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b43: remove warning for LP-PHY with sprom < 8

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The BCM5354 SoC has a build in ieee80211 core rev 13 with a LP-PHY on
it. This devices has a sprom version 3 stored in the nvram. This patch
removes the warning and uses the opo values from the sprom as mentioned
in the specs.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Hauke Mehrtens 2013-03-21 20:28:40 +01:00 committed by John W. Linville
parent 7e4235acfc
commit 64513ef449
1 changed files with 3 additions and 9 deletions
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12
drivers/net/wireless/b43/phy_lp.c
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@ -104,14 +104,8 @@ static void lpphy_read_band_sprom(struct b43_wldev *dev)
maxpwr = sprom->maxpwr_bg;
lpphy->max_tx_pwr_med_band = maxpwr;
cckpo = sprom->cck2gpo;
/*
* We don't read SPROM's opo as specs say. On rev8 SPROMs
* opo == ofdm2gpo and we don't know any SSB with LP-PHY
* and SPROM rev below 8.
*/
B43_WARN_ON(sprom->revision < 8);
ofdmpo = sprom->ofdm2gpo;
if (cckpo) {
ofdmpo = sprom->ofdm2gpo;
for (i = 0; i < 4; i++) {
lpphy->tx_max_rate[i] =
maxpwr - (ofdmpo & 0xF) * 2;
@ -124,11 +118,11 @@ static void lpphy_read_band_sprom(struct b43_wldev *dev)
ofdmpo >>= 4;
}
} else {
ofdmpo &= 0xFF;
u8 opo = sprom->opo;
for (i = 0; i < 4; i++)
lpphy->tx_max_rate[i] = maxpwr;
for (i = 4; i < 15; i++)
lpphy->tx_max_rate[i] = maxpwr - ofdmpo;
lpphy->tx_max_rate[i] = maxpwr - opo;
}
} else { /* 5GHz */
lpphy->tx_isolation_low_band = sprom->tri5gl;