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SubjectRe: [PATCH v2 12/15] drm/mediatek: add callback function to return RDMA layer number
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Hi, CK:

On Fri, 2018-08-03 at 13:13 +0800, CK Hu wrote:
> Hi, Stu:
>
> On Fri, 2018-08-03 at 11:11 +0800, Stu Hsieh wrote:
> > This patch add callback function to return RDMA layer number
> >
> > Signed-off-by: Stu Hsieh <stu.hsieh@mediatek.com>
> > ---
> > drivers/gpu/drm/mediatek/mtk_disp_rdma.c | 10 ++++++++++
> > 1 file changed, 10 insertions(+)
> >
> > diff --git a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
> > index b728f0f42611..8c145a87c9e5 100644
> > --- a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
> > +++ b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
> > @@ -60,6 +60,7 @@
> >
> > struct mtk_disp_rdma_data {
> > unsigned int fifo_size;
> > + unsigned int layer_nr;
> > };
> >
> > /**
> > @@ -194,6 +195,13 @@ static unsigned int rdma_fmt_convert(struct mtk_disp_rdma *rdma,
> > }
> > }
> >
> > +static unsigned int mtk_rdma_layer_nr(struct mtk_ddp_comp *comp)
> > +{
> > + struct mtk_disp_rdma *rdma = comp_to_rdma(comp);
> > +
> > + return rdma->data->layer_nr;
>
> Maybe RDMA always has one layer, so you could just return 1 here.
>
> Regards,
> CK
>
OK

Regards,
Stu

> > +}
> > +
> > static void mtk_rdma_layer_config(struct mtk_ddp_comp *comp, unsigned int idx,
> > struct mtk_plane_state *state)
> > {
> > @@ -227,6 +235,7 @@ static const struct mtk_ddp_comp_funcs mtk_disp_rdma_funcs = {
> > .stop = mtk_rdma_stop,
> > .enable_vblank = mtk_rdma_enable_vblank,
> > .disable_vblank = mtk_rdma_disable_vblank,
> > + .layer_nr = mtk_rdma_layer_nr,
> > .layer_config = mtk_rdma_layer_config,
> > };
> >
> > @@ -329,6 +338,7 @@ static const struct mtk_disp_rdma_data mt2701_rdma_driver_data = {
> >
> > static const struct mtk_disp_rdma_data mt8173_rdma_driver_data = {
> > .fifo_size = SZ_8K,
> > + .layer_nr = 1,
> > };
> >
> > static const struct of_device_id mtk_disp_rdma_driver_dt_match[] = {
>
>


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