package/kernel/mac80211/patches/rt2x00/019-rt2800-comment-and-simplify-AGC-init-for-RT6352.patch

   1 From cb77f0f92f596a2ef54246db7321e319305e8156 Mon Sep 17 00:00:00 2001
   2 From: Stanislaw Gruszka <sgruszka@redhat.com>
   3 Date: Wed, 13 Feb 2019 11:09:16 +0100
   4 Subject: [PATCH 19/28] rt2800: comment and simplify AGC init for RT6352
   5
   6 We do not need separate lines for calculating register values.
   7 Also add comment that value is different than in vendor driver.
   8
   9 Suggested-by: Daniel Golle <daniel@makrotopia.org>
  10 Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
  11 ---
  12  drivers/net/wireless/ralink/rt2x00/rt2800lib.c | 9 ++++++---
  13  1 file changed, 6 insertions(+), 3 deletions(-)
  14
  15 --- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
  16 +++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
  17 @@ -3989,9 +3989,12 @@ static void rt2800_config_channel(struct
  18                 rt2800_bbp_write(rt2x00dev, 195, 141);
  19                 rt2800_bbp_write(rt2x00dev, 196, reg);
  20
  21 -               /* AGC init */
  22 -               reg = rf->channel <= 14 ? 0x1c : 0x24;
  23 -               reg += 2 * rt2x00dev->lna_gain;
  24 +               /* AGC init.
  25 +                * Despite the vendor driver using different values here for
  26 +                * RT6352 chip, we use 0x1c for now. This may have to be changed
  27 +                * once TSSI got implemented.
  28 +                */
  29 +               reg = (rf->channel <= 14 ? 0x1c : 0x24) + 2*rt2x00dev->lna_gain;
  30                 rt2800_bbp_write_with_rx_chain(rt2x00dev, 66, reg);
  31
  32                 rt2800_iq_calibrate(rt2x00dev, rf->channel);