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* w1: gpio: use int for gpioJean-Christophe PLAGNIOL-VILLARD2013-01-131-2/+2
| | | | | | so we can use negative value for invalid gpio Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
* 1-wire: add gpio busJean-Christophe PLAGNIOL-VILLARD2012-10-291-0/+25
Based on linux implementation. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>