[PATCH v3 3/3] dt-bindings: can: tcan4x5x: Document the wakeup-source flag

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Let it be known that the tcan4x5x device can now be configured to wake
the host from suspend when a can frame is received.

Signed-off-by: Martin Hundebøll <martin@xxxxxxxxxx>
---

Change in v3:
 * New patch

 Documentation/devicetree/bindings/net/can/tcan4x5x.txt | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/can/tcan4x5x.txt b/Documentation/devicetree/bindings/net/can/tcan4x5x.txt
index 170e23f0610d..20c0572c9853 100644
--- a/Documentation/devicetree/bindings/net/can/tcan4x5x.txt
+++ b/Documentation/devicetree/bindings/net/can/tcan4x5x.txt
@@ -28,6 +28,8 @@ Optional properties:
 			      available with tcan4552/4553.
 	- device-wake-gpios: Wake up GPIO to wake up the TCAN device. Not
 			     available with tcan4552/4553.
+	- wakeup-source: Leave the chip running when suspended, and configure
+			 the RX interrupt to wake up the device.
 
 Example:
 tcan4x5x: tcan4x5x@0 {
@@ -42,4 +44,5 @@ tcan4x5x: tcan4x5x@0 {
 		device-state-gpios = <&gpio3 21 GPIO_ACTIVE_HIGH>;
 		device-wake-gpios = <&gpio1 15 GPIO_ACTIVE_HIGH>;
 		reset-gpios = <&gpio1 27 GPIO_ACTIVE_HIGH>;
+		wakeup-source;
 };
-- 
2.42.0





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