iwlwifi: power management checking for shadow register

If shadow register is enable, modify the power management
command to inform uCode

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/iwlwifi/iwl-power.c

@@ -163,6 +163,11 @@ static void iwl_static_sleep_cmd(struct iwl_priv *priv,
 	else
 		cmd->flags &= ~IWL_POWER_SLEEP_OVER_DTIM_MSK;
 
+	if (priv->cfg->base_params->shadow_reg_enable)
+		cmd->flags |= IWL_POWER_SHADOW_REG_ENA;
+	else
+		cmd->flags &= ~IWL_POWER_SHADOW_REG_ENA;
+
 	if (priv->cfg->bt_params &&
 	    priv->cfg->bt_params->advanced_bt_coexist) {
 		if (!priv->cfg->bt_params->bt_sco_disable)
@@ -245,6 +250,11 @@ static void iwl_power_fill_sleep_cmd(struct iwl_priv *priv,
 	if (priv->power_data.pci_pm)
 		cmd->flags |= IWL_POWER_PCI_PM_MSK;
 
+	if (priv->cfg->base_params->shadow_reg_enable)
+		cmd->flags |= IWL_POWER_SHADOW_REG_ENA;
+	else
+		cmd->flags &= ~IWL_POWER_SHADOW_REG_ENA;
+
 	if (priv->cfg->bt_params &&
 	    priv->cfg->bt_params->advanced_bt_coexist) {
 		if (!priv->cfg->bt_params->bt_sco_disable)