[PATCH v3] dt-bindings: nvidia,tegra20-kbc: Convert to json-schema

[Max Buchholz]

From: Max Buchholz <Max.Buchholz@xxxxxx>

This converts the Nvidia Tegra keyboard controller bindings to YAML
and fix them up a bit.

Reviewed-by: David Heidelberg <david@xxxxxxx>
Signed-off-by: Max Buchholz <max.buchholz@xxxxxx>
---
v3:
 - fixed maxItems for array properties
v2:
 - rework the file according to the feedback

 .../bindings/input/nvidia,tegra20-kbc.txt     |  55 ---------
 .../bindings/input/nvidia,tegra20-kbc.yaml    | 111 ++++++++++++++++++
 .../bindings/power/wakeup-source.txt          |   2 +-
 3 files changed, 112 insertions(+), 56 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/input/nvidia,tegra20-kbc.txt
 create mode 100644 Documentation/devicetree/bindings/input/nvidia,tegra20-kbc.yaml

diff --git a/Documentation/devicetree/bindings/input/nvidia,tegra20-kbc.txt b/Documentation/devicetree/bindings/input/nvidia,tegra20-kbc.txt
deleted file mode 100644
index 1faa7292e21f..000000000000
--- a/Documentation/devicetree/bindings/input/nvidia,tegra20-kbc.txt
+++ /dev/null
@@ -1,55 +0,0 @@
-* Tegra keyboard controller
-The key controller has maximum 24 pins to make matrix keypad. Any pin
-can be configured as row or column. The maximum column pin can be 8
-and maximum row pins can be 16 for Tegra20/Tegra30.
-
-Required properties:
-- compatible: "nvidia,tegra20-kbc"
-- reg: Register base address of KBC.
-- interrupts: Interrupt number for the KBC.
-- nvidia,kbc-row-pins: The KBC pins which are configured as row. This is an
-  array of pin numbers which is used as rows.
-- nvidia,kbc-col-pins: The KBC pins which are configured as column. This is an
-  array of pin numbers which is used as column.
-- linux,keymap: The keymap for keys as described in the binding document
-  devicetree/bindings/input/matrix-keymap.txt.
-- clocks: Must contain one entry, for the module clock.
-  See ../clocks/clock-bindings.txt for details.
-- resets: Must contain an entry for each entry in reset-names.
-  See ../reset/reset.txt for details.
-- reset-names: Must include the following entries:
-  - kbc
-
-Optional properties, in addition to those specified by the shared
-matrix-keyboard bindings:
-
-- linux,fn-keymap: a second keymap, same specification as the
-  matrix-keyboard-controller spec but to be used when the KEY_FN modifier
-  key is pressed.
-- nvidia,debounce-delay-ms: delay in milliseconds per row scan for debouncing
-- nvidia,repeat-delay-ms: delay in milliseconds before repeat starts
-- nvidia,ghost-filter: enable ghost filtering for this device
-- wakeup-source: configure keyboard as a wakeup source for suspend/resume
-		 (Legacy property supported: "nvidia,wakeup-source")
-
-Example:
-
-keyboard: keyboard {
-	compatible = "nvidia,tegra20-kbc";
-	reg = <0x7000e200 0x100>;
-	interrupts = <0 85 0x04>;
-	clocks = <&tegra_car 36>;
-	resets = <&tegra_car 36>;
-	reset-names = "kbc";
-	nvidia,ghost-filter;
-	nvidia,debounce-delay-ms = <640>;
-	nvidia,kbc-row-pins = <0 1 2>;    /* pin 0, 1, 2 as rows */
-	nvidia,kbc-col-pins = <11 12 13>; /* pin 11, 12, 13 as columns */
-	linux,keymap = <0x00000074
-			0x00010067
-			0x00020066
-			0x01010068
-			0x02000069
-			0x02010070
-			0x02020071>;
-};
diff --git a/Documentation/devicetree/bindings/input/nvidia,tegra20-kbc.yaml b/Documentation/devicetree/bindings/input/nvidia,tegra20-kbc.yaml
new file mode 100644
index 000000000000..8e1eaad2fdc1
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/nvidia,tegra20-kbc.yaml
