Re: [PATCH v2 3/4] can: m_can: Update documentation to mention new fixed transceiver binding
From: Franklin S Cooper Jr
Date: Wed Aug 09 2017 - 21:03:10 EST
Hi Rob,
On 08/03/2017 12:07 PM, Rob Herring wrote:
> On Mon, Jul 24, 2017 at 06:05:20PM -0500, Franklin S Cooper Jr wrote:
>> 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 <fcooper@xxxxxx>
>> ---
>> Version 2 changes:
>> Drop unit address
>>
>> 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..e4abd2c 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
>
> This is a node, not a property. Sub nodes should have their own section.
Fixed in my v4 that I just sent.
>
>> + 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 {
>> + max-arbitration-speed = <1000000>;
>> + max-data-speed = <5000000>;
>> + };
>> };
>> --
>> 2.10.0
>>