iwlwifi: separate the APM from the EEPROM

There is no link between the two. Ensure that the NIC is on outside
the code of the EEPROM handling.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

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

@@ -1848,8 +1848,12 @@ int iwl_probe(struct iwl_bus *bus, const struct iwl_trans_ops *trans_ops,
 	/*****************
 	 * 4. Read EEPROM
 	 *****************/
+	/* switch the NIC on before accessing the EEPROM */
+	iwl_apm_init(priv);
 	/* Read the EEPROM */
 	err = iwl_eeprom_init(priv, hw_rev);
+	/* Reset chip to save power until we load uCode during "up". */
+	iwl_apm_stop(priv);
 	if (err) {
 		IWL_ERR(priv, "Unable to init EEPROM\n");
 		goto out_free_trans;

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

@@ -676,8 +676,6 @@ int iwl_eeprom_init(struct iwl_priv *priv, u32 hw_rev)
 	}
 	e = (__le16 *)shrd->eeprom;
 
-	iwl_apm_init(priv);
-
 	ret = iwl_eeprom_verify_signature(trans(priv));
 	if (ret < 0) {
 		IWL_ERR(priv, "EEPROM not found, EEPROM_GP=0x%08x\n", gp);
@@ -758,8 +756,6 @@ int iwl_eeprom_init(struct iwl_priv *priv, u32 hw_rev)
 err:
 	if (ret)
 		iwl_eeprom_free(priv->shrd);
-	/* Reset chip to save power until we load uCode during "up". */
-	iwl_apm_stop(priv);
 alloc_err:
 	return ret;
 }