linux-kernel - [PATCH 3/4] dt-bindings: phy: convert phy-mtk-ufs.txt to YAML schema

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Message-ID: <006ecd5b88fd7d23a355f2522c37e745f72ac45a.1600760719.git.chunfeng.yun@mediatek.com>
Date:   Tue, 22 Sep 2020 15:55:07 +0800
From:   Chunfeng Yun <chunfeng.yun@...iatek.com>
To:     Chun-Kuang Hu <chunkuang.hu@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Kishon Vijay Abraham I <kishon@...com>,
        Stanley Chu <stanley.chu@...iatek.com>
CC:     Philipp Zabel <p.zabel@...gutronix.de>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>, Vinod Koul <vkoul@...nel.org>,
        Chunfeng Yun <chunfeng.yun@...iatek.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        CK Hu <ck.hu@...iatek.com>, <dri-devel@...ts.freedesktop.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>
Subject: [PATCH 3/4] dt-bindings: phy: convert phy-mtk-ufs.txt to YAML schema

Convert phy-mtk-ufs.txt to YAML schema mediatek,ufs-phy.yaml

Signed-off-by: Chunfeng Yun <chunfeng.yun@...iatek.com>
---
 .../bindings/phy/mediatek,ufs-phy.yaml        | 64 +++++++++++++++++++
 .../devicetree/bindings/phy/phy-mtk-ufs.txt   | 38 -----------
 2 files changed, 64 insertions(+), 38 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/phy/mediatek,ufs-phy.yaml
 delete mode 100644 Documentation/devicetree/bindings/phy/phy-mtk-ufs.txt

diff --git a/Documentation/devicetree/bindings/phy/mediatek,ufs-phy.yaml b/Documentation/devicetree/bindings/phy/mediatek,ufs-phy.yaml
new file mode 100644
index 000000000000..629819d7f1c8
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/mediatek,ufs-phy.yaml
@@ -0,0 +1,64 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (c) 2020 MediaTek
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/mediatek,ufs-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek Universal Flash Storage (UFS) M-PHY binding
+
+maintainers:
+  - Stanley Chu <stanley.chu@...iatek.com>
+  - Chunfeng Yun <chunfeng.yun@...iatek.com>
+
+description: |
+  UFS M-PHY nodes are defined to describe on-chip UFS M-PHY hardware macro.
+  Each UFS M-PHY node should have its own node.
+  To bind UFS M-PHY with UFS host controller, the controller node should
+  contain a phandle reference to UFS M-PHY node.
+
+properties:
+  $nodename:
+    pattern: "^ufs-phy@[0-9a-f]+$"
+
+  compatible:
+    const: mediatek,mt8183-ufsphy
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: Unipro core control clock.
+      - description: M-PHY core control clock.
+
+  clock-names:
+    items:
+      - const: unipro
+      - const: mp
+
+  "#phy-cells":
+    const: 0
+
+required:
+  - compatible
+  - reg
+  - "#phy-cells"
+  - clocks
+  - clock-names
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/mt8183-clk.h>
+    ufsphy: ufs-phy@...a0000 {
+        compatible = "mediatek,mt8183-ufsphy";
+        reg = <0 0x11fa0000 0 0xc000>;
+        clocks = <&infracfg CLK_INFRA_UNIPRO_SCK>,
+                 <&infracfg CLK_INFRA_UFS_MP_SAP_BCLK>;
+        clock-names = "unipro", "mp";
+        #phy-cells = <0>;
+    };
+
+...
diff --git a/Documentation/devicetree/bindings/phy/phy-mtk-ufs.txt b/Documentation/devicetree/bindings/phy/phy-mtk-ufs.txt
deleted file mode 100644
index 5789029a1d42..000000000000
--- a/Documentation/devicetree/bindings/phy/phy-mtk-ufs.txt
+++ /dev/null
@@ -1,38 +0,0 @@
-MediaTek Universal Flash Storage (UFS) M-PHY binding
---------------------------------------------------------
-
-UFS M-PHY nodes are defined to describe on-chip UFS M-PHY hardware macro.
-Each UFS M-PHY node should have its own node.
-
-To bind UFS M-PHY with UFS host controller, the controller node should
-contain a phandle reference to UFS M-PHY node.
-
-Required properties for UFS M-PHY nodes:
-- compatible         : Compatible list, contains the following controller:
-                       "mediatek,mt8183-ufsphy" for ufs phy
-                       persent on MT81xx chipsets.
-- reg                : Address and length of the UFS M-PHY register set.
-- #phy-cells         : This property shall be set to 0.
-- clocks             : List of phandle and clock specifier pairs.
-- clock-names        : List of clock input name strings sorted in the same
-                       order as the clocks property. Following clocks are
-                       mandatory.
-                       "unipro": Unipro core control clock.
-                       "mp": M-PHY core control clock.
-
-Example:
-
-	ufsphy: phy@...a0000 {
-		compatible = "mediatek,mt8183-ufsphy";
-		reg = <0 0x11fa0000 0 0xc000>;
-		#phy-cells = <0>;
-
-		clocks = <&infracfg_ao INFRACFG_AO_UNIPRO_SCK_CG>,
-			 <&infracfg_ao INFRACFG_AO_UFS_MP_SAP_BCLK_CG>;
-		clock-names = "unipro", "mp";
-	};
-
-	ufshci@...70000 {
-		...
-		phys = <&ufsphy>;
-	};
-- 
2.18.0