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| author | Rafał Miłecki <zajec5@gmail.com> | 2011-12-09 22:16:07 +0100 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-12-13 15:33:30 -0500 |
| commit | 775ab52142b02237a54184238e922251c59a2b5c (patch) | |
| tree | 0bc161bb6b0c15c095c96f0b46a99d7231a414b3 /drivers/bcma/host_pci.c | |
| parent | bbea3bc432dc5c08d09ca5c80afdd82515470688 (diff) | |
| download | linux-775ab52142b02237a54184238e922251c59a2b5c.tar.bz2 | |
bcma: support for suspend and resume
bcma used to lock up machine without enabling PCI or initializing CC.
Cc: stable@vger.kernel.org
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/bcma/host_pci.c')
| -rw-r--r-- | drivers/bcma/host_pci.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/drivers/bcma/host_pci.c b/drivers/bcma/host_pci.c index b0994c0e05dc..443b83a2fd7a 100644 --- a/drivers/bcma/host_pci.c +++ b/drivers/bcma/host_pci.c @@ -234,6 +234,41 @@ static void bcma_host_pci_remove(struct pci_dev *dev) pci_set_drvdata(dev, NULL); } +#ifdef CONFIG_PM +static int bcma_host_pci_suspend(struct pci_dev *dev, pm_message_t state) +{ + /* Host specific */ + pci_save_state(dev); + pci_disable_device(dev); + pci_set_power_state(dev, pci_choose_state(dev, state)); + + return 0; +} + +static int bcma_host_pci_resume(struct pci_dev *dev) +{ + struct bcma_bus *bus = pci_get_drvdata(dev); + int err; + + /* Host specific */ + pci_set_power_state(dev, 0); + err = pci_enable_device(dev); + if (err) + return err; + pci_restore_state(dev); + + /* Bus specific */ + err = bcma_bus_resume(bus); + if (err) + return err; + + return 0; +} +#else /* CONFIG_PM */ +# define bcma_host_pci_suspend NULL +# define bcma_host_pci_resume NULL +#endif /* CONFIG_PM */ + static DEFINE_PCI_DEVICE_TABLE(bcma_pci_bridge_tbl) = { { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x0576) }, { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4331) }, @@ -249,6 +284,8 @@ static struct pci_driver bcma_pci_bridge_driver = { .id_table = bcma_pci_bridge_tbl, .probe = bcma_host_pci_probe, .remove = bcma_host_pci_remove, + .suspend = bcma_host_pci_suspend, + .resume = bcma_host_pci_resume, }; int __init bcma_host_pci_init(void) |