diff options
author | Patrick Glass <patrickglass@gmail.com> | 2008-08-18 23:41:30 +0200 |
---|---|---|
committer | Ralf Baechle <ralf@linux-mips.org> | 2008-10-11 17:18:41 +0200 |
commit | 9fa32c6b0275ab1e8b19f74fbfa3ed8411345db6 (patch) | |
tree | 28a3b9705a31bf634e65595ca760e33e768da778 /include/asm-mips | |
parent | MIPS: Use compat_sys_ptrace (diff) | |
download | linux-9fa32c6b0275ab1e8b19f74fbfa3ed8411345db6.tar.xz linux-9fa32c6b0275ab1e8b19f74fbfa3ed8411345db6.zip |
MIPS: PMC MSP71XX gpio drivers
This new gpio driver for PMC-Sierra's MSP71xx SoC allows
standard api calls for access to the general and extended
gpio's.
Signed-off-by: Patrick Glass <patrickglass@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
create mode 100755 arch/mips/pmc-sierra/msp71xx/gpio.c
create mode 100755 arch/mips/pmc-sierra/msp71xx/gpio_extended.c
create mode 100755 include/asm-mips/pmc-sierra/msp71xx/gpio.h
Diffstat (limited to 'include/asm-mips')
-rw-r--r-- | include/asm-mips/pmc-sierra/msp71xx/gpio.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/include/asm-mips/pmc-sierra/msp71xx/gpio.h b/include/asm-mips/pmc-sierra/msp71xx/gpio.h new file mode 100644 index 000000000000..ebdbab973e41 --- /dev/null +++ b/include/asm-mips/pmc-sierra/msp71xx/gpio.h @@ -0,0 +1,46 @@ +/* + * include/asm-mips/pmc-sierra/msp71xx/gpio.h + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * @author Patrick Glass <patrickglass@gmail.com> + */ + +#ifndef __PMC_MSP71XX_GPIO_H +#define __PMC_MSP71XX_GPIO_H + +/* Max number of gpio's is 28 on chip plus 3 banks of I2C IO Expanders */ +#define ARCH_NR_GPIOS (28 + (3 * 8)) + +/* new generic GPIO API - see Documentation/gpio.txt */ +#include <asm-generic/gpio.h> + +#define gpio_get_value __gpio_get_value +#define gpio_set_value __gpio_set_value +#define gpio_cansleep __gpio_cansleep + +/* Setup calls for the gpio and gpio extended */ +extern void msp71xx_init_gpio(void); +extern void msp71xx_init_gpio_extended(void); +extern int msp71xx_set_output_drive(unsigned gpio, int value); + +/* Custom output drive functionss */ +static inline int gpio_set_output_drive(unsigned gpio, int value) +{ + return msp71xx_set_output_drive(gpio, value); +} + +/* IRQ's are not supported for gpio lines */ +static inline int gpio_to_irq(unsigned gpio) +{ + return -EINVAL; +} + +static inline int irq_to_gpio(unsigned irq) +{ + return -EINVAL; +} + +#endif /* __PMC_MSP71XX_GPIO_H */ |