commit cf90c9e35be883d8ebcca3d4a2b1044a234f24d8
author Linus Walleij <linus.walleij@linaro.org> Mon Dec 07 10:07:07 2015 +0100
committer Linus Walleij <linus.walleij@linaro.org> Tue Jan 05 11:21:08 2016 +0100
tree 2fd9f3b09b2698f900112ff7b4314264293e8924
parent 609f9692ccd7034aaf620a6cd4ec1b6fb9ba4c7b

gpio: mc9s08dz60: 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: wu guoxing <b39297@freescale.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/gpio/gpio-mc9s08dz60.c

diff --git a/drivers/gpio/gpio-mc9s08dz60.c b/drivers/gpio/gpio-mc9s08dz60.c
index 45f1760..ba22fb9 100644
--- a/drivers/gpio/gpio-mc9s08dz60.c
+++ b/drivers/gpio/gpio-mc9s08dz60.c
@@ -29,12 +29,6 @@
 	struct gpio_chip chip;
 };
 
-static inline struct mc9s08dz60 *to_mc9s08dz60(struct gpio_chip *gc)
-{
-	return container_of(gc, struct mc9s08dz60, chip);
-}
-
-
 static void mc9s_gpio_to_reg_and_bit(int offset, u8 *reg, u8 *bit)
 {
 	*reg = 0x20 + offset / GPIO_NUM_PER_GROUP;
@@ -45,7 +39,7 @@
 {
 	u8 reg, bit;
 	s32 value;
-	struct mc9s08dz60 *mc9s = to_mc9s08dz60(gc);
+	struct mc9s08dz60 *mc9s = gpiochip_get_data(gc);
 
 	mc9s_gpio_to_reg_and_bit(offset, &reg, &bit);
 	value = i2c_smbus_read_byte_data(mc9s->client, reg);
@@ -75,7 +69,7 @@
 
 static void mc9s08dz60_set_value(struct gpio_chip *gc, unsigned offset, int val)
 {
-	struct mc9s08dz60 *mc9s = to_mc9s08dz60(gc);
+	struct mc9s08dz60 *mc9s = gpiochip_get_data(gc);
 
 	mc9s08dz60_set(mc9s, offset, val);
 }
@@ -83,7 +77,7 @@
 static int mc9s08dz60_direction_output(struct gpio_chip *gc,
 				       unsigned offset, int val)
 {
-	struct mc9s08dz60 *mc9s = to_mc9s08dz60(gc);
+	struct mc9s08dz60 *mc9s = gpiochip_get_data(gc);
 
 	return mc9s08dz60_set(mc9s, offset, val);
 }
@@ -109,7 +103,7 @@
 	mc9s->client = client;
 	i2c_set_clientdata(client, mc9s);
 
-	return gpiochip_add(&mc9s->chip);
+	return gpiochip_add_data(&mc9s->chip, mc9s);
 }
 
 static int mc9s08dz60_remove(struct i2c_client *client)