Hi, Here is a series that enables the higher resolutions on the HDMI0 Controller found in the BCM2711 (RPi4). In order to work it needs a few adjustments to config.txt, most notably to enable the enable_hdmi_4kp60 option. The firmware also has a glitch at the moment and will not properly release the BSC controllers, which will make the EDID retrieval fail. We can work around this using the following config.txt options: disable_fw_kms_setup=1 hdmi_edid_file:0=1 hdmi_edid_filename:0=1366x768.bin hdmi_ignore_edid:0=1 hdmi_edid_file:1=1 hdmi_edid_filename:1=1366x768.bin hdmi_ignore_edid:1=1 A fix will come for the firmware eventually. Let me know what you think, Maxime --- Changes from v1: - Dropped the range accessors - Drop the mention of force_turbo - Reordered the SCRAMBLER_CTL register to match the offset - Removed duplicate HDMI_14_MAX_TMDS_CLK define - Warn about enable_hdmi_4kp60 only if there's some modes that can't be reached - Rework the BVB clock computation Maxime Ripard (5): drm/vc4: hvs: Make the HVS bind first drm/vc4: hdmi: Properly compute the BVB clock rate drm/vc4: hdmi: Check and warn if we can't reach 4kp60 frequencies drm/vc4: hdmi: Enable the scrambler drm/vc4: hdmi: Raise the maximum clock rate drivers/gpu/drm/vc4/vc4_drv.c | 11 ++- drivers/gpu/drm/vc4/vc4_hdmi.c | 101 +++++++++++++++++++++++++--- drivers/gpu/drm/vc4/vc4_hdmi.h | 8 +++ drivers/gpu/drm/vc4/vc4_hdmi_regs.h | 3 + 4 files changed, 113 insertions(+), 10 deletions(-) -- 2.30.2 _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
