rt2800: fix wrong TX power compensation
authorStanislaw Gruszka <sgruszka@redhat.com>
Mon, 26 Aug 2013 13:18:53 +0000 (15:18 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 1 Oct 2013 16:10:50 +0000 (09:10 -0700)
commitebce1a846aa297022fc372d59e6829d0453125f2
tree191dd0e90af34c5d7a44615ad16668013f593948
parent9f76c47a322910215c42c2e4226f2bef173c84ea
rt2800: fix wrong TX power compensation

commit 6e956da2027c767859128b9bfef085cf2a8e233b upstream.

We should not do temperature compensation on devices without
EXTERNAL_TX_ALC bit set (called DynamicTxAgcControl on vendor driver).
Such devices can have totally bogus TSSI parameters on the EEPROM,
but still threaded by us as valid and result doing wrong TX power
calculations.

This fix inability to connect to AP on slightly longer distance on
some Ralink chips/devices.

Reported-and-tested-by: Fabien ADAM <id2ndr@crocobox.org>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/net/wireless/rt2x00/rt2800lib.c