ARM: dts: koelsch: Add CEC clock for HDMI transmitter

The adv7511 on the Koelsch board has a 12 MHz fixed clock
for the CEC block. Specify this in the dts to enable CEC support.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/arch/arm/boot/dts/r8a7791-koelsch.dts b/arch/arm/boot/dts/r8a7791-koelsch.dts
index dc8ed02..0ce0b27 100644 (file)
--- a/arch/arm/boot/dts/r8a7791-koelsch.dts
+++ b/arch/arm/boot/dts/r8a7791-koelsch.dts
@@ -642,11 +642,19 @@
                };
        };
 
+       cec_clock: cec-clock {
+               compatible = "fixed-clock";
+               #clock-cells = <0>;
+               clock-frequency = <12000000>;
+       };
+
        hdmi@39 {
                compatible = "adi,adv7511w";
                reg = <0x39>;
                interrupt-parent = <&gpio3>;
                interrupts = <29 IRQ_TYPE_LEVEL_LOW>;
+               clocks = <&cec_clock>;
+               clock-names = "cec";
 
                adi,input-depth = <8>;
                adi,input-colorspace = "rgb";