gpio: pca953x: add PCAL9535 interrupt support for Galileo Gen2

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Galileo Gen2 board uses the PCAL9535 as the GPIO expansion,
it is different from PCA9535 and includes interrupt mask/status registers,
The current driver does not support the interrupt registers configuration,
it causes some gpio pins cannot trigger interrupt events,
this patch fix this issue.

The original patch was submitted by
Josef Ahmad <josef.ahmad@linux.intel.com>
http://git.yoctoproject.org/cgit/cgit.cgi/meta-intel-quark/tree/recipes-kernel/linux/files/0015-Quark-GPIO-1-2-quark.patch

Signed-off-by: Yong Li <yong.b.li@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

...

This commit is contained in:

Yong Li 2016-04-07 12:56:32 +08:00 • committed by Linus Walleij

parent 615d23f80e

commit 44896beae6

1 changed files with 41 additions and 1 deletions

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drivers/gpio/gpio-pca953x.c

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