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