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Subject: Re: [PATCH 2/6] dt-bindings: can: mcp25xxfd: document device tree
 bindings
To:     Thomas.Kopp@microchip.com, geert@linux-m68k.org,
        manivannan.sadhasivam@linaro.org, o.rempel@pengutronix.de
Cc:     wg@grandegger.com, robh+dt@kernel.org, linux-can@vger.kernel.org,
        devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
        dev.kurt@vandijck-laurijssen.be
References: <20200910133806.25077-1-manivannan.sadhasivam@linaro.org>
 <20200910133806.25077-3-manivannan.sadhasivam@linaro.org>
 <CAMuHMdVkwGjr6dJuMyhQNqFoJqbh6Ec5V2b5LenCshwpM2SDsQ@mail.gmail.com>
 <cbfa3fdb-bcfd-cca5-fcf5-95a78da0447d@pengutronix.de>
 <DM6PR11MB4283A6A532ED88F7D1058A8BFB320@DM6PR11MB4283.namprd11.prod.outlook.com>
From:   Marc Kleine-Budde <mkl@pengutronix.de>
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Message-ID: <b26d4c51-7477-3e68-1c16-7b19558d6a57@pengutronix.de>
Date:   Tue, 29 Sep 2020 13:27:33 +0200
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From: Marc Kleine-Budde <mkl@pengutronix.de>
To: Thomas.Kopp@microchip.com, geert@linux-m68k.org,
 manivannan.sadhasivam@linaro.org, o.rempel@pengutronix.de
Cc: wg@grandegger.com, robh+dt@kernel.org, linux-can@vger.kernel.org,
 devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
 dev.kurt@vandijck-laurijssen.be
Message-ID: <b26d4c51-7477-3e68-1c16-7b19558d6a57@pengutronix.de>
Subject: Re: [PATCH 2/6] dt-bindings: can: mcp25xxfd: document device tree
 bindings
References: <20200910133806.25077-1-manivannan.sadhasivam@linaro.org>
 <20200910133806.25077-3-manivannan.sadhasivam@linaro.org>
 <CAMuHMdVkwGjr6dJuMyhQNqFoJqbh6Ec5V2b5LenCshwpM2SDsQ@mail.gmail.com>
 <cbfa3fdb-bcfd-cca5-fcf5-95a78da0447d@pengutronix.de>
 <DM6PR11MB4283A6A532ED88F7D1058A8BFB320@DM6PR11MB4283.namprd11.prod.outlook.com>
In-Reply-To: <DM6PR11MB4283A6A532ED88F7D1058A8BFB320@DM6PR11MB4283.namprd11.prod.outlook.com>

--4CWYNBaHbAeGqMBmQShgR52jFYKXkstMG
Content-Type: text/plain; charset=utf-8
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On 9/29/20 1:25 PM, Thomas.Kopp@microchip.com wrote:
>> So far in that name space there are the mcp2510, mcp2515 and mcp25625.=

>> From the
>> SW point of view the 2515 and 25625 are identical while being compatib=
le
>> to the
>> mcp2510 but offer more features. There's a single drver (mcp251x) for
>> these.
>> These chips implement the CAN-2.0 standard.
>>
>> Regarding the mcp2517fd and mcp2518fd, the "fd" in the name references=

>> the
>> CAN-FD standard (successor to CAN-2.0).
>>
>> Maybe Thomas Kopp (Cc'ed) from Microchip can say something to this.
>>
>> We can rename the compatible to mcp251xfd to make it more specific.
> I agree that mcp251xfd would be a good fit. We already have (theoretica=
l)
> conflicts for the xx in the namespace e.g. the MCP2542FD which is a=20
> transceiver without any controller functionality.
>=20
> Although hard to guarantee I think it's fair to assume that no MCP251xF=
D=20
> will be released that is incompatible.

Makes sense to me. Thomas, can you create a patch for this?

regards,
Marc

--=20
Pengutronix e.K.                 | Marc Kleine-Budde           |
Embedded Linux                   | https://www.pengutronix.de  |
Vertretung West/Dortmund         | Phone: +49-231-2826-924     |
Amtsgericht Hildesheim, HRA 2686 | Fax:   +49-5121-206917-5555 |


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