diff mbox series

[v2,1/7] dt-bindings: can: m_can: Add wakeup properties

Message ID 20240729074135.3850634-2-msp@baylibre.com (mailing list archive)
State New, archived
Headers show
Series can: m_can: Add am62 wakeup support | expand

Commit Message

Markus Schneider-Pargmann July 29, 2024, 7:41 a.m. UTC
m_can can be a wakeup source on some devices. Especially on some of the
am62* SoCs pins, connected to m_can in the mcu, can be used to wakeup
the SoC.

The wakeup-source property defines on which devices m_can can be used
for wakeup.

The pins associated with m_can have to have a special configuration to
be able to wakeup the SoC. This configuration is described in the wakeup
pinctrl state while the default state describes the default
configuration.

Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
---
 .../bindings/net/can/bosch,m_can.yaml         | 20 +++++++++++++++++++
 1 file changed, 20 insertions(+)

Comments

Rob Herring (Arm) July 30, 2024, 7:10 p.m. UTC | #1
On Mon, Jul 29, 2024 at 09:41:29AM +0200, Markus Schneider-Pargmann wrote:
> m_can can be a wakeup source on some devices. Especially on some of the
> am62* SoCs pins, connected to m_can in the mcu, can be used to wakeup
> the SoC.
> 
> The wakeup-source property defines on which devices m_can can be used
> for wakeup.
> 
> The pins associated with m_can have to have a special configuration to
> be able to wakeup the SoC. This configuration is described in the wakeup
> pinctrl state while the default state describes the default
> configuration.
> 
> Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
> ---
>  .../bindings/net/can/bosch,m_can.yaml         | 20 +++++++++++++++++++
>  1 file changed, 20 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml b/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml
> index c4887522e8fe..ef63f6b8455d 100644
> --- a/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml
> +++ b/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml
> @@ -106,6 +106,22 @@ properties:
>          maximum: 32
>      minItems: 1
>  
> +  pinctrl-0:
> +    description: Default pinctrl state
> +
> +  pinctrl-1:
> +    description: Wakeup pinctrl state
> +
> +  pinctrl-names:
> +    description:
> +      When present should contain at least "default" describing the default pin
> +      states. The second state called "wakeup" describes the pins in their
> +      wakeup configuration required to exit sleep states.
> +    minItems: 1
> +    items:
> +      - const: default
> +      - const: wakeup
> +
>    power-domains:
>      description:
>        Power domain provider node and an args specifier containing
> @@ -122,6 +138,10 @@ properties:
>      minItems: 1
>      maxItems: 2
>  
> +  wakeup-source:
> +    $ref: /schemas/types.yaml#/definitions/flag

I thought we had a common schema defining the type, but we don't. I'm 
going to add it now. So just need:

wakeup-source: true

> +    description: This device is capable to wakeup the SoC.
> +
>  required:
>    - compatible
>    - reg
> -- 
> 2.45.2
>
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml b/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml
index c4887522e8fe..ef63f6b8455d 100644
--- a/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml
+++ b/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml
@@ -106,6 +106,22 @@  properties:
         maximum: 32
     minItems: 1
 
+  pinctrl-0:
+    description: Default pinctrl state
+
+  pinctrl-1:
+    description: Wakeup pinctrl state
+
+  pinctrl-names:
+    description:
+      When present should contain at least "default" describing the default pin
+      states. The second state called "wakeup" describes the pins in their
+      wakeup configuration required to exit sleep states.
+    minItems: 1
+    items:
+      - const: default
+      - const: wakeup
+
   power-domains:
     description:
       Power domain provider node and an args specifier containing
@@ -122,6 +138,10 @@  properties:
     minItems: 1
     maxItems: 2
 
+  wakeup-source:
+    $ref: /schemas/types.yaml#/definitions/flag
+    description: This device is capable to wakeup the SoC.
+
 required:
   - compatible
   - reg