gpio: pca953x: code shrink

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There are multiple places in the driver code where a
switch (chip->chip_type) is used to determine the proper register
offset.

Unduplicate the code by adding a simple structure holding the possible
offsets that differ between the pca953x and pca957x chip families and
use it to avoid the checks.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

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Bartosz Golaszewski 2016-09-09 11:17:34 +02:00 • committed by Linus Walleij

parent 14bf873e59

commit 53661f3bc6

1 changed files with 48 additions and 85 deletions

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drivers/gpio/gpio-pca953x.c

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