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-rw-r--r--include/asm-generic/gpio.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h
index 40ec143..8ca627d 100644
--- a/include/asm-generic/gpio.h
+++ b/include/asm-generic/gpio.h
@@ -26,8 +26,12 @@
*/
#ifndef ARCH_NR_GPIOS
+#if defined(CONFIG_ARCH_NR_GPIO) && CONFIG_ARCH_NR_GPIO > 0
+#define ARCH_NR_GPIOS CONFIG_ARCH_NR_GPIO
+#else
#define ARCH_NR_GPIOS 512
#endif
+#endif
/*
* "valid" GPIO numbers are nonnegative and may be passed to
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