UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

rtw88: use read_poll_timeout_atomic() for poll loop 

This gives the added bonus of not wasting an extra udelay() if we're
timing out -- we double-check the register state one last time before
returning.

Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200821235733.1785009-1-briannorris@chromium.org
This commit is contained in:
Brian Norris 2020-08-21 16:57:33 -07:00 committed by Kalle Valo
parent 22b726cbdd
commit 86fbf26491
1 changed files with 4 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/net/wireless/realtek/rtw88/mac.c
View File

@ -114,18 +114,13 @@ static int rtw_mac_pre_system_cfg(struct rtw_dev *rtwdev)
static bool do_pwr_poll_cmd(struct rtw_dev *rtwdev, u32 addr, u32 mask, u32 target)
{
u32 cnt;
u32 val;
target &= mask;
for (cnt = 0; cnt < RTW_PWR_POLLING_CNT; cnt++) {
if ((rtw_read8(rtwdev, addr) & mask) == target)
return true;
udelay(50);
}
return false;
return read_poll_timeout_atomic(rtw_read8, val, (val & mask) == target,
50, 50 * RTW_PWR_POLLING_CNT, false,
rtwdev, addr) == 0;
}
static int rtw_pwr_cmd_polling(struct rtw_dev *rtwdev,