From: <gregkh@linuxfoundation.org>
To: Larry.Finger@lwfinger.net, gregkh@linuxfoundation.org,
kvalo@codeaurora.org, quozl@laptop.org, stable@vger.kernel.org
Cc: <stable@vger.kernel.org>, <stable-commits@vger.kernel.org>
Subject: Patch "rtlwifi: rtl8723be: Fix loss of signal" has been added to the 4.15-stable tree
Date: Sun, 25 Mar 2018 12:05:38 +0200 [thread overview]
Message-ID: <15219723388928@kroah.com> (raw)
This is a note to let you know that I've just added the patch titled
rtlwifi: rtl8723be: Fix loss of signal
to the 4.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
rtlwifi-rtl8723be-fix-loss-of-signal.patch
and it can be found in the queue-4.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.
>From 78dc897b7ee67205423dbbc6b56be49fb18d15b5 Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Thu, 22 Feb 2018 14:28:59 -0600
Subject: rtlwifi: rtl8723be: Fix loss of signal
From: Larry Finger <Larry.Finger@lwfinger.net>
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>
---
drivers/net/wireless/realtek/rtlwifi/rtl8723be/hw.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8723be/hw.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8723be/hw.c
@@ -1124,7 +1124,8 @@ static void _rtl8723be_enable_aspm_back_
/* 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
Patches currently in stable-queue which might be from Larry.Finger@lwfinger.net are
queue-4.15/rtlwifi-rtl8723be-fix-loss-of-signal.patch
reply other threads:[~2018-03-25 10:06 UTC|newest]
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