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2020-05-18docs: gpio: Add GPIO Aggregator documentationGeert Uytterhoeven2-0/+112
Document the GPIO Aggregator, and the two typical use-cases. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Tested-by: Eugeniu Rosca <erosca@de.adit-jv.com> Reviewed-by: Ulrich Hecht <uli+renesas@fpond.eu> Reviewed-by: Eugeniu Rosca <erosca@de.adit-jv.com> Link: https://lore.kernel.org/r/20200511145257.22970-6-geert+renesas@glider.be Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-07-15docs: gpio: add sysfs interface to the admin-guideMauro Carvalho Chehab2-0/+184
While this is stated as obsoleted, the sysfs interface described there is still valid, and belongs to the admin-guide. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Acked-by: Linus Walleij <linus.walleij@linaro.org>