44 lines
1.2 KiB
Diff
44 lines
1.2 KiB
Diff
--- a/arch/mips/ath79/common.h
|
|
+++ b/arch/mips/ath79/common.h
|
|
@@ -28,6 +28,7 @@ void ath79_gpio_function_enable(u32 mask
|
|
void ath79_gpio_function_disable(u32 mask);
|
|
void ath79_gpio_function_setup(u32 set, u32 clear);
|
|
void ath79_gpio_output_select(unsigned gpio, u8 val);
|
|
+int ath79_gpio_direction_select(unsigned gpio, bool oe);
|
|
void ath79_gpio_init(void);
|
|
|
|
#endif /* __ATH79_COMMON_H */
|
|
--- a/arch/mips/ath79/gpio.c
|
|
+++ b/arch/mips/ath79/gpio.c
|
|
@@ -130,6 +130,30 @@ static int ar934x_gpio_direction_output(
|
|
return 0;
|
|
}
|
|
|
|
+int ath79_gpio_direction_select(unsigned gpio, bool oe)
|
|
+{
|
|
+ void __iomem *base = ath79_gpio_base;
|
|
+ unsigned long flags;
|
|
+ bool ieq_1 = (soc_is_ar934x() ||
|
|
+ soc_is_qca953x());
|
|
+
|
|
+ if (gpio >= ath79_gpio_count)
|
|
+ return -1;
|
|
+
|
|
+ spin_lock_irqsave(&ath79_gpio_lock, flags);
|
|
+
|
|
+ if ((ieq_1 && oe) || (!ieq_1 && !oe))
|
|
+ __raw_writel(__raw_readl(base + AR71XX_GPIO_REG_OE) & ~(1 << gpio),
|
|
+ base + AR71XX_GPIO_REG_OE);
|
|
+ else
|
|
+ __raw_writel(__raw_readl(base + AR71XX_GPIO_REG_OE) | (1 << gpio),
|
|
+ base + AR71XX_GPIO_REG_OE);
|
|
+
|
|
+ spin_unlock_irqrestore(&ath79_gpio_lock, flags);
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
static struct gpio_chip ath79_gpio_chip = {
|
|
.label = "ath79",
|
|
.get = ath79_gpio_get_value,
|