Allwinner A64 has display engine pipeline like other Allwinner SOC's A83T/H3/H5. A64 DE2 behaviour similar to Allwinner A83T where mixer0, connected to tcon0 with RGB, LVDS MIPI-DSI and mixer1, connected to tcon1 with HDMI. This series merely concentrated on HDMI pipeline and rest will add eventually. patch 1: dt-bindings for a64 DE2 CCU patch 2: a64 DE2 CCU node addition patch 3: dt-bindings for a64 DE2 pipeline patch 4 - 5: dt-bindings for a64 mixer0 and tcon-lcd patch 6: a64 DE2 pipeline node addition patch 7 - 8: dt-bindings for a64 HDMI and HDMI PHY patch 9: a64 HDMI nodes addition patch 10 - 11: dt-bindings for a64 mixer1 and tcon-tv patch 12: a64 HDMI pipeline patch 13: enable HDMI out on bananpi-m64 Tested HDMI on bananapi-m64 (along with DE2 SRAM C changes from [1] thread), able to detect the HDMI but, no penguins on screen. Request for any suggestions. Test log on Bananpi-m64: [ 0.247631] sun4i-drm display-engine: bound 1100000.mixer (ops sun8i_mixer_ops) [ 0.256717] sun4i-drm display-engine: bound 1200000.mixer (ops sun8i_mixer_ops) [ 0.256783] sun4i-tcon 1c0c000.lcd-controller: Missing LVDS properties, Please upgrade your DT [ 0.256792] sun4i-tcon 1c0c000.lcd-controller: LVDS output disabled [ 0.257081] sun4i-drm display-engine: No panel or bridge found... RGB output disabled [ 0.257099] sun4i-drm display-engine: bound 1c0c000.lcd-controller (ops sun4i_tcon_ops) [ 0.257273] sun4i-drm display-engine: No panel or bridge found... RGB output disabled [ 0.257288] sun4i-drm display-engine: bound 1c0d000.lcd-controller (ops sun4i_tcon_ops) [ 0.258176] sun8i-dw-hdmi 1ee0000.hdmi: Detected HDMI TX controller v1.32a with HDCP (sun8i_dw_hdmi_p) [ 0.258596] sun8i-dw-hdmi 1ee0000.hdmi: registered DesignWare HDMI I2C bus driver [ 0.259188] sun4i-drm display-engine: bound 1ee0000.hdmi (ops sun8i_dw_hdmi_ops) [ 0.259199] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). [ 0.259205] [drm] No driver support for vblank timestamp query. [ 0.259308] [drm] Cannot find any crtc or sizes [ 0.259824] [drm] Initialized sun4i-drm 1.0.0 20150629 for display-engine on minor 0 [1] https://lkml.org/lkml/2018/3/16/1096 Jagan Teki (13): dt-bindings: clock: Add compatible for A64 DE2 CCU arm64: dts: allwinner: a64: Add DE2 CCU bindings: display: Add compatible for A64 DE2 pipeline bindings: display: Add compatible for A64 Mixer0 bindings: display: Add compatible for A64 tcon-lcd arm64: dts: allwinner: a64: Add DE2 pipeline bindings: display: Add compatible for A64 HDMI bindings: display: Add compatible for A64 HDMI PHY arm64: dts: allwinner: a64: Add HDMI support bindings: display: Add compatible for A64 Mixer1 bindings: display: Add compatible for A64 tcon-tv arm64: dts: allwinner: a64: Add HDMI pipeline arm64: dts: allwinner: a64: bananapi-m64: Enable HDMI output .../devicetree/bindings/clock/sun8i-de2.txt | 1 + .../bindings/display/sunxi/sun4i-drm.txt | 7 + .../boot/dts/allwinner/sun50i-a64-bananapi-m64.dts | 26 +++ arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 181 +++++++++++++++++++++ drivers/gpu/drm/sun4i/sun4i_drv.c | 1 + include/dt-bindings/clock/sun50i-a64-ccu.h | 2 + 6 files changed, 218 insertions(+) -- 2.14.3 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html