[PATCH v5 05/12] leds: turris-omnia: Implement offloaded() trigger callback and declare hw_control_trigger

"omnia-mcu" is a private hardware control trigger which always stays in
hardware control mode. Implement offloaded() callback with its return
value to be always true to reflect this.

Meanwhile, declare it as a hardware control trigger as it's forgotten
before.

Acked-by: Ike Panhc <[email protected]>
Signed-off-by: Rong Zhang <[email protected]>
---
I am aware of a pre-existing bug on probe, i.e., non-idempotent trigger
registration. Since the driver is very platform-specific and the
relevant platforms never have more than one such device, the bug is
never triggered on real devices. Therefore, fixing it is far beyond the
scope of the series.
---
 drivers/leds/leds-turris-omnia.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/leds/leds-turris-omnia.c b/drivers/leds/leds-turris-omnia.c
index ed6a47bbb44f..32d40d176d3f 100644
--- a/drivers/leds/leds-turris-omnia.c
+++ b/drivers/leds/leds-turris-omnia.c
@@ -195,10 +195,16 @@ static void omnia_hwtrig_deactivate(struct led_classdev *cdev)
 			err);
 }
 
+static bool omnia_hwtrig_offloaded(struct led_classdev *cdev)
+{
+	return true;
+}
+
 static struct led_trigger omnia_hw_trigger = {
 	.name		= "omnia-mcu",
 	.activate	= omnia_hwtrig_activate,
 	.deactivate	= omnia_hwtrig_deactivate,
+	.offloaded	= omnia_hwtrig_offloaded,
 	.trigger_type	= &omnia_hw_trigger_type,
 };
 
@@ -251,6 +257,7 @@ static int omnia_led_register(struct i2c_client *client, struct omnia_led *led,
 	 * by LED class from the linux,default-trigger property.
 	 */
 	cdev->default_trigger = omnia_hw_trigger.name;
+	cdev->hw_control_trigger = omnia_hw_trigger.name;
 
 	/* Put the LED into software mode */
 	ret = omnia_cmd_write_u8(client, OMNIA_CMD_LED_MODE, OMNIA_CMD_LED_MODE_LED(led->reg) |

-- 
2.55.0