From 97d1c49cacfea2d9f69d8e20d9f60e837293b1ff Mon Sep 17 00:00:00 2001 From: Daniel Golle Date: Mon, 17 Apr 2017 21:38:32 +0200 Subject: 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 --- ...-do-VCO-calibration-after-programming-ALC.patch | 34 ++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 package/kernel/mac80211/patches/021-02-rt2800-do-VCO-calibration-after-programming-ALC.patch (limited to 'package/kernel/mac80211/patches/021-02-rt2800-do-VCO-calibration-after-programming-ALC.patch') diff --git a/package/kernel/mac80211/patches/021-02-rt2800-do-VCO-calibration-after-programming-ALC.patch b/package/kernel/mac80211/patches/021-02-rt2800-do-VCO-calibration-after-programming-ALC.patch new file mode 100644 index 0000000..1dafb78 --- /dev/null +++ b/package/kernel/mac80211/patches/021-02-rt2800-do-VCO-calibration-after-programming-ALC.patch @@ -0,0 +1,34 @@ +From feb608c7986c14bab153f31f8e96f251072e6578 Mon Sep 17 00:00:00 2001 +From: Daniel Golle +Date: Mon, 10 Apr 2017 15:33:20 +0200 +Subject: [PATCH 2/2] rt2800: do VCO calibration after programming ALC +To: Stanislaw Gruszka +Cc: Helmut Schaa , + linux-wireless@vger.kernel.org, + Kalle Valo + +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 +--- + 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 + -- cgit v1.1