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Commit 271f1a4d authored by Gabor Juhos's avatar Gabor Juhos Committed by John W. Linville
Browse files

rt2x00: rt2800lib: fix VGC programming for RT3572 and RT3593 



According to the DPO_RT5572_LinuxSTA_2.6.1.3_20121022
reference driver, programming of the 'BBP 66' register
on the RT3572 and RT3593 chipsets must be done via the
'rt2800_bbp_write_with_rx_chain' function. This ensures
that value is correclty set for all RX chains.

References:
  RT35xx_ChipAGCAdjust and RT35xx_SetAGCInitValue functions
  in chips/rt35xx.c

Signed-off-by: default avatarGabor Juhos <juhosg@openwrt.org>
Acked-by: default avatarStanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 0ffd2a9a

drivers/net/wireless/rt2x00/rt2800lib.c

+8 −2
Original line number Diff line number Diff line
@@ -4442,11 +4442,17 @@ static inline void rt2800_set_vgc(struct rt2x00_dev *rt2x00dev, 
				  struct link_qual *qual, u8 vgc_level)

{

	if (qual->vgc_level != vgc_level) {

		if (rt2x00_rt(rt2x00dev, RT5592)) {

		if (rt2x00_rt(rt2x00dev, RT3572) ||

		    rt2x00_rt(rt2x00dev, RT3593)) {

			rt2800_bbp_write_with_rx_chain(rt2x00dev, 66,

						       vgc_level);

		} else if (rt2x00_rt(rt2x00dev, RT5592)) {

			rt2800_bbp_write(rt2x00dev, 83, qual->rssi > -65 ? 0x4a : 0x7a);

			rt2800_bbp_write_with_rx_chain(rt2x00dev, 66, vgc_level);

		} else

		} else {

			rt2800_bbp_write(rt2x00dev, 66, vgc_level);

		}



		qual->vgc_level = vgc_level;

		qual->vgc_level_reg = vgc_level;

	}