[PATCH v4 3/4] dt-bindings: display: rockchip: Add schema for RK3588 HDMI TX Controller

[Cristian Ciocaltea]

Rockchip RK3588 SoC integrates the Synopsys DesignWare HDMI 2.1
Quad-Pixel (QP) TX controller IP.

Since this is a new IP block, quite different from those used in the
previous generations of Rockchip SoCs, add a dedicated binding file.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea at collabora.com>
---
 .../display/rockchip/rockchip,dw-hdmi-qp.yaml      | 170 +++++++++++++++++++++
 1 file changed, 170 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip,dw-hdmi-qp.yaml b/Documentation/devicetree/bindings/display/rockchip/rockchip,dw-hdmi-qp.yaml
new file mode 100644
index 000000000000..de470923d823
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/rockchip/rockchip,dw-hdmi-qp.yaml
@@ -0,0 +1,170 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/rockchip/rockchip,dw-hdmi-qp.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip DW HDMI QP TX Encoder
+
+maintainers:
+  - Cristian Ciocaltea <cristian.ciocaltea at collabora.com>
+
+description:
+  Rockchip RK3588 SoC integrates the Synopsys DesignWare HDMI QP TX controller
+  IP and a HDMI/eDP TX Combo PHY based on a Samsung IP block.
+
+allOf:
+  - $ref: /schemas/display/bridge/synopsys,dw-hdmi-qp.yaml#
+  - $ref: /schemas/sound/dai-common.yaml#
+
+properties:
+  compatible:
+    enum:
+      - rockchip,rk3588-dw-hdmi-qp
+
+  clocks:
+    minItems: 4
+    items:
+      - {}
+      - {}
+      - {}
+      - {}
+      # The next clocks are optional, but shall be specified in this
+      # order when present.
+      - description: TMDS/FRL link clock
+      - description: Video datapath clock
+
+  clock-names:
+    minItems: 4
+    items:
+      - {}
+      - {}
+      - {}
+      - {}
+      - enum: [hdp, hclk_vo1]
+      - const: hclk_vo1
+
+  interrupts:
+    items:
+      - {}
+      - {}
+      - {}
+      - {}
+      - description: HPD interrupt
+
+  interrupt-names:
+    items:
+      - {}
+      - {}
+      - {}
+      - {}
+      - const: hpd
+
+  phys:
+    maxItems: 1
+    description: The HDMI/eDP PHY.
+
+  phy-names:
+    const: hdmi
+
+  power-domains:
+    maxItems: 1
+
+  resets:
+    minItems: 2
+    maxItems: 2
+
+  reset-names:
+    items:
+      - const: ref
+      - const: hdp
+
+  "#sound-dai-cells":
+    const: 0
+
+  rockchip,grf:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      Most HDMI QP related data is accessed through SYS GRF regs.
+
+  rockchip,vo1-grf:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      Additional HDMI QP related data is accessed through VO1 GRF regs.
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - interrupts
+  - interrupt-names
+  - phys
+  - phy-names
+  - ports
+  - resets
+  - reset-names
+  - rockchip,grf
+  - rockchip,vo1-grf
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/rockchip,rk3588-cru.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/power/rk3588-power.h>
+    #include <dt-bindings/reset/rockchip,rk3588-cru.h>
+
+    soc {
+      #address-cells = <2>;
+      #size-cells = <2>;
+
+      hdmi at fde80000 {
+        compatible = "rockchip,rk3588-dw-hdmi-qp";
+        reg = <0x0 0xfde80000 0x0 0x20000>;
+        clocks = <&cru PCLK_HDMITX0>,
+                 <&cru CLK_HDMITX0_EARC>,
+                 <&cru CLK_HDMITX0_REF>,
+                 <&cru MCLK_I2S5_8CH_TX>,
+                 <&cru CLK_HDMIHDP0>,
+                 <&cru HCLK_VO1>;
+        clock-names = "pclk", "earc", "ref", "aud", "hdp", "hclk_vo1";
+        interrupts = <GIC_SPI 169 IRQ_TYPE_LEVEL_HIGH 0>,
+                     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH 0>,
+                     <GIC_SPI 171 IRQ_TYPE_LEVEL_HIGH 0>,
+                     <GIC_SPI 172 IRQ_TYPE_LEVEL_HIGH 0>,
+                     <GIC_SPI 360 IRQ_TYPE_LEVEL_HIGH 0>;
+        interrupt-names = "avp", "cec", "earc", "main", "hpd";
+        phys = <&hdptxphy_hdmi0>;
+        phy-names = "hdmi";
+        power-domains = <&power RK3588_PD_VO1>;
+        resets = <&cru SRST_HDMITX0_REF>, <&cru SRST_HDMIHDP0>;
+        reset-names = "ref", "hdp";
+        rockchip,grf = <&sys_grf>;
+        rockchip,vo1-grf = <&vo1_grf>;
+        #sound-dai-cells = <0>;
+
+        ports {
+          #address-cells = <1>;
+          #size-cells = <0>;
+
+          port at 0 {
+            reg = <0>;
+
+            hdmi0_in_vp0: endpoint {
+                remote-endpoint = <&vp0_out_hdmi0>;
+            };
+          };
+
+          port at 1 {
+            reg = <1>;
+
+            hdmi0_out_con0: endpoint {
+                remote-endpoint = <&hdmi_con0_in>;
+            };
+          };
+        };
+      };
+    };

-- 
2.46.0