diff mbox series

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

Message ID 20220715131422.51143-1-max.buchholz@gmx.de (mailing list archive)
State New, archived
Headers show
Series [v3] dt-bindings: nvidia,tegra20-kbc: Convert to json-schema | expand

Commit Message

Max Buchholz July 15, 2022, 1:14 p.m. UTC 
From: Max Buchholz <Max.Buchholz@gmx.de>

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

Reviewed-by: David Heidelberg <david@ixit.cz>
Signed-off-by: Max Buchholz <max.buchholz@gmx.de>
---
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

--
2.37.0

Comments

Rob Herring (Arm) July 20, 2022, 9:54 p.m. UTC | #1 
On Fri, Jul 15, 2022 at 03:14:21PM +0200, Max Buchholz wrote:
> From: Max Buchholz <Max.Buchholz@gmx.de>
> 
> This converts the Nvidia Tegra keyboard controller bindings to YAML
> and fix them up a bit.
> 
> Reviewed-by: David Heidelberg <david@ixit.cz>
> Signed-off-by: Max Buchholz <max.buchholz@gmx.de>
> ---
> 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@nvidia.com>
> +  - Sameer Pujar <spujar@nvidia.com>
> +
> +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

items:
  maximum: 24 (or 23?)

Also, put 'description' either first or last, not in the middle of 
constraints.

> +
> +  nvidia,kbc-col-pins:
> +    minItems: 1
> +    maxItems: 8
> +    description: KBC pins which are configured as column
> +    $ref: /schemas/types.yaml#/definitions/uint32-array

Same here.

> +
> +  clocks:
> +    maxItems: 1
> +
> +  resets:
> +    maxItems: 1
> +
> +  reset-names:
> +    const: kbc
> +
> +  linux,fn-keymap:

While mentioned in matrix-keymap.yaml, it is not defined as a schema 
anywhere. It needs a type. I guess here is fine as this doesn't seem 
to be used much.

> +    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

Deprecated for 7 years. Could be dropped?

> +
> +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 {

keyboard@...

> +        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
> 
>
Max Buchholz Aug. 27, 2022, 1:05 p.m. UTC | #2 
Hi,

> items:
> maximum: 24 (or 23?)

I do not exactly get what you mean with this and how you get to 24, which isn't the maximum of the kbc-row-pins, but the maximum of kbc-row-pins and kbc-col-pins added. I would be glad to get some more clarification abou that.

Additionally thanks for yll the feedback so far, really appreciate it.

regards

Max Buchholz
 

> From: Max Buchholz <Max.Buchholz@gmx.de>
>
> This converts the Nvidia Tegra keyboard controller bindings to YAML
> and fix them up a bit.
>
> Reviewed-by: David Heidelberg <david@ixit.cz>
> Signed-off-by: Max Buchholz <max.buchholz@gmx.de>
> ---
> 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#[http://devicetree.org/meta-schemas/core.yaml#]"
> +
> +title: Nvidia Tegra keyboard controller
> +
> +maintainers:
> + - Jon Hunter <jonathanh@nvidia.com>
> + - Sameer Pujar <spujar@nvidia.com>
> +
> +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

items:
maximum: 24 (or 23?)

> +
> + nvidia,kbc-col-pins:
> + minItems: 1
> + maxItems: 8
> + description: KBC pins which are configured as column
> + $ref: /schemas/types.yaml#/definitions/uint32-array

Same here.

> +
> + clocks:
> + maxItems: 1
> +
> + resets:
> + maxItems: 1
> +
> + reset-names:
> + const: kbc
> +
> + linux,fn-keymap:

While mentioned in matrix-keymap.yaml, it is not defined as a schema
anywhere. It needs a type. I guess here is fine as this doesn't seem
to be used much.

> + 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

Deprecated for 7 years. Could be dropped?

> +
> +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 {

keyboard@...

> + 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
>
>
diff mbox series

Patch

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@nvidia.com>
+  - Sameer Pujar <spujar@nvidia.com>
+
+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
 --------