iwlwifi: mvm: remove support for legacy power API

If the driver detects old firmware, we disable support for
power management.
This greatly simplifies the code.

Reviewed-by: Alexander Bondar <alexander.bondar@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

1 files changed, 7 insertions, 1 deletions

diff --git a/drivers/net/wireless/iwlwifi/mvm/fw.c b/drivers/net/wireless/iwlwifi/mvm/fw.c
index 212ffecf038b..155bb20519c2 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/iwlwifi/mvm/fw.c
@@ -442,7 +442,13 @@ int iwl_mvm_up(struct iwl_mvm *mvm)
         /* Initialize tx backoffs to the minimal possible */
         iwl_mvm_tt_tx_backoff(mvm, 0);
 
-        ret = iwl_mvm_power_update_device_mode(mvm);
+        if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_PM_CMD_SUPPORT)) {
+                ret = iwl_power_legacy_set_cam_mode(mvm);
+                if (ret)
+                        goto error;
+        }
+
+        ret = iwl_mvm_power_update_device(mvm);
         if (ret)
                 goto error;