chroma plane, which thus results in
> > - * the luma plane and chroma plane having the same pitch.
> > - */
> > - chroma_hsub = (fmtinfo->planes == 3) ? fmtinfo->hsub : 1;
> > -
> > - rpf->fmtinfo = fmtinfo;
> > - rpf->format.num_planes = fmtinfo->planes;
> > - rpf->format.plane_fmt[0].bytesperline = cfg->pitch;
> > - rpf->format.plane_fmt[1].bytesperline = cfg->pitch / chroma_hsub;
> > rpf->alpha = cfg->alpha;
> >
> > rpf->mem.addr[0] = cfg->mem[0];
--
Regards,
Laurent Pinchart
