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| author | Luciano Coelho <luciano.coelho@intel.com> | 2015-04-27 20:38:10 +0200 |
|---|---|---|
| committer | Emmanuel Grumbach <emmanuel.grumbach@intel.com> | 2015-05-26 18:21:07 +0200 |
| commit | a61408e9a48e7634984408e334b125a72726440e (patch) | |
| tree | e1c56fe8efbbec8a9b61f50cef95dd5a929efefd | |
| parent | Merge remote-tracking branch 'iwlwifi-fixes/master' into iwlwifi-next (diff) | |
| download | linux-a61408e9a48e7634984408e334b125a72726440e.tar.xz linux-a61408e9a48e7634984408e334b125a72726440e.zip | |
iwlwifi: pcie: don't call set_pwr functions for family 8000
We should not call the iwl_pcie_set_pwr() functions in the
suspend/resume flows for family 8000, because the register used is
locked in devices from this family. Doing this causes an NMI
protection error (RT_NMI_INTERRUPT_PREG_PROTECTION).
To fix this, skip those calls if the device family is
IWL_DEVICE_FAMILY_8000.
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
| -rw-r--r-- | drivers/net/wireless/iwlwifi/pcie/trans.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c index 8e5be8d6f4a8..d8943384107e 100644 --- a/drivers/net/wireless/iwlwifi/pcie/trans.c +++ b/drivers/net/wireless/iwlwifi/pcie/trans.c @@ -1164,7 +1164,8 @@ static void iwl_trans_pcie_d3_suspend(struct iwl_trans *trans, bool test) */ iwl_trans_pcie_tx_reset(trans); - iwl_pcie_set_pwr(trans, true); + if (trans->cfg->device_family != IWL_DEVICE_FAMILY_8000) + iwl_pcie_set_pwr(trans, true); } static int iwl_trans_pcie_d3_resume(struct iwl_trans *trans, @@ -1202,7 +1203,8 @@ static int iwl_trans_pcie_d3_resume(struct iwl_trans *trans, return ret; } - iwl_pcie_set_pwr(trans, false); + if (trans->cfg->device_family != IWL_DEVICE_FAMILY_8000) + iwl_pcie_set_pwr(trans, false); iwl_trans_pcie_tx_reset(trans); |