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SubjectRe: [PATCH v3 2/9] soc: samsung: Convert exynos-chipid driver to use the regmap API
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On 8/21/19 14:16, Krzysztof Kozlowski wrote:
>>> I'm also inclined to have it converted to a regular driver. We already
>>> have "exynos-asv" driver matching on the chipid node (patch 3/9).
>>> The ASV patches will not be merged soon anyway, all this needs some more
>>> thought. Krzysztof, can we abandon the chipid patches for now? Your
>>
>> chipid driver is good and useful on its own. The preferred solution
>> IMHO would be to just revert "soc: samsung: Convert exynos-chipid
>> driver to use the regmap API" commit.
>
> I queued the chipid as a dependency for ASV but ASV requires the
> regmap. What would be left after reverting the regmap part? Simple
> unused printk driver? No need for such. If reverting, then let's drop
> entire driver and rework it offline.

In fact there is now no dependency between the chipid and the ASV
driver (patch 3/9), the regmap is provided by the syscon driver/API.
I should have added "depends on REGMAP && MFD_SYSCON" to Kconfig.
Both drivers (chipid, ASV) share the registers region so the regmap
API seemed appropriate here.
Converting the chipid code to platform driver wouldn't make sense as
it wouldn't be useful early in arch/arm/mach-exynos and we can't have
two drivers for same device (the ASV driver matches on the chipid
compatible now).

--
Regards,
Sylwester

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