[v2 07/10] dts-bindings: phy: Add Cadence HDP-TX DP PHY bindings

Sandor Yu
2022-11-04T06:47:58Z

Add bindings for Cadence HDP-TX DisplayPort PHY.

Signed-off-by: Sandor Yu <Sandor.yu@nxp.com>
---
.../bindings/phy/phy-cadence-hdptx-dp.yaml | 70 +++++++++++++++++++
1 file changed, 70 insertions(+)
create mode 100644 Documentation/devicetree/bindings/phy/phy-cadence-hdptx-dp.yaml

diff --git a/Documentation/devicetree/bindings/phy/phy-cadence-hdptx-dp.yaml b/Documentation/devicetree/bindings/phy/phy-cadence-hdptx-dp.yaml
new file mode 100644
index 000000000000..ab6f4e25c425
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/phy-cadence-hdptx-dp.yaml
@@ -0,0 +1,70 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/phy/phy-cadence-hdptx-dp.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Cadence HDP(HDMI/DisplayPort) TX PHY for DisplayPort protocol binding
+
+description:
+ This binding describes the Cadence HDP-TX PHY for DispalyPort protocol.
+
+maintainers:
+ - Sandor Yu <sandor.yu@nxp.com>
+
+properties:
+ compatible:
+ enum:
+ - cdns,hdptx-dp-phy
+
+ reg:
+ description:
+ Offset of Cadence HDPTX APB configuration registers.
+
+ clocks:
+ items:
+ description:
+ PHY reference clock. Must contain an entry in clock-names.
+
+ clock-names:
+ items:
+ - const: refclk
+
+ "#phy-cells":
+ const: 0
+
+ cdns,num-lanes:
+ description:
+ Number of lanes.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [1, 2, 3, 4]
+ default: 4
+
+ cdns,max-bit-rate:
+ description:
+ Maximum DisplayPort link bit rate to use, in Mbps
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [2160, 2430, 2700, 3240, 4320, 5400]
+ default: 5400
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - "#phy-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/phy/phy.h>
+ dp_phy: dp_phy@32c00000 {
+ compatible = "cdns,hdptx-dp-phy";
+ reg = <0x32c00000 0x100000>;
+ #phy-cells = <0>;
+ clocks = <&hdmi_phy_27m>;
+ clock-names = "refclk";
+ cdns,num-lanes = <4>;
+ cdns,max-bit-rate = <5400>;
+ };
--
2.34.1