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| author | Marc Reilly <marc@cpdesign.com.au> | 2010-12-11 18:39:43 +1100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2010-12-12 09:26:25 +0100 |
| commit | cebd35e4e89f35bd79409d68fdc92c53d6ea23e1 (patch) | |
| tree | 8e85a17208c14018fbcc72b13e5998f327c852d5 /arch/arm/mach-imx/include/mach/imx-regs.h | |
| parent | 4f21f1ec978c5cb43a25d1b52a49ff5fe84d4206 (diff) | |
| download | barebox-cebd35e4e89f35bd79409d68fdc92c53d6ea23e1.tar.gz barebox-cebd35e4e89f35bd79409d68fdc92c53d6ea23e1.tar.xz | |
imx: add IMX_GPIO_NR macro.
Simplifies specifying gpio numbers from bank/number info.
From linux kernel.
Signed-off-by: Marc Reilly <marc@cpdesign.com.au>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/mach-imx/include/mach/imx-regs.h')
| -rw-r--r-- | arch/arm/mach-imx/include/mach/imx-regs.h | 4 |
1 files changed, 4 insertions, 0 deletions
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 |