make all AR913x GPIO lines usable

SVN-Revision: 13509

diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/gpio.c b/target/linux/ar71xx/files/arch/mips/ar71xx/gpio.c
index 03bf38b7c0d94a350ae45d98f8601ce97c868daf..a3d00aeedd3713a27f6b747cd7c07477eded53a0 100644 (file)
--- 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);

diff --git a/target/linux/ar71xx/files/include/asm-mips/mach-ar71xx/ar71xx.h b/target/linux/ar71xx/files/include/asm-mips/mach-ar71xx/ar71xx.h
index 78cf1ca24437ea1a8119a47868fc00fe01066bbd..5e551a14fdfdaa9c877b590d60890eac11048554 100644 (file)
--- a/target/linux/ar71xx/files/include/asm-mips/mach-ar71xx/ar71xx.h
+++ b/target/linux/ar71xx/files/include/asm-mips/mach-ar71xx/ar71xx.h
@@ -206,6 +206,7 @@ extern void ar71xx_add_device_usb(void) __init;
 #define GPIO_FUNC_USB_CLK_EN   BIT(0)
 
 #define AR71XX_GPIO_COUNT      16
+#define AR91XX_GPIO_COUNT      22
 
 extern void __iomem *ar71xx_gpio_base;
 

diff --git a/target/linux/ar71xx/files/include/asm-mips/mach-ar71xx/gpio.h b/target/linux/ar71xx/files/include/asm-mips/mach-ar71xx/gpio.h
index 347727001bf2a3850278bedd9fdb399f21217978..6354d68cf3ea0b0322831244b8318a2d939fc3ef 100644 (file)
--- a/target/linux/ar71xx/files/include/asm-mips/mach-ar71xx/gpio.h
+++ b/target/linux/ar71xx/files/include/asm-mips/mach-ar71xx/gpio.h
@@ -18,6 +18,7 @@
 
 #include <asm/mach-ar71xx/ar71xx.h>
 
+extern unsigned long ar71xx_gpio_count;
 extern void __ar71xx_gpio_set_value(unsigned gpio, int value);
 extern int __ar71xx_gpio_get_value(unsigned gpio);
 
@@ -33,7 +34,7 @@ static inline int irq_to_gpio(unsigned irq)
 
 static inline int gpio_get_value(unsigned gpio)
 {
-       if (gpio < AR71XX_GPIO_COUNT)
+       if (gpio < ar71xx_gpio_count)
                return __ar71xx_gpio_get_value(gpio);
 
        return __gpio_get_value(gpio);
@@ -41,7 +42,7 @@ static inline int gpio_get_value(unsigned gpio)
 
 static inline void gpio_set_value(unsigned gpio, int value)
 {
-       if (gpio < AR71XX_GPIO_COUNT)
+       if (gpio < ar71xx_gpio_count)
                __ar71xx_gpio_set_value(gpio, value);
        else
                __gpio_set_value(gpio, value);