From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 41E5E70838; Mon, 23 Jun 2025 21:11:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750713084; cv=none; b=keT9xNiAMRgsziCvlo7Exoes9VSrWDiOwnzyVv2YxAFMwsxc9aNNOYOYdDSe3ldPZGuV3kTPw5Zmew2NWq8qdD1CGc58g2N8sJ0NVSbpjgbWL/J74QbBZbuyWkH8w7usQrc+E0C0vTM1jrJIN1E0g4+pJ8MPAYkrM1DqFnj2hh0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750713084; c=relaxed/simple; bh=ni9v78wsF9O+3IzgmHLUtec4IA04nLcu5COzmfmejLk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=FpRfXpXLbhTpO49ut+JQ207RqBzNFCrVbgoVlDAAStRpMYMiwJJHwHvV+rlGV3hi/+wu8WhnHCVf5ybniH1S4wMYsA7Y7dJjGHQLpRpEXXkwZLcoZnkiRjFieqFwhkGke/qXcKw2pd+GVmkYZSIwhEE1lnfl4dM4ZnQ7PMwCdNY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=2lmENYKC; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="2lmENYKC" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CCA72C4CEEA; Mon, 23 Jun 2025 21:11:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1750713084; bh=ni9v78wsF9O+3IzgmHLUtec4IA04nLcu5COzmfmejLk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=2lmENYKCk484/8F2zxbdjzXwzsxUHQyvFFM4FM5BvOHAe92PfqfffMgsH/ehbJr1f DZUBvVQ9oay6MR0TbY2ZEFDz1gH0dqYrCNKl/hgsg046lW3hK2J5SiIJDTIS9B+W+A PhkmG3LTRa603EjRy7sThrmZ2/1v+wmi+SwjZ+9w= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Leon Yen , Ming Yen Hsieh , Felix Fietkau , Sasha Levin Subject: [PATCH 6.15 327/592] wifi: mt76: mt7925: introduce thermal protection Date: Mon, 23 Jun 2025 15:04:45 +0200 Message-ID: <20250623130708.233629011@linuxfoundation.org> X-Mailer: git-send-email 2.50.0 In-Reply-To: <20250623130700.210182694@linuxfoundation.org> References: <20250623130700.210182694@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Leon Yen [ 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 Signed-off-by: Ming Yen Hsieh Link: https://patch.msgid.link/20250509082117.453819-1-mingyen.hsieh@mediatek.com Signed-off-by: Felix Fietkau Signed-off-by: Sasha Levin --- .../net/wireless/mediatek/mt76/mt7925/init.c | 6 ++++++ .../net/wireless/mediatek/mt76/mt7925/mcu.c | 20 ++++++++++++++++++- .../net/wireless/mediatek/mt76/mt7925/mcu.h | 1 + 3 files changed, 26 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/init.c b/drivers/net/wireless/mediatek/mt76/mt7925/init.c index 79639be0d29ac..2a83ff59a968c 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7925/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt7925/init.c @@ -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; diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c index dea5b9bcb3fdf..7d96b88cff803 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c @@ -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; @@ -3306,7 +3323,8 @@ 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 8ac43feb26d64..a855a45135028 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7925/mcu.h +++ b/drivers/net/wireless/mediatek/mt76/mt7925/mcu.h @@ -637,6 +637,7 @@ 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, -- 2.39.5