powerpc: mpc8349emitx: 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: Anatolij Gustschin <agust@denx.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/arch/powerpc/platforms/83xx/mcu_mpc8349emitx.c b/arch/powerpc/platforms/83xx/mcu_mpc8349emitx.c
index 15e8021..dbcd030 100644 (file)
--- a/arch/powerpc/platforms/83xx/mcu_mpc8349emitx.c
+++ b/arch/powerpc/platforms/83xx/mcu_mpc8349emitx.c
@@ -16,7 +16,7 @@
 #include <linux/device.h>
 #include <linux/mutex.h>
 #include <linux/i2c.h>
-#include <linux/gpio.h>
+#include <linux/gpio/driver.h>
 #include <linux/of.h>
 #include <linux/of_gpio.h>
 #include <linux/slab.h>
@@ -99,7 +99,7 @@ static void mcu_power_off(void)
 
 static void mcu_gpio_set(struct gpio_chip *gc, unsigned int gpio, int val)
 {
-       struct mcu *mcu = container_of(gc, struct mcu, gc);
+       struct mcu *mcu = gpiochip_get_data(gc);
        u8 bit = 1 << (4 + gpio);
 
        mutex_lock(&mcu->lock);
@@ -136,7 +136,7 @@ static int mcu_gpiochip_add(struct mcu *mcu)
        gc->direction_output = mcu_gpio_dir_out;
        gc->of_node = np;
 
-       return gpiochip_add(gc);
+       return gpiochip_add_data(gc, mcu);
 }
 
 static int mcu_gpiochip_remove(struct mcu *mcu)