iwlagn: 5000 do not support idle mode

commit f35291082294ca6737953bbe4e9491ede04ab822 upstream.

5000 series has issue supporting power save idle mode:
commit	9dc2153315650eae220898668b6aa56a25c130be

iwlwifi: always support idle mode for agn devices

For agn devices, always support idle mode which help power
consumption in idle unassociated state.

the above changes cause 5000 become not stable when power management is "on"

http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=2312

Reported-by: Devin J. Pohly <djpohly+iwl@gmail.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Devin J. Pohly <djpohly+iwl@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c
index e816c27db79455214dce66a833ef5fe30cfdcf0b..f1c3f49c0febed0a148681a42b3805807ca7c235 100644 (file)
--- a/drivers/net/wireless/iwlwifi/iwl-5000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-5000.c
@@ -421,6 +421,7 @@ static struct iwl_base_params iwl5000_base_params = {
        .chain_noise_scale = 1000,
        .wd_timeout = IWL_LONG_WD_TIMEOUT,
        .max_event_log_size = 512,
+       .no_idle_support = true,
 };
 static struct iwl_ht_params iwl5000_ht_params = {
        .ht_greenfield_support = true,

diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index a54d416ec345ce1b71d657de3ec92d4c5efb8ea6..b76996ae15fedabbb2eb425c917b8e687d32928d 100644 (file)
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -195,6 +195,7 @@ struct iwl_mod_params {
  * @temperature_kelvin: temperature report by uCode in kelvin
  * @max_event_log_size: size of event log buffer size for ucode event logging
  * @shadow_reg_enable: HW shadhow register bit
+ * @no_idle_support: do not support idle mode
  */
 struct iwl_base_params {
        int eeprom_size;
@@ -216,6 +217,7 @@ struct iwl_base_params {
        bool temperature_kelvin;
        u32 max_event_log_size;
        const bool shadow_reg_enable;
+       const bool no_idle_support;
 };
 /*
  * @advanced_bt_coexist: support advanced bt coexist

diff --git a/drivers/net/wireless/iwlwifi/iwl-power.c b/drivers/net/wireless/iwlwifi/iwl-power.c
index 595c930b28aebaf9bccd9ec50ab936190246345a..4a05a6ace3ca78f8b0a1c0b78f89da3103326efe 100644 (file)
--- a/drivers/net/wireless/iwlwifi/iwl-power.c
+++ b/drivers/net/wireless/iwlwifi/iwl-power.c
@@ -355,7 +355,8 @@ static void iwl_power_build_cmd(struct iwl_priv *priv,
 
        dtimper = priv->hw->conf.ps_dtim_period ?: 1;
 
-       if (priv->hw->conf.flags & IEEE80211_CONF_IDLE)
+       if (!priv->cfg->base_params->no_idle_support &&
+                priv->hw->conf.flags & IEEE80211_CONF_IDLE)
                iwl_static_sleep_cmd(priv, cmd, IWL_POWER_INDEX_5, 20);
        else if (iwl_tt_is_low_power_state(priv)) {
                /* in thermal throttling low power state */