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rtlwifi: rtl8192ce: rtl8192cu: rtl8192de: Fix low-gain setting when scanning

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In https://bugzilla.redhat.com/show_bug.cgi?id=770207, slowdowns of driver
rtl8192ce are reported. One fix (commit a9b89e2) has already been applied,
and it helped, but the maximum RX speed would still drop to 1 Mbps. As in
the previous fix, the initial gain was determined to be the problem; however,
the problem arises from a setting of the gain when scans are started.

Driver rtl8192de also has the same code structure - this one is fixed as well.

Reported-and-Tested-by: Ivan Pesin <ivan.pesin@gmail.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Larry Finger 2012-03-26 09:59:48 -05:00 committed by John W. Linville
parent 46470e5bb0
commit 643c61e119
2 changed files with 2 additions and 2 deletions
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2
drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c
View file

@ -1893,7 +1893,7 @@ void rtl92c_phy_set_io(struct ieee80211_hw *hw)
break;
case IO_CMD_PAUSE_DM_BY_SCAN:
rtlphy->initgain_backup.xaagccore1 = dm_digtable.cur_igvalue;
dm_digtable.cur_igvalue = 0x17;
dm_digtable.cur_igvalue = 0x37;
rtl92c_dm_write_dig(hw);
break;
default:

2
drivers/net/wireless/rtlwifi/rtl8192de/phy.c
View file

@ -3077,7 +3077,7 @@ static void rtl92d_phy_set_io(struct ieee80211_hw *hw)
break;
case IO_CMD_PAUSE_DM_BY_SCAN:
rtlphy->initgain_backup.xaagccore1 = de_digtable.cur_igvalue;
de_digtable.cur_igvalue = 0x17;
de_digtable.cur_igvalue = 0x37;
rtl92d_dm_write_dig(hw);
break;
default: