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Message-Id: <20230527112854.2366-11-ansuelsmth@gmail.com>
Date: Sat, 27 May 2023 13:28:51 +0200
From: Christian Marangi <ansuelsmth@...il.com>
To: Pavel Machek <pavel@....cz>,
Lee Jones <lee@...nel.org>,
Jonathan Corbet <corbet@....net>,
Andrew Lunn <andrew@...n.ch>,
Florian Fainelli <f.fainelli@...il.com>,
Vladimir Oltean <olteanv@...il.com>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
Christian Marangi <ansuelsmth@...il.com>,
linux-leds@...r.kernel.org,
linux-doc@...r.kernel.org,
linux-kernel@...r.kernel.org,
netdev@...r.kernel.org
Subject: [net-next PATCH v3 10/13] leds: trigger: netdev: init mode if hw control already active
On netdev trigger activation, hw control may be already active by
default. If this is the case and a device is actually provided by
hw_control_get_device(), init the already active mode and set the
bool to hw_control bool to true to reflect the already set mode in the
trigger_data.
Co-developed-by: Andrew Lunn <andrew@...n.ch>
Signed-off-by: Andrew Lunn <andrew@...n.ch>
Signed-off-by: Christian Marangi <ansuelsmth@...il.com>
---
drivers/leds/trigger/ledtrig-netdev.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/drivers/leds/trigger/ledtrig-netdev.c b/drivers/leds/trigger/ledtrig-netdev.c
index 5b59441fc415..b0cab2b84ce2 100644
--- a/drivers/leds/trigger/ledtrig-netdev.c
+++ b/drivers/leds/trigger/ledtrig-netdev.c
@@ -452,6 +452,8 @@ static void netdev_trig_work(struct work_struct *work)
static int netdev_trig_activate(struct led_classdev *led_cdev)
{
struct led_netdev_data *trigger_data;
+ unsigned long mode;
+ struct device *dev;
int rc;
trigger_data = kzalloc(sizeof(struct led_netdev_data), GFP_KERNEL);
@@ -473,6 +475,21 @@ static int netdev_trig_activate(struct led_classdev *led_cdev)
atomic_set(&trigger_data->interval, msecs_to_jiffies(50));
trigger_data->last_activity = 0;
+ /* Check if hw control is active by default on the LED.
+ * Init already enabled mode in hw control.
+ */
+ if (supports_hw_control(led_cdev) &&
+ !led_cdev->hw_control_get(led_cdev, &mode)) {
+ dev = led_cdev->hw_control_get_device(led_cdev);
+ if (dev) {
+ const char *name = dev_name(dev);
+
+ set_device_name(trigger_data, name, strlen(name));
+ trigger_data->hw_control = true;
+ trigger_data->mode = mode;
+ }
+ }
+
led_set_trigger_data(led_cdev, trigger_data);
rc = register_netdevice_notifier(&trigger_data->notifier);
--
2.39.2
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