[PATCH v1 1/4] arm64: dts: mediatek: mt8188: Add base display controller graph

[AngeloGioacchino Del Regno]

The display related IPs in MT8188 are flexible and support being
interconnected with different instances of DDP IPs and/or with
different DDP IPs, forming a full Display Data Path that ends
with an actual display output, which is board specific.

Add a common graph in the main mt8188.dtsi devicetree, which is
shared between all of the currently supported boards.
All boards featuring any display functionality will extend this
common graph to hook the display controller of the SoC to their
specific output port(s).

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno at collabora.com>
---
 arch/arm64/boot/dts/mediatek/mt8188.dtsi | 140 +++++++++++++++++++++++
 1 file changed, 140 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8188.dtsi b/arch/arm64/boot/dts/mediatek/mt8188.dtsi
index c226998b7e47..4437b1820f26 100644
--- a/arch/arm64/boot/dts/mediatek/mt8188.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8188.dtsi
@@ -2868,6 +2868,23 @@ ovl0: ovl at 1c000000 {
 			iommus = <&vdo_iommu M4U_PORT_L0_DISP_OVL0_RDMA0>;
 			power-domains = <&spm MT8188_POWER_DOMAIN_VDOSYS0>;
 			mediatek,gce-client-reg = <&gce0 SUBSYS_1c00XXXX 0x0000 0x1000>;
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port at 0 {
+					reg = <0>;
+					ovl0_in: endpoint { };
+				};
+
+				port at 1 {
+					reg = <1>;
+					ovl0_out: endpoint {
+						remote-endpoint = <&rdma0_in>;
+					};
+				};
+			};
 		};
 
 		rdma0: rdma at 1c002000 {
@@ -2878,6 +2895,25 @@ rdma0: rdma at 1c002000 {
 			iommus = <&vdo_iommu M4U_PORT_L1_DISP_RDMA0>;
 			power-domains = <&spm MT8188_POWER_DOMAIN_VDOSYS0>;
 			mediatek,gce-client-reg = <&gce0 SUBSYS_1c00XXXX 0x2000 0x1000>;
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port at 0 {
+					reg = <0>;
+					rdma0_in: endpoint {
+						remote-endpoint = <&ovl0_out>;
+					};
+				};
+
+				port at 1 {
+					reg = <1>;
+					rdma0_out: endpoint {
+						remote-endpoint = <&color0_in>;
+					};
+				};
+			};
 		};
 
 		color0: color at 1c003000 {
@@ -2887,6 +2923,25 @@ color0: color at 1c003000 {
 			interrupts = <GIC_SPI 639 IRQ_TYPE_LEVEL_HIGH 0>;
 			power-domains = <&spm MT8188_POWER_DOMAIN_VDOSYS0>;
 			mediatek,gce-client-reg = <&gce0 SUBSYS_1c00XXXX 0x3000 0x1000>;
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port at 0 {
+					reg = <0>;
+					color0_in: endpoint {
+						remote-endpoint = <&rdma0_out>;
+					};
+				};
+
+				port at 1 {
+					reg = <1>;
+					color0_out: endpoint {
+						remote-endpoint = <&ccorr0_in>;
+					};
+				};
+			};
 		};
 
 		ccorr0: ccorr at 1c004000 {
@@ -2896,6 +2951,25 @@ ccorr0: ccorr at 1c004000 {
 			interrupts = <GIC_SPI 640 IRQ_TYPE_LEVEL_HIGH 0>;
 			power-domains = <&spm MT8188_POWER_DOMAIN_VDOSYS0>;
 			mediatek,gce-client-reg = <&gce0 SUBSYS_1c00XXXX 0x4000 0x1000>;
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port at 0 {
+					reg = <0>;
+					ccorr0_in: endpoint {
+						remote-endpoint = <&color0_out>;
+					};
+				};
+
+				port at 1 {
+					reg = <1>;
+					ccorr0_out: endpoint {
+						remote-endpoint = <&aal0_in>;
+					};
+				};
+			};
 		};
 
 		aal0: aal at 1c005000 {
@@ -2905,6 +2979,25 @@ aal0: aal at 1c005000 {
 			interrupts = <GIC_SPI 641 IRQ_TYPE_LEVEL_HIGH 0>;
 			power-domains = <&spm MT8188_POWER_DOMAIN_VDOSYS0>;
 			mediatek,gce-client-reg = <&gce0 SUBSYS_1c00XXXX 0x5000 0x1000>;
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port at 0 {
+					reg = <0>;
+					aal0_in: endpoint {
+						remote-endpoint = <&ccorr0_out>;
+					};
+				};
+
+				port at 1 {
+					reg = <1>;
+					aal0_out: endpoint {
+						remote-endpoint = <&gamma0_in>;
+					};
+				};
+			};
 		};
 
 		gamma0: gamma at 1c006000 {
@@ -2914,6 +3007,23 @@ gamma0: gamma at 1c006000 {
 			interrupts = <GIC_SPI 642 IRQ_TYPE_LEVEL_HIGH 0>;
 			power-domains = <&spm MT8188_POWER_DOMAIN_VDOSYS0>;
 			mediatek,gce-client-reg = <&gce0 SUBSYS_1c00XXXX 0x6000 0x1000>;
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port at 0 {
+					reg = <0>;
+					gamma0_in: endpoint {
+						remote-endpoint = <&aal0_out>;
+					};
+				};
+
+				port at 1 {
+					reg = <1>;
+					gamma0_out: endpoint { };
+				};
+			};
 		};
 
 		dither0: dither at 1c007000 {
@@ -2923,6 +3033,21 @@ dither0: dither at 1c007000 {
 			interrupts = <GIC_SPI 643 IRQ_TYPE_LEVEL_HIGH 0>;
 			power-domains = <&spm MT8188_POWER_DOMAIN_VDOSYS0>;
 			mediatek,gce-client-reg = <&gce0 SUBSYS_1c00XXXX 0x7000 0x1000>;
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port at 0 {
+					reg = <0>;
+					dither0_in: endpoint { };
+				};
+
+				port at 1 {
+					reg = <1>;
+					dither0_out: endpoint { };
+				};
+			};
 		};
 
 		disp_dsi0: dsi at 1c008000 {
@@ -3005,6 +3130,21 @@ postmask0: postmask at 1c01a000 {
 			interrupts = <GIC_SPI 661 IRQ_TYPE_LEVEL_HIGH 0>;
 			power-domains = <&spm MT8188_POWER_DOMAIN_VDOSYS0>;
 			mediatek,gce-client-reg = <&gce0 SUBSYS_1c01XXXX 0xa000 0x1000>;
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port at 0 {
+					reg = <0>;
+					postmask0_in: endpoint { };
+				};
+
+				port at 1 {
+					reg = <1>;
+					postmask0_out: endpoint { };
+				};
+			};
 		};
 
 		vdosys0: syscon at 1c01d000 {
-- 
2.48.1