[ARM] Orion: GPIO support

Signed-off-by: Tzachi Perelstein <tzachi@marvell.com>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
Acked-by: David Brownell <david-b@pacbell.net>

1 files changed, 27 insertions, 0 deletions

diff --git a/include/asm-arm/arch-orion/gpio.h b/include/asm-arm/arch-orion/gpio.h
new file mode 100644
index 000000000000..6d5848ed9a39
--- /dev/null
+++ b/include/asm-arm/arch-orion/gpio.h
@@ -0,0 +1,27 @@
+/*
+ * include/asm-arm/arch-orion/gpio.h
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+extern int gpio_request(unsigned pin, const char *label);
+extern void gpio_free(unsigned pin);
+extern int gpio_direction_input(unsigned pin);
+extern int gpio_direction_output(unsigned pin, int value);
+extern int gpio_get_value(unsigned pin);
+extern void gpio_set_value(unsigned pin, int value);
+extern void gpio_display(void);         /* debug */
+
+static inline int gpio_to_irq(int pin)
+{
+        return pin + IRQ_ORION_GPIO_START;
+}
+
+static inline int irq_to_gpio(int irq)
+{
+        return irq - IRQ_ORION_GPIO_START;
+}
+
+#include <asm-generic/gpio.h>           /* cansleep wrappers */