From: Ben Dooks <ben-linux-elnMNo+KYs3YtjvyW6yDsg@public.gmane.org>
To: Richard R?jfors
<richard.rojfors.lists-gfIc91nka+FZroRs9YW3xA@public.gmane.org>
Cc: linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: Registering I2C devices on X86
Date: Mon, 14 Jun 2010 08:26:47 +0100 [thread overview]
Message-ID: <20100614072647.GN32401@fluff.org.uk> (raw)
In-Reply-To: <4C062E70.3090409-gfIc91nka+FZroRs9YW3xA@public.gmane.org>
On Wed, Jun 02, 2010 at 12:12:00PM +0200, Richard R?jfors wrote:
> Hi,
>
> I have a general question regarding the best way of registering I2C devices on a X86 system.
>
> On ARM I would have done it in the board config, pretty straight forward.
>
> On this X86 system the I2C bus is a PCI device, and different I2C
> devices might be tied into the bus depending on which board the
> device is populated on.
Hmm, if it is a PCI device, then surely you should know the PCI ID
you are binding too?
> So my idea is to create a "mapping" driver. It opens the I2C
> adapter, creates platform data for each I2C device and add them by
> calling i2c_new_device. I don't find any better way since platform
> data must be created and also translation from GPIO pins to
> interrupt numbers.
That might be a way, however there's not really a good way to add
interrupts dynamically.
--
Ben (ben-elnMNo+KYs3YtjvyW6yDsg@public.gmane.org, http://www.fluff.org/)
'a smiley only costs 4 bytes'
prev parent reply other threads:[~2010-06-14 7:26 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-02 10:12 Registering I2C devices on X86 Richard Röjfors
[not found] ` <4C062E70.3090409-gfIc91nka+FZroRs9YW3xA@public.gmane.org>
2010-06-02 10:36 ` Wolfram Sang
[not found] ` <20100602103650.GA4876-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2010-06-02 11:04 ` Jean Delvare
[not found] ` <20100602130408.1e732a0a-ig7AzVSIIG7kN2dkZ6Wm7A@public.gmane.org>
2010-06-02 11:29 ` Richard Röjfors
[not found] ` <4C0640A0.9070103-gfIc91nka+FZroRs9YW3xA@public.gmane.org>
2010-06-03 6:21 ` Jean Delvare
[not found] ` <20100603082103.4bdccd85-ig7AzVSIIG7kN2dkZ6Wm7A@public.gmane.org>
2010-06-03 12:39 ` Richard Röjfors
[not found] ` <4C07A26C.3070708-gfIc91nka+FZroRs9YW3xA@public.gmane.org>
2010-06-20 8:34 ` Jean Delvare
2010-06-14 7:26 ` Ben Dooks [this message]
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