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| author | Abhijeet Kolekar <abhijeet.kolekar@intel.com> | 2010-04-14 19:27:00 +0200 |
|---|---|---|
| committer | Reinette Chatre <reinette.chatre@intel.com> | 2010-05-01 00:34:30 +0200 |
| commit | cd398c313785cb5f2b8cb2c85e865f06419b1730 (patch) | |
| tree | c00c3a6db44d8e5cecb984a2529e1f6381979ee1 | |
| parent | iwlwifi: remove outdated comments (diff) | |
| download | linux-cd398c313785cb5f2b8cb2c85e865f06419b1730.tar.xz linux-cd398c313785cb5f2b8cb2c85e865f06419b1730.zip | |
iwlwifi: reset pci retry timeout
We removed resetting of PCI_RETRY_TIMEOUT register
in merge of suspend resume work.
'Suspend and resume' resets the PCI configuration space, so we
have to disable the RETRY_TIMEOUT register again here.
Signed-off-by: Abhijeet Kolekar <abhijeet.kolekar@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-core.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c index 1cbc22a180a7..1e11706dcf63 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.c +++ b/drivers/net/wireless/iwlwifi/iwl-core.c @@ -2930,6 +2930,12 @@ int iwl_pci_resume(struct pci_dev *pdev) struct iwl_priv *priv = pci_get_drvdata(pdev); int ret; + /* + * We disable the RETRY_TIMEOUT register (0x41) to keep + * PCI Tx retries from interfering with C3 CPU state. + */ + pci_write_config_byte(pdev, PCI_CFG_RETRY_TIMEOUT, 0x00); + pci_set_power_state(pdev, PCI_D0); ret = pci_enable_device(pdev); if (ret) |