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iwlwifi: pcie: reset the NIC before the bring up

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This allows to clean all kinds of bad state it might be in.
This solves situation where HW RFkill was switched while
the NIC was offline.
Until now, we relied on the firmware to do clean the
interrupt, but new firmwares don't do that any more.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Emmanuel Grumbach 2013-07-24 10:19:06 +03:00 committed by Johannes Berg
parent bb963c4a43
commit 2997494fa6
1 changed files with 5 additions and 0 deletions
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5
drivers/net/wireless/iwlwifi/pcie/trans.c
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@ -670,6 +670,11 @@ static int iwl_trans_pcie_start_hw(struct iwl_trans *trans)
return err;
}
/* Reset the entire device */
iwl_set_bit(trans, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET);
usleep_range(10, 15);
iwl_pcie_apm_init(trans);
/* From now on, the op_mode will be kept updated about RF kill state */