[AR7] GPIO fix

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@10180 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/target/linux/ar7/files/include/asm-mips/ar7/gpio.h b/target/linux/ar7/files/include/asm-mips/ar7/gpio.h
index 7d665ff..00418b5 100644 (file)
--- a/target/linux/ar7/files/include/asm-mips/ar7/gpio.h
+++ b/target/linux/ar7/files/include/asm-mips/ar7/gpio.h
@@ -41,15 +41,14 @@ static inline int gpio_get_value(unsigned gpio)
 
 static inline void gpio_set_value(unsigned gpio, int value)
 {
-       static unsigned addr;
+       static void __iomem *gpio_out;
        unsigned tmp;
 
-       void __iomem *gpio_out =
-               (void __iomem *)KSEG1ADDR(AR7_REGS_GPIO + AR7_GPIO_OUTPUT);
-       if (!addr)
-               addr = readl(gpio_out);
+       if (!gpio_out)
+               gpio_out = (void __iomem *)
+                               KSEG1ADDR(AR7_REGS_GPIO + AR7_GPIO_OUTPUT);
 
-       tmp = addr & ~(1 << gpio);
+       tmp = readl(gpio_out) & ~(1 << gpio);
        if (value)
                tmp |= 1 << gpio;
        writel(tmp, gpio_out);