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: be5b96f0e411 ("sunxi: setup simplefb for Allwinner DE2")
Signed-off-by: Icenowy Zheng <icen...@aosc.io>
---
drivers/video/sunxi/sunxi_de2.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/video/sunxi/sunxi_de2.c b/drivers/video/sunxi/sunxi_de2.c
index 4ed035d556..8333ddc44c 100644
--- a/drivers/video/sunxi/sunxi_de2.c
+++ b/drivers/video/sunxi/sunxi_de2.c
@@ -347,6 +347,9 @@ int sunxi_simplefb_setup(void *blob)
if (ret) {
debug("DE2 not present\n");
return 0;
+ } else if (!device_active(de2)) {
+ debug("DE2 present but not probed\n");
+ return 0;
}
ret = uclass_find_device_by_name(UCLASS_DISPLAY,
--
2.18.0
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