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

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

Based on a similar patch for Koelsch by Hans Verkuil.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/arch/arm/boot/dts/r8a7790-lager.dts b/arch/arm/boot/dts/r8a7790-lager.dts
index f2ea632..7892b11 100644 (file)
--- a/arch/arm/boot/dts/r8a7790-lager.dts
+++ b/arch/arm/boot/dts/r8a7790-lager.dts
@@ -669,11 +669,19 @@
                };
        };
 
+       cec_clock: cec-clock {
+               compatible = "fixed-clock";
+               #clock-cells = <0>;
+               clock-frequency = <12000000>;
+       };
+
        hdmi@39 {
                compatible = "adi,adv7511w";
                reg = <0x39>;
                interrupt-parent = <&gpio1>;
                interrupts = <15 IRQ_TYPE_LEVEL_LOW>;
+               clocks = <&cec_clock>;
+               clock-names = "cec";
 
                adi,input-depth = <8>;
                adi,input-colorspace = "rgb";