[PATCH] wifi: mt76: mt7921: fix wrong power after multiple SAR set

Deren Wu Deren.Wu at mediatek.com
Wed Nov 16 06:43:02 PST 2022


From: YN Chen <YN.Chen at mediatek.com>

We should update CLC config before SAR set to synchronize all
related settings.

Fixes: 23bdc5d8cadf ("wifi: mt76: mt7921: introduce Country Location Control support")
Signed-off-by: YN Chen <YN.Chen at mediatek.com>
Signed-off-by: Deren Wu <deren.wu at mediatek.com>
---
 drivers/net/wireless/mediatek/mt76/mt7921/init.c   | 1 +
 drivers/net/wireless/mediatek/mt76/mt7921/main.c   | 6 ++++++
 drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h | 2 ++
 3 files changed, 9 insertions(+)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/init.c b/drivers/net/wireless/mediatek/mt76/mt7921/init.c
index 79b8055ce4c4..3abda4fbe5fb 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/init.c
@@ -59,6 +59,7 @@ mt7921_regd_notifier(struct wiphy *wiphy,
 
 	memcpy(dev->mt76.alpha2, request->alpha2, sizeof(dev->mt76.alpha2));
 	dev->mt76.region = request->dfs_region;
+	dev->country_ie_env  = request->country_ie_env;
 
 	mt7921_mutex_acquire(dev);
 	mt7921_mcu_set_clc(dev, request->alpha2, request->country_ie_env);
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/main.c b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
index 41df17efdb3a..76ac5069638f 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
@@ -1615,7 +1615,13 @@ static int mt7921_set_sar_specs(struct ieee80211_hw *hw,
 	int err;
 
 	mt7921_mutex_acquire(dev);
+	err = mt7921_mcu_set_clc(dev, dev->mt76.alpha2,
+				 dev->country_ie_env);
+	if (err < 0)
+		goto out;
+
 	err = mt7921_set_tx_sar_pwr(hw, sar);
+out:
 	mt7921_mutex_release(dev);
 
 	return err;
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h b/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
index ac70a978dbed..2398c6fd0b39 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
@@ -304,6 +304,8 @@ struct mt7921_dev {
 	struct work_struct ipv6_ns_work;
 	/* IPv6 addresses for WoWLAN */
 	struct sk_buff_head ipv6_ns_list;
+
+	enum environment_cap country_ie_env;
 };
 
 enum {
-- 
2.18.0




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