Re: [PATCH 1/1] drivers/misc: Add Altera System ID driver

Greg Kroah-Hartman
2013-03-04T03:57:03Z

On Mon, Mar 04, 2013 at 03:32:19AM +0000, Arnd Bergmann wrote:
> On Monday 04 March 2013, Ley Foon Tan wrote:
> > This patch is to add Altera System ID driver.
> > User can obtain the system ID and timestamp of the system by
> > reading the sysfs entry.
> >
> > Usage:
> > cat /sys/bus/platform/devices/[addr].sysid/sysid/id
> > cat /sys/bus/platform/devices/[addr].sysid/sysid/timestamp
> >
> > Signed-off-by: Ley Foon Tan <lftan@altera.com>
>
> All sysfs files need documentation in Documentation/ABI/.
>
> This driver looks like it should instead be using the infrastructure we
> have for identifying an SoC in drivers/base/soc.c, which is currently
> only used by the ARM u8500 platform but was introduced as a generic
> interface for this a while ago.

I agree, this shouldn't be a one-off sysfs file.

greg k-h