[PATCH v2 1/5] dt-bindings: display: Add Apple pre-DCP display controller bindings

[Sasha Finkelstein via B4 Relay]

From: Sasha Finkelstein <fnkl.kernel at gmail.com>

Add bindings for a secondary display controller present on certain
Apple laptops.

Signed-off-by: Sasha Finkelstein <fnkl.kernel at gmail.com>
---
 .../display/apple,h7-display-pipe-mipi.yaml        | 89 ++++++++++++++++++++++
 .../bindings/display/apple,h7-display-pipe.yaml    | 77 +++++++++++++++++++
 .../bindings/display/panel/apple,summit.yaml       | 58 ++++++++++++++
 3 files changed, 224 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/apple,h7-display-pipe-mipi.yaml b/Documentation/devicetree/bindings/display/apple,h7-display-pipe-mipi.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..2cf2f50e9fc7329a5b424d5ddf8c34cad2ebb6be
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/apple,h7-display-pipe-mipi.yaml
@@ -0,0 +1,89 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/apple,h7-display-pipe-mipi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Apple pre-DCP display controller MIPI interface.
+
+maintainers:
+  - asahi at lists.linux.dev
+  - Sasha Finkelstein <fnkl.kernel at gmail.com>
+
+description:
+  The MIPI controller part of the pre-DCP Apple display controller
+
+allOf:
+  - $ref: dsi-controller.yaml#
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - apple,t8112-display-pipe-mipi
+          - apple,t8103-display-pipe-mipi
+      - const: apple,h7-display-pipe-mipi
+
+  reg:
+    maxItems: 1
+
+  reg-names:
+    const: mipi
+
+  power-domains:
+    maxItems: 1
+
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+
+    properties:
+      port at 0:
+        $ref: /schemas/graph.yaml#/properties/port
+
+      port at 1:
+        $ref: /schemas/graph.yaml#/properties/port
+
+    required:
+      - port at 0
+      - port at 1
+
+  '#address-cells': true
+
+  '#size-cells': true
+
+patternProperties:
+  "^panel@[0-3]$": true
+
+required:
+  - compatible
+  - reg
+  - ports
+
+additionalProperties: false
+
+examples:
+  - |
+    display_dfr: dsi at 228200000 {
+    	compatible = "apple,t8103-display-pipe-mipi", "apple,h7-display-pipe-mipi";
+    	reg-names = "mipi";
+    	reg = <0x28200000 0xc000>;
+    	power-domains = <&ps_dispdfr_mipi>;
+
+    	ports {
+    		#address-cells = <1>;
+    		#size-cells = <0>;
+
+    		dfr_mipi_in: port at 0 {
+    			#address-cells = <1>;
+    			#size-cells = <0>;
+    			reg = <0>;
+    		};
+
+    		dfr_mipi_out: port at 1 {
+    			#address-cells = <1>;
+    			#size-cells = <0>;
+    			reg = <1>;
+    		};
+    	};
+    };
+...
diff --git a/Documentation/devicetree/bindings/display/apple,h7-display-pipe.yaml b/Documentation/devicetree/bindings/display/apple,h7-display-pipe.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..98982da9c5f672167d67e4cd3b47e1fbdafc9510
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/apple,h7-display-pipe.yaml
@@ -0,0 +1,77 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/apple,h7-display-pipe.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Apple pre-DCP display controller.
+
+maintainers:
+  - asahi at lists.linux.dev
+  - Sasha Finkelstein <fnkl.kernel at gmail.com>
+
+description:
+  A secondary display controller used to drive the "touchbar" on certain Apple laptops.
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - apple,t8112-display-pipe
+          - apple,t8103-display-pipe
+      - const: apple,h7-display-pipe
+
+  reg:
+    maxItems: 2
+
+  reg-names:
+    items:
+      - const: be
+      - const: fe
+
+  power-domains:
+    maxItems: 2
+
+  interrupts:
+    maxItems: 2
+
+  interrupt-names:
+    items:
+      - const: be
+      - const: fe
+
+  iommus:
+    maxItems: 1
+
+  port:
+    $ref: /schemas/graph.yaml#/properties/port
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - port
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/apple-aic.h>
+    display_dfr: display-pipe at 228200000 {
+    	compatible = "apple,t8103-display-pipe", "apple,h7-display-pipe";
+    	reg-names = "be", "fe";
+    	reg = <0x28200000 0xc000>,
+    		<0x28400000 0x4000>;
+    	power-domains = <&ps_dispdfr_fe>, <&ps_dispdfr_be>;
+    	interrupt-parent = <&aic>;
+    	interrupts = <AIC_IRQ 502 IRQ_TYPE_LEVEL_HIGH>,
+    		<AIC_IRQ 506 IRQ_TYPE_LEVEL_HIGH>;
+    	interrupt-names = "be", "fe";
+    	iommus = <&displaydfr_dart 0>;
+    	port {
+    		dfr_adp_out_mipi: endpoint {
+    			remote-endpoint = <&dfr_mipi_in_adp>;
+    		};
+    	};
+    };
+...
diff --git a/Documentation/devicetree/bindings/display/panel/apple,summit.yaml b/Documentation/devicetree/bindings/display/panel/apple,summit.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..db14f7af3787076c84ccdda08fedeb8912d5514d
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/apple,summit.yaml
@@ -0,0 +1,58 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/apple,summit.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Apple "Summit" display panel.
+
+maintainers:
+  - asahi at lists.linux.dev
+  - Sasha Finkelstein <fnkl.kernel at gmail.com>
+
+allOf:
+  - $ref: panel-common.yaml#
+  - $ref: /schemas/leds/backlight/common.yaml#
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - apple,j293-summit
+          - apple,j493-summit
+      - const: apple,summit
+
+  reg:
+    maxItems: 1
+
+  max-brightness: true
+
+  port: true
+
+required:
+  - compatible
+  - reg
+  - max-brightness
+  - port
+
+additionalProperties: false
+
+examples:
+  - |
+    dsi {
+    	#address-cells = <1>;
+    	#size-cells = <0>;
+
+    	panel at 0 {
+    		compatible = "apple,j293-summit", "apple,summit";
+    		reg = <0>;
+    		max-brightness = <255>;
+
+    		port {
+    			dfr_panel_in: endpoint {
+    				remote-endpoint = <&dfr_bridge_out>;
+    			};
+    		};
+    	};
+    };
+...

-- 
2.47.1