From: Linus Walleij <linus.walleij@linaro.org>
To: Lee Jones <lee.jones@linaro.org>
Cc: Arnd Bergmann <arnd@arndb.de>,
Alessandro Rubini <rubini@gnudd.com>,
Russell King - ARM Linux <linux@arm.linux.org.uk>,
linux-arm-kernel@lists.infradead.org,
Rob Herring <robherring2@gmail.com>,
Stephen Warren <swarren@nvidia.com>,
linus.walleij@stericsson.com, linux-kernel@vger.kernel.org,
Wolfram Sang <w.sang@pengutronix.de>,
linux-i2c@vger.kernel.org, STEricsson_nomadik_linux@list.st.com,
devicetree-discuss@lists.ozlabs.org
Subject: Re: [PATCH 3/3] i2c: nomadik: Add Device Tree support to the Nomadik I2C driver
Date: Wed, 5 Sep 2012 08:53:54 +0200 [thread overview]
Message-ID: <CACRpkdaeNXU6ye2uO0cVPnVMVABVq7UoEG=0C_sES+csiYObdA@mail.gmail.com> (raw)
In-Reply-To: <20120905064106.GA4233@gmail.com>
On Wed, Sep 5, 2012 at 8:41 AM, Lee Jones <lee.jones@linaro.org> wrote:
> On Tue, Sep 04, 2012 at 07:27:10PM +0200, Linus Walleij wrote:
>> On Tue, Sep 4, 2012 at 4:28 PM, Arnd Bergmann <arnd@arndb.de> wrote:
>>
>> > In this particular case, we don't have a single board file providing a
>> > struct nmk_i2c_controller definition for platform data, so the best way
>> > to handle this IMHO is to remove the header file with the platform
>> > data definition, and just encode the defaults in the driver.
>>
>> Alessandro Rubini is actively working on bridging this (and
>> other amba_device primecells) to PCI, that is the reason why it
>> was recently converted to an amba_device. How is he then supposed to
>> get the proper parameters into the driver? Note that the PCI ID
>> is no help at all since the parameters depend on what is connected
>> to the I2C bus, not on what it itself is connected to. Isn't platform data
>> used in such cases?
>
> So why can't Alessandro continue to use Platform Data in the normal way?
He probably can, this is not an argument about that, what I am worried
about is Arnd's suggestion to delete the platform data header if there
are potential users of it.
Yours,
Linus Walleij
next prev parent reply other threads:[~2012-09-05 6:53 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-23 15:01 [PATCH 1/3] ARM: ux500: Add i2c configurations to the Device Tree for DB8500 based devices Lee Jones
2012-08-23 15:01 ` [PATCH 2/3] Documentation: Device Tree binding information for i2c-nomadik driver Lee Jones
2012-08-23 15:01 ` [PATCH 3/3] i2c: nomadik: Add Device Tree support to the Nomadik I2C driver Lee Jones
2012-08-27 23:42 ` Linus Walleij
2012-08-31 10:36 ` Lee Jones
2012-08-31 11:22 ` Wolfram Sang
2012-08-31 12:04 ` Lee Jones
2012-08-31 12:23 ` Lee Jones
2012-09-03 9:22 ` Linus Walleij
2012-09-03 9:44 ` Wolfram Sang
2012-09-03 9:50 ` Lee Jones
2012-09-03 10:07 ` Lee Jones
2012-09-03 11:07 ` Linus Walleij
[not found] ` <CAF2Aj3j25w1Nn9O6hV+=i-j1ts_p_Ucswk_M7r04S7i5BzPkHg@mail.gmail.com>
2012-09-03 11:58 ` Linus Walleij
2012-09-03 12:34 ` Lee Jones
2012-09-03 13:19 ` Linus Walleij
2012-09-03 13:28 ` Lee Jones
2012-09-03 14:33 ` Stephen Warren
2012-09-03 14:35 ` Linus Walleij
2012-09-03 15:09 ` Rob Herring
2012-09-03 15:20 ` Lee Jones
2012-09-04 14:28 ` Arnd Bergmann
2012-09-04 17:27 ` Linus Walleij
2012-09-05 6:41 ` Lee Jones
2012-09-05 6:53 ` Linus Walleij [this message]
2012-09-04 17:35 ` Alessandro Rubini
2012-09-05 7:33 ` Lee Jones
2012-09-05 8:22 ` Linus Walleij
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