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| author | Eliad Peller <eliad@wizery.com> | 2014-07-01 18:38:38 +0300 |
|---|---|---|
| committer | Emmanuel Grumbach <emmanuel.grumbach@intel.com> | 2014-07-21 10:43:13 +0300 |
| commit | 576eeee9d3ab395f47462c03067c8b9381281f1d (patch) | |
| tree | d8511410c9fcdb97ad4b06790b63d77f0c08bfbf /drivers/net/wireless/iwlwifi/mvm/tt.c | |
| parent | 51ea1c7dbd4c5151b7f5777cabc505d43d2c42cb (diff) | |
| download | talos-op-linux-576eeee9d3ab395f47462c03067c8b9381281f1d.tar.gz talos-op-linux-576eeee9d3ab395f47462c03067c8b9381281f1d.zip | |
iwlwifi: mvm: add some missing iwl_mvm_ref_sync() calls
Add iwl_mvm_ref_sync() calls (with new ref types) to
flows that might access the device directly.
These calls make sure the device is out of d0i3,
and the bus is available for direct access.
Since some of these functions are reentrant, convert
the refs_bitmap to a ref counter, so multiple refs
of the same type could be taken concurrently.
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/mvm/tt.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/mvm/tt.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/tt.c b/drivers/net/wireless/iwlwifi/mvm/tt.c index 0c4ff3a57ade..0464599c111e 100644 --- a/drivers/net/wireless/iwlwifi/mvm/tt.c +++ b/drivers/net/wireless/iwlwifi/mvm/tt.c @@ -338,10 +338,16 @@ static void check_exit_ctkill(struct work_struct *work) duration = tt->params->ct_kill_duration; + /* make sure the device is available for direct read/writes */ + if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_CHECK_CTKILL)) + goto reschedule; + iwl_trans_start_hw(mvm->trans); temp = check_nic_temperature(mvm); iwl_trans_stop_device(mvm->trans); + iwl_mvm_unref(mvm, IWL_MVM_REF_CHECK_CTKILL); + if (temp < MIN_TEMPERATURE || temp > MAX_TEMPERATURE) { IWL_DEBUG_TEMP(mvm, "Failed to measure NIC temperature\n"); goto reschedule; |
