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Message-Id: <20230529163243.9555-11-ansuelsmth@gmail.com> Date: Mon, 29 May 2023 18:32:40 +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 v4 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 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); -- 2.39.2
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