[2/3] dt-bindings: clocks: Convert Allwinner A80 USB clocks to a schema

Commit Message

Maxime Ripard Dec. 9, 2019, 9:35 a.m. UTC

The Allwinner A80 SoC has a USB clocks 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 <[e-mail]>
---
 .../clock/allwinner,sun9i-a80-usb-clocks.yaml | 59 +++++++++++++++++++
 .../devicetree/bindings/clock/sun9i-usb.txt   | 24 --------
 2 files changed, 59 insertions(+), 24 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-usb-clocks.yaml
 delete mode 100644 Documentation/devicetree/bindings/clock/sun9i-usb.txt

Comments

Stephen Boyd Dec. 12, 2019, 10:12 p.m. UTC | #1

Quoting Maxime Ripard (2019-12-09 01:35:57)
> The Allwinner A80 SoC has a USB clocks 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 <[e-mail]>
> ---

Reviewed-by: Stephen Boyd <[e-mail]>

Patch

diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-usb-clocks.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-usb-clocks.yaml
new file mode 100644
index 000000000000..fa0ee03a527f
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-usb-clocks.yaml
@@ -0,0 +1,59 @@ 
+# SPDX-License-Identifier: GPL-2.0+
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/allwinner,sun9i-a80-usb-clocks.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A80 USB Clock Controller Device Tree Bindings
+
+maintainers:
+  - Chen-Yu Tsai <[e-mail]>
+  - Maxime Ripard <[e-mail]>
+
+properties:
+  "#clock-cells":
+    const: 1
+
+  "#reset-cells":
+    const: 1
+
+  compatible:
+    const: allwinner,sun9i-a80-usb-clocks
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: Bus Clock
+      - description: High Frequency Oscillator
+
+  clock-names:
+    items:
+      - const: bus
+      - const: hosc
+
+required:
+  - "#clock-cells"
+  - "#reset-cells"
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/sun9i-a80-ccu.h>
+
+    usb_clocks: clock@a08000 {
+        compatible = "allwinner,sun9i-a80-usb-clks";
+        reg = <0x00a08000 0x8>;
+        clocks = <&ccu CLK_BUS_USB>, <&osc24M>;
+        clock-names = "bus", "hosc";
+        #clock-cells = <1>;
+        #reset-cells = <1>;
+    };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/sun9i-usb.txt b/Documentation/devicetree/bindings/clock/sun9i-usb.txt
deleted file mode 100644
index 3564bd4f2a20..000000000000
--- a/Documentation/devicetree/bindings/clock/sun9i-usb.txt
+++ /dev/null
@@ -1,24 +0,0 @@ 
-Allwinner A80 USB Clock Control Binding
----------------------------------------
-
-Required properties :
-- compatible: must contain one of the following compatibles:
-		- "allwinner,sun9i-a80-usb-clocks"
-
-- reg: Must contain the registers base address and length
-- clocks: phandle to the clocks feeding the USB subsystem. Two are needed:
-  - "bus": the bus clock for the whole USB subsystem
-  - "hosc": the high frequency oscillator (usually at 24MHz)
-- clock-names: Must contain the clock names described just above
-- #clock-cells : must contain 1
-- #reset-cells : must contain 1
-
-Example:
-usb_clocks: clock@a08000 {
-	compatible = "allwinner,sun9i-a80-usb-clks";
-	reg = <0x00a08000 0x8>;
-	clocks = <&ccu CLK_BUS_USB>, <&osc24M>;
-	clock-names = "bus", "hosc";
-	#clock-cells = <1>;
-	#reset-cells = <1>;
-};