diff options
| author | Linus Walleij | 2016-04-09 15:59:41 +0200 |
|---|---|---|
| committer | Linus Walleij | 2016-04-14 14:03:26 +0200 |
| commit | 148c864260dad94dd037d342679cd62f664a9b21 (patch) | |
| tree | a99a23255b007f9debfab0a0630c133c62dbe08c | |
| parent | 04b8695617fe6efeba5ca20e8be3a5c1879fd74a (diff) | |
gpio: f7188x: use BIT() macro
Align to how we handle bitmasks in most drivers in the
subsystem: using the BIT(n) macro over (1 << n).
Cc: Peter Hung <hpeter@gmail.com>
Cc: Andreas Bofjall <andreas@gazonk.org>
Cc: Simon Guinot <simon.guinot@sequanux.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| -rw-r--r-- | drivers/gpio/gpio-f7188x.c | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/drivers/gpio/gpio-f7188x.c b/drivers/gpio/gpio-f7188x.c index daac2d480db1..8b10fbf787f8 100644 --- a/drivers/gpio/gpio-f7188x.c +++ b/drivers/gpio/gpio-f7188x.c @@ -15,7 +15,8 @@ #include <linux/init.h> #include <linux/platform_device.h> #include <linux/io.h> -#include <linux/gpio.h> +#include <linux/gpio/driver.h> +#include <linux/bitops.h> #define DRVNAME "gpio-f7188x" @@ -217,7 +218,7 @@ static int f7188x_gpio_direction_in(struct gpio_chip *chip, unsigned offset) superio_select(sio->addr, SIO_LD_GPIO); dir = superio_inb(sio->addr, gpio_dir(bank->regbase)); - dir &= ~(1 << offset); + dir &= ~BIT(offset); superio_outb(sio->addr, gpio_dir(bank->regbase), dir); superio_exit(sio->addr); @@ -238,7 +239,7 @@ static int f7188x_gpio_get(struct gpio_chip *chip, unsigned offset) superio_select(sio->addr, SIO_LD_GPIO); dir = superio_inb(sio->addr, gpio_dir(bank->regbase)); - dir = !!(dir & (1 << offset)); + dir = !!(dir & BIT(offset)); if (dir) data = superio_inb(sio->addr, gpio_data_out(bank->regbase)); else @@ -246,7 +247,7 @@ static int f7188x_gpio_get(struct gpio_chip *chip, unsigned offset) superio_exit(sio->addr); - return !!(data & 1 << offset); + return !!(data & BIT(offset)); } static int f7188x_gpio_direction_out(struct gpio_chip *chip, @@ -264,13 +265,13 @@ static int f7188x_gpio_direction_out(struct gpio_chip *chip, data_out = superio_inb(sio->addr, gpio_data_out(bank->regbase)); if (value) - data_out |= (1 << offset); + data_out |= BIT(offset); else - data_out &= ~(1 << offset); + data_out &= ~BIT(offset); superio_outb(sio->addr, gpio_data_out(bank->regbase), data_out); dir = superio_inb(sio->addr, gpio_dir(bank->regbase)); - dir |= (1 << offset); + dir |= BIT(offset); superio_outb(sio->addr, gpio_dir(bank->regbase), dir); superio_exit(sio->addr); @@ -292,9 +293,9 @@ static void f7188x_gpio_set(struct gpio_chip *chip, unsigned offset, int value) data_out = superio_inb(sio->addr, gpio_data_out(bank->regbase)); if (value) - data_out |= (1 << offset); + data_out |= BIT(offset); else - data_out &= ~(1 << offset); + data_out &= ~BIT(offset); superio_outb(sio->addr, gpio_data_out(bank->regbase), data_out); superio_exit(sio->addr); |