gpio: ep93xx: Do not pingpong irq numbers

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For setting debounce config we want to write an offset in
a per-gpiochip register, and we know which gpiochip we are
on. Instead of a roundtrip over the IRQ number, figure out
what port we are on for this GPIO chip, then index to the
right register and write the value.

This adds the ep93xx_gpio_port() that finds the port index
from a struct gpio_chip * that we can later exploit to
simplify more code.

Acked-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

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This commit is contained in:

Linus Walleij 2018-08-22 22:41:07 +02:00

parent 99399f40d8

commit fd935fc421

1 changed files with 23 additions and 12 deletions

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35

drivers/gpio/gpio-ep93xx.c

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