iwlwifi: mvm: don't write to DBGC_OUT_CTRL when stopping the recording

Due to HW bug in the DBGC when driver want to stop the dbg recording it
should wait 100us before collecting the data instead of write 0 to
DBGC_OUT_CTRL.

Signed-off-by: Eran Harary <eran.harary@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/fw.c b/drivers/net/wireless/iwlwifi/mvm/fw.c
index ca38e9817374cc6f4a462048c2d59a5244e33b1c..ab81124c6029760f9bdf8ebf2dad3a23ff50f860 100644 (file)
--- a/drivers/net/wireless/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/iwlwifi/mvm/fw.c
@@ -458,7 +458,8 @@ void iwl_mvm_fw_dbg_collect(struct iwl_mvm *mvm)
                iwl_set_bits_prph(mvm->trans, MON_BUFF_SAMPLE_CTL, 0x100);
        } else {
                iwl_write_prph(mvm->trans, DBGC_IN_SAMPLE, 0);
-               iwl_write_prph(mvm->trans, DBGC_OUT_CTRL, 0);
+               /* wait before we collect the data till the DBGC stop */
+               udelay(100);
        }
 
        schedule_work(&mvm->fw_error_dump_wk);