iwlagn: invoke L0S workaround for 6000/1000 series

Invoke workaround to avoid instability in L0->L0S->L1 transition on PCIe bus.
Workaround disables L0S state so device moves directly from L0->L1.
Workaround needed on all devices since and including 4965; add to 6000/1000.

Describe bug and workaround better in comments.

Signed-off-by: Ben Cahill <ben.m.cahill@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 10 insertions, 10 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c
index 32466d38d1ae..2f841a8576e0 100644
--- a/drivers/net/wireless/iwlwifi/iwl-6000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-6000.c
@@ -299,7 +299,7 @@ struct iwl_cfg iwl6000h_2agn_cfg = {
         .valid_tx_ant = ANT_AB,
         .valid_rx_ant = ANT_AB,
         .pll_cfg_val = 0,
-        .set_l0s = false,
+        .set_l0s = true,
         .use_bsm = false,
         .pa_type = IWL_PA_HYBRID,
         .max_ll_items = OTP_MAX_LL_ITEMS_6x00,
@@ -329,7 +329,7 @@ struct iwl_cfg iwl6000h_2abg_cfg = {
         .valid_tx_ant = ANT_AB,
         .valid_rx_ant = ANT_AB,
         .pll_cfg_val = 0,
-        .set_l0s = false,
+        .set_l0s = true,
         .use_bsm = false,
         .pa_type = IWL_PA_HYBRID,
         .max_ll_items = OTP_MAX_LL_ITEMS_6x00,
@@ -358,7 +358,7 @@ struct iwl_cfg iwl6000h_2bg_cfg = {
         .valid_tx_ant = ANT_AB,
         .valid_rx_ant = ANT_AB,
         .pll_cfg_val = 0,
-        .set_l0s = false,
+        .set_l0s = true,
         .use_bsm = false,
         .pa_type = IWL_PA_HYBRID,
         .max_ll_items = OTP_MAX_LL_ITEMS_6x00,
@@ -390,7 +390,7 @@ struct iwl_cfg iwl6000i_2agn_cfg = {
         .valid_tx_ant = ANT_BC,
         .valid_rx_ant = ANT_BC,
         .pll_cfg_val = 0,
-        .set_l0s = false,
+        .set_l0s = true,
         .use_bsm = false,
         .pa_type = IWL_PA_INTERNAL,
         .max_ll_items = OTP_MAX_LL_ITEMS_6x00,
@@ -420,7 +420,7 @@ struct iwl_cfg iwl6000i_2abg_cfg = {
         .valid_tx_ant = ANT_BC,
         .valid_rx_ant = ANT_BC,
         .pll_cfg_val = 0,
-        .set_l0s = false,
+        .set_l0s = true,
         .use_bsm = false,
         .pa_type = IWL_PA_INTERNAL,
         .max_ll_items = OTP_MAX_LL_ITEMS_6x00,
@@ -449,7 +449,7 @@ struct iwl_cfg iwl6000i_2bg_cfg = {
         .valid_tx_ant = ANT_BC,
         .valid_rx_ant = ANT_BC,
         .pll_cfg_val = 0,
-        .set_l0s = false,
+        .set_l0s = true,
         .use_bsm = false,
         .pa_type = IWL_PA_INTERNAL,
         .max_ll_items = OTP_MAX_LL_ITEMS_6x00,
@@ -478,7 +478,7 @@ struct iwl_cfg iwl6050_2agn_cfg = {
         .valid_tx_ant = ANT_AB,
         .valid_rx_ant = ANT_AB,
         .pll_cfg_val = 0,
-        .set_l0s = false,
+        .set_l0s = true,
         .use_bsm = false,
         .pa_type = IWL_PA_SYSTEM,
         .max_ll_items = OTP_MAX_LL_ITEMS_6x50,
@@ -508,7 +508,7 @@ struct iwl_cfg iwl6050_2abg_cfg = {
         .valid_tx_ant = ANT_AB,
         .valid_rx_ant = ANT_AB,
         .pll_cfg_val = 0,
-        .set_l0s = false,
+        .set_l0s = true,
         .use_bsm = false,
         .pa_type = IWL_PA_SYSTEM,
         .max_ll_items = OTP_MAX_LL_ITEMS_6x50,
@@ -537,7 +537,7 @@ struct iwl_cfg iwl6000_3agn_cfg = {
         .valid_tx_ant = ANT_ABC,
         .valid_rx_ant = ANT_ABC,
         .pll_cfg_val = 0,
-        .set_l0s = false,
+        .set_l0s = true,
         .use_bsm = false,
         .pa_type = IWL_PA_SYSTEM,
         .max_ll_items = OTP_MAX_LL_ITEMS_6x00,
@@ -567,7 +567,7 @@ struct iwl_cfg iwl6050_3agn_cfg = {
         .valid_tx_ant = ANT_ABC,
         .valid_rx_ant = ANT_ABC,
         .pll_cfg_val = 0,
-        .set_l0s = false,
+        .set_l0s = true,
         .use_bsm = false,
         .pa_type = IWL_PA_SYSTEM,
         .max_ll_items = OTP_MAX_LL_ITEMS_6x50,