linux-kernel - [PATCH v7 7/8] dt-bindings: can: m_can: Document new can transceiver binding

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Message-ID: <1515581725-29242-8-git-send-email-faiz_abbas@ti.com>
Date:   Wed, 10 Jan 2018 16:25:24 +0530
From:   Faiz Abbas <faiz_abbas@...com>
To:     <wg@...ndegger.com>, <mkl@...gutronix.de>, <robh+dt@...nel.org>,
        <mark.rutland@....com>
CC:     <linux-can@...r.kernel.org>, <netdev@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <faiz_abbas@...com>, <nsekhar@...com>, <fcooper@...com>,
        <robh@...nel.org>, <Wenyou.Yang@...rochip.com>,
        <sergei.shtylyov@...entembedded.com>, <linux-omap@...r.kernel.org>,
        <b29396@...escale.com>
Subject: [PATCH v7 7/8] dt-bindings: can: m_can: Document new can transceiver binding

From: Franklin S Cooper Jr <fcooper@...com>

Add information regarding can-transceiver binding. This is especially
important for MCAN since the IP allows CAN FD mode to run significantly
faster than what most transceivers are capable of.

Signed-off-by: Franklin S Cooper Jr <fcooper@...com>
Signed-off-by: Sekhar Nori <nsekhar@...com>
Signed-off-by: Faiz Abbas <faiz_abbas@...com>
---
 Documentation/devicetree/bindings/net/can/m_can.txt | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/can/m_can.txt b/Documentation/devicetree/bindings/net/can/m_can.txt
index 63e9042..ed61438 100644
--- a/Documentation/devicetree/bindings/net/can/m_can.txt
+++ b/Documentation/devicetree/bindings/net/can/m_can.txt
@@ -43,6 +43,11 @@ Required properties:
 			  Please refer to 2.4.1 Message RAM Configuration in
 			  Bosch M_CAN user manual for details.
 
+Optional Subnode:
+- can-transceiver	: Can-transceiver subnode describing maximum speed
+			  that can be used for CAN/CAN-FD modes. See
+			  Documentation/devicetree/bindings/net/can/can-transceiver.txt
+			  for details.
 Example:
 SoC dtsi:
 m_can1: can@...8000 {
@@ -63,4 +68,8 @@ Board dts:
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_m_can1>;
 	status = "enabled";
+
+	can-transceiver {
+		max-bitrate = <5000000>;
+	};
 };
-- 
2.7.4