From: Matteo Croce <rootkit85@yahoo.it>
Date: Tue, 23 Oct 2007 15:45:54 +0000 (+0000)
Subject: ar7_gpio: remove unneeded checks and volatile
X-Git-Tag: reboot~27746
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=788a010131706f80582e9577d2fa43fb8b33e22b;p=openwrt%2Fstaging%2Flynxis.git

ar7_gpio: remove unneeded checks and volatile

SVN-Revision: 9419
---

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 a7ae1eeae1..2e19fcae9d 100644
--- a/target/linux/ar7/files/include/asm-mips/ar7/gpio.h
+++ b/target/linux/ar7/files/include/asm-mips/ar7/gpio.h
@@ -31,20 +31,14 @@ static inline int gpio_get_value(unsigned gpio)
 	void __iomem *gpio_in =
 		(void __iomem *)KSEG1ADDR(AR7_REGS_GPIO + AR7_GPIO_INPUT);
 
-	if (gpio >= AR7_GPIO_MAX)
-		return -EINVAL;
-
-	return ((readl(gpio_in) & (1 << gpio)) != 0);
+	return readl(gpio_in) & (1 << gpio);
 }
 
 static inline void gpio_set_value(unsigned gpio, int value)
 {
 	void __iomem *gpio_out =
 		(void __iomem *)KSEG1ADDR(AR7_REGS_GPIO + AR7_GPIO_OUTPUT);
-	volatile unsigned tmp;
-
-	if (gpio >= AR7_GPIO_MAX)
-		return;
+	unsigned tmp;
 
 	tmp = readl(gpio_out) & ~(1 << gpio);
 	if (value)
@@ -95,9 +89,6 @@ static inline int ar7_gpio_enable(unsigned gpio)
 	void __iomem *gpio_en =
 		(void __iomem *)KSEG1ADDR(AR7_REGS_GPIO + AR7_GPIO_ENABLE);
 
-	if (gpio >= AR7_GPIO_MAX)
-		return -EINVAL;
-
 	writel(readl(gpio_en) | (1 << gpio), gpio_en);
 
 	return 0;
@@ -108,9 +99,6 @@ static inline int ar7_gpio_disable(unsigned gpio)
 	void __iomem *gpio_en =
 		(void __iomem *)KSEG1ADDR(AR7_REGS_GPIO + AR7_GPIO_ENABLE);
 
-	if (gpio >= AR7_GPIO_MAX)
-		return -EINVAL;
-
 	writel(readl(gpio_en) & ~(1 << gpio), gpio_en);
 
 	return 0;