Hi everyone, There is a problem that the output does not work at a resolution exceeding FHD. To solve this, we need to adjust the bvb clock at a resolution exceeding FHD. Rebased on top of next-20200708 and [1]. [1] : [PATCH v4 00/78] drm/vc4: Support BCM2711 Display Pipeline (Maxime's patchset) Hoegeun Kwon (3): clk: bcm: rpi: Add register to control pixel bvb clk ARM: dts: bcm2711: Add bvb clock for hdmi-pixel drm/vc4: hdmi: Add pixel bvb clock control arch/arm/boot/dts/bcm2711-rpi-4-b.dts | 6 ++++-- drivers/clk/bcm/clk-raspberrypi.c | 1 + drivers/gpu/drm/vc4/vc4_hdmi.c | 25 +++++++++++++++++++++++++ drivers/gpu/drm/vc4/vc4_hdmi.h | 1 + 4 files changed, 31 insertions(+), 2 deletions(-) -- 2.17.1