GPIO: xilinx: Use BIT macro
Use BIT macro from linux/bitops.h.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/gpio/gpio-xilinx.c b/drivers/gpio/gpio-xilinx.c
index 791ddae..792a05a 100644
--- a/drivers/gpio/gpio-xilinx.c
+++ b/drivers/gpio/gpio-xilinx.c
@@ -94,9 +94,9 @@
/* Write to GPIO signal and set its direction to output */
if (val)
- chip->gpio_state |= 1 << gpio;
+ chip->gpio_state |= BIT(gpio);
else
- chip->gpio_state &= ~(1 << gpio);
+ chip->gpio_state &= ~BIT(gpio);
xgpio_writereg(regs + chip->offset + XGPIO_DATA_OFFSET,
chip->gpio_state);
@@ -124,7 +124,7 @@
spin_lock_irqsave(&chip->gpio_lock, flags);
/* Set the GPIO bit in shadow register and set direction as input */
- chip->gpio_dir |= (1 << gpio);
+ chip->gpio_dir |= BIT(gpio);
xgpio_writereg(regs + chip->offset + XGPIO_TRI_OFFSET, chip->gpio_dir);
spin_unlock_irqrestore(&chip->gpio_lock, flags);
@@ -154,14 +154,14 @@
/* Write state of GPIO signal */
if (val)
- chip->gpio_state |= 1 << gpio;
+ chip->gpio_state |= BIT(gpio);
else
- chip->gpio_state &= ~(1 << gpio);
+ chip->gpio_state &= ~BIT(gpio);
xgpio_writereg(regs + chip->offset + XGPIO_DATA_OFFSET,
chip->gpio_state);
/* Clear the GPIO bit in shadow register and set direction as output */
- chip->gpio_dir &= (~(1 << gpio));
+ chip->gpio_dir &= ~BIT(gpio);
xgpio_writereg(regs + chip->offset + XGPIO_TRI_OFFSET, chip->gpio_dir);
spin_unlock_irqrestore(&chip->gpio_lock, flags);