Add the DU device with a disabled state. Boards that want to enable the
DU need to specify the output topology

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas at ideasonboard.com>
---
 arch/arm/boot/dts/r8a7779.dtsi | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/arch/arm/boot/dts/r8a7779.dtsi b/arch/arm/boot/dts/r8a7779.dtsi
index 559788b..9689314 100644
--- a/arch/arm/boot/dts/r8a7779.dtsi
+++ b/arch/arm/boot/dts/r8a7779.dtsi
@@ -379,6 +379,30 @@
                status = "disabled";
        };

+       du: du at fff80000 {
+               compatible = "renesas,du-r8a7779";
+               reg = <0 0xfff80000 0 0x40000>;
+               interrupts = <0 31 IRQ_TYPE_LEVEL_HIGH>;
+               clocks = <&mstp1_clks R8A7779_CLK_DU>;
+               status = "disabled";
+
+               ports {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+
+                       port at 0 {
+                               reg = <0>;
+                               du_out_rgb0: endpoint {
+                               };
+                       };
+                       port at 1 {
+                               reg = <1>;
+                               du_out_rgb1: endpoint {
+                               };
+                       };
+               };
+       };
+
        clocks {
                #address-cells = <1>;
                #size-cells = <1>;
-- 
1.8.5.5

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