[PATCH 1/2] dt-bindings: phy: intel: Add documentation for Keem Bay eMMC PHY

[Wan Ahmad Zainie]

Document Intel Keem Bay eMMC PHY DT bindings.

Signed-off-by: Wan Ahmad Zainie <wan.ahmad.zainie.wan.mohamad@xxxxxxxxx>
---
 .../bindings/phy/intel,keembay-emmc-phy.yaml  | 57 +++++++++++++++++++
 1 file changed, 57 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/phy/intel,keembay-emmc-phy.yaml

diff --git a/Documentation/devicetree/bindings/phy/intel,keembay-emmc-phy.yaml b/Documentation/devicetree/bindings/phy/intel,keembay-emmc-phy.yaml
new file mode 100644
index 000000000000..af1d62fc8323
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/intel,keembay-emmc-phy.yaml
@@ -0,0 +1,57 @@
+# SPDX-License-Identifier: GPL-2.0-only
+# Copyright 2020 Intel Corporation
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/phy/intel,keembay-emmc-phy.yaml#";
+$schema: "http://devicetree.org/meta-schemas/core.yaml#";
+
+title: Intel Keem Bay eMMC PHY
+
+maintainers:
+  - Wan Ahmad Zainie <wan.ahmad.zainie.wan.mohamad@xxxxxxxxx>
+
+properties:
+  compatible:
+    enum:
+      - intel,keembay-emmc-phy
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    items:
+      - const: emmcclk
+
+  intel,syscon:
+    $ref: '/schemas/types.yaml#/definitions/phandle'
+    description:
+      A phandle to a syscon device used to access core/phy configuration
+      registers.
+
+  "#phy-cells":
+    const: 0
+
+required:
+  - compatible
+  - reg
+  - intel,syscon
+  - "#phy-cells"
+
+examples:
+  - |
+    mmc_phy_syscon: syscon@20290000 {
+          compatible = "simple-mfd", "syscon";
+          reg = <0x0 0x20290000 0x0 0x54>;
+    };
+
+    emmc_phy: mmc_phy@20290000 {
+          compatible = "intel,keembay-emmc-phy";
+          reg = <0x0 0x20290000 0x0 0x54>;
+          clocks = <&mmc>;
+          clock-names = "emmcclk";
+          intel,syscon = <&mmc_phy_syscon>;
+          #phy-cells = <0>;
+    };
-- 
2.17.1