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iwlwifi: mvm: ignore temperature updates in the RX statistics notification

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If the firmware sends spontaneous DTS notfications with the
temperature (indicated in a TLV), we can ignore the temperature we get
in the RX statistics notifications.  This prevents potentially
handling the same temperature change twice.  It also ignores
notifications with temperature equal to 0 that happens from time to
time.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This commit is contained in:
Luciano Coelho 2015-01-14 21:39:34 +02:00 committed by Emmanuel Grumbach
parent be77c29cef
commit 57d7b6a4cd
2 changed files with 7 additions and 1 deletions
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2
drivers/net/wireless/iwlwifi/iwl-fw-file.h
View File

@ -246,6 +246,7 @@ enum iwl_ucode_tlv_flag {
* the actual dwell time.
* @IWL_UCODE_TLV_API_SCD_CFG: This firmware can configure the scheduler
* through the dedicated host command.
* @IWL_UCODE_TLV_API_ASYNC_DTM: Async temperature notifications are supported.
*/
enum iwl_ucode_tlv_api {
IWL_UCODE_TLV_API_BT_COEX_SPLIT = BIT(3),
@ -255,6 +256,7 @@ enum iwl_ucode_tlv_api {
IWL_UCODE_TLV_API_FRAGMENTED_SCAN = BIT(8),
IWL_UCODE_TLV_API_BASIC_DWELL = BIT(13),
IWL_UCODE_TLV_API_SCD_CFG = BIT(15),
IWL_UCODE_TLV_API_ASYNC_DTM = BIT(17),
};
/**

6
drivers/net/wireless/iwlwifi/mvm/rx.c
View File

@ -516,7 +516,11 @@ int iwl_mvm_rx_statistics(struct iwl_mvm *mvm,
.mvm = mvm,
};
iwl_mvm_tt_temp_changed(mvm,
/* Only handle rx statistics temperature changes if async temp
* notifications are not supported
*/
if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_ASYNC_DTM))
iwl_mvm_tt_temp_changed(mvm,
le32_to_cpu(stats->general.radio_temperature));
iwl_mvm_update_rx_statistics(mvm, stats);