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From patchwork Thu Dec 27 14:05:25 2018
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X-Patchwork-Submitter: Tom Psyborg <pozega.tomislav@gmail.com>
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From: =?utf-8?q?Tomislav_Po=C5=BEega?= <pozega.tomislav@gmail.com>
To: linux-wireless@vger.kernel.org
Cc: kvalo@codeaurora.org, hauke@hauke-m.de, nbd@nbd.name,
john@phrozen.org, sgruszka@redhat.com, daniel@makrotopia.org
Subject: [PATCH 1/2] rt2x00: reduce tx power to nominal level on RT6352
Date: Thu, 27 Dec 2018 15:05:25 +0100
Message-Id: <1545919526-4074-1-git-send-email-pozega.tomislav@gmail.com>
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Current implementation of RT6352 support provides too high tx power
at least on iPA/eLNA devices. Reduce amplification of variable gain
amplifier by 6dB to match board target power of 17dBm.
Transmited signal strength with this patch is similar to that of
stock firmware or pandorabox firmware. Throughput measured with iperf
improves. Device tested: Xiaomi Miwifi Mini.
Signed-off-by: Tomislav Požega <pozega.tomislav@gmail.com>
---
drivers/net/wireless/ralink/rt2x00/rt2800lib.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
@@ -5814,7 +5814,7 @@ static int rt2800_init_registers(struct
rt2800_register_write(rt2x00dev, TX_SW_CFG2, 0x00000000);
rt2800_register_write(rt2x00dev, MIMO_PS_CFG, 0x00000002);
rt2800_register_write(rt2x00dev, TX_PIN_CFG, 0x00150F0F);
- rt2800_register_write(rt2x00dev, TX_ALC_VGA3, 0x06060606);
+ rt2800_register_write(rt2x00dev, TX_ALC_VGA3, 0x00000000);
rt2800_register_write(rt2x00dev, TX0_BB_GAIN_ATTEN, 0x0);
rt2800_register_write(rt2x00dev, TX1_BB_GAIN_ATTEN, 0x0);
rt2800_register_write(rt2x00dev, TX0_RF_GAIN_ATTEN, 0x6C6C666C);
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