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Subject: Re: [PATCH] can: m_can: add support for one shot mode
To:     Pankaj Sharma <pankj.sharma@samsung.com>,
        linux-can@vger.kernel.org, netdev@vger.kernel.org,
        linux-kernel@vger.kernel.org
Cc:     wg@grandegger.com, davem@davemloft.net,
        eugen.hristev@microchip.com, ludovic.desroches@microchip.com,
        pankaj.dubey@samsung.com, rcsekar@samsung.com,
        Sriram Dash <sriram.dash@samsung.com>
References: <CGME20190925114609epcas5p305e259619c7fe8cdc75d9fd27f34e758@epcas5p3.samsung.com>
 <1569411904-6319-1-git-send-email-pankj.sharma@samsung.com>
From:   Marc Kleine-Budde <mkl@pengutronix.de>
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Message-ID: <79c10dd5-0c44-ce70-9cb9-bb61e12362d4@pengutronix.de>
Date:   Fri, 4 Oct 2019 22:41:57 +0200
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In-Reply-To: <1569411904-6319-1-git-send-email-pankj.sharma@samsung.com>
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Content-Type: multipart/mixed; boundary="C0sk6Yrc1aVlsFK5RaDCUm86gcx4AHX9F";
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From: Marc Kleine-Budde <mkl@pengutronix.de>
To: Pankaj Sharma <pankj.sharma@samsung.com>, linux-can@vger.kernel.org,
 netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: wg@grandegger.com, davem@davemloft.net, eugen.hristev@microchip.com,
 ludovic.desroches@microchip.com, pankaj.dubey@samsung.com,
 rcsekar@samsung.com, Sriram Dash <sriram.dash@samsung.com>
Message-ID: <79c10dd5-0c44-ce70-9cb9-bb61e12362d4@pengutronix.de>
Subject: Re: [PATCH] can: m_can: add support for one shot mode
References: <CGME20190925114609epcas5p305e259619c7fe8cdc75d9fd27f34e758@epcas5p3.samsung.com>
 <1569411904-6319-1-git-send-email-pankj.sharma@samsung.com>
In-Reply-To: <1569411904-6319-1-git-send-email-pankj.sharma@samsung.com>

--C0sk6Yrc1aVlsFK5RaDCUm86gcx4AHX9F
Content-Type: text/plain; charset=utf-8
Content-Language: de-DE
Content-Transfer-Encoding: quoted-printable

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.
>=20
> The Bosch MCAN controller has support for disabling automatic
> retransmission.
>=20
> To support time-triggered communication as described in ISO
> 11898-1:2015, chapter 9.2, the automatic retransmission may be
> disabled via CCCR.DAR.
>=20
> CAN_CTRLMODE_ONE_SHOT is used for disabling automatic retransmission.
>=20
> Signed-off-by: Pankaj Sharma <pankj.sharma@samsung.com>
> Signed-off-by: Sriram Dash <sriram.dash@samsung.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

--=20
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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