From: Wolfram Sang <wsa-z923LK4zBo2bacvFa/9K2g@public.gmane.org>
To: Jean-Michel Hautbois
<jean-michel.hautbois-B+Q8N6RmIDZBDgjK7y7TUQ@public.gmane.org>
Cc: linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
mark.rutland-5wv7dgnIgG8@public.gmane.org,
lars-Qo5EllUWu/uELgA04lAiVw@public.gmane.org
Subject: Re: [PATCH] i2c: Add generic support passing secondary devices addresses
Date: Sat, 20 Sep 2014 18:49:07 +0200 [thread overview]
Message-ID: <20140920164858.GA2260@katana> (raw)
In-Reply-To: <1409925739-28188-1-git-send-email-jean-michel.hautbois-B+Q8N6RmIDZBDgjK7y7TUQ@public.gmane.org>
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On Fri, Sep 05, 2014 at 04:02:19PM +0200, Jean-Michel Hautbois wrote:
> Some I2C devices have multiple addresses assigned, for example each address
> corresponding to a different internal register map page of the device.
> So far drivers which need support for this have handled this with a driver
> specific and non-generic implementation, e.g. passing the additional address
> via platform data.
This raises the first question for me: Are the additional addresses
configurable? Sadly, I can't find good documentation for the adv7604.
Otherwise, if I know I have a adv7604 and know its addresses, this
information should go into the driver and not the DT.
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WARNING: multiple messages have this Message-ID (diff)
From: Wolfram Sang <wsa@the-dreams.de>
To: Jean-Michel Hautbois <jean-michel.hautbois@vodalys.com>
Cc: linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org,
mark.rutland@arm.com, lars@metafoo.de
Subject: Re: [PATCH] i2c: Add generic support passing secondary devices addresses
Date: Sat, 20 Sep 2014 18:49:07 +0200 [thread overview]
Message-ID: <20140920164858.GA2260@katana> (raw)
In-Reply-To: <1409925739-28188-1-git-send-email-jean-michel.hautbois@vodalys.com>
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On Fri, Sep 05, 2014 at 04:02:19PM +0200, Jean-Michel Hautbois wrote:
> Some I2C devices have multiple addresses assigned, for example each address
> corresponding to a different internal register map page of the device.
> So far drivers which need support for this have handled this with a driver
> specific and non-generic implementation, e.g. passing the additional address
> via platform data.
This raises the first question for me: Are the additional addresses
configurable? Sadly, I can't find good documentation for the adv7604.
Otherwise, if I know I have a adv7604 and know its addresses, this
information should go into the driver and not the DT.
[-- Attachment #2: Digital signature --]
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next prev parent reply other threads:[~2014-09-20 16:49 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-05 14:02 [PATCH] i2c: Add generic support passing secondary devices addresses Jean-Michel Hautbois
[not found] ` <1409925739-28188-1-git-send-email-jean-michel.hautbois-B+Q8N6RmIDZBDgjK7y7TUQ@public.gmane.org>
2014-09-20 16:49 ` Wolfram Sang [this message]
2014-09-20 16:49 ` Wolfram Sang
2014-09-20 19:50 ` Lars-Peter Clausen
2014-09-20 19:50 ` Lars-Peter Clausen
[not found] ` <541DDA9B.40904-Qo5EllUWu/uELgA04lAiVw@public.gmane.org>
2014-09-21 17:49 ` Wolfram Sang
2014-09-21 17:49 ` Wolfram Sang
2014-09-21 19:23 ` Lars-Peter Clausen
2014-09-21 19:23 ` Lars-Peter Clausen
2014-09-22 10:45 ` Mika Westerberg
2014-09-22 10:45 ` Mika Westerberg
[not found] ` <20140922104555.GQ1786-3PARRvDOhMZrdx17CPfAsdBPR1lH4CV8@public.gmane.org>
2014-09-22 13:27 ` Lars-Peter Clausen
2014-09-22 13:27 ` Lars-Peter Clausen
[not found] ` <542023C8.8080802-Qo5EllUWu/uELgA04lAiVw@public.gmane.org>
2014-09-22 13:45 ` Mika Westerberg
2014-09-22 13:45 ` Mika Westerberg
2014-09-22 14:11 ` Lars-Peter Clausen
[not found] ` <54202E28.80500-Qo5EllUWu/uELgA04lAiVw@public.gmane.org>
2014-09-22 14:41 ` Mika Westerberg
2014-09-22 14:41 ` Mika Westerberg
[not found] ` <20140922144144.GF1786-3PARRvDOhMZrdx17CPfAsdBPR1lH4CV8@public.gmane.org>
2014-10-03 10:46 ` Wolfram Sang
2014-10-03 10:46 ` Wolfram Sang
2014-10-15 18:54 ` Srinivas Pandruvada
2014-10-15 18:54 ` Srinivas Pandruvada
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