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Message-Id: <20221228092045.80425-3-andriy.shevchenko@linux.intel.com>
Date: Wed, 28 Dec 2022 11:20:44 +0200
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
Dmitry Torokhov <dmitry.torokhov@...il.com>,
Bartosz Golaszewski <bartosz.golaszewski@...aro.org>,
Linus Walleij <linus.walleij@...aro.org>,
linux-gpio@...r.kernel.org, linux-acpi@...r.kernel.org,
linux-kernel@...r.kernel.org
Cc: Mika Westerberg <mika.westerberg@...ux.intel.com>,
Bartosz Golaszewski <brgl@...ev.pl>,
Thierry Reding <treding@...dia.com>
Subject: [PATCH v4 2/3] gpiolib: Get rid of not used of_node member
All new drivers should use fwnode and / or parent to provide the
necessary information to the GPIO library.
Cc: Thierry Reding <treding@...dia.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
drivers/gpio/gpiolib-acpi.c | 10 ----------
drivers/gpio/gpiolib-acpi.h | 4 ----
drivers/gpio/gpiolib-of.c | 25 +++++--------------------
drivers/gpio/gpiolib-of.h | 5 -----
drivers/gpio/gpiolib.c | 11 +++--------
include/linux/gpio/driver.h | 7 -------
6 files changed, 8 insertions(+), 54 deletions(-)
diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
index bed0380c5136..466622a8fb36 100644
--- a/drivers/gpio/gpiolib-acpi.c
+++ b/drivers/gpio/gpiolib-acpi.c
@@ -1387,16 +1387,6 @@ void acpi_gpiochip_remove(struct gpio_chip *chip)
kfree(acpi_gpio);
}
-void acpi_gpio_dev_init(struct gpio_chip *gc, struct gpio_device *gdev)
-{
- /* Set default fwnode to parent's one if present */
- if (gc->parent)
- ACPI_COMPANION_SET(&gdev->dev, ACPI_COMPANION(gc->parent));
-
- if (gc->fwnode)
- device_set_node(&gdev->dev, gc->fwnode);
-}
-
static int acpi_gpio_package_count(const union acpi_object *obj)
{
const union acpi_object *element = obj->package.elements;
diff --git a/drivers/gpio/gpiolib-acpi.h b/drivers/gpio/gpiolib-acpi.h
index 9475f99a9694..5fa315b3c912 100644
--- a/drivers/gpio/gpiolib-acpi.h
+++ b/drivers/gpio/gpiolib-acpi.h
@@ -26,8 +26,6 @@ struct gpio_device;
void acpi_gpiochip_add(struct gpio_chip *chip);
void acpi_gpiochip_remove(struct gpio_chip *chip);
-void acpi_gpio_dev_init(struct gpio_chip *gc, struct gpio_device *gdev);
-
void acpi_gpiochip_request_interrupts(struct gpio_chip *chip);
void acpi_gpiochip_free_interrupts(struct gpio_chip *chip);
@@ -42,8 +40,6 @@ int acpi_gpio_count(struct device *dev, const char *con_id);
static inline void acpi_gpiochip_add(struct gpio_chip *chip) { }
static inline void acpi_gpiochip_remove(struct gpio_chip *chip) { }
-static inline void acpi_gpio_dev_init(struct gpio_chip *gc, struct gpio_device *gdev) { }
-
static inline void
acpi_gpiochip_request_interrupts(struct gpio_chip *chip) { }
diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c
index 4fff7258ee41..a6f9788d6db0 100644
--- a/drivers/gpio/gpiolib-of.c
+++ b/drivers/gpio/gpiolib-of.c
@@ -668,7 +668,7 @@ static struct gpio_desc *of_parse_own_gpio(struct device_node *np,
u32 tmp;
int ret;
- chip_np = chip->of_node;
+ chip_np = dev_of_node(&chip->gpiodev->dev);
if (!chip_np)
return ERR_PTR(-EINVAL);
@@ -760,7 +760,7 @@ static int of_gpiochip_scan_gpios(struct gpio_chip *chip)
struct device_node *np;
int ret;
- for_each_available_child_of_node(chip->of_node, np) {
+ for_each_available_child_of_node(dev_of_node(&chip->gpiodev->dev), np) {
if (!of_property_read_bool(np, "gpio-hog"))
continue;
@@ -970,14 +970,15 @@ EXPORT_SYMBOL_GPL(of_mm_gpiochip_remove);
