Hi, Stu: On Tue, 2018-07-24 at 16:17 +0800, Stu Hsieh wrote: > This patch add layer number condition for RDMA to control plane > > When plane init in crtc create, > it use the number of OVL layer to init plane. > That's OVL can read 4 memory address. > > For mt2712 third ddp, it use RDMA to read memory. > RDMA can read 1 memory address, so it just init one plane. > > For compatibility, this patch use two define OVL_LAYER_NR and > RDMA_LAYER_NR to distingush two difference HW engine. > > Signed-off-by: Stu Hsieh <stu.hsieh@xxxxxxxxxxxx> > --- > drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 25 +++++++++++++++++-------- > drivers/gpu/drm/mediatek/mtk_drm_crtc.h | 2 ++ > 2 files changed, 19 insertions(+), 8 deletions(-) > [...] > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.h b/drivers/gpu/drm/mediatek/mtk_drm_crtc.h > index 9d9410c67ae9..b44fefadf14a 100644 > --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.h > +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.h > @@ -18,7 +18,9 @@ > #include "mtk_drm_ddp_comp.h" > #include "mtk_drm_plane.h" > > +#define MAX_LAYER_NR 4 > #define OVL_LAYER_NR 4 > +#define RDMA_LAYER_NR 1 > #define MTK_LUT_SIZE 512 > #define MTK_MAX_BPC 10 > #define MTK_MIN_BPC 3 If the layer number is not fixed in '4', I would like to get this value from component because in some SoC, OVL may have 6 layer. So add an interface to get the max layer number and OVL, RDMA driver would return the number for this SoC. Regards, CK _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
