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@linaro.org>
> Signed-off-by: Markus Schneider-Pargmann <msp@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@ti.com>
--
Best regards,
Dhruva Gole
Texas Instruments Incorporated