[U-Boot] rk3288: HDMI out causing boot hang

[Jagan Teki]

Hi All,

Did anyone tried HDMI out on rk3288? Enabling HDMI out causing boot
hang, during stdout initialization from console.c

Enabled below configs and stdin/out/err environment to probe the
DM_VIDEO, seems like the console initialization hangs during stdout
initialization.

Log:
Model: Tinker-RK3288
DRAM:  2 GiB
MMC:   dwmmc at ff0c0000: 1
Loading Environment from MMC... OK
1. console_init_r
2. console_init_r
2.1 console_init_r
rk3288_vop_probe
vop at ff930000: probing regulator 'vcc18_lcd'
vop at ff930000: probing regulator 'VCC18_LCD'
vop at ff930000: probing regulator 'vdd10_lcd_pwren_h'
vop at ff930000: probing regulator 'vdd10_lcd'
vop at ff930000: probing regulator 'VDD10_LCD'
vop at ff930000: probing regulator 'vcc33_lcd'
rk_display_init(vop at ff930000, 2139095040, endpoint at 0)
vop_id=0
remote vop_id=0
rk_display_init(vop at ff930000): no UCLASS_DISPLAY for remote-endpoint
Device failed: ret=-22
rk_display_init(vop at ff930000, 2139095040, endpoint at 1)
vop_id=1
remote vop_id=0
Found device 'hdmi at ff980000', disp_uc_priv=7cf71710
rk3288_hdmi_probe
hdmi at ff980000: probing regulator 'vcc50_hdmi'
rk_hdmi_probe: 1
rk_hdmi_probe: 2
rk_hdmi_probe: done!
fb=7f800000, size=2560 1440
rk3288_vop_probe done!

Changes:
+CONFIG_DM_VIDEO=y
+CONFIG_DISPLAY=y
+CONFIG_VIDEO_ROCKCHIP=y
+CONFIG_DISPLAY_ROCKCHIP_HDMI=y
+CONFIG_CONSOLE_SCROLL_LINES=10

+#define ROCKCHIP_DEVICE_SETTINGS \
+               "stdout=serial,vidconsole\0" \
+               "stderr=serial,vidconsole\0"

Any inputs?

Jagan.