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Date:   Wed, 16 Dec 2020 17:30:07 +0800
From:   Chunfeng Yun <chunfeng.yun@...iatek.com>
To:     Rob Herring <robh+dt@...nel.org>
CC:     Chun-Kuang Hu <chunkuang.hu@...nel.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Chunfeng Yun <chunfeng.yun@...iatek.com>,
        Kishon Vijay Abraham I <kishon@...com>,
        Vinod Koul <vkoul@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Stanley Chu <stanley.chu@...iatek.com>,
        Min Guo <min.guo@...iatek.com>,
        <dri-devel@...ts.freedesktop.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>, <linux-usb@...r.kernel.org>,
        Serge Semin <Sergey.Semin@...kalelectronics.ru>
Subject: [PATCH v4 06/11] dt-bindings: phy: convert HDMI PHY binding to YAML schema

Convert HDMI PHY binding to YAML schema mediatek,hdmi-phy.yaml

Cc: Chun-Kuang Hu <chunkuang.hu@...nel.org>
Cc: Philipp Zabel <p.zabel@...gutronix.de>
Signed-off-by: Chunfeng Yun <chunfeng.yun@...iatek.com>
Reviewed-by: Rob Herring <robh@...nel.org>
---
v4: add maintainer Philipp
v3: add Reviewed-by Rob
v2: fix binding check warning of reg in example
---
 .../display/mediatek/mediatek,hdmi.txt        | 18 +---
 .../bindings/phy/mediatek,hdmi-phy.yaml       | 92 +++++++++++++++++++
 2 files changed, 93 insertions(+), 17 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/phy/mediatek,hdmi-phy.yaml

diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,hdmi.txt b/Documentation/devicetree/bindings/display/mediatek/mediatek,hdmi.txt
index 6b1c586403e4..b284ca51b913 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,hdmi.txt
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,hdmi.txt
@@ -53,23 +53,7 @@ Required properties:
 
 HDMI PHY
 ========
-
-The HDMI PHY serializes the HDMI encoder's three channel 10-bit parallel
-output and drives the HDMI pads.
-
-Required properties:
-- compatible: "mediatek,<chip>-hdmi-phy"
-- the supported chips are mt2701, mt7623 and mt8173
-- reg: Physical base address and length of the module's registers
-- clocks: PLL reference clock
-- clock-names: must contain "pll_ref"
-- clock-output-names: must be "hdmitx_dig_cts" on mt8173
-- #phy-cells: must be <0>
-- #clock-cells: must be <0>
-
-Optional properties:
-- mediatek,ibias: TX DRV bias current for <1.65Gbps, defaults to 0xa
-- mediatek,ibias_up: TX DRV bias current for >1.65Gbps, defaults to 0x1c
+See phy/mediatek,hdmi-phy.yaml
 
 Example:
 
diff --git a/Documentation/devicetree/bindings/phy/mediatek,hdmi-phy.yaml b/Documentation/devicetree/bindings/phy/mediatek,hdmi-phy.yaml
new file mode 100644
index 000000000000..4752517a1446
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/mediatek,hdmi-phy.yaml
@@ -0,0 +1,92 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (c) 2020 MediaTek
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/mediatek,hdmi-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek High Definition Multimedia Interface (HDMI) PHY binding
+
+maintainers:
+  - Chun-Kuang Hu <chunkuang.hu@...nel.org>
+  - Philipp Zabel <p.zabel@...gutronix.de>
+  - Chunfeng Yun <chunfeng.yun@...iatek.com>
+
+description: |
+  The HDMI PHY serializes the HDMI encoder's three channel 10-bit parallel
+  output and drives the HDMI pads.
+
+properties:
+  $nodename:
+    pattern: "^hdmi-phy@[0-9a-f]+$"
+
+  compatible:
+    enum:
+      - mediatek,mt2701-hdmi-phy
+      - mediatek,mt7623-hdmi-phy
+      - mediatek,mt8173-hdmi-phy
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: PLL reference clock
+
+  clock-names:
+    items:
+      - const: pll_ref
+
+  clock-output-names:
+    items:
+      - const: hdmitx_dig_cts
+
+  "#phy-cells":
+    const: 0
+
+  "#clock-cells":
+    const: 0
+
+  mediatek,ibias:
+    description:
+      TX DRV bias current for < 1.65Gbps
+    $ref: /schemas/types.yaml#/definitions/uint32
+    minimum: 0
+    maximum: 63
+    default: 0xa
+
+  mediatek,ibias_up:
+    description:
+      TX DRV bias current for >= 1.65Gbps
+    $ref: /schemas/types.yaml#/definitions/uint32
+    minimum: 0
+    maximum: 63
+    default: 0x1c
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - clock-output-names
+  - "#phy-cells"
+  - "#clock-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/mt8173-clk.h>
+    hdmi_phy: hdmi-phy@...09100 {
+        compatible = "mediatek,mt8173-hdmi-phy";
+        reg = <0x10209100 0x24>;
+        clocks = <&apmixedsys CLK_APMIXED_HDMI_REF>;
+        clock-names = "pll_ref";
+        clock-output-names = "hdmitx_dig_cts";
+        mediatek,ibias = <0xa>;
+        mediatek,ibias_up = <0x1c>;
+        #clock-cells = <0>;
+        #phy-cells = <0>;
+    };
+
+...
-- 
2.18.0

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