gpio: revert it back, wrong and useless

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@10181 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 00418b586347f194ed5a3b31c0f430f5db72f8aa..2e19fcae9d9f9c6ea3f97d32bf8047a006dec312 100644 (file)
--- a/target/linux/ar7/files/include/asm-mips/ar7/gpio.h
+++ b/target/linux/ar7/files/include/asm-mips/ar7/gpio.h
@@ -28,26 +28,18 @@ extern void gpio_free(unsigned gpio);
 /* Common GPIO layer */
 static inline int gpio_get_value(unsigned gpio)
 {
-       static unsigned addr;
+       void __iomem *gpio_in =
+               (void __iomem *)KSEG1ADDR(AR7_REGS_GPIO + AR7_GPIO_INPUT);
 
-       if (!addr) {
-               void __iomem *gpio_in = (void __iomem *)
-                               KSEG1ADDR(AR7_REGS_GPIO + AR7_GPIO_INPUT);
-               addr = readl(gpio_in);
-       }
-
-       return addr & (1 << gpio);
+       return readl(gpio_in) & (1 << gpio);
 }
 
 static inline void gpio_set_value(unsigned gpio, int value)
 {
-       static void __iomem *gpio_out;
+       void __iomem *gpio_out =
+               (void __iomem *)KSEG1ADDR(AR7_REGS_GPIO + AR7_GPIO_OUTPUT);
        unsigned tmp;
 
-       if (!gpio_out)
-               gpio_out = (void __iomem *)
-                               KSEG1ADDR(AR7_REGS_GPIO + AR7_GPIO_OUTPUT);
-
        tmp = readl(gpio_out) & ~(1 << gpio);
        if (value)
                tmp |= 1 << gpio;