[PATCH v5 1/9] dt-bindings: can: m_can: Add wakeup properties

Dhruva Gole d-gole at ti.com
Mon Oct 28 23:58:00 PDT 2024


On Oct 28, 2024 at 18:38:07 +0100, 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.
> 
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski at linaro.org>
> Signed-off-by: Markus Schneider-Pargmann <msp at baylibre.com>
> ---
>  .../devicetree/bindings/net/can/bosch,m_can.yaml       | 18 ++++++++++++++++++
>  1 file changed, 18 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml b/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml
> index c4887522e8fe97c3947357b4dbd4ecf20ee8100a..0c1f9fa7371897d45539ead49c9d290fb4966f30 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 +138,8 @@ properties:
>      minItems: 1
>      maxItems: 2
>  
> +  wakeup-source: true
> +

Reviewed-by: Dhruva Gole <d-gole at ti.com>

-- 
Best regards,
Dhruva Gole
Texas Instruments Incorporated



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