Hi,
We have designed a custom board based on AM5728 processor and Connected VOUT1 port to the display.
We are using SDK6.03 for development. we are facing issue in bringing up the interface.
Modetest command is not listing the display device and omapdrm is failing.
Following is the log--
root@am57xx-evm:~# dmesg | grep dss
[ 1.908598] omapdss_dss 58000000.dss: Looking up vdda_video-supply from device tree
[ 2.691523] omapdss_dss 58000000.dss: Looking up vdda_video-supply from device tree
[ 2.751597] omapdss_dss 58000000.dss: Looking up vdda_video-supply from device tree
[ 2.793675] omapdss_dss 58000000.dss: Looking up vdda_video-supply from device tree
[ 2.817967] omapdss_dss 58000000.dss: Looking up vdda_video-supply from device tree
[ 6.363581] omapdss_dss 58000000.dss: Looking up vdda_video-supply from device tree
[ 6.596106] omapdss_dss 58000000.dss: Looking up vdda_video-supply from device tree
[ 6.637796] omapdss_dss 58000000.dss: Looking up vdda_video-supply from device tree
[ 6.702444] omapdss_dss 58000000.dss: Looking up vdda_video-supply from device tree
[ 7.424565] omapdss_dss 58000000.dss: Looking up vdda_video-supply from device tree
[ 7.612077] omapdss_dss 58000000.dss: Looking up vdda_video-supply from device tree
[ 7.991583] omapdss_dss 58000000.dss: Looking up vdda_video-supply from device tree
[ 8.325998] omapdss_dss 58000000.dss: Looking up vdda_video-supply from device tree
[ 8.488687] omapdss_dss 58000000.dss: Looking up vdda_video-supply from device tree
[ 8.602681] omapdss_dss 58000000.dss: Looking up vdda_video-supply from device tree
[ 8.729333] omapdss_dss 58000000.dss: Looking up vdda_video-supply from device tree
[ 8.933501] omapdss_dss 58000000.dss: Looking up vdda_video-supply from device tree
[ 9.161712] omapdss_dss 58000000.dss: Looking up vdda_video-supply from device tree
[ 10.026752] omapdss_dss 58000000.dss: Looking up vdda_video-supply from device tree
[ 10.118953] omapdss_dss 58000000.dss: Looking up vdda_video-supply from device tree
[ 10.342703] omapdss_dss 58000000.dss: Looking up vdda_video-supply from device tree
[ 10.349123] omapdss_dss 58000000.dss: Looking up vdda_video-supply from device tree
[ 10.748133] omapdss_dss 58000000.dss: Looking up vdda_video-supply from device tree
[ 12.679166] omapdss_dss 58000000.dss: Looking up vdda_video-supply from device tree
[ 13.023418] omapdss_dss 58000000.dss: Looking up vdda_video-supply from device tree
[ 13.546295] omapdss_dss 58000000.dss: Looking up vdda_video-supply from device tree
[ 13.720591] omapdss_dss 58000000.dss: Looking up vdda_video-supply from device tree
[ 14.930919] omapdss_dss 58000000.dss: Looking up vdda_video-supply from device tree
[ 15.103982] omapdss_dss 58000000.dss: Looking up vdda_video-supply from device tree
[ 15.128657] omapdss_dss 58000000.dss: Looking up vdda_video-supply from device tree
[ 15.385358] omapdss_dss 58000000.dss: Looking up vdda_video-supply from device tree
root@am57xx-evm:~# dmesg | grep drm
[ 10.348056] [drm] Initialized pvr 1.17.4948957 20110701 for 56000000.gpu on minor 0
root@am57xx-evm:~# dmesg | grep disp
[ 1.912462] panel-simple display: Looking up power-supply from device tree
[ 1.912473] panel-simple display: Looking up power-supply property in node /display failed
[ 1.912493] panel-simple display: display supply power not found, using dummy regulator
[ 1.920608] panel-simple display: Linked as a consumer to regulator.0
[ 1.927086] panel-simple display: GPIO lookup for consumer enable
[ 1.927093] panel-simple display: using device tree for GPIO lookup
[ 1.927109] of_get_named_gpiod_flags: can't parse 'enable-gpios' property of node '/display[0]'
[ 1.927122] of_get_named_gpiod_flags: can't parse 'enable-gpio' property of node '/display[0]'
[ 1.927131] panel-simple display: using lookup tables for GPIO lookup
[ 1.927138] panel-simple display: No GPIO consumer enable found
root@am57xx-evm:~# modetest
trying to open device 'i915'...failed
trying to open device 'amdgpu'...failed
trying to open device 'radeon'...failed
trying to open device 'nouveau'...failed
trying to open device 'vmwgfx'...failed
trying to open device 'omapdrm'...failed
trying to open device 'exynos'...failed
trying to open device 'tilcdc'...failed
trying to open device 'msm'...failed
trying to open device 'sti'...failed
trying to open device 'tegra'...failed
trying to open device 'imx-drm'...failed
trying to open device 'rockchip'...failed
trying to open device 'atmel-hlcdc'...failed
trying to open device 'fsl-dcu-drm'...failed
trying to open device 'vc4'...failed
trying to open device 'virtio_gpu'...failed
trying to open device 'mediatek'...failed
trying to open device 'meson'...failed
trying to open device 'pl111'...failed
trying to open device 'stm'...failed
no device found
Kernel config file and dts is also attached
Regards,
Vijay
