arch/mips/include/asm/pmc-sierra/msp71xx/gpio.h

   1 /*
   2  * include/asm-mips/pmc-sierra/msp71xx/gpio.h
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License version 2 as
   6  * published by the Free Software Foundation.
   7  *
   8  * @author Patrick Glass <patrickglass@gmail.com>
   9  */
  10
  11 #ifndef __PMC_MSP71XX_GPIO_H
  12 #define __PMC_MSP71XX_GPIO_H
  13
  14 /* Max number of gpio's is 28 on chip plus 3 banks of I2C IO Expanders */
  15 #define ARCH_NR_GPIOS (28 + (3 * 8))
  16
  17 /* new generic GPIO API - see Documentation/gpio.txt */
  18 #include <asm-generic/gpio.h>
  19
  20 #define gpio_get_value  __gpio_get_value
  21 #define gpio_set_value  __gpio_set_value
  22 #define gpio_cansleep   __gpio_cansleep
  23
  24 /* Setup calls for the gpio and gpio extended */
  25 extern void msp71xx_init_gpio(void);
  26 extern void msp71xx_init_gpio_extended(void);
  27 extern int msp71xx_set_output_drive(unsigned gpio, int value);
  28
  29 /* Custom output drive functionss */
  30 static inline int gpio_set_output_drive(unsigned gpio, int value)
  31 {
  32         return msp71xx_set_output_drive(gpio, value);
  33 }
  34
  35 /* IRQ's are not supported for gpio lines */
  36 static inline int gpio_to_irq(unsigned gpio)
  37 {
  38         return -EINVAL;
  39 }
  40
  41 static inline int irq_to_gpio(unsigned irq)
  42 {
  43         return -EINVAL;
  44 }
  45
  46 #endif /* __PMC_MSP71XX_GPIO_H */