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rtlwifi: rtl8723be: Fix loss of signal

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commit 78dc897b7ee67205423dbbc6b56be49fb18d15b5 upstream.

In commit c713fb071edc ("rtlwifi: rtl8821ae: Fix connection lost problem
correctly") a problem in rtl8821ae that caused loss of signal was fixed.
That same problem has now been reported for rtl8723be. Accordingly,
the ASPM L1 latency has been increased from 0 to 7 to fix the instability.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org>
Tested-by: James Cameron <quozl@laptop.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Larry Finger 2018-02-22 14:28:59 -06:00 committed by Greg Kroah-Hartman
parent 0a9be1b132
commit 0e17fddb64
1 changed files with 2 additions and 1 deletions
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3
drivers/net/wireless/realtek/rtlwifi/rtl8723be/hw.c
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@ -1125,7 +1125,8 @@ static void _rtl8723be_enable_aspm_back_door(struct ieee80211_hw *hw)
/* Configuration Space offset 0x70f BIT7 is used to control L0S */
tmp8 = _rtl8723be_dbi_read(rtlpriv, 0x70f);
_rtl8723be_dbi_write(rtlpriv, 0x70f, tmp8 | BIT(7));
_rtl8723be_dbi_write(rtlpriv, 0x70f, tmp8 | BIT(7) |
ASPM_L1_LATENCY << 3);
/* Configuration Space offset 0x719 Bit3 is for L1
* BIT4 is for clock request