diff options
| author | Emmanuel Grumbach | 2013-07-02 15:47:29 +0300 |
|---|---|---|
| committer | Johannes Berg | 2013-07-16 13:12:57 +0300 |
| commit | f2532b04b2ecde7c71ff30d0b26bd6d6166c4bf6 (patch) | |
| tree | 32c231047d26af9b84608d9e4f0ba8a793b10c43 /drivers | |
| parent | e126b5d9c58870c0866357c951b4da9ed005f364 (diff) | |
iwlwifi: pcie: don't disable L1 for newest NICs
In newest NICs (7000 family and up), L1 is supported, so
avoid to disable it.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-7000.c | 1 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-config.h | 1 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/pcie/trans.c | 14 |
3 files changed, 12 insertions, 4 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-7000.c b/drivers/net/wireless/iwlwifi/iwl-7000.c index 22b7fa5b971a..7f61674685c9 100644 --- a/drivers/net/wireless/iwlwifi/iwl-7000.c +++ b/drivers/net/wireless/iwlwifi/iwl-7000.c @@ -99,6 +99,7 @@ static const struct iwl_base_params iwl7000_base_params = { .wd_timeout = IWL_LONG_WD_TIMEOUT, .max_event_log_size = 512, .shadow_reg_enable = true, + .pcie_l1_allowed = true, }; static const struct iwl_ht_params iwl7000_ht_params = { diff --git a/drivers/net/wireless/iwlwifi/iwl-config.h b/drivers/net/wireless/iwlwifi/iwl-config.h index 83b9ff6ff3ad..87fe955e2a91 100644 --- a/drivers/net/wireless/iwlwifi/iwl-config.h +++ b/drivers/net/wireless/iwlwifi/iwl-config.h @@ -152,6 +152,7 @@ struct iwl_base_params { unsigned int wd_timeout; u32 max_event_log_size; const bool shadow_reg_enable; + const bool pcie_l1_allowed; }; /* diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c index bc908d39dac1..cec0c8991285 100644 --- a/drivers/net/wireless/iwlwifi/pcie/trans.c +++ b/drivers/net/wireless/iwlwifi/pcie/trans.c @@ -1418,10 +1418,16 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev, spin_lock_init(&trans_pcie->reg_lock); init_waitqueue_head(&trans_pcie->ucode_write_waitq); - /* W/A - seems to solve weird behavior. We need to remove this if we - * don't want to stay in L1 all the time. This wastes a lot of power */ - pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1 | - PCIE_LINK_STATE_CLKPM); + if (!cfg->base_params->pcie_l1_allowed) { + /* + * W/A - seems to solve weird behavior. We need to remove this + * if we don't want to stay in L1 all the time. This wastes a + * lot of power. + */ + pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S | + PCIE_LINK_STATE_L1 | + PCIE_LINK_STATE_CLKPM); + } if (pci_enable_device(pdev)) { err = -ENODEV; |