netdev - [PATCH net-next 03/18] dt-bindings: can: tcan4x5x: Document the ti,nwkrq-voltage-vio option

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Message-ID: <20250110112712.3214173-4-mkl@pengutronix.de>
Date: Fri, 10 Jan 2025 12:04:11 +0100
From: Marc Kleine-Budde <mkl@...gutronix.de>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net,
	kuba@...nel.org,
	linux-can@...r.kernel.org,
	kernel@...gutronix.de,
	Sean Nyekjaer <sean@...nix.com>,
	Rob Herring <robh@...nel.org>,
	Marc Kleine-Budde <mkl@...gutronix.de>
Subject: [PATCH net-next 03/18] dt-bindings: can: tcan4x5x: Document the ti,nwkrq-voltage-vio option

From: Sean Nyekjaer <sean@...nix.com>

The nWKRQ pin supports an output voltage of either the internal reference
voltage (3.6V) or the reference voltage of
the digital interface 0-6V (VIO).
Add the devicetree option ti,nwkrq-voltage-vio to set it to VIO.

If this property is omitted the reset default, the internal reference
voltage, is used.

Signed-off-by: Sean Nyekjaer <sean@...nix.com>
Reviewed-by: Rob Herring (Arm) <robh@...nel.org>
Reviewed-by: Marc Kleine-Budde <mkl@...gutronix.de>
Link: https://patch.msgid.link/20241114-tcan-wkrqv-v5-1-a2d50833ed71@geanix.com
Signed-off-by: Marc Kleine-Budde <mkl@...gutronix.de>
---
 .../devicetree/bindings/net/can/ti,tcan4x5x.yaml          | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/can/ti,tcan4x5x.yaml b/Documentation/devicetree/bindings/net/can/ti,tcan4x5x.yaml
index afd9d315dea2..384e15da2713 100644
--- a/Documentation/devicetree/bindings/net/can/ti,tcan4x5x.yaml
+++ b/Documentation/devicetree/bindings/net/can/ti,tcan4x5x.yaml
@@ -110,6 +110,13 @@ properties:
       Must be half or less of "clocks" frequency.
     maximum: 18000000
 
+  ti,nwkrq-voltage-vio:
+    type: boolean
+    description:
+      nWKRQ Pin GPO buffer voltage configuration.
+      Set nWKRQ to use VIO voltage rail.
+      When not set nWKRQ will use internal voltage rail.
+
   wakeup-source:
     $ref: /schemas/types.yaml#/definitions/flag
     description:
@@ -163,6 +170,7 @@ examples:
             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-vio;
             wakeup-source;
         };
     };
-- 
2.45.2