serial: sc16is7xx: 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>
diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c
index 025a426..e639361 100644
--- a/drivers/tty/serial/sc16is7xx.c
+++ b/drivers/tty/serial/sc16is7xx.c
@@ -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/i2c.h>
#include <linux/module.h>
#include <linux/of.h>
@@ -1104,8 +1104,7 @@
static int sc16is7xx_gpio_get(struct gpio_chip *chip, unsigned offset)
{
unsigned int val;
- struct sc16is7xx_port *s = container_of(chip, struct sc16is7xx_port,
- gpio);
+ struct sc16is7xx_port *s = gpiochip_get_data(chip);
struct uart_port *port = &s->p[0].port;
val = sc16is7xx_port_read(port, SC16IS7XX_IOSTATE_REG);
@@ -1115,8 +1114,7 @@
static void sc16is7xx_gpio_set(struct gpio_chip *chip, unsigned offset, int val)
{
- struct sc16is7xx_port *s = container_of(chip, struct sc16is7xx_port,
- gpio);
+ struct sc16is7xx_port *s = gpiochip_get_data(chip);
struct uart_port *port = &s->p[0].port;
sc16is7xx_port_update(port, SC16IS7XX_IOSTATE_REG, BIT(offset),
@@ -1126,8 +1124,7 @@
static int sc16is7xx_gpio_direction_input(struct gpio_chip *chip,
unsigned offset)
{
- struct sc16is7xx_port *s = container_of(chip, struct sc16is7xx_port,
- gpio);
+ struct sc16is7xx_port *s = gpiochip_get_data(chip);
struct uart_port *port = &s->p[0].port;
sc16is7xx_port_update(port, SC16IS7XX_IODIR_REG, BIT(offset), 0);
@@ -1138,8 +1135,7 @@
static int sc16is7xx_gpio_direction_output(struct gpio_chip *chip,
unsigned offset, int val)
{
- struct sc16is7xx_port *s = container_of(chip, struct sc16is7xx_port,
- gpio);
+ struct sc16is7xx_port *s = gpiochip_get_data(chip);
struct uart_port *port = &s->p[0].port;
sc16is7xx_port_update(port, SC16IS7XX_IOSTATE_REG, BIT(offset),
@@ -1210,7 +1206,7 @@
s->gpio.base = -1;
s->gpio.ngpio = devtype->nr_gpio;
s->gpio.can_sleep = 1;
- ret = gpiochip_add(&s->gpio);
+ ret = gpiochip_add_data(&s->gpio, s);
if (ret)
goto out_thread;
}