diff mbox series

[v1,2/4] gpiolib: Move of_node operations to gpiolib-of and correct fwnode use

Message ID 20210302153451.50593-2-andriy.shevchenko@linux.intel.com
State Superseded
Headers show
Series [v1,1/4] gpiolib: Unify the checks on fwnode type | expand

Commit Message

Andy Shevchenko March 2, 2021, 3:34 p.m. UTC 
The initial value of the OF node based on presence of parent, but
at the same time this operation somehow appeared separately from others
that handle the OF case. On the other hand there is no need to assign
dev->fwnode in the OF case if code properly retrieves fwnode, i.e.
via dev_fwnode() helper.

Amend gpiolib.c and gpiolib-of.c code in order to group OF operations.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/gpio/gpiolib-of.c | 6 ++++--
 drivers/gpio/gpiolib.c    | 9 ++++-----
 2 files changed, 8 insertions(+), 7 deletions(-)

Comments

Linus Walleij March 3, 2021, 9:15 a.m. UTC | #1 
On Tue, Mar 2, 2021 at 4:35 PM Andy Shevchenko
<andriy.shevchenko@linux.intel.com> wrote:

> The initial value of the OF node based on presence of parent, but
> at the same time this operation somehow appeared separately from others
> that handle the OF case. On the other hand there is no need to assign
> dev->fwnode in the OF case if code properly retrieves fwnode, i.e.
> via dev_fwnode() helper.
>
> Amend gpiolib.c and gpiolib-of.c code in order to group OF operations.
>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

I parsed it in my head a few times and it looks like it will
end up working the same, so:
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>

Yours,
Linus Walleij
diff mbox series

Patch

diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c
index baf0153b7bca..bbcc7c073f63 100644
--- a/drivers/gpio/gpiolib-of.c
+++ b/drivers/gpio/gpiolib-of.c
@@ -1042,11 +1042,13 @@  void of_gpiochip_remove(struct gpio_chip *chip)
 
 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 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;
-	if (gdev->dev.of_node)
-		gdev->dev.fwnode = of_fwnode_handle(gdev->dev.of_node);
 }
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 484ac92903ab..4af8a8c1316e 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -585,12 +585,9 @@  int gpiochip_add_data_with_key(struct gpio_chip *gc, void *data,
 	if (!gdev)
 		return -ENOMEM;
 	gdev->dev.bus = &gpio_bus_type;
+	gdev->dev.parent = gc->parent;
 	gdev->chip = gc;
 	gc->gpiodev = gdev;
-	if (gc->parent) {
-		gdev->dev.parent = gc->parent;
-		gdev->dev.of_node = gc->parent->of_node;
-	}
 
 	of_gpio_dev_init(gc, gdev);
 
@@ -4212,11 +4209,13 @@  EXPORT_SYMBOL_GPL(gpiod_put_array);
 
 static int gpio_bus_match(struct device *dev, struct device_driver *drv)
 {
+	struct fwnode_handle *fwnode = dev_fwnode(dev);
+
 	/*
 	 * Only match if the fwnode doesn't already have a proper struct device
 	 * created for it.
 	 */
-	if (dev->fwnode && dev->fwnode->dev != dev)
+	if (fwnode && fwnode->dev != dev)
 		return 0;
 	return 1;
 }