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gpio: janz-ttl: Use BIT() macro

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This makes the code more readable by using the BIT() macro.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2018-03-12 12:11:45 +01:00
parent 1c947b7f48
commit 96d0d03dc4
1 changed files with 7 additions and 6 deletions
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13
drivers/gpio/gpio-janz-ttl.c
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@ -18,6 +18,7 @@
#include <linux/io.h>
#include <linux/gpio/driver.h>
#include <linux/slab.h>
#include <linux/bitops.h>
#include <linux/mfd/janz.h>
@ -33,9 +34,9 @@
#define MASTER_INT_CTL 0x00
#define MASTER_CONF_CTL 0x01
#define CONF_PAE (1 << 2)
#define CONF_PBE (1 << 7)
#define CONF_PCE (1 << 4)
#define CONF_PAE BIT(2)
#define CONF_PBE BIT(7)
#define CONF_PCE BIT(4)
struct ttl_control_regs {
__be16 portc;
@ -74,7 +75,7 @@ static int ttl_get_value(struct gpio_chip *gpio, unsigned offset)
}
spin_lock(&mod->lock);
ret = *shadow & (1 << offset);
ret = *shadow & BIT(offset);
spin_unlock(&mod->lock);
return !!ret;
}
@ -100,9 +101,9 @@ static void ttl_set_value(struct gpio_chip *gpio, unsigned offset, int value)
spin_lock(&mod->lock);
if (value)
*shadow |= (1 << offset);
*shadow |= BIT(offset);
else
*shadow &= ~(1 << offset);
*shadow &= ~BIT(offset);
iowrite16be(*shadow, port);
spin_unlock(&mod->lock);