[PATCH] gpio: allow passing NULL to gpio_request_by_line_name() to search all gpio controllers

[Tom Rini]

On Fri, Mar 17, 2023 at 09:12:22PM +0100, Rasmus Villemoes wrote:

> The API is more convenient to use if one doesn't have to know upfront
> which gpio controller has a line with the name one is searching for,
> and arrange to look that device up somehow. Or implement this loop
> oneself.
> 
> Signed-off-by: Rasmus Villemoes <rasmus.villemoes at prevas.dk>
> Reviewed-by: Simon Glass <sjg at chromium.org>

Applied to u-boot/next, thanks!

-- 
Tom
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