diff options
| author | Bryan O'Donoghue <bryan.odonoghue@linaro.org> | 2021-06-05 02:11:30 +0100 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2021-06-14 18:18:10 +0300 |
| commit | f2f49601067bd7b7f3392a50a3738335fe9d0cb8 (patch) | |
| tree | 1cee16fe2ced783e36a16093b275580d3d5f01c1 /drivers | |
| parent | ba4e967379f0a2c2a72fb572c69761218a2468a6 (diff) | |
wcn36xx: Run suspend for the first ieee80211_vif
A subsequent set of patches will extend out suspend/resume support in this
driver, we cannot set the firmware up for multiple ipv4/ipv6 addresses and
as such we can't iterate through a list of ieee80211_vif.
Constrain the interaction with the firmware to the first ieee80211_vif on
the suspend/resume/wowlan path.
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Tested-by: Benjamin Li <benl@squareup.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210605011140.2004643-3-bryan.odonoghue@linaro.org
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/ath/wcn36xx/main.c | 31 |
1 files changed, 28 insertions, 3 deletions
diff --git a/drivers/net/wireless/ath/wcn36xx/main.c b/drivers/net/wireless/ath/wcn36xx/main.c index b361e40697a6..9a97a288a96f 100644 --- a/drivers/net/wireless/ath/wcn36xx/main.c +++ b/drivers/net/wireless/ath/wcn36xx/main.c @@ -1088,15 +1088,34 @@ static int wcn36xx_sta_remove(struct ieee80211_hw *hw, #ifdef CONFIG_PM +static struct ieee80211_vif *wcn36xx_get_first_assoc_vif(struct wcn36xx *wcn) +{ + struct wcn36xx_vif *vif_priv = NULL; + struct ieee80211_vif *vif = NULL; + + list_for_each_entry(vif_priv, &wcn->vif_list, list) { + if (vif_priv->sta_assoc) { + vif = wcn36xx_priv_to_vif(vif_priv); + break; + } + } + return vif; +} + static int wcn36xx_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wow) { struct wcn36xx *wcn = hw->priv; - int ret; + struct ieee80211_vif *vif = NULL; + int ret = 0; wcn36xx_dbg(WCN36XX_DBG_MAC, "mac suspend\n"); flush_workqueue(wcn->hal_ind_wq); - ret = wcn36xx_smd_set_power_params(wcn, true); + mutex_lock(&wcn->conf_mutex); + vif = wcn36xx_get_first_assoc_vif(wcn); + if (vif) + ret = wcn36xx_smd_set_power_params(wcn, true); + mutex_unlock(&wcn->conf_mutex); return ret; } @@ -1104,11 +1123,17 @@ static int wcn36xx_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wow) static int wcn36xx_resume(struct ieee80211_hw *hw) { struct wcn36xx *wcn = hw->priv; + struct ieee80211_vif *vif = NULL; wcn36xx_dbg(WCN36XX_DBG_MAC, "mac resume\n"); flush_workqueue(wcn->hal_ind_wq); - wcn36xx_smd_set_power_params(wcn, false); + mutex_lock(&wcn->conf_mutex); + vif = wcn36xx_get_first_assoc_vif(wcn); + if (vif) + wcn36xx_smd_set_power_params(wcn, false); + mutex_unlock(&wcn->conf_mutex); + return 0; } |