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video: sunxi: de2: fix SimpleFB node creation when DE2 not probed 

Sometimes when a monitor without EDID information is plugged, the DE2
won't be probed (because of lack of timing information), but the HDMI
node is probed, thus a SimpleFB node with invalid information will be
populated.

Also detect whether DE2 is probed when creating SimpleFB node.

Fixes: be5b96f0e4 ("sunxi: setup simplefb for Allwinner DE2")
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Acked-by: Jagan Teki <jagan@openedev.com>
This commit is contained in:
Icenowy Zheng 2018-07-27 23:50:53 +08:00 committed by Jagan Teki
parent a8407b5642
commit b29712e941
1 changed files with 3 additions and 0 deletions
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3
drivers/video/sunxi/sunxi_de2.c
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@ -347,6 +347,9 @@ int sunxi_simplefb_setup(void *blob)
if (ret) { if (ret) {
debug("DE2 not present\n"); debug("DE2 not present\n");
return 0; return 0;
} else if (!device_active(de2)) {
debug("DE2 present but not probed\n");
return 0;
} }
ret = uclass_find_device_by_name(UCLASS_DISPLAY, ret = uclass_find_device_by_name(UCLASS_DISPLAY,