[PATCH v3 02/19] dt-bindings: display: bridge: Add starfive,jh7110-inno-hdmi-controller

[Michal Wilczynski]

Add the dt-binding for the StarFive JH7110 Innosilicon HDMI controller
(DRM bridge).

This device is the second child of the starfive,jh7110-hdmi-subsystem node.
It consumes register access clocks (sys, mclk, bclk) from the voutcrg and
both the pixel clock (pclk) and the PHY from its hdmi_phy sibling.

Signed-off-by: Michal Wilczynski <m.wilczynski@xxxxxxxxxxx>
---
 .../starfive,jh7110-inno-hdmi-controller.yaml      | 121 +++++++++++++++++++++
 1 file changed, 121 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/bridge/starfive,jh7110-inno-hdmi-controller.yaml b/Documentation/devicetree/bindings/display/bridge/starfive,jh7110-inno-hdmi-controller.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..ea489a7722d0279b3ed67bc2576ec144e31bd05d
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/starfive,jh7110-inno-hdmi-controller.yaml
@@ -0,0 +1,121 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/starfive,jh7110-inno-hdmi-controller.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: StarFive JH7110 Innosilicon HDMI Controller
+
+maintainers:
+  - Michal Wilczynski <m.wilczynski@xxxxxxxxxxx>
+
+description:
+  The controller portion of the StarFive JH7110 INNO HDMI IP.
+
+properties:
+  compatible:
+    const: starfive,jh7110-inno-hdmi-controller
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: The HDMI controller main clock
+      - description: Audio master clock
+      - description: Audio bit clock, from the I2S transmitter
+      - description: The pixel clock, generated by the PHY
+
+  clock-names:
+    items:
+      - const: pclk
+      - const: mclk
+      - const: bclk
+      - const: pixel
+
+  resets:
+    maxItems: 1
+
+  phys:
+    maxItems: 1
+
+  starfive,vout-syscon:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      Phandle to the dom_vout_syscon system controller, which holds the mux
+      selecting the DC8200 output that drives the HDMI transmitter.
+
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+
+    properties:
+      port@0:
+        $ref: /schemas/graph.yaml#/properties/port
+        description:
+          Input from the DC8200. The remote port number selects the DC8200
+          panel and the remote endpoint number the interface on that panel,
+          0 for DPI and 1 for DP.
+
+      port@1:
+        $ref: /schemas/graph.yaml#/properties/port
+        description: Output to the HDMI connector.
+
+    required:
+      - port@0
+      - port@1
+
+required:
+  - compatible
+  - interrupts
+  - clocks
+  - clock-names
+  - resets
+  - phys
+  - starfive,vout-syscon
+  - ports
+
+additionalProperties: false
+
+examples:
+  # Shown as a child of the HDMI subsystem node; see
+  # Documentation/devicetree/bindings/mfd/starfive,jh7110-hdmi-subsystem.yaml
+  # for the full node.
+  - |
+    #include <dt-bindings/clock/starfive,jh7110-crg.h>
+    #include <dt-bindings/reset/starfive,jh7110-crg.h>
+
+    controller {
+        compatible = "starfive,jh7110-inno-hdmi-controller";
+        clocks = <&voutcrg JH7110_VOUTCLK_HDMI_TX_SYS>,
+                 <&voutcrg JH7110_VOUTCLK_HDMI_TX_MCLK>,
+                 <&voutcrg JH7110_VOUTCLK_HDMI_TX_BCLK>,
+                 <&hdmi_phy>;
+        clock-names = "pclk", "mclk", "bclk", "pixel";
+        interrupts = <99>;
+        phys = <&hdmi_phy>;
+        resets = <&voutcrg JH7110_VOUTRST_HDMI_TX_HDMI>;
+        starfive,vout-syscon = <&vout_syscon>;
+
+        ports {
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            port@0 {
+                reg = <0>;
+
+                endpoint {
+                    remote-endpoint = <&dpu_out_dpi0>;
+                };
+            };
+
+            port@1 {
+                reg = <1>;
+
+                endpoint {
+                    remote-endpoint = <&hdmi_con_in>;
+                };
+            };
+        };
+    };
+
+...

-- 
2.34.1