[PATCH v3 1/2] mfd: syscon: add of_syscon_register_regmap() API
Krzysztof Kozlowski
krzk at kernel.org
Sun Jun 23 22:57:51 PDT 2024
On 21/06/2024 13:55, Peter Griffin wrote:
> The of_syscon_register_regmap() API allows an externally created regmap
> to be registered with syscon. This regmap can then be returned to client
> drivers using the syscon_regmap_lookup_by_phandle() APIs.
>
> The API is used by platforms where mmio access to the syscon registers is
> not possible, and a underlying soc driver like exynos-pmu provides a SoC
> specific regmap that can issue a SMC or hypervisor call to write the
> register.
>
> This approach keeps the SoC complexities out of syscon, but allows common
> drivers such as syscon-poweroff, syscon-reboot and friends that are used
> by many SoCs already to be re-used.
>
> Signed-off-by: Peter Griffin <peter.griffin at linaro.org>
> Reviewed-by: Arnd Bergmann <arnd at arndb.de>
> Reviewed-by: Sam Protsenko <semen.protsenko at linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski at linaro.org>
Lee,
The second patch is for Samsung SoC but it depends on this one. I do not
see any conflicting work, so you could take both via MFD tree, but just
in case, could you keep both on a separate patchset? That way I could
still pull it if there are more patches coming.
Best regards,
Krzysztof
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