1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Intel(R) Trace Hub ACPI driver
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Copyright (C) 2017 Intel Corporation.
6*4882a593Smuzhiyun */
7*4882a593Smuzhiyun
8*4882a593Smuzhiyun #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
9*4882a593Smuzhiyun
10*4882a593Smuzhiyun #include <linux/types.h>
11*4882a593Smuzhiyun #include <linux/module.h>
12*4882a593Smuzhiyun #include <linux/device.h>
13*4882a593Smuzhiyun #include <linux/sysfs.h>
14*4882a593Smuzhiyun #include <linux/platform_device.h>
15*4882a593Smuzhiyun #include <linux/acpi.h>
16*4882a593Smuzhiyun
17*4882a593Smuzhiyun #include "intel_th.h"
18*4882a593Smuzhiyun
19*4882a593Smuzhiyun #define DRIVER_NAME "intel_th_acpi"
20*4882a593Smuzhiyun
21*4882a593Smuzhiyun static const struct intel_th_drvdata intel_th_acpi_pch = {
22*4882a593Smuzhiyun .host_mode_only = 1,
23*4882a593Smuzhiyun };
24*4882a593Smuzhiyun
25*4882a593Smuzhiyun static const struct intel_th_drvdata intel_th_acpi_uncore = {
26*4882a593Smuzhiyun .host_mode_only = 1,
27*4882a593Smuzhiyun };
28*4882a593Smuzhiyun
29*4882a593Smuzhiyun static const struct acpi_device_id intel_th_acpi_ids[] = {
30*4882a593Smuzhiyun { "INTC1000", (kernel_ulong_t)&intel_th_acpi_uncore },
31*4882a593Smuzhiyun { "INTC1001", (kernel_ulong_t)&intel_th_acpi_pch },
32*4882a593Smuzhiyun { "", 0 },
33*4882a593Smuzhiyun };
34*4882a593Smuzhiyun
35*4882a593Smuzhiyun MODULE_DEVICE_TABLE(acpi, intel_th_acpi_ids);
36*4882a593Smuzhiyun
intel_th_acpi_probe(struct platform_device * pdev)37*4882a593Smuzhiyun static int intel_th_acpi_probe(struct platform_device *pdev)
38*4882a593Smuzhiyun {
39*4882a593Smuzhiyun struct acpi_device *adev = ACPI_COMPANION(&pdev->dev);
40*4882a593Smuzhiyun struct resource resource[TH_MMIO_END];
41*4882a593Smuzhiyun const struct acpi_device_id *id;
42*4882a593Smuzhiyun struct intel_th *th;
43*4882a593Smuzhiyun int i, r;
44*4882a593Smuzhiyun
45*4882a593Smuzhiyun id = acpi_match_device(intel_th_acpi_ids, &pdev->dev);
46*4882a593Smuzhiyun if (!id)
47*4882a593Smuzhiyun return -ENODEV;
48*4882a593Smuzhiyun
49*4882a593Smuzhiyun for (i = 0, r = 0; i < pdev->num_resources && r < TH_MMIO_END; i++)
50*4882a593Smuzhiyun if (pdev->resource[i].flags &
51*4882a593Smuzhiyun (IORESOURCE_IRQ | IORESOURCE_MEM))
52*4882a593Smuzhiyun resource[r++] = pdev->resource[i];
53*4882a593Smuzhiyun
54*4882a593Smuzhiyun th = intel_th_alloc(&pdev->dev, (void *)id->driver_data, resource, r);
55*4882a593Smuzhiyun if (IS_ERR(th))
56*4882a593Smuzhiyun return PTR_ERR(th);
57*4882a593Smuzhiyun
58*4882a593Smuzhiyun adev->driver_data = th;
59*4882a593Smuzhiyun
60*4882a593Smuzhiyun return 0;
61*4882a593Smuzhiyun }
62*4882a593Smuzhiyun
intel_th_acpi_remove(struct platform_device * pdev)63*4882a593Smuzhiyun static int intel_th_acpi_remove(struct platform_device *pdev)
64*4882a593Smuzhiyun {
65*4882a593Smuzhiyun struct intel_th *th = platform_get_drvdata(pdev);
66*4882a593Smuzhiyun
67*4882a593Smuzhiyun intel_th_free(th);
68*4882a593Smuzhiyun
69*4882a593Smuzhiyun return 0;
70*4882a593Smuzhiyun }
71*4882a593Smuzhiyun
72*4882a593Smuzhiyun static struct platform_driver intel_th_acpi_driver = {
73*4882a593Smuzhiyun .probe = intel_th_acpi_probe,
74*4882a593Smuzhiyun .remove = intel_th_acpi_remove,
75*4882a593Smuzhiyun .driver = {
76*4882a593Smuzhiyun .name = DRIVER_NAME,
77*4882a593Smuzhiyun .acpi_match_table = intel_th_acpi_ids,
78*4882a593Smuzhiyun },
79*4882a593Smuzhiyun };
80*4882a593Smuzhiyun
81*4882a593Smuzhiyun module_platform_driver(intel_th_acpi_driver);
82*4882a593Smuzhiyun
83*4882a593Smuzhiyun MODULE_LICENSE("GPL v2");
84*4882a593Smuzhiyun MODULE_DESCRIPTION("Intel(R) Trace Hub ACPI controller driver");
85*4882a593Smuzhiyun MODULE_AUTHOR("Alexander Shishkin <alexander.shishkin@intel.com>");
86