On Wed, Apr 25, 2018 at 06:29:05PM +0530, Jagan Teki wrote: > On Tue, Apr 24, 2018 at 7:38 PM, Maxime Ripard > <maxime.ripard@xxxxxxxxxxx> wrote: > > On Tue, Apr 24, 2018 at 07:04:12PM +0530, Jagan Teki wrote: > >> 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 > > > > That doesn't seem to work so well for LVDS. > > > >> [ 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 > > > > A good guess would be that you can't get the EDIDs for some > > reason. Have you tried forcing a mode to see if the display part > > already works? > > Yes I've forced and used custom EDID with 1024x786 bin and observed > that the bin is able to load. > > [ 0.262973] [drm] No driver support for vblank timestamp query. > [ 0.263842] [drm] Got built-in EDID base block and 0 extensions > from "edid/1024x768.bin" for connector It's not really clear, is it displaying something? Maxime -- Maxime Ripard, Bootlin (formerly Free Electrons) Embedded Linux and Kernel engineering https://bootlin.com
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