spi/imx: use gpio_is_valid to determine if a gpio is valid
authorHui Wang <jason77.wang@gmail.com>
Fri, 13 Jul 2012 02:51:29 +0000 (10:51 +0800)
committerMark Brown <broonie@opensource.wolfsonmicro.com>
Fri, 13 Jul 2012 10:01:46 +0000 (11:01 +0100)
Use gpio_is_valid() to replace "gpio >= 0" or "gpio < 0".

Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Hui Wang <jason77.wang@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
drivers/spi/spi-imx.c

Simple merge