@@ -0,0 +1,111 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/input/nvidia,tegra20-kbc.yaml#";
+$schema: "http://devicetree.org/meta-schemas/core.yaml#";
+
+title: Nvidia Tegra keyboard controller
+
+maintainers:
+  - Jon Hunter <jonathanh@xxxxxxxxxx>
+  - Sameer Pujar <spujar@xxxxxxxxxx>
+
+description: The key controller has maximum 24 pins to make matrix keypad. Any pin
+  can be configured as row or column.
+
+allOf:
+  - $ref: "/schemas/input/matrix-keymap.yaml#"
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - const: nvidia,tegra30-kbc
+          - const: nvidia,tegra20-kbc
+      - items:
+          - const: nvidia,tegra20-kbc
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  nvidia,kbc-row-pins:
+    minItems: 1
+    maxItems: 16
+    description: KBC pins which are configured as row
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+
+  nvidia,kbc-col-pins:
+    minItems: 1
+    maxItems: 8
+    description: KBC pins which are configured as column
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+
+  clocks:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+  reset-names:
+    const: kbc
+
+  linux,fn-keymap:
+    description: a secondary keymap to be used when the KEY_FN modifier key is pressed
+
+  nvidia,debounce-delay-ms:
+    description: delay in milliseconds per row scan for debouncing
+
+  nvidia,repeat-delay-ms:
+    description: delay in milliseconds before repeat starts
+
+  nvidia,ghost-filter:
+    description: enable ghost filtering for this device
+    type: boolean
+
+  wakeup-source:
+    description: configure keyboard as a wakeup source for suspend/resume
+
+  nvidia,wakeup-source:
+    description: configure keyboard as a wakeup source for suspend/resume
+    deprecated: true
+    type: boolean
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - nvidia,kbc-row-pins
+  - nvidia,kbc-col-pins
+  - linux,keymap
+  - clocks
+  - resets
+  - reset-names
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    kbc@7000e200 {
+        compatible = "nvidia,tegra20-kbc";
+        reg = <0x7000e200 0x100>;
+        interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&tegra_car 36>;
+        resets = <&tegra_car 36>;
+        reset-names = "kbc";
+        nvidia,ghost-filter;
+        nvidia,debounce-delay-ms = <640>;
+        nvidia,kbc-row-pins = <0 1 2>;    /* pin 0, 1, 2 as rows */
+        nvidia,kbc-col-pins = <11 12 13>; /* pin 11, 12, 13 as columns */
+        linux,keymap = <0x00000074
+                        0x00010067
+                        0x00020066
+                        0x01010068
+                        0x02000069
+                        0x02010070
+                        0x02020071>;
+    };
diff --git a/Documentation/devicetree/bindings/power/wakeup-source.txt b/Documentation/devicetree/bindings/power/wakeup-source.txt
index cfd74659fbed..728f88de371d 100644
--- a/Documentation/devicetree/bindings/power/wakeup-source.txt
+++ b/Documentation/devicetree/bindings/power/wakeup-source.txt
@@ -25,7 +25,7 @@ List of legacy properties and respective binding document
 				Documentation/devicetree/bindings/input/touchscreen/ads7846.txt
 5. "linux,keypad-wakeup"	Documentation/devicetree/bindings/input/qcom,pm8xxx-keypad.txt
 6. "linux,input-wakeup"		Documentation/devicetree/bindings/input/samsung-keypad.txt
-7. "nvidia,wakeup-source"	Documentation/devicetree/bindings/input/nvidia,tegra20-kbc.txt
+7. "nvidia,wakeup-source"	Documentation/devicetree/bindings/input/nvidia,tegra20-kbc.yaml

 Examples
 --------
--
2.37.0