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SubjectRe: [PATCH v2] mfd: syscon: Add syscon_regmap_lookup_by_phandle_optional() function.
On Tue, 10 Nov 2020, Enric Balletbo i Serra wrote:

> This adds syscon_regmap_lookup_by_phandle_optional() function to get an
> optional regmap.
>
> It behaves the same as syscon_regmap_lookup_by_phandle() except where
> there is no regmap phandle. In this case, instead of returning -ENODEV,
> the function returns NULL. This makes error checking simpler when the
> regmap phandle is optional.
>
> Suggested-by: Nicolas Boichat <drinkcat@chromium.org>
> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
> Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
> ---
>
> Changes in v2:
> - Add Matthias r-b tag.
> - Add the explanation from the patch description to the code.
> - Return NULL instead of -ENOTSUPP when regmap helpers are not enabled.
>
> drivers/mfd/syscon.c | 18 ++++++++++++++++++
> include/linux/mfd/syscon.h | 11 +++++++++++
> 2 files changed, 29 insertions(+)

Applied, thanks.

--
Lee Jones [李琼斯]
Senior Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
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