mac80211: rt2x00: backport accepted and pending patches from upstream

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

diff --git a/package/kernel/mac80211/patches/rt2x00/019-rt2800-comment-and-simplify-AGC-init-for-RT6352.patch b/package/kernel/mac80211/patches/rt2x00/019-rt2800-comment-and-simplify-AGC-init-for-RT6352.patch
new file mode 100644 (file)
index 0000000..936651c
--- /dev/null
+++ b/package/kernel/mac80211/patches/rt2x00/019-rt2800-comment-and-simplify-AGC-init-for-RT6352.patch
@@ -0,0 +1,32 @@
+From cb77f0f92f596a2ef54246db7321e319305e8156 Mon Sep 17 00:00:00 2001
+From: Stanislaw Gruszka <sgruszka@redhat.com>
+Date: Wed, 13 Feb 2019 11:09:16 +0100
+Subject: [PATCH 19/28] rt2800: comment and simplify AGC init for RT6352
+
+We do not need separate lines for calculating register values.
+Also add comment that value is different than in vendor driver.
+
+Suggested-by: Daniel Golle <daniel@makrotopia.org>
+Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
+---
+ drivers/net/wireless/ralink/rt2x00/rt2800lib.c | 9 ++++++---
+ 1 file changed, 6 insertions(+), 3 deletions(-)
+
+--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
++++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
+@@ -3989,9 +3989,12 @@ static void rt2800_config_channel(struct
+               rt2800_bbp_write(rt2x00dev, 195, 141);
+               rt2800_bbp_write(rt2x00dev, 196, reg);
+ 
+-              /* AGC init */
+-              reg = rf->channel <= 14 ? 0x1c : 0x24;
+-              reg += 2 * rt2x00dev->lna_gain;
++              /* AGC init.
++               * Despite the vendor driver using different values here for
++               * RT6352 chip, we use 0x1c for now. This may have to be changed
++               * once TSSI got implemented.
++               */
++              reg = (rf->channel <= 14 ? 0x1c : 0x24) + 2*rt2x00dev->lna_gain;
+               rt2800_bbp_write_with_rx_chain(rt2x00dev, 66, reg);
+ 
+               rt2800_iq_calibrate(rt2x00dev, rf->channel);