diff options
| author | Yan-Hsuan Chuang <yhchuang@realtek.com> | 2017-04-10 19:23:10 +0300 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2017-04-13 17:11:04 +0300 |
| commit | 4da5e7ea135283ca57be96991d5bca96438c99ad (patch) | |
| tree | e22cde5074fc44276b515688c8803df28b0385a7 | |
| parent | da0fd9ccb4325bcc95532d15e553bdb355a56e5f (diff) | |
| download | linux-4da5e7ea135283ca57be96991d5bca96438c99ad.tar.xz | |
rtlwifi: btcoex: 21a 1ant: avoid LPS/IPS mismatch for pnp notify
When driver is going to sleep, it does not leave LPS/IPS, thus the
BTCoex may have mismatch when driver wakes up. To avoid that, BTCoex
needs to clear the IPS/LPS state when it receives a pnp notify, then
it can properly set up the hw when driver wakes up.
Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
| -rw-r--r-- | drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a1ant.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a1ant.c b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a1ant.c index 0509ffab9e6f..5e9f3b0f7a25 100644 --- a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a1ant.c +++ b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a1ant.c @@ -2905,11 +2905,18 @@ void ex_btc8821a1ant_pnp_notify(struct btc_coexist *btcoexist, u8 pnp_state) if (BTC_WIFI_PNP_SLEEP == pnp_state) { RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD, "[BTCoex], Pnp notify to SLEEP\n"); + /* BT should clear UnderIPS/UnderLPS state to avoid mismatch + * state after wakeup. + */ + coex_sta->under_ips = false; + coex_sta->under_lps = false; btcoexist->stop_coex_dm = true; - btc8821a1ant_ignore_wlan_act(btcoexist, FORCE_EXEC, true); btc8821a1ant_power_save_state(btcoexist, BTC_PS_WIFI_NATIVE, 0x0, 0x0); - btc8821a1ant_ps_tdma(btcoexist, NORMAL_EXEC, false, 9); + btc8821a1ant_ps_tdma(btcoexist, NORMAL_EXEC, false, 0); + btc8821a1ant_coex_table_with_type(btcoexist, NORMAL_EXEC, 2); + btc8821a1ant_set_ant_path(btcoexist, BTC_ANT_PATH_BT, false, + true); } else if (BTC_WIFI_PNP_WAKE_UP == pnp_state) { RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD, "[BTCoex], Pnp notify to WAKE UP\n"); |