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Commit ee1e8422 authored by Alexander Bondar's avatar Alexander Bondar Committed by Johannes Berg
Browse files

iwlwifi: mvm: configure power management in D3 



Configure power management in the D3 firmware by sending
the power table command to it when suspending; this uses
some values that are more suitable to a low power state.

Signed-off-by: default avatarAlexander Bondar <alexander.bondar@intel.com>
Reviewed-by: default avatarEmmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent 5b1dbfc3

drivers/net/wireless/iwlwifi/mvm/d3.c

+4 −0
Original line number Diff line number Diff line
@@ -1007,6 +1007,10 @@ int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) 
	if (ret)

		goto out;



	ret = iwl_mvm_power_update_mode(mvm, vif);

	if (ret)

		goto out;



	/* must be last -- this switches firmware state */

	ret = iwl_mvm_send_cmd_pdu(mvm, D3_CONFIG_CMD, CMD_SYNC,

				   sizeof(d3_cfg_cmd), &d3_cfg_cmd);

drivers/net/wireless/iwlwifi/mvm/power.c

+9 −3
Original line number Diff line number Diff line
@@ -138,7 +138,8 @@ void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 


	/* Check skip over DTIM conditions */

	if (!radar_detect && (dtimper <= 10) &&

	    (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_LP)) {

	    (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_LP ||

	     mvm->cur_ucode == IWL_UCODE_WOWLAN)) {

		cmd->flags |= cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK);

		cmd->num_skip_dtim = cpu_to_le32(2);

	}
@@ -150,8 +151,13 @@ void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 
	keep_alive = DIV_ROUND_UP(keep_alive, MSEC_PER_SEC);

	cmd->keep_alive_seconds = keep_alive;



	if (mvm->cur_ucode != IWL_UCODE_WOWLAN) {

		cmd->rx_data_timeout = cpu_to_le32(100 * USEC_PER_MSEC);

		cmd->tx_data_timeout = cpu_to_le32(100 * USEC_PER_MSEC);

	} else {

		cmd->rx_data_timeout = cpu_to_le32(10 * USEC_PER_MSEC);

		cmd->tx_data_timeout = cpu_to_le32(10 * USEC_PER_MSEC);

	}

}



int iwl_mvm_power_update_mode(struct iwl_mvm *mvm, struct ieee80211_vif *vif)