package/kernel/mac80211/patches/rt2x00/987-rt2x00-reduce-tx-power-to-nominal-level-on-RT6352.patch

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  76 From: =?utf-8?q?Tomislav_Po=C5=BEega?= <pozega.tomislav@gmail.com>
  77 To: linux-wireless@vger.kernel.org
  78 Cc: kvalo@codeaurora.org, hauke@hauke-m.de, nbd@nbd.name,
  79         john@phrozen.org, sgruszka@redhat.com, daniel@makrotopia.org
  80 Subject: [PATCH 1/2] rt2x00: reduce tx power to nominal level on RT6352
  81 Date: Thu, 27 Dec 2018 15:05:25 +0100
  82 Message-Id: <1545919526-4074-1-git-send-email-pozega.tomislav@gmail.com>
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  91
  92 Current implementation of RT6352 support provides too high tx power
  93 at least on iPA/eLNA devices. Reduce amplification of variable gain
  94 amplifier by 6dB to match board target power of 17dBm.
  95 Transmited signal strength with this patch is similar to that of
  96 stock firmware or pandorabox firmware. Throughput measured with iperf
  97 improves. Device tested: Xiaomi Miwifi Mini.
  98
  99 Signed-off-by: Tomislav Požega <pozega.tomislav@gmail.com>
 100 ---
 101  drivers/net/wireless/ralink/rt2x00/rt2800lib.c |    2 +-
 102  1 files changed, 1 insertions(+), 1 deletions(-)
 103
 104 --- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
 105 +++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
 106 @@ -5814,7 +5814,7 @@ static int rt2800_init_registers(struct
 107                 rt2800_register_write(rt2x00dev, TX_SW_CFG2, 0x00000000);
 108                 rt2800_register_write(rt2x00dev, MIMO_PS_CFG, 0x00000002);
 109                 rt2800_register_write(rt2x00dev, TX_PIN_CFG, 0x00150F0F);
 110 -               rt2800_register_write(rt2x00dev, TX_ALC_VGA3, 0x06060606);
 111 +               rt2800_register_write(rt2x00dev, TX_ALC_VGA3, 0x00000000);
 112                 rt2800_register_write(rt2x00dev, TX0_BB_GAIN_ATTEN, 0x0);
 113                 rt2800_register_write(rt2x00dev, TX1_BB_GAIN_ATTEN, 0x0);
 114                 rt2800_register_write(rt2x00dev, TX0_RF_GAIN_ATTEN, 0x6C6C666C);