Lines Matching +full:reset +full:- +full:controller

1 // SPDX-License-Identifier: GPL-2.0
3  * ARM System Control and Management Interface (ARM SCMI) reset driver
11 #include <linux/reset-controller.h>
15  * struct scmi_reset_data - reset controller information structure
16  * @rcdev: reset controller entity
17  * @handle: ARM SCMI handle used for communication with system controller
25 #define to_scmi_handle(p)	(to_scmi_reset_data(p)->handle)
28  * scmi_reset_assert() - assert device reset
29  * @rcdev: reset controller entity
30  * @id: ID of the reset to be asserted
32  * This function implements the reset driver op to assert a device's reset
42 	return handle->reset_ops->assert(handle, id);  in scmi_reset_assert()
46  * scmi_reset_deassert() - deassert device reset
47  * @rcdev: reset controller entity
48  * @id: ID of the reset to be deasserted
50  * This function implements the reset driver op to deassert a device's reset
60 	return handle->reset_ops->deassert(handle, id);  in scmi_reset_deassert()
64  * scmi_reset_reset() - reset the device
65  * @rcdev: reset controller entity
66  * @id: ID of the reset signal to be reset(assert + deassert)
68  * This function implements the reset driver op to trigger a device's
69  * reset signal using the ARM SCMI protocol.
78 	return handle->reset_ops->reset(handle, id);  in scmi_reset_reset()
84 	.reset		= scmi_reset_reset,
90 	struct device *dev = &sdev->dev;  in scmi_reset_probe()
91 	struct device_node *np = dev->of_node;  in scmi_reset_probe()
92 	const struct scmi_handle *handle = sdev->handle;  in scmi_reset_probe()
94 	if (!handle || !handle->reset_ops)  in scmi_reset_probe()
95 		return -ENODEV;  in scmi_reset_probe()
99 		return -ENOMEM;  in scmi_reset_probe()
101 	data->rcdev.ops = &scmi_reset_ops;  in scmi_reset_probe()
102 	data->rcdev.owner = THIS_MODULE;  in scmi_reset_probe()
103 	data->rcdev.of_node = np;  in scmi_reset_probe()
104 	data->rcdev.nr_resets = handle->reset_ops->num_domains_get(handle);  in scmi_reset_probe()
105 	data->handle = handle;  in scmi_reset_probe()
107 	return devm_reset_controller_register(dev, &data->rcdev);  in scmi_reset_probe()
111 	{ SCMI_PROTOCOL_RESET, "reset" },
117 	.name = "scmi-reset",
124 MODULE_DESCRIPTION("ARM SCMI reset controller driver");