iwlwifi: move iwl4965_set_pwr_src to iwl4965-base.c

This patch moves iwl4965_set_pwr_src to iwl4965-base.c.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl4965-base.c b/drivers/net/wireless/iwlwifi/iwl4965-base.c
index 94ce026..ac02342 100644
--- a/drivers/net/wireless/iwlwifi/iwl4965-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl4965-base.c
@@ -1262,6 +1262,37 @@
 		wake_up_interruptible(&priv->wait_command_queue);
 }
 
+int iwl4965_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src)
+{
+	int ret;
+	unsigned long flags;
+
+	spin_lock_irqsave(&priv->lock, flags);
+	ret = iwl_grab_nic_access(priv);
+	if (ret)
+		goto err;
+
+	if (src == IWL_PWR_SRC_VAUX) {
+		u32 val;
+		ret = pci_read_config_dword(priv->pci_dev, PCI_POWER_SOURCE,
+					    &val);
+
+		if (val & PCI_CFG_PMC_PME_FROM_D3COLD_SUPPORT)
+			iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
+					       APMG_PS_CTRL_VAL_PWR_SRC_VAUX,
+					       ~APMG_PS_CTRL_MSK_PWR_SRC);
+	} else {
+		iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
+				       APMG_PS_CTRL_VAL_PWR_SRC_VMAIN,
+				       ~APMG_PS_CTRL_MSK_PWR_SRC);
+	}
+
+	iwl_release_nic_access(priv);
+err:
+	spin_unlock_irqrestore(&priv->lock, flags);
+	return ret;
+}
+
 /**
  * iwl4965_setup_rx_handlers - Initialize Rx handler callbacks
  *