linux-kernel - [PATCH 1/3] dt-bindings: phy: convert Broadcom NS USB 2.0 to the json-schema

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Date:   Fri, 26 Feb 2021 12:44:59 +0100
From:   Rafał Miłecki <zajec5@...il.com>
To:     Kishon Vijay Abraham I <kishon@...com>,
        Vinod Koul <vkoul@...nel.org>, Rob Herring <robh+dt@...nel.org>
Cc:     linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        Florian Fainelli <f.fainelli@...il.com>,
        Vivek Unune <npcomplete13@...il.com>,
        bcm-kernel-feedback-list@...adcom.com,
        Rafał Miłecki <rafal@...ecki.pl>
Subject: [PATCH 1/3] dt-bindings: phy: convert Broadcom NS USB 2.0 to the json-schema

From: Rafał Miłecki <rafal@...ecki.pl>

Minor example fixes:
1. Include bcm-nsp.h
2. Add address to the node name

Signed-off-by: Rafał Miłecki <rafal@...ecki.pl>
---
This has been verified using dt_binding_check
---
 .../bindings/phy/bcm-ns-usb2-phy.txt          | 21 -------
 .../bindings/phy/brcm,ns-usb2-phy.yaml        | 55 +++++++++++++++++++
 2 files changed, 55 insertions(+), 21 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/phy/bcm-ns-usb2-phy.txt
 create mode 100644 Documentation/devicetree/bindings/phy/brcm,ns-usb2-phy.yaml

diff --git a/Documentation/devicetree/bindings/phy/bcm-ns-usb2-phy.txt b/Documentation/devicetree/bindings/phy/bcm-ns-usb2-phy.txt
deleted file mode 100644
index a7aee9ea8926..000000000000
--- a/Documentation/devicetree/bindings/phy/bcm-ns-usb2-phy.txt
+++ /dev/null
@@ -1,21 +0,0 @@
-Driver for Broadcom Northstar USB 2.0 PHY
-
-Required properties:
-- compatible: brcm,ns-usb2-phy
-- reg: iomem address range of DMU (Device Management Unit)
-- reg-names: "dmu", the only needed & supported reg right now
-- clocks: USB PHY reference clock
-- clock-names: "phy-ref-clk", the only needed & supported clock right now
-
-To initialize USB 2.0 PHY driver needs to setup PLL correctly. To do this it
-requires passing phandle to the USB PHY reference clock.
-
-Example:
-	usb2-phy {
-		compatible = "brcm,ns-usb2-phy";
-		reg = <0x1800c000 0x1000>;
-		reg-names = "dmu";
-		#phy-cells = <0>;
-		clocks = <&genpll BCM_NSP_GENPLL_USB_PHY_REF_CLK>;
-		clock-names = "phy-ref-clk";
-	};
diff --git a/Documentation/devicetree/bindings/phy/brcm,ns-usb2-phy.yaml b/Documentation/devicetree/bindings/phy/brcm,ns-usb2-phy.yaml
new file mode 100644
index 000000000000..b8b683ce8fa9
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/brcm,ns-usb2-phy.yaml
@@ -0,0 +1,55 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/brcm,ns-usb2-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom Northstar USB 2.0 PHY
+
+description: Broadcom's USB 2.0 PHY integrated into Northstar family SoCs
+
+maintainers:
+  - Rafał Miłecki <rafal@...ecki.pl>
+
+properties:
+  compatible:
+    const: brcm,ns-usb2-phy
+
+  reg:
+    maxItems: 1
+    description: DMU (Device Management Unit) address range
+
+  reg-names:
+    const: dmu
+
+  clocks:
+    maxItems: 1
+    description: USB PHY reference clock
+
+  clock-names:
+    const: phy-ref-clk
+
+  "#phy-cells":
+    const: 0
+
+required:
+  - reg
+  - reg-names
+  - clocks
+  - clock-names
+  - "#phy-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/bcm-nsp.h>
+
+    usb2-phy@...0c000 {
+        compatible = "brcm,ns-usb2-phy";
+        reg = <0x1800c000 0x1000>;
+        reg-names = "dmu";
+        clocks = <&genpll BCM_NSP_GENPLL_USB_PHY_REF_CLK>;
+        clock-names = "phy-ref-clk";
+        #phy-cells = <0>;
+    };
-- 
2.26.2