From: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
To: Luca Ceresoli <luca.ceresoli@bootlin.com>
Cc: Andy Shevchenko <andriy.shevchenko@intel.com>,
devicetree@vger.kernel.org, linux-i2c@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-media@vger.kernel.org,
Hans Verkuil <hverkuil-cisco@xs4all.nl>,
Jacopo Mondi <jacopo@jmondi.org>,
Kieran Bingham <kieran.bingham@ideasonboard.com>,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
Luca Ceresoli <luca@lucaceresoli.net>,
Mark Rutland <mark.rutland@arm.com>,
Matti Vaittinen <Matti.Vaittinen@fi.rohmeurope.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Peter Rosin <peda@axentia.se>, Rob Herring <robh+dt@kernel.org>,
Sakari Ailus <sakari.ailus@linux.intel.com>,
Vladimir Zapolskiy <vz@mleia.com>,
Wolfram Sang <wsa@the-dreams.de>,
satish.nagireddy@getcruise.com
Subject: Re: [PATCH v4 2/8] i2c: add I2C Address Translator (ATR) support
Date: Thu, 8 Dec 2022 09:56:21 +0200 [thread overview]
Message-ID: <11b87742-bb92-7f8f-8939-2e403d2652e5@ideasonboard.com> (raw)
In-Reply-To: <20221107124055.0495031f@booty>
On 07/11/2022 13:40, Luca Ceresoli wrote:
> On Fri, 4 Nov 2022 13:59:06 +0200
> Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> wrote:
>
>> Hi Andy,
>>
>> On 01/11/2022 16:30, Andy Shevchenko wrote:
>>> On Tue, Nov 01, 2022 at 03:20:26PM +0200, Tomi Valkeinen wrote:
>>>> From: Luca Ceresoli <luca@lucaceresoli.net>
>>>>
>>>> An ATR is a device that looks similar to an i2c-mux: it has an I2C
>>>> slave "upstream" port and N master "downstream" ports, and forwards
>>>> transactions from upstream to the appropriate downstream port. But is
>>>> is different in that the forwarded transaction has a different slave
>>>> address. The address used on the upstream bus is called the "alias"
>>>> and is (potentially) different from the physical slave address of the
>>>> downstream chip.
>>>>
>>>> Add a helper file (just like i2c-mux.c for a mux or switch) to allow
>>>> implementing ATR features in a device driver. The helper takes care or
>>>> adapter creation/destruction and translates addresses at each transaction.
>
> First of all, thank you for bringing this work on!
>
>>> ...
>>>
>>>> +I2C ADDRESS TRANSLATOR (ATR)
>>>> +M: Luca Ceresoli <luca@lucaceresoli.net>
>>>
>>> Hmm... Are you going to maintain this? Or Review? Why not?
>>
>> We haven't discussed with Luca if he wants to maintain this (this is
>> mostly his code). But, indeed, I should add my name there.
>
> I think at this point you are probably in a better position to be the
> maintainer, but I'm OK with being listed here as reviewer (R:).
>
> Ah, would you please use my bootlin dot com address here?
Ok, I've added your bootlin address as R:
Tomi
next prev parent reply other threads:[~2022-12-08 7:56 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-01 13:20 [PATCH v4 0/8] i2c-atr and FPDLink Tomi Valkeinen
2022-11-01 13:20 ` [PATCH v4 1/8] i2c: core: let adapters be notified of client attach/detach Tomi Valkeinen
2022-11-01 13:20 ` [PATCH v4 2/8] i2c: add I2C Address Translator (ATR) support Tomi Valkeinen
2022-11-01 14:30 ` Andy Shevchenko
2022-11-04 11:59 ` Tomi Valkeinen
2022-11-04 12:38 ` Andy Shevchenko
2022-11-04 15:26 ` Tomi Valkeinen
2022-11-04 17:27 ` Andy Shevchenko
2022-11-07 11:40 ` Luca Ceresoli
2022-12-08 7:56 ` Tomi Valkeinen [this message]
2022-11-01 13:20 ` [PATCH v4 3/8] dt-bindings: media: add bindings for TI DS90UB960 Tomi Valkeinen
2022-11-01 16:47 ` Rob Herring
2022-11-02 17:26 ` Rob Herring
2022-11-03 11:50 ` Tomi Valkeinen
2022-11-03 12:13 ` Vaittinen, Matti
2022-11-03 12:32 ` Tomi Valkeinen
2022-11-11 16:26 ` Luca Ceresoli
2022-12-08 9:23 ` Tomi Valkeinen
2022-11-11 16:32 ` Luca Ceresoli
2022-11-11 16:35 ` Luca Ceresoli
2022-11-01 13:20 ` [PATCH v4 4/8] dt-bindings: media: add bindings for TI DS90UB913 Tomi Valkeinen
2022-11-01 16:47 ` Rob Herring
2022-11-02 17:27 ` Rob Herring
2022-11-01 13:20 ` [PATCH v4 5/8] dt-bindings: media: add bindings for TI DS90UB953 Tomi Valkeinen
2022-11-01 16:47 ` Rob Herring
2022-11-01 13:20 ` [PATCH v4 6/8] media: i2c: add DS90UB960 driver Tomi Valkeinen
2022-11-02 8:05 ` Tomi Valkeinen
2022-11-01 13:20 ` [PATCH v4 7/8] media: i2c: add DS90UB913 driver Tomi Valkeinen
2022-11-01 13:20 ` [PATCH v4 8/8] media: i2c: add DS90UB953 driver Tomi Valkeinen
2022-11-07 11:48 ` [PATCH v4 0/8] i2c-atr and FPDLink Luca Ceresoli
2022-11-07 12:12 ` Vaittinen, Matti
2022-11-07 12:12 ` Tomi Valkeinen
2022-11-07 14:37 ` Vaittinen, Matti
2022-11-07 15:37 ` Tomi Valkeinen
2022-11-07 17:47 ` Vaittinen, Matti
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