From: Javier Carrasco <javier.carrasco.cruz@gmail.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
"Rafael J. Wysocki" <rafael@kernel.org>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Jonathan Cameron <jic23@kernel.org>,
Rob Herring <robh@kernel.org>,
Daniel Scally <djrscally@gmail.com>,
Heikki Krogerus <heikki.krogerus@linux.intel.com>,
Sakari Ailus <sakari.ailus@linux.intel.com>,
Jean Delvare <jdelvare@suse.com>,
Guenter Roeck <linux@roeck-us.net>, Pavel Machek <pavel@ucw.cz>,
Lee Jones <lee@kernel.org>,
Marcin Wojtas <marcin.s.wojtas@gmail.com>,
Russell King <linux@armlinux.org.uk>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>,
Paolo Abeni <pabeni@redhat.com>,
Andreas Kemnade <andreas@kemnade.info>
Cc: linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-hwmon@vger.kernel.org, linux-leds@vger.kernel.org,
netdev@vger.kernel.org,
Javier Carrasco <javier.carrasco.cruz@gmail.com>,
Jonathan Cameron <Jonathan.Cameron@huawei.com>
Subject: [PATCH v3 2/4] leds: pca995x: use device_for_each_child_node() to access device child nodes
Date: Mon, 05 Aug 2024 16:49:45 +0200 [thread overview]
Message-ID: <20240805-device_for_each_child_node-available-v3-2-48243a4aa5c0@gmail.com> (raw)
In-Reply-To: <20240805-device_for_each_child_node-available-v3-0-48243a4aa5c0@gmail.com>
The iterated nodes are direct children of the device node, and the
`device_for_each_child_node()` macro accounts for child node
availability.
`fwnode_for_each_available_child_node()` is meant to access the child
nodes of an fwnode, and therefore not direct child nodes of the device
node.
Use `device_for_each_child_node()` to indicate device's direct child
nodes.
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
---
drivers/leds/leds-pca995x.c | 15 +++++----------
1 file changed, 5 insertions(+), 10 deletions(-)
diff --git a/drivers/leds/leds-pca995x.c b/drivers/leds/leds-pca995x.c
index 686b77772cce..83bc9669544c 100644
--- a/drivers/leds/leds-pca995x.c
+++ b/drivers/leds/leds-pca995x.c
@@ -120,7 +120,7 @@ static const struct regmap_config pca995x_regmap = {
static int pca995x_probe(struct i2c_client *client)
{
struct fwnode_handle *led_fwnodes[PCA995X_MAX_OUTPUTS] = { 0 };
- struct fwnode_handle *np, *child;
+ struct fwnode_handle *child;
struct device *dev = &client->dev;
const struct pca995x_chipdef *chipdef;
struct pca995x_chip *chip;
@@ -129,8 +129,7 @@ static int pca995x_probe(struct i2c_client *client)
chipdef = device_get_match_data(&client->dev);
- np = dev_fwnode(dev);
- if (!np)
+ if (!dev_fwnode(dev))
return -ENODEV;
chip = devm_kzalloc(dev, sizeof(*chip), GFP_KERNEL);
@@ -144,17 +143,13 @@ static int pca995x_probe(struct i2c_client *client)
i2c_set_clientdata(client, chip);
- fwnode_for_each_available_child_node(np, child) {
+ device_for_each_child_node(dev, child) {
ret = fwnode_property_read_u32(child, "reg", ®);
- if (ret) {
- fwnode_handle_put(child);
+ if (ret)
return ret;
- }
- if (reg < 0 || reg >= PCA995X_MAX_OUTPUTS || led_fwnodes[reg]) {
- fwnode_handle_put(child);
+ if (reg < 0 || reg >= PCA995X_MAX_OUTPUTS || led_fwnodes[reg])
return -EINVAL;
- }
led = &chip->leds[reg];
led_fwnodes[reg] = child;
--
2.43.0
next prev parent reply other threads:[~2024-08-05 14:50 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-05 14:49 [PATCH v3 0/4] use device_for_each_child_node() to access device child nodes Javier Carrasco
2024-08-05 14:49 ` [PATCH v3 1/4] device property: document device_for_each_child_node macro Javier Carrasco
2024-08-05 21:21 ` Sakari Ailus
2024-08-05 14:49 ` Javier Carrasco [this message]
2024-08-05 16:00 ` (subset) [PATCH v3 2/4] leds: pca995x: use device_for_each_child_node() to access device child nodes Lee Jones
2024-08-05 16:01 ` Lee Jones
2024-08-06 20:45 ` Javier Carrasco
2024-08-05 14:49 ` [PATCH v3 3/4] net: mvpp2: use port_count to remove ports Javier Carrasco
2024-08-05 14:49 ` [PATCH v3 4/4] net: mvpp2: use device_for_each_child_node() to access device child nodes Javier Carrasco
2024-08-07 1:10 ` [PATCH v3 0/4] " Jakub Kicinski
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