Hi, Dne sreda, 25. april 2018 ob 15:55:48 CEST je Maxime Ripard napisal(a): > 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? > This smells like HDMI voltage regulator not being enabled. You have to include patch like this: https://github.com/Icenowy/linux/commit/ 27d12cd2fe89f64c5f4d5224984d4cbfcb7ee137 I guess it won't apply as-is, since it's based on my old, out-of-tree hdmi driver. Best regards, Jernej -- 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
