[PATCH v10 1/4] dt-bindings: can: m_can: Add wakeup properties
From: "Markus Schneider-Pargmann (TI.com)" <msp@baylibre.com>
Date: 2025-10-01 14:31:14
Also in:
linux-can, lkml
Subsystem:
can network drivers, mcan device driver, open firmware and flattened device tree bindings, the rest · Maintainers:
Marc Kleine-Budde, Vincent Mailhol, Markus Schneider-Pargmann, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
The pins associated with m_can have to have a special configuration to be able to wakeup the SoC from some system states. This configuration is described in the wakeup pinctrl state while the default state describes the default configuration. Also add the sleep state which is already in use by some devicetrees. Also m_can can be a wakeup-source if capable of wakeup. Signed-off-by: Markus Schneider-Pargmann (TI.com) <msp@baylibre.com> --- .../devicetree/bindings/net/can/bosch,m_can.yaml | 25 ++++++++++++++++++++++ 1 file changed, 25 insertions(+)
diff --git a/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml b/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml
index 61ef60d8f1c78c40a6c8458ed30b940b1121d83f..2c9d37975bedd652b3060ab11ba75c37565edaad 100644
--- a/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml
+++ b/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml@@ -109,6 +109,26 @@ properties: maximum: 32 minItems: 1 + pinctrl-0: + description: Default pinctrl state + + pinctrl-1: + description: Can be "sleep" or "wakeup" pinctrl state + + pinctrl-2: + description: Can be "sleep" or "wakeup" pinctrl state + + pinctrl-names: + description: + When present should contain at least "default" describing the default pin + states. Other states are "sleep" which describes the pinstate when + sleeping and "wakeup" describing the pins if wakeup is enabled. + minItems: 1 + items: + - const: default + - enum: [ sleep, wakeup ] + - const: wakeup + power-domains: description: Power domain provider node and an args specifier containing
@@ -125,6 +145,11 @@ properties: minItems: 1 maxItems: 2 + wakeup-source: + $ref: /schemas/types.yaml#/definitions/phandle-array + description: + List of phandles to system idle states in which mcan can wakeup the system. + required: - compatible - reg
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2.51.0