This is a note to let you know that I've just added the patch titled wifi: mt76: mt7915: rework mt7915_mcu_set_thermal_throttling to the 6.2-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: wifi-mt76-mt7915-rework-mt7915_mcu_set_thermal_throt.patch and it can be found in the queue-6.2 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 5d3d36f5460ba06eaa7d7cb744177f928f63a66e Author: Howard Hsu <howard-yh.hsu@xxxxxxxxxxxx> Date: Wed Dec 14 10:28:07 2022 +0800 wifi: mt76: mt7915: rework mt7915_mcu_set_thermal_throttling [ Upstream commit 5ad42d19f6596e54b091827c397fdb7c091d45f7 ] This patch includes 2 changes: 1. Firmware expects to disable thermal protect first before reconfiguring. 2. Separate setting thermal_protect and setting thermal_tx_duty into different functions. These two firmware commands do not need to send together. Fixes: 34b877d972be ("mt76: mt7915: add thermal cooling device support") Reviewed-by: Ryder Lee <ryder.lee@xxxxxxxxxxxx> Signed-off-by: Howard Hsu <howard-yh.hsu@xxxxxxxxxxxx> Signed-off-by: Felix Fietkau <nbd@xxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/init.c b/drivers/net/wireless/mediatek/mt76/mt7915/init.c index 41019ba24a048..4c351bfd4b270 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/init.c @@ -134,9 +134,6 @@ mt7915_thermal_set_cur_throttle_state(struct thermal_cooling_device *cdev, if (state > MT7915_CDEV_THROTTLE_MAX) return -EINVAL; - if (phy->throttle_temp[0] > phy->throttle_temp[1]) - return 0; - if (state == phy->cdev_state) return 0; diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/main.c b/drivers/net/wireless/mediatek/mt76/mt7915/main.c index 98af032eba097..7589af4b3dab7 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/main.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/main.c @@ -60,6 +60,11 @@ int mt7915_run(struct ieee80211_hw *hw) ret = mt7915_mcu_set_thermal_throttling(phy, MT7915_THERMAL_THROTTLE_MAX); + if (ret) + goto out; + + ret = mt7915_mcu_set_thermal_protect(phy); + if (ret) goto out; diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c index d9d6846ba8e02..a861312ba3ed1 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c @@ -3060,6 +3060,29 @@ int mt7915_mcu_get_temperature(struct mt7915_phy *phy) } int mt7915_mcu_set_thermal_throttling(struct mt7915_phy *phy, u8 state) +{ + struct mt7915_dev *dev = phy->dev; + struct mt7915_mcu_thermal_ctrl req = { + .band_idx = phy->mt76->band_idx, + .ctrl_id = THERMAL_PROTECT_DUTY_CONFIG, + }; + int level, ret; + + /* set duty cycle and level */ + for (level = 0; level < 4; level++) { + req.duty.duty_level = level; + req.duty.duty_cycle = state; + state /= 2; + + ret = mt76_mcu_send_msg(&dev->mt76, MCU_EXT_CMD(THERMAL_PROT), + &req, sizeof(req), false); + if (ret) + return ret; + } + return 0; +} + +int mt7915_mcu_set_thermal_protect(struct mt7915_phy *phy) { struct mt7915_dev *dev = phy->dev; struct { @@ -3072,29 +3095,18 @@ int mt7915_mcu_set_thermal_throttling(struct mt7915_phy *phy, u8 state) } __packed req = { .ctrl = { .band_idx = phy->mt76->band_idx, + .type.protect_type = 1, + .type.trigger_type = 1, }, }; - int level; - - if (!state) { - req.ctrl.ctrl_id = THERMAL_PROTECT_DISABLE; - goto out; - } - - /* set duty cycle and level */ - for (level = 0; level < 4; level++) { - int ret; + int ret; - req.ctrl.ctrl_id = THERMAL_PROTECT_DUTY_CONFIG; - req.ctrl.duty.duty_level = level; - req.ctrl.duty.duty_cycle = state; - state /= 2; + req.ctrl.ctrl_id = THERMAL_PROTECT_DISABLE; + ret = mt76_mcu_send_msg(&dev->mt76, MCU_EXT_CMD(THERMAL_PROT), + &req, sizeof(req.ctrl), false); - ret = mt76_mcu_send_msg(&dev->mt76, MCU_EXT_CMD(THERMAL_PROT), - &req, sizeof(req.ctrl), false); - if (ret) - return ret; - } + if (ret) + return ret; /* set high-temperature trigger threshold */ req.ctrl.ctrl_id = THERMAL_PROTECT_ENABLE; @@ -3103,10 +3115,6 @@ int mt7915_mcu_set_thermal_throttling(struct mt7915_phy *phy, u8 state) req.trigger_temp = cpu_to_le32(phy->throttle_temp[1]); req.sustain_time = cpu_to_le16(10); -out: - req.ctrl.type.protect_type = 1; - req.ctrl.type.trigger_type = 1; - return mt76_mcu_send_msg(&dev->mt76, MCU_EXT_CMD(THERMAL_PROT), &req, sizeof(req), false); } diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h b/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h index 6351feba6bdf9..855779f86bde0 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h @@ -543,6 +543,7 @@ int mt7915_mcu_apply_tx_dpd(struct mt7915_phy *phy); int mt7915_mcu_get_chan_mib_info(struct mt7915_phy *phy, bool chan_switch); int mt7915_mcu_get_temperature(struct mt7915_phy *phy); int mt7915_mcu_set_thermal_throttling(struct mt7915_phy *phy, u8 state); +int mt7915_mcu_set_thermal_protect(struct mt7915_phy *phy); int mt7915_mcu_get_rx_rate(struct mt7915_phy *phy, struct ieee80211_vif *vif, struct ieee80211_sta *sta, struct rate_info *rate); int mt7915_mcu_rdd_background_enable(struct mt7915_phy *phy,