From 58383c78425e4ee1c077253cf297b641c861c02e Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Wed, 4 Nov 2015 09:56:26 +0100 Subject: gpio: change member .dev to .parent MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The name .dev in a struct is normally reserved for a struct device that is let us say a superclass to the thing described by the struct. struct gpio_chip stands out by confusingly using a struct device *dev to point to the parent device (such as a platform_device) that represents the hardware. As we want to give gpio_chip:s real devices, this is not working. We need to rename this member to parent. This was done by two coccinelle scripts, I guess it is possible to combine them into one, but I don't know such stuff. They look like this: @@ struct gpio_chip *var; @@ -var->dev +var->parent and: @@ struct gpio_chip var; @@ -var.dev +var.parent and: @@ struct bgpio_chip *var; @@ -var->gc.dev +var->gc.parent Plus a few instances of bgpio that I couldn't figure out how to teach Coccinelle to rewrite. This patch hits all over the place, but I *strongly* prefer this solution to any piecemal approaches that just exercise patch mechanics all over the place. It mainly hits drivers/gpio and drivers/pinctrl which is my own backyard anyway. Cc: Haavard Skinnemoen Cc: Rafał Miłecki Cc: Richard Purdie Cc: Mauro Carvalho Chehab Cc: Alek Du Cc: Jaroslav Kysela Cc: Takashi Iwai Acked-by: Dmitry Torokhov Acked-by: Greg Kroah-Hartman Acked-by: Lee Jones Acked-by: Jiri Kosina Acked-by: Hans-Christian Egtvedt Acked-by: Jacek Anaszewski Signed-off-by: Linus Walleij --- drivers/gpio/gpio-xlp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/gpio/gpio-xlp.c') diff --git a/drivers/gpio/gpio-xlp.c b/drivers/gpio/gpio-xlp.c index bc06a2cd2c1d..3f31aac2ba3c 100644 --- a/drivers/gpio/gpio-xlp.c +++ b/drivers/gpio/gpio-xlp.c @@ -373,7 +373,7 @@ static int xlp_gpio_probe(struct platform_device *pdev) gc->owner = THIS_MODULE; gc->label = dev_name(&pdev->dev); gc->base = 0; - gc->dev = &pdev->dev; + gc->parent = &pdev->dev; gc->ngpio = ngpio; gc->of_node = pdev->dev.of_node; gc->direction_output = xlp_gpio_dir_output; -- cgit v1.2.3 From e730a5953af4c54a50fb7712af4dd9468dedcd22 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Mon, 7 Dec 2015 15:22:31 +0100 Subject: gpio: xlp: 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: Kamlakant Patel Signed-off-by: Linus Walleij --- drivers/gpio/gpio-xlp.c | 23 +++++++++-------------- 1 file changed, 9 insertions(+), 14 deletions(-) (limited to 'drivers/gpio/gpio-xlp.c') diff --git a/drivers/gpio/gpio-xlp.c b/drivers/gpio/gpio-xlp.c index 3f31aac2ba3c..aa5813d2deb1 100644 --- a/drivers/gpio/gpio-xlp.c +++ b/drivers/gpio/gpio-xlp.c @@ -100,11 +100,6 @@ struct xlp_gpio_priv { spinlock_t lock; }; -static struct xlp_gpio_priv *gpio_chip_to_xlp_priv(struct gpio_chip *gc) -{ - return container_of(gc, struct xlp_gpio_priv, chip); -} - static int xlp_gpio_get_reg(void __iomem *addr, unsigned gpio) { u32 pos, regset; @@ -133,7 +128,7 @@ static void xlp_gpio_set_reg(void __iomem *addr, unsigned gpio, int state) static void xlp_gpio_irq_disable(struct irq_data *d) { struct gpio_chip *gc = irq_data_get_irq_chip_data(d); - struct xlp_gpio_priv *priv = gpio_chip_to_xlp_priv(gc); + struct xlp_gpio_priv *priv = gpiochip_get_data(gc); unsigned long flags; spin_lock_irqsave(&priv->lock, flags); @@ -145,7 +140,7 @@ static void xlp_gpio_irq_disable(struct irq_data *d) static void xlp_gpio_irq_mask_ack(struct irq_data *d) { struct gpio_chip *gc = irq_data_get_irq_chip_data(d); - struct xlp_gpio_priv *priv = gpio_chip_to_xlp_priv(gc); + struct xlp_gpio_priv *priv = gpiochip_get_data(gc); unsigned long flags; spin_lock_irqsave(&priv->lock, flags); @@ -158,7 +153,7 @@ static void xlp_gpio_irq_mask_ack(struct irq_data *d) static void xlp_gpio_irq_unmask(struct irq_data *d) { struct gpio_chip *gc = irq_data_get_irq_chip_data(d); - struct xlp_gpio_priv *priv = gpio_chip_to_xlp_priv(gc); + struct xlp_gpio_priv *priv = gpiochip_get_data(gc); unsigned long flags; spin_lock_irqsave(&priv->lock, flags); @@ -170,7 +165,7 @@ static void xlp_gpio_irq_unmask(struct irq_data *d) static int xlp_gpio_set_irq_type(struct irq_data *d, unsigned int type) { struct gpio_chip *gc = irq_data_get_irq_chip_data(d); - struct xlp_gpio_priv *priv = gpio_chip_to_xlp_priv(gc); + struct xlp_gpio_priv *priv = gpiochip_get_data(gc); int pol, irq_type; switch (type) { @@ -235,7 +230,7 @@ static void xlp_gpio_generic_handler(struct irq_desc *desc) static int xlp_gpio_dir_output(struct gpio_chip *gc, unsigned gpio, int state) { - struct xlp_gpio_priv *priv = gpio_chip_to_xlp_priv(gc); + struct xlp_gpio_priv *priv = gpiochip_get_data(gc); BUG_ON(gpio >= gc->ngpio); xlp_gpio_set_reg(priv->gpio_out_en, gpio, 0x1); @@ -245,7 +240,7 @@ static int xlp_gpio_dir_output(struct gpio_chip *gc, unsigned gpio, int state) static int xlp_gpio_dir_input(struct gpio_chip *gc, unsigned gpio) { - struct xlp_gpio_priv *priv = gpio_chip_to_xlp_priv(gc); + struct xlp_gpio_priv *priv = gpiochip_get_data(gc); BUG_ON(gpio >= gc->ngpio); xlp_gpio_set_reg(priv->gpio_out_en, gpio, 0x0); @@ -255,7 +250,7 @@ static int xlp_gpio_dir_input(struct gpio_chip *gc, unsigned gpio) static int xlp_gpio_get(struct gpio_chip *gc, unsigned gpio) { - struct xlp_gpio_priv *priv = gpio_chip_to_xlp_priv(gc); + struct xlp_gpio_priv *priv = gpiochip_get_data(gc); BUG_ON(gpio >= gc->ngpio); return xlp_gpio_get_reg(priv->gpio_paddrv, gpio); @@ -263,7 +258,7 @@ static int xlp_gpio_get(struct gpio_chip *gc, unsigned gpio) static void xlp_gpio_set(struct gpio_chip *gc, unsigned gpio, int state) { - struct xlp_gpio_priv *priv = gpio_chip_to_xlp_priv(gc); + struct xlp_gpio_priv *priv = gpiochip_get_data(gc); BUG_ON(gpio >= gc->ngpio); xlp_gpio_set_reg(priv->gpio_paddrv, gpio, state); @@ -388,7 +383,7 @@ static int xlp_gpio_probe(struct platform_device *pdev) return -ENODEV; } - err = gpiochip_add(gc); + err = gpiochip_add_data(gc, priv); if (err < 0) goto out_free_desc; -- cgit v1.2.3