netdev - [PATCH] dt-bindings: can: Convert Allwinner A10 CAN controller to a schema

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Date:   Tue, 22 Oct 2019 17:47:45 +0200
From:   Maxime Ripard <mripard@...nel.org>
To:     wg@...ndegger.com, mkl@...gutronix.de, davem@...emloft.net
Cc:     Mark Rutland <mark.rutland@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Frank Rowand <frowand.list@...il.com>,
        devicetree@...r.kernel.org, Chen-Yu Tsai <wens@...e.org>,
        Maxime Ripard <mripard@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, linux-can@...r.kernel.org,
        netdev@...r.kernel.org
Subject: [PATCH] dt-bindings: can: Convert Allwinner A10 CAN controller to a schema

The older Allwinner SoCs have a CAN controller that is supported in Linux,
with a matching Device Tree binding.

Now that we have the DT validation in place, let's convert the device tree
bindings for that controller over to a YAML schemas.

Signed-off-by: Maxime Ripard <mripard@...nel.org>
---
 .../net/can/allwinner,sun4i-a10-can.yaml      | 51 +++++++++++++++++++
 .../devicetree/bindings/net/can/sun4i_can.txt | 36 -------------
 2 files changed, 51 insertions(+), 36 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/net/can/allwinner,sun4i-a10-can.yaml
 delete mode 100644 Documentation/devicetree/bindings/net/can/sun4i_can.txt

diff --git a/Documentation/devicetree/bindings/net/can/allwinner,sun4i-a10-can.yaml b/Documentation/devicetree/bindings/net/can/allwinner,sun4i-a10-can.yaml
new file mode 100644
index 000000000000..770af7c46114
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/can/allwinner,sun4i-a10-can.yaml
@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/can/allwinner,sun4i-a10-can.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A10 CAN Controller Device Tree Bindings
+
+maintainers:
+  - Chen-Yu Tsai <wens@...e.org>
+  - Maxime Ripard <maxime.ripard@...tlin.com>
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - const: allwinner,sun7i-a20-can
+          - const: allwinner,sun4i-a10-can
+      - const: allwinner,sun4i-a10-can
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/sun7i-a20-ccu.h>
+
+    can0: can@...bc00 {
+        compatible = "allwinner,sun7i-a20-can",
+                     "allwinner,sun4i-a10-can";
+        reg = <0x01c2bc00 0x400>;
+        interrupts = <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&ccu CLK_APB1_CAN>;
+    };
+
+...
diff --git a/Documentation/devicetree/bindings/net/can/sun4i_can.txt b/Documentation/devicetree/bindings/net/can/sun4i_can.txt
deleted file mode 100644
index f69845e6feaf..000000000000
--- a/Documentation/devicetree/bindings/net/can/sun4i_can.txt
+++ /dev/null
@@ -1,36 +0,0 @@
-Allwinner A10/A20 CAN controller Device Tree Bindings
------------------------------------------------------
-
-Required properties:
-- compatible: "allwinner,sun4i-a10-can"
-- reg: physical base address and size of the Allwinner A10/A20 CAN register map.
-- interrupts: interrupt specifier for the sole interrupt.
-- clock: phandle and clock specifier.
-
-Example
--------
-
-SoC common .dtsi file:
-
-	can0_pins_a: can0@0 {
-		allwinner,pins = "PH20","PH21";
-		allwinner,function = "can";
-		allwinner,drive = <0>;
-		allwinner,pull = <0>;
-	};
-...
-	can0: can@...bc00 {
-		compatible = "allwinner,sun4i-a10-can";
-		reg = <0x01c2bc00 0x400>;
-		interrupts = <0 26 4>;
-		clocks = <&apb1_gates 4>;
-		status = "disabled";
-	};
-
-Board specific .dts file:
-
-	can0: can@...bc00 {
-		pinctrl-names = "default";
-		pinctrl-0 = <&can0_pins_a>;
-		status = "okay";
-	};
-- 
2.23.0