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rtw89: ps: fine tune polling interval while changing low power mode

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By experiments, it spends ~45/1090~2480us to enter/leave low power mode,
so the old polling interval 1000us can waste time. Use smaller polling
interval depends on experimental results to reduce the time to transition
state.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220503120001.79272-5-pkshih@realtek.com
This commit is contained in:
Ping-Ke Shih 2022-05-03 19:59:57 +08:00 committed by Kalle Valo
parent 78af3cc673
commit 39a7652103
1 changed files with 2 additions and 1 deletions
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3
drivers/net/wireless/realtek/rtw89/mac.c
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@ -1050,6 +1050,7 @@ static int rtw89_mac_check_cpwm_state(struct rtw89_dev *rtwdev,
void rtw89_mac_power_mode_change(struct rtw89_dev *rtwdev, bool enter)
{
enum rtw89_rpwm_req_pwr_state state;
unsigned long delay = enter ? 10 : 150;
int ret;
if (enter)
@ -1059,7 +1060,7 @@ void rtw89_mac_power_mode_change(struct rtw89_dev *rtwdev, bool enter)
rtw89_mac_send_rpwm(rtwdev, state, false);
ret = read_poll_timeout_atomic(rtw89_mac_check_cpwm_state, ret, !ret,
1000, 15000, false, rtwdev, state);
delay, 15000, false, rtwdev, state);
if (ret)
rtw89_err(rtwdev, "firmware failed to ack for %s ps mode\n",
enter ? "entering" : "leaving");