From 460b15adc9baab3dd403191b14c34647a24c1fcc Mon Sep 17 00:00:00 2001 From: Icenowy Zheng Date: Wed, 1 Nov 2017 22:18:06 +0800 Subject: [PATCH] video: sunxi: de2: fix SimpleFB node creation when HDMI not initialized When HDMI is not initialized (e.g. no monitor is plugged), the current SimpleFB code will still create a broken SimpleFB node. Detect whether HDMI is initialized when creating SimpleFB node. Fixes: be5b96f0e411 ("sunxi: setup simplefb for Allwinner DE2") Signed-off-by: Icenowy Zheng Reviewed-by: Jagan Teki Acked-by: Maxime Ripard --- drivers/video/sunxi/sunxi_de2.c | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) diff --git a/drivers/video/sunxi/sunxi_de2.c b/drivers/video/sunxi/sunxi_de2.c index e890340..6d6bb2e 100644 --- a/drivers/video/sunxi/sunxi_de2.c +++ b/drivers/video/sunxi/sunxi_de2.c @@ -346,13 +346,19 @@ int sunxi_simplefb_setup(void *blob) "sunxi_dw_hdmi", &hdmi); if (ret) { debug("HDMI not present\n"); - return 0; + } else if (device_active(hdmi)) { + if (mux == 0) + pipeline = "mixer0-lcd0-hdmi"; + else + pipeline = "mixer1-lcd1-hdmi"; + } else { + debug("HDMI present but not probed\n"); } - if (mux == 0) - pipeline = "mixer0-lcd0-hdmi"; - else - pipeline = "mixer1-lcd1-hdmi"; + if (!pipeline) { + debug("No active display present\n"); + return 0; + } de2_priv = dev_get_uclass_priv(de2); de2_plat = dev_get_uclass_platdata(de2);