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i2c: i801: Convert to struct dev_pm_ops for suspend/resume 

Stop using legacy PCI PM support and convert to standard dev_pm_ops.
This provides more straightforward path to add runtime PM.

While at it remove explicit PCI power state control and configuration space
save/restore as the PCI core does it.

Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Tested-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
hifive-unleashed-5.1
Jarkko Nikula 2016-03-10 14:12:21 +02:00 committed by Wolfram Sang
parent 04f59143b5
commit 2ee73c484d
1 changed files with 11 additions and 13 deletions
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24
drivers/i2c/busses/i2c-i801.c
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@ -1433,34 +1433,32 @@ static void i801_remove(struct pci_dev *dev)
}
#ifdef CONFIG_PM
static int i801_suspend(struct pci_dev *dev, pm_message_t mesg)
static int i801_suspend(struct device *dev)
{
struct i801_priv *priv = pci_get_drvdata(dev);
struct pci_dev *pci_dev = to_pci_dev(dev);
struct i801_priv *priv = pci_get_drvdata(pci_dev);
pci_save_state(dev);
pci_write_config_byte(dev, SMBHSTCFG, priv->original_hstcfg);
pci_set_power_state(dev, pci_choose_state(dev, mesg));
pci_write_config_byte(pci_dev, SMBHSTCFG, priv->original_hstcfg);
return 0;
}
static int i801_resume(struct pci_dev *dev)
static int i801_resume(struct device *dev)
{
pci_set_power_state(dev, PCI_D0);
pci_restore_state(dev);
return 0;
}
#else
#define i801_suspend NULL
#define i801_resume NULL
#endif
static UNIVERSAL_DEV_PM_OPS(i801_pm_ops, i801_suspend,
i801_resume, NULL);
static struct pci_driver i801_driver = {
.name = "i801_smbus",
.id_table = i801_ids,
.probe = i801_probe,
.remove = i801_remove,
.suspend = i801_suspend,
.resume = i801_resume,
.driver = {
.pm = &i801_pm_ops,
},
};
static int __init i2c_i801_init(void)