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linux-next/drivers/acpi/int340x_thermal.c
Zhang Rui 014d9d5d0c ACPI/int340x_thermal: enumerate INT3401 for Intel SoC DTS thermal driver
Intel SoC DTS thermal driver on Baytrail platform uses IRQ 86 for
critical overheating notification.
But this IRQ 86 is described in the _CRS control method of INT3401 device,
thus we should enumerate INT3401 to set the IRQ descriptor when
Intel SoC DTS thermal driver is built.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Tested-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
2015-01-06 08:17:14 +08:00

55 lines
1.4 KiB
C

/*
* ACPI support for int340x thermal drivers
*
* Copyright (C) 2014, Intel Corporation
* Authors: Zhang Rui <rui.zhang@intel.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/acpi.h>
#include <linux/module.h>
#include "internal.h"
#define INT3401_DEVICE 0X01
static const struct acpi_device_id int340x_thermal_device_ids[] = {
{"INT3400"},
{"INT3401", INT3401_DEVICE},
{"INT3402"},
{"INT3403"},
{"INT3404"},
{"INT3406"},
{"INT3407"},
{"INT3408"},
{"INT3409"},
{"INT340A"},
{"INT340B"},
{""},
};
static int int340x_thermal_handler_attach(struct acpi_device *adev,
const struct acpi_device_id *id)
{
#if defined(CONFIG_INT340X_THERMAL) || defined(CONFIG_INT340X_THERMAL_MODULE)
acpi_create_platform_device(adev);
#elif defined(INTEL_SOC_DTS_THERMAL) || defined(INTEL_SOC_DTS_THERMAL_MODULE)
/* Intel SoC DTS thermal driver needs INT3401 to set IRQ descriptor */
if (id->driver_data == INT3401_DEVICE)
acpi_create_platform_device(adev);
#endif
return 1;
}
static struct acpi_scan_handler int340x_thermal_handler = {
.ids = int340x_thermal_device_ids,
.attach = int340x_thermal_handler_attach,
};
void __init acpi_int340x_thermal_init(void)
{
acpi_scan_add_handler(&int340x_thermal_handler);
}