From: Emmanuel Grumbach Date: Wed, 24 Jul 2013 07:19:06 +0000 (+0300) Subject: iwlwifi: pcie: reset the NIC before the bring up X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=2997494fa66a1c94717d69c3cfae0a94462093c6;p=linux-beck.git iwlwifi: pcie: reset the NIC before the bring up 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 Signed-off-by: Johannes Berg --- diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c index 826c15602c46..96cfcdd39079 100644 --- a/drivers/net/wireless/iwlwifi/pcie/trans.c +++ b/drivers/net/wireless/iwlwifi/pcie/trans.c @@ -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 */