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serial: max310x: use gpiochip data pointer 

This makes the driver use the data pointer added to the gpio_chip
to store a pointer to the state container instead of relying on
container_of().

Cc: Jiri Slaby <jslaby@suse.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2015-12-08 23:11:05 +01:00
Родитель cbc3f10f9e
Коммит a00d60a0a2
1 изменённых файлов: 6 добавлений и 6 удалений
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12
drivers/tty/serial/max310x.c
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@ -17,7 +17,7 @@
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/gpio.h>
#include <linux/gpio/driver.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_device.h>
@ -1036,7 +1036,7 @@ static SIMPLE_DEV_PM_OPS(max310x_pm_ops, max310x_suspend, max310x_resume);
static int max310x_gpio_get(struct gpio_chip *chip, unsigned offset)
{
unsigned int val;
struct max310x_port *s = container_of(chip, struct max310x_port, gpio);
struct max310x_port *s = gpiochip_get_data(chip);
struct uart_port *port = &s->p[offset / 4].port;
val = max310x_port_read(port, MAX310X_GPIODATA_REG);
@ -1046,7 +1046,7 @@ static int max310x_gpio_get(struct gpio_chip *chip, unsigned offset)
static void max310x_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
{
struct max310x_port *s = container_of(chip, struct max310x_port, gpio);
struct max310x_port *s = gpiochip_get_data(chip);
struct uart_port *port = &s->p[offset / 4].port;
max310x_port_update(port, MAX310X_GPIODATA_REG, 1 << (offset % 4),
@ -1055,7 +1055,7 @@ static void max310x_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
static int max310x_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
{
struct max310x_port *s = container_of(chip, struct max310x_port, gpio);
struct max310x_port *s = gpiochip_get_data(chip);
struct uart_port *port = &s->p[offset / 4].port;
max310x_port_update(port, MAX310X_GPIOCFG_REG, 1 << (offset % 4), 0);
@ -1066,7 +1066,7 @@ static int max310x_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
static int max310x_gpio_direction_output(struct gpio_chip *chip,
unsigned offset, int value)
{
struct max310x_port *s = container_of(chip, struct max310x_port, gpio);
struct max310x_port *s = gpiochip_get_data(chip);
struct uart_port *port = &s->p[offset / 4].port;
max310x_port_update(port, MAX310X_GPIODATA_REG, 1 << (offset % 4),
@ -1183,7 +1183,7 @@ static int max310x_probe(struct device *dev, struct max310x_devtype *devtype,
s->gpio.base = -1;
s->gpio.ngpio = devtype->nr * 4;
s->gpio.can_sleep = 1;
ret = gpiochip_add(&s->gpio);
ret = gpiochip_add_data(&s->gpio, s);
if (ret)
goto out_uart;
#endif