i2c: mux: arb-gpio: Rewrite to use GPIO descriptors

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Instead of complex code picking GPIOs out of the device tree
and keeping track of polarity for each GPIO line, use descriptors
and pull polarity handling into the gpiolib.

We look for "our-claim" and "their-claim" since the gpiolib
code will try e.g. "our-claim-gpios" and "our-claim-gpio" in
turn to locate these GPIO lines from the device tree.

Cc: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Doug Anderson <dianders@chromium.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Peter Rosin <peda@axentia.se>

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Linus Walleij 2019-06-01 18:59:31 +02:00 • committed by Peter Rosin

parent 1f3b69b6b9

commit d9a183bfd2

1 changed files with 27 additions and 52 deletions

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drivers/i2c/muxes/i2c-arb-gpio-challenge.c

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