[PATCH v2 07/11] pinctrl: mediatek: paris: Rework mtk_pinconf_{get,set} switch/case logic

[AngeloGioacchino Del Regno]

Il 08/03/22 11:09, Chen-Yu Tsai ha scritto:
> The current code deals with optional features by testing for the
> function pointers and returning -ENOTSUPP if it is not valid. This is
> done for multiple pin config settings and results in the code that
> handles the supporting cases to get indented by one level. This is
> aggrevated by the fact that some features require another level of
> conditionals.
> 
> Instead of assigning the same error code in all unsupported optional
> feature cases, simply have that error code as the default, and break
> out of the switch/case block whenever a feature is unsupported, or an
> error is returned. This reduces indentation by one level for the useful
> code.
> 
> Also replace the goto statements with break statements. The result is
> the same, as the gotos simply exit the switch/case block, which can
> also be achieved with a break statement. With the latter the intent
> is clear and easier to understand.
> 
> Signed-off-by: Chen-Yu Tsai <wenst at chromium.org>

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno at collabora.com>

> ---
>   drivers/pinctrl/mediatek/pinctrl-paris.c | 144 ++++++++++-------------
>   1 file changed, 61 insertions(+), 83 deletions(-)
>