Both SM8550 and SM8650 misuse mdp1-mem interconnect path for the LLCC->EBI path, while it should only be used for the MDP->EBI paths. This kind of misuse can result in bandwidth underflows, possibly degrading picture quality as the required memory bandwidth is divided between all mdpN-mem paths (and LLCC-EBI should not be a part of such division). Drop mdp1-mem paths and use MDP-EBI path directly. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx> --- Changes in v2: - Fixed type in 'degrading' in the commit messages (Konrad) - Link to v1: https://lore.kernel.org/r/20241008-fix-sm8x50-mdp-icc-v1-0-77ffd361b8de@xxxxxxxxxx --- Dmitry Baryshkov (2): arm64: dts: qcom: sm8550: correct MDSS interconnects arm64: dts: qcom: sm8650: correct MDSS interconnects arch/arm64/boot/dts/qcom/sm8550.dtsi | 5 ++--- arch/arm64/boot/dts/qcom/sm8650.dtsi | 5 +---- 2 files changed, 3 insertions(+), 7 deletions(-) --- base-commit: 7f773fd61baa9b136faa5c4e6555aa64c758d07c change-id: 20241006-fix-sm8x50-mdp-icc-138afd0e083a Best regards, -- Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
