openwrt/package/kernel/mac80211/patches/021-02-rt2800-do-VCO-calibration-after-programming-ALC.patch
Daniel Golle 820a39687d mac80211: rt2x00: fix MT7620 LNA gain and VCO-after-ALC
This should fix issues with bad RX as well as AP not coming up and/or
scanning failing.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2017-05-02 23:17:22 +02:00

35 lines
1.3 KiB
Diff

From feb608c7986c14bab153f31f8e96f251072e6578 Mon Sep 17 00:00:00 2001
From: Daniel Golle <daniel@makrotopia.org>
Date: Mon, 10 Apr 2017 15:33:20 +0200
Subject: [PATCH 2/2] rt2800: do VCO calibration after programming ALC
To: Stanislaw Gruszka <sgruszka@redhat.com>
Cc: Helmut Schaa <helmut.schaa@googlemail.com>,
linux-wireless@vger.kernel.org,
Kalle Valo <kvalo@codeaurora.org>
Scanning fails if we don't do VCO calibration every time.
The vendor driver duplicates the VCO calibration function into the
channel switching logic, we can do the same with less duplication.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
---
drivers/net/wireless/ralink/rt2x00/rt2800lib.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
index 7135519a638c..870bf315f98b 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
@@ -3407,6 +3407,8 @@ static void rt2800_config_alc(struct rt2x00_dev *rt2x00dev,
rt2800_rfcsr_write(rt2x00dev, 42, 0x5b);
}
rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, mac_sys_ctrl);
+
+ rt2800_vco_calibration(rt2x00dev);
}
static void rt2800_bbp_write_with_rx_chain(struct rt2x00_dev *rt2x00dev,
--
2.12.2