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wifi: mt76: mt7925: introduce thermal protection

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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>
This commit is contained in:
Leon Yen
2025-05-09 16:21:17 +08:00
committed by Felix Fietkau
parent 3c0e4f606d
commit 1d81e893b4
3 changed files with 26 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/net/wireless/mediatek/mt76/mt7925/init.c
View File

@@ -322,6 +322,12 @@ 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;

20
drivers/net/wireless/mediatek/mt76/mt7925/mcu.c
View File

@@ -974,6 +974,23 @@ 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;
@@ -3339,7 +3356,8 @@ 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;

1
drivers/net/wireless/mediatek/mt76/mt7925/mcu.h
View File

@@ -650,6 +650,7 @@ 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_link *mvif,