arm/mxc: move IMX_GPIO_NR into mach/hardware.h
The patch moves IMX_GPIO_NR into mach/hardware.h, so that we only
use standard gpiolib helpers in mach/gpio.h.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
diff --git a/arch/arm/plat-mxc/include/mach/hardware.h b/arch/arm/plat-mxc/include/mach/hardware.h
index 77f6556..f57ec47 100644
--- a/arch/arm/plat-mxc/include/mach/hardware.h
+++ b/arch/arm/plat-mxc/include/mach/hardware.h
@@ -116,6 +116,10 @@
.type = _type, \
}
+/* There's a off-by-one betweem the gpio bank number and the gpiochip */
+/* range e.g. GPIO_1_5 is gpio 5 under linux */
+#define IMX_GPIO_NR(bank, nr) (((bank) - 1) * 32 + (nr))
+
#define IMX_GPIO_TO_IRQ(gpio) (MXC_GPIO_IRQ_START + (gpio))
#endif /* __ASM_ARCH_MXC_HARDWARE_H__ */