brcmsmac: change pa_gain for bcm4313 iPA

The function wlc_lcnphy_load_tx_gain_table() has a target PA
gain specified for the iPA variant of the bcm4313. This gain
value is reduced to avoid PA distortion. The if-statement is
removed because it was rather redundant in the first place.
Please note that this patch does not provide full iPA support.

Cc: Jonas Gorski <jogo@openwrt.org>
Tested-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmsmac/phy/phy_lcn.c b/drivers/net/wireless/brcm80211/brcmsmac/phy/phy_lcn.c
index e646ba0b03f53ad82c663aecebaabaf2488e83ed..8dc5d0ff2dc99360b39a1c596f6407ee71b04bc7 100644 (file)
--- a/drivers/net/wireless/brcm80211/brcmsmac/phy/phy_lcn.c
+++ b/drivers/net/wireless/brcm80211/brcmsmac/phy/phy_lcn.c
@@ -4282,13 +4282,10 @@ wlc_lcnphy_load_tx_gain_table(struct brcms_phy *pi,
        u16 pa_gain;
        u16 gm_gain;
 
-       if (CHSPEC_IS5G(pi->radio_chanspec))
-               pa_gain = 0x70;
-       else
-               pa_gain = 0x70;
-
        if (pi->sh->boardflags & BFL_FEM)
                pa_gain = 0x10;
+       else
+               pa_gain = 0x60;
        tab.tbl_id = LCNPHY_TBL_ID_TXPWRCTL;
        tab.tbl_width = 32;
        tab.tbl_len = 1;