blob: 0e6747cae9b0a148f80329eb4fe627c1e487c590 [file] [log] [blame]
/*
* pci-atom_soc.c - register Intel MID PCI plaform ops
*
* Copyright (c) 2013, Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <linux/init.h>
#include <linux/intel_mid_pm.h>
#include <linux/kernel.h>
#include "pci.h"
static pci_power_t mid_pci_choose_state(struct pci_dev *pdev)
{
return PCI_D3hot;
}
static int mid_pci_sleep_wake(struct pci_dev *dev, bool enable)
{
return 0;
}
static int mid_pci_run_wake(struct pci_dev *dev, bool enable)
{
return 0;
}
static struct pci_platform_pm_ops mid_pci_platform_pm = {
.is_manageable = pmu_pci_power_manageable,
.choose_state = mid_pci_choose_state,
.sleep_wake = mid_pci_sleep_wake,
.run_wake = mid_pci_run_wake,
.set_state = pmu_pci_set_power_state,
.choose_state = pmu_pci_choose_state,
};
/**
* mid_pci_init - It registers callback function for all the PCI devices
* for platform specific device power on/shutdown acticities.
*/
static int __init mid_pci_init(void)
{
if (boot_cpu_data.x86 != 6)
return 0;
/*
* n.b. this model check does not uniquely identify the platform,
* and additional checks are necessary inside the pmu driver
*/
switch (boot_cpu_data.x86_model) {
case INTEL_ATOM_MFLD:
case INTEL_ATOM_CLV:
case INTEL_ATOM_MRFLD:
case INTEL_ATOM_MOORFLD:
pci_set_platform_pm(&mid_pci_platform_pm);
break;
}
return 0;
}
arch_initcall(mid_pci_init);