target/linux/brcm47xx/patches-3.10/180-bcm47xx-nvram-gpio.patch

   1 --- a/arch/mips/bcm47xx/nvram.c
   2 +++ b/arch/mips/bcm47xx/nvram.c
   3 @@ -190,3 +190,23 @@ int bcm47xx_nvram_getenv(char *name, cha
   4         return -ENOENT;
   5  }
   6  EXPORT_SYMBOL(bcm47xx_nvram_getenv);
   7 +
   8 +int bcm47xx_nvram_gpio_pin(const char *name)
   9 +{
  10 +       int i, err;
  11 +       char nvram_var[10];
  12 +       char buf[30];
  13 +
  14 +       for (i = 0; i < 16; i++) {
  15 +               err = snprintf(nvram_var, sizeof(nvram_var), "gpio%i", i);
  16 +               if (err <= 0)
  17 +                       continue;
  18 +               err = bcm47xx_nvram_getenv(nvram_var, buf, sizeof(buf));
  19 +               if (err <= 0)
  20 +                       continue;
  21 +               if (!strcmp(name, buf))
  22 +                       return i;
  23 +       }
  24 +       return -ENOENT;
  25 +}
  26 +EXPORT_SYMBOL(bcm47xx_nvram_gpio_pin);
  27 --- a/arch/mips/include/asm/mach-bcm47xx/bcm47xx_nvram.h
  28 +++ b/arch/mips/include/asm/mach-bcm47xx/bcm47xx_nvram.h
  29 @@ -48,4 +48,6 @@ static inline void bcm47xx_nvram_parse_m
  30                 printk(KERN_WARNING "Can not parse mac address: %s\n", buf);
  31  }
  32
  33 +int bcm47xx_nvram_gpio_pin(const char *name);
  34 +
  35  #endif /* __BCM47XX_NVRAM_H */