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staging: mt7621-gpio: use GPIOF_DIR_OUT and GPIOF_DIR_IN macros instead of custom values

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There are macros in gpio kernel's headers to define direction
of a gpio. Use them instead of return custom '0' and '1' values.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Reviewed-by: NeilBrown <neil@brown.name>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sergio Paracuellos 2018-06-01 11:30:54 +02:00 • committed by Greg Kroah-Hartman
commit 1e2735fe1b
1 changed files with 2 additions and 1 deletions
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3
drivers/staging/mt7621-gpio/gpio-mt7621.c
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@ -6,6 +6,7 @@
#include <linux/io.h>
#include <linux/err.h>
#include <linux/gpio.h>
#include <linux/gpio/driver.h>
#include <linux/module.h>
#include <linux/of_irq.h>
@ -127,7 +128,7 @@ mediatek_gpio_get_direction(struct gpio_chip *chip, unsigned int offset)
struct mtk_gc *rg = to_mediatek_gpio(chip);
u32 t = mtk_gpio_r32(rg, GPIO_REG_CTRL);
return (t & BIT(offset)) ? 0 : 1;
return (t & BIT(offset)) ? GPIOF_DIR_OUT : GPIOF_DIR_IN;
}
static int