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@ -18,10 +18,11 @@ |
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#include <bcm63xx_io.h> |
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#include <bcm63xx_regs.h> |
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static DEFINE_SPINLOCK(bcm63xx_gpio_lock); |
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static u32 gpio_out_low, gpio_out_high; |
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static void bcm63xx_gpio_set(struct gpio_chip *chip, |
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unsigned gpio, int val) |
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unsigned gpio, int val) |
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{ |
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u32 reg; |
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u32 mask; |
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@ -41,13 +42,13 @@ static void bcm63xx_gpio_set(struct gpio_chip *chip, |
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v = &gpio_out_high; |
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} |
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local_irq_save(flags); |
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spin_lock_irqsave(&bcm63xx_gpio_lock, flags); |
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if (val) |
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*v |= mask; |
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else |
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*v &= ~mask; |
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bcm_gpio_writel(*v, reg); |
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local_irq_restore(flags); |
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spin_unlock_irqrestore(&bcm63xx_gpio_lock, flags); |
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} |
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static int bcm63xx_gpio_get(struct gpio_chip *chip, unsigned gpio) |
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@ -70,7 +71,7 @@ static int bcm63xx_gpio_get(struct gpio_chip *chip, unsigned gpio) |
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} |
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static int bcm63xx_gpio_set_direction(struct gpio_chip *chip, |
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unsigned gpio, int dir) |
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unsigned gpio, int dir) |
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{ |
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u32 reg; |
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u32 mask; |
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@ -88,14 +89,14 @@ static int bcm63xx_gpio_set_direction(struct gpio_chip *chip, |
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mask = 1 << (gpio - 32); |
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} |
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local_irq_save(flags); |
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spin_lock_irqsave(&bcm63xx_gpio_lock, flags); |
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tmp = bcm_gpio_readl(reg); |
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if (dir == GPIO_DIR_IN) |
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tmp &= ~mask; |
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else |
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tmp |= mask; |
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bcm_gpio_writel(tmp, reg); |
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local_irq_restore(flags); |
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spin_unlock_irqrestore(&bcm63xx_gpio_lock, flags); |
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return 0; |
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} |
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@ -106,7 +107,7 @@ static int bcm63xx_gpio_direction_input(struct gpio_chip *chip, unsigned gpio) |
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} |
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static int bcm63xx_gpio_direction_output(struct gpio_chip *chip, |
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unsigned gpio, int value) |
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unsigned gpio, int value) |
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{ |
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bcm63xx_gpio_set(chip, gpio, value); |
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return bcm63xx_gpio_set_direction(chip, gpio, GPIO_DIR_OUT); |
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