From cebd35e4e89f35bd79409d68fdc92c53d6ea23e1 Mon Sep 17 00:00:00 2001 From: Marc Reilly Date: Sat, 11 Dec 2010 18:39:43 +1100 Subject: imx: add IMX_GPIO_NR macro. Simplifies specifying gpio numbers from bank/number info. From linux kernel. Signed-off-by: Marc Reilly Signed-off-by: Sascha Hauer --- arch/arm/mach-imx/include/mach/imx-regs.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'arch/arm/mach-imx/include/mach/imx-regs.h') diff --git a/arch/arm/mach-imx/include/mach/imx-regs.h b/arch/arm/mach-imx/include/mach/imx-regs.h index 605d320d9a..a234621374 100644 --- a/arch/arm/mach-imx/include/mach/imx-regs.h +++ b/arch/arm/mach-imx/include/mach/imx-regs.h @@ -57,6 +57,10 @@ # error "unknown i.MX soc type" #endif +/* 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 GPIO_PIN_MASK 0x1f #define GPIO_PORT_SHIFT 5 -- cgit v1.2.3