summaryrefslogtreecommitdiff
path: root/drivers/leds
diff options
context:
space:
mode:
authorChristian Marangi <ansuelsmth@gmail.com>2023-05-29 19:32:35 +0300
committerDavid S. Miller <davem@davemloft.net>2023-05-31 11:42:08 +0300
commit4fd1b6d47a7a38e81fdc6f8be2ccd4216b3f93db (patch)
tree2ee0aa50a3f1fc4870ec1b0b69872a05414a51de /drivers/leds
parent28a6a2ef18ad840a390d519840c303b03040961c (diff)
downloadlinux-4fd1b6d47a7a38e81fdc6f8be2ccd4216b3f93db.tar.xz
leds: trigger: netdev: introduce check for possible hw control
Introduce function to check if the requested mode can use hw control in preparation for hw control support. Currently everything is handled in software so can_hw_control will always return false. Add knob with the new value hw_control in trigger_data struct to set hw control possible. Useful for future implementation to implement in set_baseline_state() the required function to set the requested mode using LEDs hw control ops and in other function to reject set if hw control is currently active. Signed-off-by: Christian Marangi <ansuelsmth@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/leds')
-rw-r--r--drivers/leds/trigger/ledtrig-netdev.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/leds/trigger/ledtrig-netdev.c b/drivers/leds/trigger/ledtrig-netdev.c
index c93ac3bc85a6..e1f3cedd5d57 100644
--- a/drivers/leds/trigger/ledtrig-netdev.c
+++ b/drivers/leds/trigger/ledtrig-netdev.c
@@ -51,6 +51,7 @@ struct led_netdev_data {
unsigned long mode;
bool carrier_link_up;
+ bool hw_control;
};
enum led_trigger_netdev_modes {
@@ -91,6 +92,11 @@ static void set_baseline_state(struct led_netdev_data *trigger_data)
}
}
+static bool can_hw_control(struct led_netdev_data *trigger_data)
+{
+ return false;
+}
+
static ssize_t device_name_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
@@ -204,6 +210,8 @@ static ssize_t netdev_led_attr_store(struct device *dev, const char *buf,
else
clear_bit(bit, &trigger_data->mode);
+ trigger_data->hw_control = can_hw_control(trigger_data);
+
set_baseline_state(trigger_data);
return size;