Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
power_supply: Add new LED trigger charging-blink-solid-full
Add new trigger to power_supply LEDs. It will blink when battery is
charging, and stay solid when battery is charged. It's usefull to
indicate battery state when there's only one LED available.
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
authored by Vasily Khoruzhick and committed by Anton Vorontsov 6501f728 0b9536c9
+19
drivers/power/power_supply_leds.c
+19
drivers/power/power_supply_leds.c
···
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static void power_supply_update_bat_leds(struct power_supply *psy)
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{
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union power_supply_propval status;
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+
unsigned long delay_on = 0;
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+
unsigned long delay_off = 0;
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if (psy->get_property(psy, POWER_SUPPLY_PROP_STATUS, &status))
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return;
···
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led_trigger_event(psy->charging_full_trig, LED_FULL);
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led_trigger_event(psy->charging_trig, LED_OFF);
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led_trigger_event(psy->full_trig, LED_FULL);
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+
led_trigger_event(psy->charging_blink_full_solid_trig,
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LED_FULL);
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break;
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case POWER_SUPPLY_STATUS_CHARGING:
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led_trigger_event(psy->charging_full_trig, LED_FULL);
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led_trigger_event(psy->charging_trig, LED_FULL);
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led_trigger_event(psy->full_trig, LED_OFF);
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led_trigger_blink(psy->charging_blink_full_solid_trig,
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&delay_on, &delay_off);
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break;
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default:
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led_trigger_event(psy->charging_full_trig, LED_OFF);
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led_trigger_event(psy->charging_trig, LED_OFF);
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led_trigger_event(psy->full_trig, LED_OFF);
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led_trigger_event(psy->charging_blink_full_solid_trig,
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LED_OFF);
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break;
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}
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}
···
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if (!psy->full_trig_name)
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goto full_failed;
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+
psy->charging_blink_full_solid_trig_name = kasprintf(GFP_KERNEL,
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"%s-charging-blink-full-solid", psy->name);
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if (!psy->charging_blink_full_solid_trig_name)
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goto charging_blink_full_solid_failed;
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+
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led_trigger_register_simple(psy->charging_full_trig_name,
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&psy->charging_full_trig);
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led_trigger_register_simple(psy->charging_trig_name,
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&psy->charging_trig);
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led_trigger_register_simple(psy->full_trig_name,
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&psy->full_trig);
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led_trigger_register_simple(psy->charging_blink_full_solid_trig_name,
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&psy->charging_blink_full_solid_trig);
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goto success;
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+
charging_blink_full_solid_failed:
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kfree(psy->full_trig_name);
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full_failed:
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kfree(psy->charging_trig_name);
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charging_failed:
···
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led_trigger_unregister_simple(psy->charging_full_trig);
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led_trigger_unregister_simple(psy->charging_trig);
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led_trigger_unregister_simple(psy->full_trig);
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led_trigger_unregister_simple(psy->charging_blink_full_solid_trig);
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kfree(psy->charging_blink_full_solid_trig_name);
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kfree(psy->full_trig_name);
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kfree(psy->charging_trig_name);
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kfree(psy->charging_full_trig_name);