linux-kernel - Re: [PATCH] can: m_can: add support for one shot mode

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Message-ID: <79c10dd5-0c44-ce70-9cb9-bb61e12362d4@pengutronix.de>
Date:   Fri, 4 Oct 2019 22:41:57 +0200
From:   Marc Kleine-Budde <mkl@...gutronix.de>
To:     Pankaj Sharma <pankj.sharma@...sung.com>,
        linux-can@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     wg@...ndegger.com, davem@...emloft.net,
        eugen.hristev@...rochip.com, ludovic.desroches@...rochip.com,
        pankaj.dubey@...sung.com, rcsekar@...sung.com,
        Sriram Dash <sriram.dash@...sung.com>
Subject: Re: [PATCH] can: m_can: add support for one shot mode

On 9/25/19 1:45 PM, Pankaj Sharma wrote:
> According to the CAN Specification (see ISO 11898-1:2015, 8.3.4
> Recovery Management), the M_CAN provides means for automatic
> retransmission of frames that have lost arbitration or that
> have been disturbed by errors during transmission. By default
> automatic retransmission is enabled.
> 
> The Bosch MCAN controller has support for disabling automatic
> retransmission.
> 
> To support time-triggered communication as described in ISO
> 11898-1:2015, chapter 9.2, the automatic retransmission may be
> disabled via CCCR.DAR.
> 
> CAN_CTRLMODE_ONE_SHOT is used for disabling automatic retransmission.
> 
> Signed-off-by: Pankaj Sharma <pankj.sharma@...sung.com>
> Signed-off-by: Sriram Dash <sriram.dash@...sung.com>

The patch does not apply to net-next/master. Please use net-next/master
as a base for patches introducing new features.

I've ported the patch and applied it.

tnx,
Marc

-- 
Pengutronix e.K.                  | Marc Kleine-Budde           |
Industrial Linux Solutions        | Phone: +49-231-2826-924     |
Vertretung West/Dortmund          | Fax:   +49-5121-206917-5555 |
Amtsgericht Hildesheim, HRA 2686  | http://www.pengutronix.de   |



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