Since commit ef4ce6df3289 "video: stm32: stm32_ltdc: fix data enable polarity" The panel display output wasn't functional anymore. Device tree display-timings de-active property value must be updated to 1.
Signed-off-by: Patrice Chotard patrice.chotard@foss.st.com ---
arch/arm/dts/stm32f746-disco-u-boot.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/dts/stm32f746-disco-u-boot.dtsi b/arch/arm/dts/stm32f746-disco-u-boot.dtsi index f88466fa60..a4ce936d7d 100644 --- a/arch/arm/dts/stm32f746-disco-u-boot.dtsi +++ b/arch/arm/dts/stm32f746-disco-u-boot.dtsi @@ -58,7 +58,7 @@ vsync-len = <10>; hsync-active = <0>; vsync-active = <0>; - de-active = <0>; + de-active = <1>; pixelclk-active = <1>; }; };