netdev - Re: [PATCH 1/3] dt-bindings: net: can: m_can: Add Documentation for stb-gpios

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Message-ID: <c3b0eeb8-bd78-aa96-4783-62dc93f03bfe@ti.com>
Date:   Wed, 22 Jan 2020 07:35:52 -0600
From:   Dan Murphy <dmurphy@...com>
To:     Faiz Abbas <faiz_abbas@...com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <netdev@...r.kernel.org>, <linux-can@...r.kernel.org>
CC:     <catalin.marinas@....com>, <mark.rutland@....com>,
        <robh+dt@...nel.org>, <davem@...emloft.net>, <mkl@...gutronix.de>,
        <wg@...ndegger.com>, <sriram.dash@...sung.com>, <nm@...com>,
        <t-kristo@...com>
Subject: Re: [PATCH 1/3] dt-bindings: net: can: m_can: Add Documentation for
 stb-gpios

Faiz

On 1/22/20 2:03 AM, Faiz Abbas wrote:
> The CAN transceiver on some boards has an STB pin which is
> used to control its standby mode. Add an optional property
> stb-gpios to toggle the same.
>
> Signed-off-by: Faiz Abbas <faiz_abbas@...com>
> Signed-off-by: Sekhar Nori <nsekhar@...com>
> ---
>   Documentation/devicetree/bindings/net/can/m_can.txt | 2 ++
>   1 file changed, 2 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/net/can/m_can.txt b/Documentation/devicetree/bindings/net/can/m_can.txt
> index ed614383af9c..cc8ba3f7a2aa 100644
> --- a/Documentation/devicetree/bindings/net/can/m_can.txt
> +++ b/Documentation/devicetree/bindings/net/can/m_can.txt
> @@ -48,6 +48,8 @@ Optional Subnode:
>   			  that can be used for CAN/CAN-FD modes. See
>   			  Documentation/devicetree/bindings/net/can/can-transceiver.txt
>   			  for details.
> +stb-gpios		: gpio node to toggle the STB (standby) signal on the transceiver
> +

The m_can.txt is for the m_can framework.  If this is specific to the 
platform then it really does not belong here.

If the platform has specific nodes then maybe we need a 
m_can_platform.txt binding for specific platform nodes.  But I leave 
that decision to Rob.

Also I prefer you spell out standby like the gpios are spelled out in 
the tcan binding.

Dan


>   Example:
>   SoC dtsi:
>   m_can1: can@...8000 {