diff options
| author | Leon Yen <leon.yen@mediatek.com> | 2025-05-09 16:21:17 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-06-27 11:11:29 +0100 |
| commit | 84feb629fc10b4cf3114b90fc8ff2857616767d6 (patch) | |
| tree | 2e9aa63fdbd8030077a46347363e03fbf7565dc3 | |
| parent | 7f622bb3b5bc8073815de3900f82f206a13ba641 (diff) | |
wifi: mt76: mt7925: introduce thermal protection
[ Upstream commit 1d81e893b422a6f0ae70f8648867c2e73edfb413 ]
Add thermal protection to prevent the chip from possible overheating
due to prolonged high traffic and adverse operating conditions.
Signed-off-by: Leon Yen <leon.yen@mediatek.com>
Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com>
Link: https://patch.msgid.link/20250509082117.453819-1-mingyen.hsieh@mediatek.com
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7925/init.c | 6 | ||||
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7925/mcu.c | 20 | ||||
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7925/mcu.h | 1 |
3 files changed, 26 insertions, 1 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/init.c b/drivers/net/wireless/mediatek/mt76/mt7925/init.c index 039949b344b9..14553dcc61c5 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7925/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt7925/init.c @@ -204,6 +204,12 @@ static void mt7925_init_work(struct work_struct *work) return; } + ret = mt7925_mcu_set_thermal_protect(dev); + if (ret) { + dev_err(dev->mt76.dev, "thermal protection enable failed\n"); + return; + } + /* we support chip reset now */ dev->hw_init_done = true; diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c index a19c108ad4b5..57a1db394dda 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c @@ -961,6 +961,23 @@ int mt7925_mcu_set_deep_sleep(struct mt792x_dev *dev, bool enable) } EXPORT_SYMBOL_GPL(mt7925_mcu_set_deep_sleep); +int mt7925_mcu_set_thermal_protect(struct mt792x_dev *dev) +{ + char cmd[64]; + int ret = 0; + + snprintf(cmd, sizeof(cmd), "ThermalProtGband %d %d %d %d %d %d %d %d %d %d", + 0, 100, 90, 80, 30, 1, 1, 115, 105, 5); + ret = mt7925_mcu_chip_config(dev, cmd); + + snprintf(cmd, sizeof(cmd), "ThermalProtAband %d %d %d %d %d %d %d %d %d %d", + 1, 100, 90, 80, 30, 1, 1, 115, 105, 5); + ret |= mt7925_mcu_chip_config(dev, cmd); + + return ret; +} +EXPORT_SYMBOL_GPL(mt7925_mcu_set_thermal_protect); + int mt7925_run_firmware(struct mt792x_dev *dev) { int err; @@ -3288,7 +3305,8 @@ int mt7925_mcu_fill_message(struct mt76_dev *mdev, struct sk_buff *skb, else uni_txd->option = MCU_CMD_UNI_EXT_ACK; - if (cmd == MCU_UNI_CMD(HIF_CTRL)) + if (cmd == MCU_UNI_CMD(HIF_CTRL) || + cmd == MCU_UNI_CMD(CHIP_CONFIG)) uni_txd->option &= ~MCU_CMD_ACK; goto exit; diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/mcu.h b/drivers/net/wireless/mediatek/mt76/mt7925/mcu.h index 887427e0760a..780c5921679a 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7925/mcu.h +++ b/drivers/net/wireless/mediatek/mt76/mt7925/mcu.h @@ -635,6 +635,7 @@ int mt7925_mcu_add_bss_info(struct mt792x_phy *phy, int mt7925_mcu_set_timing(struct mt792x_phy *phy, struct ieee80211_bss_conf *link_conf); int mt7925_mcu_set_deep_sleep(struct mt792x_dev *dev, bool enable); +int mt7925_mcu_set_thermal_protect(struct mt792x_dev *dev); int mt7925_mcu_set_channel_domain(struct mt76_phy *phy); int mt7925_mcu_set_radio_en(struct mt792x_phy *phy, bool enable); int mt7925_mcu_set_chctx(struct mt76_phy *phy, struct mt76_vif *mvif, |