Merge remote-tracking branch 'block/for-next'

[karo-tx-linux.git] / arch / mips / bcm47xx / nvram.c

diff --git a/arch/mips/bcm47xx/nvram.c b/arch/mips/bcm47xx/nvram.c
index cc40b74940f5f6531e4e74cfcf4c665a7b13a9fd..b4c585b1c62eb6279504daea7e1f3a2e7d0b777d 100644 (file)
--- a/arch/mips/bcm47xx/nvram.c
+++ b/arch/mips/bcm47xx/nvram.c
@@ -190,3 +190,23 @@ int bcm47xx_nvram_getenv(char *name, char *val, size_t val_len)
        return -ENOENT;
 }
 EXPORT_SYMBOL(bcm47xx_nvram_getenv);
+
+int bcm47xx_nvram_gpio_pin(const char *name)
+{
+       int i, err;
+       char nvram_var[10];
+       char buf[30];
+
+       for (i = 0; i < 16; i++) {
+               err = snprintf(nvram_var, sizeof(nvram_var), "gpio%i", i);
+               if (err <= 0)
+                       continue;
+               err = bcm47xx_nvram_getenv(nvram_var, buf, sizeof(buf));
+               if (err <= 0)
+                       continue;
+               if (!strcmp(name, buf))
+                       return i;
+       }
+       return -ENOENT;
+}
+EXPORT_SYMBOL(bcm47xx_nvram_gpio_pin);