#ifdef CONFIG_PINCTRL
static int of_gpiochip_add_pin_range(struct gpio_chip *chip)
{
- struct device_node *np = chip->of_node;
struct of_phandle_args pinspec;
struct pinctrl_dev *pctldev;
+ struct device_node *np;
int index = 0, ret;
const char *name;
static const char group_names_propname[] = "gpio-ranges-group-names";
struct property *group_names;
+ np = dev_of_node(&chip->gpiodev->dev);
if (!np)
return 0;
@@ -1063,7 +1064,7 @@ int of_gpiochip_add(struct gpio_chip *chip)
struct device_node *np;
int ret;
- np = to_of_node(dev_fwnode(&chip->gpiodev->dev));
+ np = dev_of_node(&chip->gpiodev->dev);
if (!np)
return 0;
@@ -1092,19 +1093,3 @@ void of_gpiochip_remove(struct gpio_chip *chip)
{
fwnode_handle_put(chip->fwnode);
}
-
-void of_gpio_dev_init(struct gpio_chip *gc, struct gpio_device *gdev)
-{
- /* Set default OF node to parent's one if present */
- if (gc->parent)
- gdev->dev.of_node = gc->parent->of_node;
-
- if (gc->fwnode)
- gc->of_node = to_of_node(gc->fwnode);
-
- /* If the gpiochip has an assigned OF node this takes precedence */
- if (gc->of_node)
- gdev->dev.of_node = gc->of_node;
- else
- gc->of_node = gdev->dev.of_node;
-}
diff --git a/drivers/gpio/gpiolib-of.h b/drivers/gpio/gpiolib-of.h
index a6c593e6766c..e5bb065d82ef 100644
--- a/drivers/gpio/gpiolib-of.h
+++ b/drivers/gpio/gpiolib-of.h
@@ -23,7 +23,6 @@ struct gpio_desc *of_find_gpio(struct device_node *np,
int of_gpiochip_add(struct gpio_chip *gc);
void of_gpiochip_remove(struct gpio_chip *gc);
int of_gpio_get_count(struct device *dev, const char *con_id);
-void of_gpio_dev_init(struct gpio_chip *gc, struct gpio_device *gdev);
#else
static inline struct gpio_desc *of_find_gpio(struct device_node *np,
const char *con_id,
@@ -38,10 +37,6 @@ static inline int of_gpio_get_count(struct device *dev, const char *con_id)
{
return 0;
}
-static inline void of_gpio_dev_init(struct gpio_chip *gc,
- struct gpio_device *gdev)
-{
-}
#endif /* CONFIG_OF_GPIO */
extern struct notifier_block gpio_of_notifier;
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index fdb0dc464218..e72c539fbec5 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -659,10 +659,12 @@ int gpiochip_add_data_with_key(struct gpio_chip *gc, void *data,
int base = 0;
int ret = 0;
+ /* If the calling driver did not initialize firmware node, do it here */
if (gc->fwnode)
fwnode = gc->fwnode;
else if (gc->parent)
fwnode = dev_fwnode(gc->parent);
+ gc->fwnode = fwnode;
/*
* First: allocate and populate the internal stat container, and
@@ -676,14 +678,7 @@ int gpiochip_add_data_with_key(struct gpio_chip *gc, void *data,
gdev->chip = gc;
gc->gpiodev = gdev;
- of_gpio_dev_init(gc, gdev);
- acpi_gpio_dev_init(gc, gdev);
-
- /*
- * Assign fwnode depending on the result of the previous calls,
- * if none of them succeed, assign it to the parent's one.
- */
- gc->fwnode = gdev->dev.fwnode = dev_fwnode(&gdev->dev) ?: fwnode;
+ device_set_node(&gdev->dev, gc->fwnode);
gdev->id = ida_alloc(&gpio_ida, GFP_KERNEL);
if (gdev->id < 0) {
diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index 44783fc16125..2316cb7fa667 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -503,13 +503,6 @@ struct gpio_chip {
* the device tree automatically may have an OF translation
*/
- /**
- * @of_node:
- *
- * Pointer to a device tree node representing this GPIO controller.
- */
- struct device_node *of_node;
-
/**
* @of_gpio_n_cells:
*
--
2.35.1
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