Re: [PATCH 3/4] can: m_can: Update documentation to mention new fixed transceiver binding
From: Rob Herring <hidden>
Date: 2017-07-24 19:51:03
Also in:
linux-can, linux-devicetree, lkml
On Wed, Jul 19, 2017 at 06:36:53PM -0500, Franklin S Cooper Jr wrote:
quoted hunk ↗ jump to hunk
Add information regarding fixed 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 <redacted> --- Documentation/devicetree/bindings/net/can/m_can.txt | 10 ++++++++++ 1 file changed, 10 insertions(+)diff --git a/Documentation/devicetree/bindings/net/can/m_can.txt b/Documentation/devicetree/bindings/net/can/m_can.txt index 9e33177..4440e4b 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 properties: +- fixed-transceiver : Fixed-transceiver subnode describing maximum speed + that can be used for CAN and/or CAN-FD modes. See + Documentation/devicetree/bindings/net/can/fixed-transceiver.txt + for details. Example: SoC dtsi: m_can1: can@020e8000 {@@ -64,4 +69,9 @@ Board dts: pinctrl-names = "default"; pinctrl-0 = <&pinctrl_m_can1>; status = "enabled"; + + fixed-transceiver@0 {
unit-address should have corresponding reg prop or unit-address should be dropped.
+ max-arbitration-speed = <1000000>; + max-data-speed = <5000000>; + }; }; -- 2.10.0
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