package/kernel/mac80211/patches/rt2x00/017-rt2800-enable-TX_PIN_CFG_LNA_PE_-bits-per-band.patch

   1 From 9ad3b55654455258a9463384edb40077439d879f Mon Sep 17 00:00:00 2001
   2 From: Stanislaw Gruszka <sgruszka@redhat.com>
   3 Date: Wed, 13 Feb 2019 11:09:14 +0100
   4 Subject: [PATCH 17/28] rt2800: enable TX_PIN_CFG_LNA_PE_ bits per band
   5
   6 Do not enable TX_PIN_CFG_LNA_PE_A* bits for 2.4GHz band and
   7 vice versa TX_PIN_CFG_LNA_PE_G* bits for 5GHz.
   8
   9 Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
  10 Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
  11 ---
  12  drivers/net/wireless/ralink/rt2x00/rt2800lib.c | 18 ++++++++++++------
  13  1 file changed, 12 insertions(+), 6 deletions(-)
  14
  15 --- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
  16 +++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
  17 @@ -3893,18 +3893,24 @@ static void rt2800_config_channel(struct
  18         switch (rt2x00dev->default_ant.rx_chain_num) {
  19         case 3:
  20                 /* Turn on tertiary LNAs */
  21 -               rt2x00_set_field32(&tx_pin, TX_PIN_CFG_LNA_PE_A2_EN, 1);
  22 -               rt2x00_set_field32(&tx_pin, TX_PIN_CFG_LNA_PE_G2_EN, 1);
  23 +               rt2x00_set_field32(&tx_pin, TX_PIN_CFG_LNA_PE_A2_EN,
  24 +                                  rf->channel > 14);
  25 +               rt2x00_set_field32(&tx_pin, TX_PIN_CFG_LNA_PE_G2_EN,
  26 +                                  rf->channel <= 14);
  27                 /* fall-through */
  28         case 2:
  29                 /* Turn on secondary LNAs */
  30 -               rt2x00_set_field32(&tx_pin, TX_PIN_CFG_LNA_PE_A1_EN, 1);
  31 -               rt2x00_set_field32(&tx_pin, TX_PIN_CFG_LNA_PE_G1_EN, 1);
  32 +               rt2x00_set_field32(&tx_pin, TX_PIN_CFG_LNA_PE_A1_EN,
  33 +                                  rf->channel > 14);
  34 +               rt2x00_set_field32(&tx_pin, TX_PIN_CFG_LNA_PE_G1_EN,
  35 +                                  rf->channel <= 14);
  36                 /* fall-through */
  37         case 1:
  38                 /* Turn on primary LNAs */
  39 -               rt2x00_set_field32(&tx_pin, TX_PIN_CFG_LNA_PE_A0_EN, 1);
  40 -               rt2x00_set_field32(&tx_pin, TX_PIN_CFG_LNA_PE_G0_EN, 1);
  41 +               rt2x00_set_field32(&tx_pin, TX_PIN_CFG_LNA_PE_A0_EN,
  42 +                                  rf->channel > 14);
  43 +               rt2x00_set_field32(&tx_pin, TX_PIN_CFG_LNA_PE_G0_EN,
  44 +                                  rf->channel <= 14);
  45                 break;
  46         }
  47