The DCU IP has distinct clock inputs for register access and the pixel clocks, at least in some implementations. LS1021a seems to use the same clock, therefore specify the same clock for "dcu" and "pix".
Signed-off-by: Stefan Agner stefan@agner.ch --- arch/arm/boot/dts/ls1021a.dtsi | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/arm/boot/dts/ls1021a.dtsi b/arch/arm/boot/dts/ls1021a.dtsi index 2c84ca2..cd5c76d 100644 --- a/arch/arm/boot/dts/ls1021a.dtsi +++ b/arch/arm/boot/dts/ls1021a.dtsi @@ -443,8 +443,9 @@ compatible = "fsl,ls1021a-dcu"; reg = <0x0 0x2ce0000 0x0 0x10000>; interrupts = <GIC_SPI 172 IRQ_TYPE_LEVEL_HIGH>; - clocks = <&platform_clk 0>; - clock-names = "dcu"; + clocks = <&platform_clk 0>, + <&platform_clk 0>; + clock-names = "dcu", "pix"; big-endian; status = "disabled"; };