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// SPDX-License-Identifier: GPL-2.0
/*
* Intel(R) Trace Hub ACPI driver
*
* Copyright (C) 2017 Intel Corporation.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/types.h>
#include <linux/module.h>
#include <linux/device.h>
#include <linux/sysfs.h>
#include <linux/platform_device.h>
#include <linux/acpi.h>
#include "intel_th.h"
#define DRIVER_NAME "intel_th_acpi"
static const struct intel_th_drvdata intel_th_acpi_pch = {
.host_mode_only = 1,
};
static const struct intel_th_drvdata intel_th_acpi_uncore = {
.host_mode_only = 1,
};
static const struct acpi_device_id intel_th_acpi_ids[] = {
{ "INTC1000", (kernel_ulong_t)&intel_th_acpi_uncore },
{ "INTC1001", (kernel_ulong_t)&intel_th_acpi_pch },
{ "", 0 },
};
MODULE_DEVICE_TABLE(acpi, intel_th_acpi_ids);
static int intel_th_acpi_probe(struct platform_device *pdev)
{
struct acpi_device *adev = ACPI_COMPANION(&pdev->dev);
struct resource resource[TH_MMIO_END];
const struct acpi_device_id *id;
struct intel_th *th;
int i, r;
id = acpi_match_device(intel_th_acpi_ids, &pdev->dev);
if (!id)
return -ENODEV;
for (i = 0, r = 0; i < pdev->num_resources && r < TH_MMIO_END; i++)
if (pdev->resource[i].flags &
(IORESOURCE_IRQ | IORESOURCE_MEM))
resource[r++] = pdev->resource[i];
th = intel_th_alloc(&pdev->dev, (void *)id->driver_data, resource, r);
if (IS_ERR(th))
return PTR_ERR(th);
adev->driver_data = th;
return 0;
}
static int intel_th_acpi_remove(struct platform_device *pdev)
{
struct intel_th *th = platform_get_drvdata(pdev);
intel_th_free(th);
return 0;
}
static struct platform_driver intel_th_acpi_driver = {
.probe = intel_th_acpi_probe,
.remove = intel_th_acpi_remove,
.driver = {
.name = DRIVER_NAME,
.acpi_match_table = intel_th_acpi_ids,
},
};
module_platform_driver(intel_th_acpi_driver);
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("Intel(R) Trace Hub ACPI controller driver");
MODULE_AUTHOR("Alexander Shishkin <alexander.shishkin@intel.com>");
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