Re: [PATCH v5 1/2] soc: samsung: add exynos chipid driver support

From: Arnd Bergmann
Date: Fri Dec 12 2014 - 06:32:04 EST

On Friday 12 December 2014 13:15:43 Pankaj Dubey wrote:
> >> +
> >> +static void __iomem *exynos_chipid_base;
> >> +
> >> +struct exynos_chipid_info exynos_soc_info;
> >> +EXPORT_SYMBOL(exynos_soc_info);
> >
> > The soc_device already has similar data.Why is this needed? Is it
> > temporary for compatibility?
> struct soc_device_attribute can hold these two (product_id, and
> revision) but they are defined as char * in soc_device_atttribute, and I
> feel it's more specific for exposing via sysfs.
> Also existing code in mach-exynos compares them via product_id/revision
> macros, so I can say to keep compatibility.

We had a similar discussion about the Marvell SoCs a while ago, and at
the time we concluded that it would be best to create a platform-
independent API to match the strings in soc_device_attribute against
a list of strings in the driver, either by matching the start of the
string, or using the glob_match() function. Would that work for you?

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