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

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Message-Id: <20241031-tcan-wkrqv-v1-2-823dbd12fe4a@geanix.com>
Date: Thu, 31 Oct 2024 14:24:22 +0100
From: Sean Nyekjaer <sean@...nix.com>
To: Marc Kleine-Budde <mkl@...gutronix.de>, 
 Vincent Mailhol <mailhol.vincent@...adoo.fr>, 
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: linux-can@...r.kernel.org, netdev@...r.kernel.org, 
 linux-kernel@...r.kernel.org, devicetree@...r.kernel.org, 
 Sean Nyekjaer <sean@...nix.com>
Subject: [PATCH 2/2] dt-bindings: can: tcan4x5x: Document the
 ti,nwkrq-voltage-sel option

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@...nix.com>
---
 Documentation/devicetree/bindings/net/can/tcan4x5x.txt | 7 +++++++
 1 file changed, 7 insertions(+)

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;
 };

-- 
2.46.2