mac80211: sync with master branch as of 9edff13abd97

[openwrt/staging/nbd.git] / package / kernel / mac80211 / patches / 306-Revert-ath9k-interpret-requested-txpower-in-EIRP-dom.patch

diff --git a/package/kernel/mac80211/patches/306-Revert-ath9k-interpret-requested-txpower-in-EIRP-dom.patch b/package/kernel/mac80211/patches/306-Revert-ath9k-interpret-requested-txpower-in-EIRP-dom.patch
new file mode 100644 (file)
index 0000000..956ab83
--- /dev/null
+++ b/package/kernel/mac80211/patches/306-Revert-ath9k-interpret-requested-txpower-in-EIRP-dom.patch
@@ -0,0 +1,37 @@
+From: Felix Fietkau <nbd@nbd.name>
+Date: Sat, 14 May 2016 14:51:02 +0200
+Subject: [PATCH] Revert "ath9k: interpret requested txpower in EIRP
+ domain"
+
+This reverts commit 71f5137bf010c6faffab50c0ec15374c59c4a411.
+---
+
+--- a/drivers/net/wireless/ath/ath9k/hw.c
++++ b/drivers/net/wireless/ath/ath9k/hw.c
+@@ -2931,7 +2931,8 @@ void ath9k_hw_apply_txpower(struct ath_h
+ {
+       struct ath_regulatory *reg = ath9k_hw_regulatory(ah);
+       struct ieee80211_channel *channel;
+-      int chan_pwr, new_pwr;
++      int chan_pwr, new_pwr, max_gain;
++      int ant_gain, ant_reduction = 0;
+ 
+       if (!chan)
+               return;
+@@ -2939,10 +2940,15 @@ void ath9k_hw_apply_txpower(struct ath_h
+       channel = chan->chan;
+       chan_pwr = min_t(int, channel->max_power * 2, MAX_RATE_POWER);
+       new_pwr = min_t(int, chan_pwr, reg->power_limit);
++      max_gain = chan_pwr - new_pwr + channel->max_antenna_gain * 2;
++
++      ant_gain = get_antenna_gain(ah, chan);
++      if (ant_gain > max_gain)
++              ant_reduction = ant_gain - max_gain;
+ 
+       ah->eep_ops->set_txpower(ah, chan,
+                                ath9k_regd_get_ctl(reg, chan),
+-                               get_antenna_gain(ah, chan), new_pwr, test);
++                               ant_reduction, new_pwr, test);
+ }
+ 
+ void ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit, bool test)