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spi: dw-pci: convert to use dev_pm_ops

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Convert system PM callbacks to use dev_pm_ops. In addition remove the PCI calls
related to a power state since the bus code cares about this already.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Andy Shevchenko 2014-08-29 12:41:41 +03:00 committed by Mark Brown
parent ceb86de9d6
commit 35f2d41364
1 changed files with 11 additions and 22 deletions
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33
drivers/spi/spi-dw-pci.c
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@ -93,38 +93,26 @@ static void spi_pci_remove(struct pci_dev *pdev)
dw_spi_remove_host(&dwpci->dws); dw_spi_remove_host(&dwpci->dws);
} }
#ifdef CONFIG_PM #ifdef CONFIG_PM_SLEEP
static int spi_suspend(struct pci_dev *pdev, pm_message_t state) static int spi_suspend(struct device *dev)
{ {
struct pci_dev *pdev = to_pci_dev(dev);
struct dw_spi_pci *dwpci = pci_get_drvdata(pdev); struct dw_spi_pci *dwpci = pci_get_drvdata(pdev);
int ret;
ret = dw_spi_suspend_host(&dwpci->dws); return dw_spi_suspend_host(&dwpci->dws);
if (ret)
return ret;
pci_save_state(pdev);
pci_disable_device(pdev);
pci_set_power_state(pdev, pci_choose_state(pdev, state));
return ret;
} }
static int spi_resume(struct pci_dev *pdev) static int spi_resume(struct device *dev)
{ {
struct pci_dev *pdev = to_pci_dev(dev);
struct dw_spi_pci *dwpci = pci_get_drvdata(pdev); struct dw_spi_pci *dwpci = pci_get_drvdata(pdev);
int ret;
pci_set_power_state(pdev, PCI_D0);
pci_restore_state(pdev);
ret = pci_enable_device(pdev);
if (ret)
return ret;
return dw_spi_resume_host(&dwpci->dws); return dw_spi_resume_host(&dwpci->dws);
} }
#else
#define spi_suspend NULL
#define spi_resume NULL
#endif #endif
static SIMPLE_DEV_PM_OPS(dw_spi_pm_ops, spi_suspend, spi_resume);
static const struct pci_device_id pci_ids[] = { static const struct pci_device_id pci_ids[] = {
/* Intel MID platform SPI controller 0 */ /* Intel MID platform SPI controller 0 */
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0800) }, { PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0800) },
@ -136,8 +124,9 @@ static struct pci_driver dw_spi_driver = {
.id_table = pci_ids, .id_table = pci_ids,
.probe = spi_pci_probe, .probe = spi_pci_probe,
.remove = spi_pci_remove, .remove = spi_pci_remove,
.suspend = spi_suspend, .driver = {
.resume = spi_resume, .pm = &dw_spi_pm_ops,
},
}; };
module_pci_driver(dw_spi_driver); module_pci_driver(dw_spi_driver);