i2c: designware: Consider SCL GPIO optional
GPIO library can return -ENOSYS for the failed request. Instead of failing ->probe() in this case override error code to 0. Fixes: ca382f5b ("i2c: designware: add i2c gpio recovery option") Reported-by:Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by:
Andy Shevchenko <andriy.shevchenko@linux.intel.com> Tested-by:
Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by:
Wolfram Sang <wsa@the-dreams.de>
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