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-rw-r--r--target/linux/ar71xx/files/arch/mips/ar71xx/gpio.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/gpio.c b/target/linux/ar71xx/files/arch/mips/ar71xx/gpio.c
index 03bf38b7c..a3d00aeed 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/gpio.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/gpio.c
@@ -22,6 +22,9 @@
static DEFINE_SPINLOCK(ar71xx_gpio_lock);
+unsigned long ar71xx_gpio_count;
+EXPORT_SYMBOL(ar71xx_gpio_count);
+
void __ar71xx_gpio_set_value(unsigned gpio, int value)
{
unsigned long flags;
@@ -129,6 +132,22 @@ void __init ar71xx_gpio_init(void)
"AR71xx GPIO controller"))
panic("cannot allocate AR71xx GPIO registers page");
+ switch (ar71xx_soc) {
+ case AR71XX_SOC_AR7130:
+ case AR71XX_SOC_AR7141:
+ case AR71XX_SOC_AR7161:
+ ar71xx_gpio_chip.ngpio = AR71XX_GPIO_COUNT;
+ break;
+
+ case AR71XX_SOC_AR9130:
+ case AR71XX_SOC_AR9132:
+ ar71xx_gpio_chip.ngpio = AR91XX_GPIO_COUNT;
+ break;
+
+ default:
+ BUG();
+ }
+
err = gpiochip_add(&ar71xx_gpio_chip);
if (err)
panic("cannot add AR71xx GPIO chip, error=%d", err);