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ar7_gpio: remove unneeded checks and volatile

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SVN-Revision: 9419
This commit is contained in:
Matteo Croce 2007-10-23 15:45:54 +00:00
parent 71f9b205e4
commit 788a010131
1 changed files with 2 additions and 14 deletions
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16
target/linux/ar7/files/include/asm-mips/ar7/gpio.h
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@ -31,20 +31,14 @@ static inline int gpio_get_value(unsigned gpio)
void __iomem *gpio_in = void __iomem *gpio_in =
(void __iomem *)KSEG1ADDR(AR7_REGS_GPIO + AR7_GPIO_INPUT); (void __iomem *)KSEG1ADDR(AR7_REGS_GPIO + AR7_GPIO_INPUT);
if (gpio >= AR7_GPIO_MAX) return readl(gpio_in) & (1 << gpio);
return -EINVAL;
return ((readl(gpio_in) & (1 << gpio)) != 0);
} }
static inline void gpio_set_value(unsigned gpio, int value) static inline void gpio_set_value(unsigned gpio, int value)
{ {
void __iomem *gpio_out = void __iomem *gpio_out =
(void __iomem *)KSEG1ADDR(AR7_REGS_GPIO + AR7_GPIO_OUTPUT); (void __iomem *)KSEG1ADDR(AR7_REGS_GPIO + AR7_GPIO_OUTPUT);
volatile unsigned tmp; unsigned tmp;
if (gpio >= AR7_GPIO_MAX)
return;
tmp = readl(gpio_out) & ~(1 << gpio); tmp = readl(gpio_out) & ~(1 << gpio);
if (value) if (value)
@ -95,9 +89,6 @@ static inline int ar7_gpio_enable(unsigned gpio)
void __iomem *gpio_en = void __iomem *gpio_en =
(void __iomem *)KSEG1ADDR(AR7_REGS_GPIO + AR7_GPIO_ENABLE); (void __iomem *)KSEG1ADDR(AR7_REGS_GPIO + AR7_GPIO_ENABLE);
if (gpio >= AR7_GPIO_MAX)
return -EINVAL;
writel(readl(gpio_en) | (1 << gpio), gpio_en); writel(readl(gpio_en) | (1 << gpio), gpio_en);
return 0; return 0;
@ -108,9 +99,6 @@ static inline int ar7_gpio_disable(unsigned gpio)
void __iomem *gpio_en = void __iomem *gpio_en =
(void __iomem *)KSEG1ADDR(AR7_REGS_GPIO + AR7_GPIO_ENABLE); (void __iomem *)KSEG1ADDR(AR7_REGS_GPIO + AR7_GPIO_ENABLE);
if (gpio >= AR7_GPIO_MAX)
return -EINVAL;
writel(readl(gpio_en) & ~(1 << gpio), gpio_en); writel(readl(gpio_en) & ~(1 << gpio), gpio_en);
return 0; return 0;