Regression: HDMI stopped working on rk3399-sapphire in 4.17-rc1

[Heiko Stuebner]

Hi Vicente,

Am Montag, 16. April 2018, 23:18:27 CEST schrieb Vicente Bergas:
> 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.

Best would be having both in the Cc 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.

I do belive
	https://patchwork.codeaurora.org/patch/495129/
should do the trick. Needs a respin to make it a bit more
beatiful, but should restore your display output again nevertheless.


Heiko