linux-kernel - [PATCH v8 1/2] dt-bindings: phy: intel-emmc-phy: Add YAML schema for LGM eMMC PHY

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Date:   Thu, 12 Dec 2019 09:53:19 +0800
From:   "Ramuthevar,Vadivel MuruganX" 
        <vadivel.muruganx.ramuthevar@...ux.intel.com>
To:     linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        kishon@...com
Cc:     andriy.shevchenko@...el.com, cheol.yong.kim@...el.com,
        qi-ming.wu@...el.com, peter.harliman.liem@...el.com,
        Ramuthevar Vadivel Murugan 
        <vadivel.muruganx.ramuthevar@...ux.intel.com>
Subject: [PATCH v8 1/2] dt-bindings: phy: intel-emmc-phy: Add YAML schema for LGM eMMC PHY

From: Ramuthevar Vadivel Murugan <vadivel.muruganx.ramuthevar@...ux.intel.com>

Add a YAML schema to use the host controller driver with the
eMMC PHY on Intel's Lightning Mountain SoC.

Signed-off-by: Ramuthevar Vadivel Murugan <vadivel.muruganx.ramuthevar@...ux.intel.com>
---
 .../bindings/phy/intel,lgm-emmc-phy.yaml           | 62 ++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.yaml

diff --git a/Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.yaml b/Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.yaml
new file mode 100644
index 000000000000..aed11258d96d
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.yaml
@@ -0,0 +1,62 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/intel,lgm-emmc-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Intel Lightning Mountain(LGM) eMMC PHY Device Tree Bindings
+
+maintainers:
+  - Ramuthevar Vadivel Murugan <vadivel.muruganx.ramuthevar@...ux.intel.com>
+
+description: |+
+  Bindings for eMMC PHY on Intel's Lightning Mountain SoC, syscon
+  node is used to reference the base address of eMMC phy registers.
+
+  The eMMC PHY node should be the child of a syscon node with the
+  required property:
+
+  - compatible:         Should be one of the following:
+                        "intel,lgm-syscon", "syscon"
+  - reg:
+      maxItems: 1
+
+properties:
+  compatible:
+    contains:
+      const: intel,lgm-emmc-phy
+
+  "#phy-cells":
+    const: 0
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    maxItems: 1
+
+required:
+  - "#phy-cells"
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+
+examples:
+  - |
+    sysconf: chiptop@...00000 {
+      compatible = "intel,lgm-syscon", "syscon";
+      reg = <0xe0200000 0x100>;
+
+      emmc-phy: emmc-phy@a8 {
+        compatible = "intel,lgm-emmc-phy";
+        reg = <0x00a8 0x10>;
+        clocks = <&emmc>;
+        clock-names = "emmcclk";
+        #phy-cells = <0>;
+      };
+    };
+...
-- 
2.11.0