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[2/2] dt-bindings: can: tcan4x5x: Document the ti,nwkrq-voltage-sel option

Message ID 20241031-tcan-wkrqv-v1-2-823dbd12fe4a@geanix.com (mailing list archive)
State New
Delegated to: Netdev Maintainers
Headers show
Series can: tcan4x5x: add option for selecting nWKRQ voltage | expand

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Commit Message

Sean Nyekjaer Oct. 31, 2024, 1:24 p.m. UTC 
nWKRQ supports an output voltage of either the internal reference voltage
(3.6V) or the reference voltage of the digital interface 0 - 6V.
Add the devicetree option ti,nwkrq-voltage-sel to be able to select
between them.

Signed-off-by: Sean Nyekjaer <sean@geanix.com>
---
 Documentation/devicetree/bindings/net/can/tcan4x5x.txt | 7 +++++++
 1 file changed, 7 insertions(+)
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/net/can/tcan4x5x.txt b/Documentation/devicetree/bindings/net/can/tcan4x5x.txt
index 20c0572c9853424e1d104cbf75d02094a54836c3..f6f8b9e44c0c8dab09a0b7e3bc17d4230fcefab7 100644
--- a/Documentation/devicetree/bindings/net/can/tcan4x5x.txt
+++ b/Documentation/devicetree/bindings/net/can/tcan4x5x.txt
@@ -23,6 +23,12 @@  required property details.
 Optional properties:
 	- reset-gpios: Hardwired output GPIO. If not defined then software
 		       reset.
+	- ti,nwkrq-voltage-sel: nWKRQ Pin GPO buffer voltage rail configuration.
+			        The option of this properties will tell which
+				voltage rail is used for the nWKRQ Pin.
+				Valid values are 0 and 1.
+				0: Internal voltage rail
+				1: VIO voltage rail
 	- device-state-gpios: Input GPIO that indicates if the device is in
 			      a sleep state or if the device is active. Not
 			      available with tcan4552/4553.
@@ -44,5 +50,6 @@  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>;
+		ti,nwkrq-voltage-sel = /bits/ 8 <0>;
 		wakeup-source;
 };