[ARM] Orion: provide GPIO method for enabling hardware assisted blinking

[linux-2.6-omap-h63xx.git] / arch / arm / mach-orion / gpio.c

diff --git a/arch/arm/mach-orion/gpio.c b/arch/arm/mach-orion/gpio.c
index af8553ccd230b9d8652839246cfb20a4f0aaa907..0418f5b1ebe77612507992b725e6522f6eec2d32 100644 (file)
--- a/arch/arm/mach-orion/gpio.c
+++ b/arch/arm/mach-orion/gpio.c
@@ -76,6 +76,7 @@ int gpio_direction_output(unsigned pin, int value)
                gpio_label[pin] = "?";
 
        mask = 1 << pin;
+       orion_clrbits(GPIO_BLINK_EN, mask);
        if (value)
                orion_setbits(GPIO_OUT, mask);
        else
@@ -107,6 +108,7 @@ void gpio_set_value(unsigned pin, int value)
 
        spin_lock_irqsave(&gpio_lock, flags);
 
+       orion_clrbits(GPIO_BLINK_EN, mask);
        if (value)
                orion_setbits(GPIO_OUT, mask);
        else
@@ -116,6 +118,23 @@ void gpio_set_value(unsigned pin, int value)
 }
 EXPORT_SYMBOL(gpio_set_value);
 
+void orion_gpio_set_blink(unsigned pin, int blink)
+{
+       unsigned long flags;
+       int mask = 1 << pin;
+
+       spin_lock_irqsave(&gpio_lock, flags);
+
+       orion_clrbits(GPIO_OUT, mask);
+       if (blink)
+               orion_setbits(GPIO_BLINK_EN, mask);
+       else
+               orion_clrbits(GPIO_BLINK_EN, mask);
+
+       spin_unlock_irqrestore(&gpio_lock, flags);
+}
+EXPORT_SYMBOL(orion_gpio_set_blink);
+
 int gpio_request(unsigned pin, const char *label)
 {
        int ret = 0;