On Mon, 2 Dec 2024 at 11:05, Xiangxu Yin <quic_xiangxuy@xxxxxxxxxxx> wrote: > > > > On 11/29/2024 9:52 PM, Dmitry Baryshkov wrote: > > On Fri, 29 Nov 2024 at 09:59, Xiangxu Yin <quic_xiangxuy@xxxxxxxxxxx> wrote: > >> > >> Introduce a maximum width constraint for modes during validation. This > >> ensures that the modes are filtered based on hardware capabilities, > >> specifically addressing the line buffer limitations of individual pipes. > > > > This doesn't describe, why this is necessary. What does "buffer > > limitations of individual pipes" mean? > > If the platforms have hw capabilities like being unable to support 8k > > or 10k, it should go to platform data > > > It's SSPP line buffer limitation for this platform and only support to 2160 mode width. > Then, shall I add max_width config to struct msm_dp_desc in next patch? for other platform will set defualt value to ‘DP_MAX_WIDTH 7680' SSPP line buffer limitations are to be handled in the DPU driver. The DP driver shouldn't care about those. > >> > >> Signed-off-by: Xiangxu Yin <quic_xiangxuy@xxxxxxxxxxx> > >> --- > >> drivers/gpu/drm/msm/dp/dp_display.c | 3 +++ > >> drivers/gpu/drm/msm/dp/dp_display.h | 1 + > >> drivers/gpu/drm/msm/dp/dp_panel.c | 13 +++++++++++++ > >> drivers/gpu/drm/msm/dp/dp_panel.h | 1 + > >> 4 files changed, 18 insertions(+) -- With best wishes Dmitry
