Hello, first of all, I am not sure if this goes to linux-rockchip at lists.infradead.org or dri-devel at lists.freedesktop.org Please, tell me if I have chosen the wrong list. In 4.16-rc7 the HDMI video works with minor issues, but it is perfectly usable. In 4.17-rc1 the HDMI port is not detected at all. Here are the messages from dmesg that I think are relevant: Linux version 4.16.0-rc7+ (vj at alarm) (gcc version 7.3.0 (GCC)) #15 SMP Mon Mar 26 19:03:44 CEST 2018 iommu: Adding device ff8f0000.vop to group 0 iommu: Adding device ff900000.vop to group 1 rockchip-drm display-subsystem: bound ff8f0000.vop (ops vop_component_ops) rockchip-drm display-subsystem: bound ff900000.vop (ops vop_component_ops) rockchip-drm display-subsystem: failed to bind ff940000.hdmi (ops dw_hdmi_rockchip_ops): -EPROBE_DEFER rockchip-drm display-subsystem: master bind failed: -EPROBE_DEFER rockchip-drm display-subsystem: bound ff8f0000.vop (ops vop_component_ops) rockchip-drm display-subsystem: bound ff900000.vop (ops vop_component_ops) dwhdmi-rockchip ff940000.hdmi: Detected HDMI TX controller v2.11a with HDCP (DWC HDMI 2.0 TX PHY) rockchip-drm display-subsystem: bound ff940000.hdmi (ops dw_hdmi_rockchip_ops) [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). [drm] No driver support for vblank timestamp query. Console: switching to colour frame buffer device 240x67 rockchip-drm display-subsystem: fb0: frame buffer device [drm] Initialized rockchip 1.0.0 20140818 for display-subsystem on minor 0 Linux version 4.17.0-rc1+ (vj at alarm) (gcc version 7.3.0 (GCC)) #1 SMP Mon Apr 16 19:42:50 CEST 2018 rk_iommu ff8f3f00.iommu: Failed to get clk 'iface': -ENOENT rk_iommu: probe of ff8f3f00.iommu failed with error -ENOENT rk_iommu ff903f00.iommu: Failed to get clk 'iface': -ENOENT rk_iommu: probe of ff903f00.iommu failed with error -ENOENT rockchip-drm display-subsystem: Linked as a consumer to ff8f0000.vop rockchip-drm display-subsystem: Linked as a consumer to ff900000.vop rockchip-drm display-subsystem: Linked as a consumer to ff940000.hdmi rockchip-drm display-subsystem: master bind failed: -12 rockchip-vop: probe of ff900000.vop failed with error -12 While fixing this issue, I can help debugging and testing. Regards, Vicente.
