Re: [PATCH] i2c: mpc: Define unique I2C adapter names

[Wolfram Sang <wsa-z923LK4zBo2bacvFa/9K2g@public.gmane.org>]

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On Wed, Jul 10, 2013 at 12:03:21PM -0700, Guenter Roeck wrote:
> The I2C adapters on Freescale MPC107/824x/85xx/512x/52xx/83xx/86xx all
> have the same name "MPC adapter". Since I2C adapter numbers can change
> across reboots and even after loading/unloading an I2C bus master driver,
> adapter names have to be used to identify adapters and thus should be
> unique and well defined. Since this is not the case with this driver,
> it is difficult if not impossible to identify a specific adapter from
> user space on affected platforms.
> 
> To remedy the problem, use the adapter memory address as part of the
> adapter name.
> 
> With this patch, adapter names are:
> On P2020:
> MPC adapter at 0xfff703000
> MPC adapter at 0xfff703100
> 
> On P5040:
> MPC adapter at 0xffe118000
> MPC adapter at 0xffe118100
> MPC adapter at 0xffe119000
> MPC adapter at 0xffe119100
> 
> Signed-off-by: Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>

Applied to for-next, thanks!


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