1 files changed, 19 insertions, 27 deletions

diff --git a/drivers/gpio/gpio-viperboard.c b/drivers/gpio/gpio-viperboard.c
index e2a11f278..1170b035c 100644
--- a/drivers/gpio/gpio-viperboard.c
+++ b/drivers/gpio/gpio-viperboard.c
@@ -88,14 +88,13 @@ static int vprbrd_gpioa_get(struct gpio_chip *chip,
 		unsigned offset)
 {
 	int ret, answer, error = 0;
-	struct vprbrd_gpio *gpio =
-			container_of(chip, struct vprbrd_gpio, gpioa);
+	struct vprbrd_gpio *gpio = gpiochip_get_data(chip);
 	struct vprbrd *vb = gpio->vb;
 	struct vprbrd_gpioa_msg *gamsg = (struct vprbrd_gpioa_msg *)vb->buf;
 
 	/* if io is set to output, just return the saved value */
 	if (gpio->gpioa_out & (1 << offset))
-		return gpio->gpioa_val & (1 << offset);
+		return !!(gpio->gpioa_val & (1 << offset));
 
 	mutex_lock(&vb->lock);
 
@@ -139,8 +138,7 @@ static void vprbrd_gpioa_set(struct gpio_chip *chip,
 		unsigned offset, int value)
 {
 	int ret;
-	struct vprbrd_gpio *gpio =
-			container_of(chip, struct vprbrd_gpio, gpioa);
+	struct vprbrd_gpio *gpio = gpiochip_get_data(chip);
 	struct vprbrd *vb = gpio->vb;
 	struct vprbrd_gpioa_msg *gamsg = (struct vprbrd_gpioa_msg *)vb->buf;
 
@@ -173,7 +171,7 @@ static void vprbrd_gpioa_set(struct gpio_chip *chip,
 		mutex_unlock(&vb->lock);
 
 		if (ret != sizeof(struct vprbrd_gpioa_msg))
-			dev_err(chip->dev, "usb error setting pin value\n");
+			dev_err(chip->parent, "usb error setting pin value\n");
 	}
 }
 
@@ -181,8 +179,7 @@ static int vprbrd_gpioa_direction_input(struct gpio_chip *chip,
 			unsigned offset)
 {
 	int ret;
-	struct vprbrd_gpio *gpio =
-			container_of(chip, struct vprbrd_gpio, gpioa);
+	struct vprbrd_gpio *gpio = gpiochip_get_data(chip);
 	struct vprbrd *vb = gpio->vb;
 	struct vprbrd_gpioa_msg *gamsg = (struct vprbrd_gpioa_msg *)vb->buf;
 
@@ -219,8 +216,7 @@ static int vprbrd_gpioa_direction_output(struct gpio_chip *chip,
 			unsigned offset, int value)
 {
 	int ret;
-	struct vprbrd_gpio *gpio =
-			container_of(chip, struct vprbrd_gpio, gpioa);
+	struct vprbrd_gpio *gpio = gpiochip_get_data(chip);
 	struct vprbrd *vb = gpio->vb;
 	struct vprbrd_gpioa_msg *gamsg = (struct vprbrd_gpioa_msg *)vb->buf;
 
@@ -287,8 +283,7 @@ static int vprbrd_gpiob_get(struct gpio_chip *chip,
 {
 	int ret;
 	u16 val;
-	struct vprbrd_gpio *gpio =
-			container_of(chip, struct vprbrd_gpio, gpiob);
+	struct vprbrd_gpio *gpio = gpiochip_get_data(chip);
 	struct vprbrd *vb = gpio->vb;
 	struct vprbrd_gpiob_msg *gbmsg = (struct vprbrd_gpiob_msg *)vb->buf;
 
@@ -319,8 +314,7 @@ static void vprbrd_gpiob_set(struct gpio_chip *chip,
 		unsigned offset, int value)
 {
 	int ret;
-	struct vprbrd_gpio *gpio =
-			container_of(chip, struct vprbrd_gpio, gpiob);
+	struct vprbrd_gpio *gpio = gpiochip_get_data(chip);
 	struct vprbrd *vb = gpio->vb;
 	struct vprbrd_gpiob_msg *gbmsg = (struct vprbrd_gpiob_msg *)vb->buf;
 
