mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-27 11:19:37 +00:00
![Alexander Shishkin](/assets/img/avatar_default.png)
Currently, the IRQ is passed between the glue layers and the core as a separate argument, while the MMIO resources are passed as resources. This also limits the number of IRQs thus used to one, while the current versions of Intel TH use a different MSI vector for each interrupt triggering event, of which there are 7. Change this to pass IRQ in the resources array. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
85 lines
2 KiB
C
85 lines
2 KiB
C
// 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>");
|