NFC: st21nfca: Covert to use GPIO descriptor
Since we got rid of platform data, the driver may use GPIO descriptor directly. Looking deeply to the use of the GPIO pin it looks like it should be a fixed voltage regulator rather than custom GPIO handling. But this is out of scope of the change. Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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