[PATCH 007/182] gpio: 74x164: use gpiochip data pointer

[Linus Walleij <linus.walleij@xxxxxxxxxx>]

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: Alexander Shiyan <shc_work@xxxxxxx>
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
---
 drivers/gpio/gpio-74x164.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/drivers/gpio/gpio-74x164.c b/drivers/gpio/gpio-74x164.c
index fb555300008f..34c20e802da9 100644
--- a/drivers/gpio/gpio-74x164.c
+++ b/drivers/gpio/gpio-74x164.c
@@ -26,11 +26,6 @@ struct gen_74x164_chip {
 	u32			registers;
 };
 
-static struct gen_74x164_chip *gpio_to_74x164_chip(struct gpio_chip *gc)
-{
-	return container_of(gc, struct gen_74x164_chip, gpio_chip);
-}
-
 static int __gen_74x164_write_config(struct gen_74x164_chip *chip)
 {
 	struct spi_device *spi = to_spi_device(chip->gpio_chip.parent);
@@ -68,7 +63,7 @@ static int __gen_74x164_write_config(struct gen_74x164_chip *chip)
 
 static int gen_74x164_get_value(struct gpio_chip *gc, unsigned offset)
 {
-	struct gen_74x164_chip *chip = gpio_to_74x164_chip(gc);
+	struct gen_74x164_chip *chip = gpiochip_get_data(gc);
 	u8 bank = offset / 8;
 	u8 pin = offset % 8;
 	int ret;
@@ -83,7 +78,7 @@ static int gen_74x164_get_value(struct gpio_chip *gc, unsigned offset)
 static void gen_74x164_set_value(struct gpio_chip *gc,
 		unsigned offset, int val)
 {
-	struct gen_74x164_chip *chip = gpio_to_74x164_chip(gc);
+	struct gen_74x164_chip *chip = gpiochip_get_data(gc);
 	u8 bank = offset / 8;
 	u8 pin = offset % 8;
 
@@ -154,7 +149,7 @@ static int gen_74x164_probe(struct spi_device *spi)
 		goto exit_destroy;
 	}
 
-	ret = gpiochip_add(&chip->gpio_chip);
+	ret = gpiochip_add_data(&chip->gpio_chip, chip);
 	if (!ret)
 		return 0;
 
-- 
2.4.3

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