Re: [PATCH v6 4/5] power: supply: power-supply-leds: Add charging_orange_full_green trigger for RGB LED

[Sebastian Reichel]

Hi,

On Tue, Apr 16, 2024 at 01:39:08PM +0800, Kate Hsuan wrote:
> Add a charging_orange_full_green LED trigger and the trigger is based on
> led_mc_trigger_event() which can set an RGB LED when the trigger is
> triggered. The LED will show orange when the battery status is charging.
> The LED will show green when the battery status is full.
> 
> Link: https://lore.kernel.org/linux-leds/f40a0b1a-ceac-e269-c2dd-0158c5b4a1ad@xxxxxxxxx/
> 
> Signed-off-by: Kate Hsuan <hpa@xxxxxxxxxx>
> ---

Acked-by: Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxx>

-- Sebastian

>  drivers/power/supply/power_supply_leds.c | 26 ++++++++++++++++++++++++
>  include/linux/power_supply.h             |  2 ++
>  2 files changed, 28 insertions(+)
> 
> diff --git a/drivers/power/supply/power_supply_leds.c b/drivers/power/supply/power_supply_leds.c
> index c7db29d5fcb8..8dd99199c65b 100644
> --- a/drivers/power/supply/power_supply_leds.c
> +++ b/drivers/power/supply/power_supply_leds.c
> @@ -22,6 +22,9 @@
>  static void power_supply_update_bat_leds(struct power_supply *psy)
>  {
>  	union power_supply_propval status;
> +	unsigned int intensity_green[3] = {255, 0, 0};
> +	unsigned int intensity_orange[3] = {128, 0, 255};
> +	unsigned int intensity_red[3] = {0, 0, 255};
>  
>  	if (power_supply_get_property(psy, POWER_SUPPLY_PROP_STATUS, &status))
>  		return;
> @@ -36,12 +39,20 @@ static void power_supply_update_bat_leds(struct power_supply *psy)
>  		/* Going from blink to LED on requires a LED_OFF event to stop blink */
>  		led_trigger_event(psy->charging_blink_full_solid_trig, LED_OFF);
>  		led_trigger_event(psy->charging_blink_full_solid_trig, LED_FULL);
> +		led_mc_trigger_event(psy->charging_orange_full_green_trig,
> +				     intensity_green,
> +				     ARRAY_SIZE(intensity_green),
> +				     LED_FULL);
>  		break;
>  	case POWER_SUPPLY_STATUS_CHARGING:
>  		led_trigger_event(psy->charging_full_trig, LED_FULL);
>  		led_trigger_event(psy->charging_trig, LED_FULL);
>  		led_trigger_event(psy->full_trig, LED_OFF);
>  		led_trigger_blink(psy->charging_blink_full_solid_trig, 0, 0);
> +		led_mc_trigger_event(psy->charging_orange_full_green_trig,
> +				     intensity_orange,
> +				     ARRAY_SIZE(intensity_orange),
> +				     LED_FULL);
>  		break;
>  	default:
>  		led_trigger_event(psy->charging_full_trig, LED_OFF);
> @@ -49,6 +60,10 @@ static void power_supply_update_bat_leds(struct power_supply *psy)
>  		led_trigger_event(psy->full_trig, LED_OFF);
>  		led_trigger_event(psy->charging_blink_full_solid_trig,
>  			LED_OFF);
> +		led_mc_trigger_event(psy->charging_orange_full_green_trig,
> +				     intensity_red,
> +				     ARRAY_SIZE(intensity_red),
> +				     LED_OFF);
>  		break;
>  	}
>  }
> @@ -74,6 +89,11 @@ static int power_supply_create_bat_triggers(struct power_supply *psy)
>  	if (!psy->charging_blink_full_solid_trig_name)
>  		goto charging_blink_full_solid_failed;
>  
> +	psy->charging_orange_full_green_trig_name = kasprintf(GFP_KERNEL,
> +		"%s-charging-orange-full-green", psy->desc->name);
> +	if (!psy->charging_orange_full_green_trig_name)
> +		goto charging_red_full_green_failed;
> +
>  	led_trigger_register_simple(psy->charging_full_trig_name,
>  				    &psy->charging_full_trig);
>  	led_trigger_register_simple(psy->charging_trig_name,
> @@ -82,9 +102,13 @@ static int power_supply_create_bat_triggers(struct power_supply *psy)
>  				    &psy->full_trig);
>  	led_trigger_register_simple(psy->charging_blink_full_solid_trig_name,
>  				    &psy->charging_blink_full_solid_trig);
> +	led_trigger_register_simple(psy->charging_orange_full_green_trig_name,
> +				    &psy->charging_orange_full_green_trig);
>  
>  	return 0;
>  
> +charging_red_full_green_failed:
> +	kfree(psy->charging_blink_full_solid_trig_name);
>  charging_blink_full_solid_failed:
>  	kfree(psy->full_trig_name);
>  full_failed:
> @@ -101,10 +125,12 @@ static void power_supply_remove_bat_triggers(struct power_supply *psy)
>  	led_trigger_unregister_simple(psy->charging_trig);
>  	led_trigger_unregister_simple(psy->full_trig);
>  	led_trigger_unregister_simple(psy->charging_blink_full_solid_trig);
> +	led_trigger_unregister_simple(psy->charging_orange_full_green_trig);
>  	kfree(psy->charging_blink_full_solid_trig_name);
>  	kfree(psy->full_trig_name);
>  	kfree(psy->charging_trig_name);
>  	kfree(psy->charging_full_trig_name);
> +	kfree(psy->charging_orange_full_green_trig_name);
>  }
>  
>  /* Generated power specific LEDs triggers. */
> diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h
> index c0992a77feea..9b6898085224 100644
> --- a/include/linux/power_supply.h
> +++ b/include/linux/power_supply.h
> @@ -318,6 +318,8 @@ struct power_supply {
>  	char *online_trig_name;
>  	struct led_trigger *charging_blink_full_solid_trig;
>  	char *charging_blink_full_solid_trig_name;
> +	struct led_trigger *charging_orange_full_green_trig;
> +	char *charging_orange_full_green_trig_name;
>  #endif
>  };
>  
> -- 
> 2.44.0
> 
>

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