netdev - [PATCH v3 1/3] dt-bindings: can-controller: add support for termination-gpios

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Message-Id: <20210818071232.20585-2-o.rempel@pengutronix.de>
Date:   Wed, 18 Aug 2021 09:12:30 +0200
From:   Oleksij Rempel <o.rempel@...gutronix.de>
To:     Wolfgang Grandegger <wg@...ndegger.com>,
        Marc Kleine-Budde <mkl@...gutronix.de>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Rob Herring <robh+dt@...nel.org>
Cc:     Oleksij Rempel <o.rempel@...gutronix.de>,
        linux-can@...r.kernel.org, netdev@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel@...gutronix.de, David Jander <david@...tonic.nl>
Subject: [PATCH v3 1/3] dt-bindings: can-controller: add support for termination-gpios

Some boards provide GPIO controllable termination resistor. Provide
binding to make use of it.

Signed-off-by: Oleksij Rempel <o.rempel@...gutronix.de>
---
 .../devicetree/bindings/net/can/can-controller.yaml      | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/can/can-controller.yaml b/Documentation/devicetree/bindings/net/can/can-controller.yaml
index 9cf2ae097156..1f0e98051074 100644
--- a/Documentation/devicetree/bindings/net/can/can-controller.yaml
+++ b/Documentation/devicetree/bindings/net/can/can-controller.yaml
@@ -13,6 +13,15 @@ properties:
   $nodename:
     pattern: "^can(@.*)?$"
 
+  termination-gpios:
+    description: GPIO pin to enable CAN bus termination.
+    maxItems: 1
+
+  termination-ohms:
+    description: The resistance value of the CAN bus termination resistor.
+    minimum: 1
+    maximum: 65535
+
 additionalProperties: true
 
 ...
-- 
2.30.2