gpio: change member .dev to .parent
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 <hskinnemoen@gmail.com>
Cc: Rafał Miłecki <zajec5@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: Alek Du <alek.du@intel.com>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Acked-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
index 16a7b68..e4620e1 100644
--- a/drivers/gpio/gpiolib-acpi.c
+++ b/drivers/gpio/gpiolib-acpi.c
@@ -51,10 +51,10 @@
static int acpi_gpiochip_find(struct gpio_chip *gc, void *data)
{
- if (!gc->dev)
+ if (!gc->parent)
return false;
- return ACPI_HANDLE(gc->dev) == data;
+ return ACPI_HANDLE(gc->parent) == data;
}
#ifdef CONFIG_PINCTRL
@@ -184,7 +184,7 @@
if (agpio->connection_type != ACPI_RESOURCE_GPIO_TYPE_INT)
return AE_OK;
- handle = ACPI_HANDLE(chip->dev);
+ handle = ACPI_HANDLE(chip->parent);
pin = agpio->pin_table[0];
if (pin <= 255) {
@@ -208,7 +208,7 @@
desc = gpiochip_request_own_desc(chip, pin, "ACPI:Event");
if (IS_ERR(desc)) {
- dev_err(chip->dev, "Failed to request GPIO\n");
+ dev_err(chip->parent, "Failed to request GPIO\n");
return AE_ERROR;
}
@@ -216,13 +216,13 @@
ret = gpiochip_lock_as_irq(chip, pin);
if (ret) {
- dev_err(chip->dev, "Failed to lock GPIO as interrupt\n");
+ dev_err(chip->parent, "Failed to lock GPIO as interrupt\n");
goto fail_free_desc;
}
irq = gpiod_to_irq(desc);
if (irq < 0) {
- dev_err(chip->dev, "Failed to translate GPIO to IRQ\n");
+ dev_err(chip->parent, "Failed to translate GPIO to IRQ\n");
goto fail_unlock_irq;
}
@@ -259,7 +259,8 @@
ret = request_threaded_irq(event->irq, NULL, handler, irqflags,
"ACPI:Event", event);
if (ret) {
- dev_err(chip->dev, "Failed to setup interrupt handler for %d\n",
+ dev_err(chip->parent,
+ "Failed to setup interrupt handler for %d\n",
event->irq);
goto fail_free_event;
}
@@ -293,10 +294,10 @@
acpi_handle handle;
acpi_status status;
- if (!chip->dev || !chip->to_irq)
+ if (!chip->parent || !chip->to_irq)
return;
- handle = ACPI_HANDLE(chip->dev);
+ handle = ACPI_HANDLE(chip->parent);
if (!handle)
return;
@@ -323,10 +324,10 @@
acpi_handle handle;
acpi_status status;
- if (!chip->dev || !chip->to_irq)
+ if (!chip->parent || !chip->to_irq)
return;
- handle = ACPI_HANDLE(chip->dev);
+ handle = ACPI_HANDLE(chip->parent);
if (!handle)
return;
@@ -748,7 +749,7 @@
static void acpi_gpiochip_request_regions(struct acpi_gpio_chip *achip)
{
struct gpio_chip *chip = achip->chip;
- acpi_handle handle = ACPI_HANDLE(chip->dev);
+ acpi_handle handle = ACPI_HANDLE(chip->parent);
acpi_status status;
INIT_LIST_HEAD(&achip->conns);
@@ -757,20 +758,22 @@
acpi_gpio_adr_space_handler,
NULL, achip);
if (ACPI_FAILURE(status))
- dev_err(chip->dev, "Failed to install GPIO OpRegion handler\n");
+ dev_err(chip->parent,
+ "Failed to install GPIO OpRegion handler\n");
}
static void acpi_gpiochip_free_regions(struct acpi_gpio_chip *achip)
{
struct gpio_chip *chip = achip->chip;
- acpi_handle handle = ACPI_HANDLE(chip->dev);
+ acpi_handle handle = ACPI_HANDLE(chip->parent);
struct acpi_gpio_connection *conn, *tmp;
acpi_status status;
status = acpi_remove_address_space_handler(handle, ACPI_ADR_SPACE_GPIO,
acpi_gpio_adr_space_handler);
if (ACPI_FAILURE(status)) {
- dev_err(chip->dev, "Failed to remove GPIO OpRegion handler\n");
+ dev_err(chip->parent,
+ "Failed to remove GPIO OpRegion handler\n");
return;
}
@@ -787,16 +790,16 @@
acpi_handle handle;
acpi_status status;
- if (!chip || !chip->dev)
+ if (!chip || !chip->parent)
return;
- handle = ACPI_HANDLE(chip->dev);
+ handle = ACPI_HANDLE(chip->parent);
if (!handle)
return;
acpi_gpio = kzalloc(sizeof(*acpi_gpio), GFP_KERNEL);
if (!acpi_gpio) {
- dev_err(chip->dev,
+ dev_err(chip->parent,
"Failed to allocate memory for ACPI GPIO chip\n");
return;
}
@@ -806,7 +809,7 @@
status = acpi_attach_data(handle, acpi_gpio_chip_dh, acpi_gpio);
if (ACPI_FAILURE(status)) {
- dev_err(chip->dev, "Failed to attach ACPI GPIO chip\n");
+ dev_err(chip->parent, "Failed to attach ACPI GPIO chip\n");
kfree(acpi_gpio);
return;
}
@@ -820,16 +823,16 @@
acpi_handle handle;
acpi_status status;
- if (!chip || !chip->dev)
+ if (!chip || !chip->parent)
return;
- handle = ACPI_HANDLE(chip->dev);
+ handle = ACPI_HANDLE(chip->parent);
if (!handle)
return;
status = acpi_get_data(handle, acpi_gpio_chip_dh, (void **)&acpi_gpio);
if (ACPI_FAILURE(status)) {
- dev_warn(chip->dev, "Failed to retrieve ACPI GPIO chip\n");
+ dev_warn(chip->parent, "Failed to retrieve ACPI GPIO chip\n");
return;
}