Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 9272d2d1 authored by Vadim Pasternak's avatar Vadim Pasternak Committed by Darren Hart (VMware)
Browse files

platform/mellanox: mlxreg-hotplug: Add hotplug hwmon uevent notification 



Notify user when hotplug device signal is received in order to allow user
to handle such case, if it wishes to take some action on this matter.

Signed-off-by: default avatarVadim Pasternak <vadimp@mellanox.com>
Signed-off-by: default avatarDarren Hart (VMware) <dvhart@infradead.org>
parent 66342d1c

drivers/platform/mellanox/mlxreg-hotplug.c

+17 −9
Original line number Diff line number Diff line
@@ -102,6 +102,9 @@ static int mlxreg_hotplug_device_create(struct mlxreg_hotplug_priv_data *priv, 
{

	struct mlxreg_core_hotplug_platform_data *pdata;



	/* Notify user by sending hwmon uevent. */

	kobject_uevent(&priv->hwmon->kobj, KOBJ_CHANGE);



	/*

	 * Return if adapter number is negative. It could be in case hotplug

	 * event is not associated with hotplug device.
@@ -133,8 +136,13 @@ static int mlxreg_hotplug_device_create(struct mlxreg_hotplug_priv_data *priv, 
	return 0;

}



static void mlxreg_hotplug_device_destroy(struct mlxreg_core_data *data)

static void

mlxreg_hotplug_device_destroy(struct mlxreg_hotplug_priv_data *priv,

			      struct mlxreg_core_data *data)

{

	/* Notify user by sending hwmon uevent. */

	kobject_uevent(&priv->hwmon->kobj, KOBJ_CHANGE);



	if (data->hpdev.client) {

		i2c_unregister_device(data->hpdev.client);

		data->hpdev.client = NULL;
@@ -277,14 +285,14 @@ mlxreg_hotplug_work_helper(struct mlxreg_hotplug_priv_data *priv, 
		data = item->data + bit;

		if (regval & BIT(bit)) {

			if (item->inversed)

				mlxreg_hotplug_device_destroy(data);

				mlxreg_hotplug_device_destroy(priv, data);

			else

				mlxreg_hotplug_device_create(priv, data);

		} else {

			if (item->inversed)

				mlxreg_hotplug_device_create(priv, data);

			else

				mlxreg_hotplug_device_destroy(data);

				mlxreg_hotplug_device_destroy(priv, data);

		}

	}
@@ -351,7 +359,7 @@ mlxreg_hotplug_health_work_helper(struct mlxreg_hotplug_priv_data *priv, 
				 * in steady state. Disconnect associated

				 * device, if it has been connected.

				 */

				mlxreg_hotplug_device_destroy(data);

				mlxreg_hotplug_device_destroy(priv, data);

				data->attached = false;

				data->health_cntr = 0;

			}
@@ -569,7 +577,7 @@ static void mlxreg_hotplug_unset_irq(struct mlxreg_hotplug_priv_data *priv) 
		/* Remove all the attached devices in group. */

		count = item->count;

		for (j = 0; j < count; j++, data++)

			mlxreg_hotplug_device_destroy(data);

			mlxreg_hotplug_device_destroy(priv, data);

	}

}
@@ -634,10 +642,6 @@ static int mlxreg_hotplug_probe(struct platform_device *pdev) 
	disable_irq(priv->irq);

	spin_lock_init(&priv->lock);

	INIT_DELAYED_WORK(&priv->dwork_irq, mlxreg_hotplug_work_handler);

	/* Perform initial interrupts setup. */

	mlxreg_hotplug_set_irq(priv);



	priv->after_probe = true;

	dev_set_drvdata(&pdev->dev, priv);



	err = mlxreg_hotplug_attr_init(priv);
@@ -655,6 +659,10 @@ static int mlxreg_hotplug_probe(struct platform_device *pdev) 
		return PTR_ERR(priv->hwmon);

	}



	/* Perform initial interrupts setup. */

	mlxreg_hotplug_set_irq(priv);

	priv->after_probe = true;



	return 0;

}