[ARM] Orion: make gpio /input/output validation separate

Especially on Kirkwood, a couple GPIOs are actually only output capable.
Let's separate the ability to configure a GPIO as input or output to
accommodate this restriction.

Signed-off-by: Nicolas Pitre <nico@marvell.com>

1 files changed, 5 insertions, 1 deletions

diff --git a/arch/arm/plat-orion/include/plat/gpio.h b/arch/arm/plat-orion/include/plat/gpio.h
index ec743e82c876..33f6c6aec185 100644
--- a/arch/arm/plat-orion/include/plat/gpio.h
+++ b/arch/arm/plat-orion/include/plat/gpio.h
@@ -25,9 +25,13 @@ void gpio_set_value(unsigned pin, int value);
  * Orion-specific GPIO API extensions.
  */
 void orion_gpio_set_unused(unsigned pin);
-void orion_gpio_set_valid(unsigned pin, int valid);
 void orion_gpio_set_blink(unsigned pin, int blink);
 
+#define GPIO_BIDI_OK            (1 << 0)
+#define GPIO_INPUT_OK           (1 << 1)
+#define GPIO_OUTPUT_OK          (1 << 2)
+void orion_gpio_set_valid(unsigned pin, int mode);
+
 /*
  * GPIO interrupt handling.
  */