diff options
| author | Christian Marangi <ansuelsmth@gmail.com> | 2023-05-29 18:32:40 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2023-05-31 09:42:09 +0100 |
| commit | 0316cc5629d15880dd3f097d221c55ca648bcd61 (patch) | |
| tree | 611fad046fcb7b43d5dbaec106bd478a98e01600 /drivers/leds | |
| parent | 33ec0b53befff2c0a7f3aa19ff08556d60585d6b (diff) | |
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@lunn.ch>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/leds')
| -rw-r--r-- | drivers/leds/trigger/ledtrig-netdev.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/leds/trigger/ledtrig-netdev.c b/drivers/leds/trigger/ledtrig-netdev.c index 0f3c2ace408d..e8bb9d0f85c0 100644 --- a/drivers/leds/trigger/ledtrig-netdev.c +++ b/drivers/leds/trigger/ledtrig-netdev.c @@ -454,6 +454,8 @@ 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); @@ -475,6 +477,21 @@ static int netdev_trig_activate(struct led_classdev *led_cdev) atomic_set(&trigger_data->interval, msecs_to_jiffies(NETDEV_LED_DEFAULT_INTERVAL)); 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); |