iwlwifi: disable early power Off reset for all NICs
This feature needs to be disabled for all NICs.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/drivers/net/wireless/iwlwifi/dvm/main.c b/drivers/net/wireless/iwlwifi/dvm/main.c
index bba3edf..c642c21 100644
--- a/drivers/net/wireless/iwlwifi/dvm/main.c
+++ b/drivers/net/wireless/iwlwifi/dvm/main.c
@@ -51,11 +51,13 @@
#include "iwl-op-mode.h"
#include "iwl-drv.h"
#include "iwl-modparams.h"
+#include "iwl-prph.h"
#include "dev.h"
#include "calib.h"
#include "agn.h"
+
/******************************************************************************
*
* module boiler plate
@@ -2076,7 +2078,16 @@
CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
CSR_HW_IF_CONFIG_REG_BIT_MAC_SI);
- priv->lib->nic_config(priv);
+ /* W/A : NIC is stuck in a reset state after Early PCIe power off
+ * (PCIe power is lost before PERST# is asserted),
+ * causing ME FW to lose ownership and not being able to obtain it back.
+ */
+ iwl_set_bits_mask_prph(priv->trans, APMG_PS_CTRL_REG,
+ APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS,
+ ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS);
+
+ if (priv->lib->nic_config)
+ priv->lib->nic_config(priv);
}
static void iwl_wimax_active(struct iwl_op_mode *op_mode)