@@ -345,7 +339,7 @@ static void vprbrd_gpiob_set(struct gpio_chip *chip,
 		mutex_unlock(&vb->lock);
 
 		if (ret != sizeof(struct vprbrd_gpiob_msg))
-			dev_err(chip->dev, "usb error setting pin value\n");
+			dev_err(chip->parent, "usb error setting pin value\n");
 	}
 }
 
@@ -353,8 +347,7 @@ static int vprbrd_gpiob_direction_input(struct gpio_chip *chip,
 			unsigned offset)
 {
 	int ret;
-	struct vprbrd_gpio *gpio =
-			container_of(chip, struct vprbrd_gpio, gpiob);
+	struct vprbrd_gpio *gpio = gpiochip_get_data(chip);
 	struct vprbrd *vb = gpio->vb;
 
 	gpio->gpiob_out &= ~(1 << offset);
@@ -366,7 +359,7 @@ static int vprbrd_gpiob_direction_input(struct gpio_chip *chip,
 	mutex_unlock(&vb->lock);
 
 	if (ret)
-		dev_err(chip->dev, "usb error setting pin to input\n");
+		dev_err(chip->parent, "usb error setting pin to input\n");
 
 	return ret;
 }
@@ -375,8 +368,7 @@ static int vprbrd_gpiob_direction_output(struct gpio_chip *chip,
 			unsigned offset, int value)
 {
 	int ret;
-	struct vprbrd_gpio *gpio =
-			container_of(chip, struct vprbrd_gpio, gpiob);
+	struct vprbrd_gpio *gpio = gpiochip_get_data(chip);
 	struct vprbrd *vb = gpio->vb;
 
 	gpio->gpiob_out |= (1 << offset);
@@ -385,7 +377,7 @@ static int vprbrd_gpiob_direction_output(struct gpio_chip *chip,
 
 	ret = vprbrd_gpiob_setdir(vb, offset, 1);
 	if (ret)
-		dev_err(chip->dev, "usb error setting pin to output\n");
+		dev_err(chip->parent, "usb error setting pin to output\n");
 
 	mutex_unlock(&vb->lock);
 
@@ -409,7 +401,7 @@ static int vprbrd_gpio_probe(struct platform_device *pdev)
 	vb_gpio->vb = vb;
 	/* registering gpio a */
 	vb_gpio->gpioa.label = "viperboard gpio a";
-	vb_gpio->gpioa.dev = &pdev->dev;
+	vb_gpio->gpioa.parent = &pdev->dev;
 	vb_gpio->gpioa.owner = THIS_MODULE;
 	vb_gpio->gpioa.base = -1;
 	vb_gpio->gpioa.ngpio = 16;
@@ -418,15 +410,15 @@ static int vprbrd_gpio_probe(struct platform_device *pdev)
 	vb_gpio->gpioa.get = vprbrd_gpioa_get;
 	vb_gpio->gpioa.direction_input = vprbrd_gpioa_direction_input;
 	vb_gpio->gpioa.direction_output = vprbrd_gpioa_direction_output;
-	ret = gpiochip_add(&vb_gpio->gpioa);
+	ret = gpiochip_add_data(&vb_gpio->gpioa, vb_gpio);
 	if (ret < 0) {
-		dev_err(vb_gpio->gpioa.dev, "could not add gpio a");
+		dev_err(vb_gpio->gpioa.parent, "could not add gpio a");
 		goto err_gpioa;
 	}
 
 	/* registering gpio b */
 	vb_gpio->gpiob.label = "viperboard gpio b";
-	vb_gpio->gpiob.dev = &pdev->dev;
+	vb_gpio->gpiob.parent = &pdev->dev;
 	vb_gpio->gpiob.owner = THIS_MODULE;
 	vb_gpio->gpiob.base = -1;
 	vb_gpio->gpiob.ngpio = 16;
@@ -435,9 +427,9 @@ static int vprbrd_gpio_probe(struct platform_device *pdev)
 	vb_gpio->gpiob.get = vprbrd_gpiob_get;
 	vb_gpio->gpiob.direction_input = vprbrd_gpiob_direction_input;
 	vb_gpio->gpiob.direction_output = vprbrd_gpiob_direction_output;
-	ret = gpiochip_add(&vb_gpio->gpiob);
+	ret = gpiochip_add_data(&vb_gpio->gpiob, vb_gpio);
 	if (ret < 0) {
-		dev_err(vb_gpio->gpiob.dev, "could not add gpio b");
+		dev_err(vb_gpio->gpiob.parent, "could not add gpio b");
 		goto err_gpiob;
 	}