From nobody Mon Feb 9 14:34:30 2026 Received: from mta-65-225.siemens.flowmailer.net (mta-65-225.siemens.flowmailer.net [185.136.65.225]) (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 E830B338920 for ; Mon, 5 Jan 2026 11:16:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.136.65.225 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767611801; cv=none; b=fVjEBxhPAg7QBAUgSB/ayLGsZWxRsCwZsLf/T/wExN6rjvtJ+MjgNasOFh1fdSGlK3jUGSRV/fY5Kbnm/eGpDVCX5G+B54iKR6zUWvqpcNz5TjOvvVz+O0KcEMN75p9tw/4EP11vFCKjRIM3aLUXhkBLEFSTX1TarHuRs40d/vs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767611801; c=relaxed/simple; bh=sYAc5sJMvWC9oDaPnHwBYuQePNcpLRGmQZH6K59uCWg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=fOWCUZJBhAs82GoNNmPWLjZVUt5CqtANYxdWPn4BpT0HNJY3eI6WU/SqctorhDEj0CFfxug6wTkXzoIW7CQVoegRMBcQ/hdLGdI5d7F6e+/oqwHuNG5YrQvxaxi5+tU7HFzE4mz9k+DEtQHXzig0Iqaw3IvadZYizpkr58vysNA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=siemens.com; spf=pass smtp.mailfrom=rts-flowmailer.siemens.com; dkim=pass (2048-bit key) header.d=siemens.com header.i=jan.kiszka@siemens.com header.b=Lc5u1S3S; arc=none smtp.client-ip=185.136.65.225 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=siemens.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=rts-flowmailer.siemens.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=siemens.com header.i=jan.kiszka@siemens.com header.b="Lc5u1S3S" Received: by mta-65-225.siemens.flowmailer.net with ESMTPSA id 20260105111630f0bc9ab00b00020724 for ; Mon, 05 Jan 2026 12:16:30 +0100 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; s=fm1; d=siemens.com; i=jan.kiszka@siemens.com; h=Date:From:Subject:To:Message-ID:MIME-Version:Content-Type:Content-Transfer-Encoding:Cc:References:In-Reply-To; bh=Y8UnCmSoxoSlYOsxJheKmv0QIG0V+9stYWQiOEAOZyg=; b=Lc5u1S3SZsy6DnmEZvJfBUMXUnw13TznibXwTKuYhZiwwnQ7xGYYyCGtooDnf7yK2IO0xC mIPzoEkgmL8q7Uc1fGiXsIHoruzaEIpVTMuh02LpmDGAVGycP9Xeuehqcp/B1yGsz17HJRAn tRKcZW5KMDpnovC00paTzBlv4mq03QdLeNISvV7lHmRMXCfmoT7Qh9kI1l56z0ttYZVO9xSX PL9eJTQCQmD6+cs7fA+lKM9h4scNYQ1sdyK+HUkRO1qJcohfndjY8X/AI+okQEFn8cnDoSuM LrqGCHhiKspFKq+akzeqmxMGlzWokMBzIvVJG8xKScYf4DmNWhCWrX1g==; From: Jan Kiszka To: stable@vger.kernel.org, Greg Kroah-Hartman , Felix Fietkau , Quan Zhou Cc: Sasha Levin , linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org Subject: [PATCH 6.12 1/3] wifi: mt76: mt7925: fix the unfinished command of regd_notifier before suspend Date: Mon, 5 Jan 2026 12:16:26 +0100 Message-ID: <9b06a0703d4a825b1db17f3213814ddc42644a5b.1767611788.git.jan.kiszka@siemens.com> In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Flowmailer-Platform: Siemens Feedback-ID: 519:519-294854:519-21489:flowmailer Content-Type: text/plain; charset="utf-8" From: Quan Zhou [ Upstream commit 1b97fc8443aea01922560de9f24a6383e6eb6ae8 ] Before entering suspend, we need to ensure that all MCU command are completed. In some cases, such as with regd_notifier, there is a chance that CLC commands, will be executed before suspend. Signed-off-by: Quan Zhou Link: https://patch.msgid.link/3af7b4e5bf7437832b016e32743657d1d55b1f9d.173= 5910288.git.quan.zhou@mediatek.com Signed-off-by: Felix Fietkau Signed-off-by: Jan Kiszka --- drivers/net/wireless/mediatek/mt76/mt7925/init.c | 4 ++++ drivers/net/wireless/mediatek/mt76/mt7925/pci.c | 3 +++ 2 files changed, 7 insertions(+) diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/init.c b/drivers/net= /wireless/mediatek/mt76/mt7925/init.c index 5123a720413f..3f48ae80aed4 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7925/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt7925/init.c @@ -81,11 +81,14 @@ mt7925_regd_notifier(struct wiphy *wiphy, mdev->region =3D req->dfs_region; dev->country_ie_env =3D req->country_ie_env; =20 + dev->regd_in_progress =3D true; mt792x_mutex_acquire(dev); mt7925_mcu_set_clc(dev, req->alpha2, req->country_ie_env); mt7925_mcu_set_channel_domain(hw->priv); mt7925_set_tx_sar_pwr(hw, NULL); mt792x_mutex_release(dev); + dev->regd_in_progress =3D false; + wake_up(&dev->wait); } =20 static void mt7925_mac_init_basic_rates(struct mt792x_dev *dev) @@ -235,6 +238,7 @@ int mt7925_register_device(struct mt792x_dev *dev) spin_lock_init(&dev->pm.wake.lock); mutex_init(&dev->pm.mutex); init_waitqueue_head(&dev->pm.wait); + init_waitqueue_head(&dev->wait); spin_lock_init(&dev->pm.txq_lock); INIT_DELAYED_WORK(&dev->mphy.mac_work, mt792x_mac_work); INIT_DELAYED_WORK(&dev->phy.scan_work, mt7925_scan_work); diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/pci.c b/drivers/net/= wireless/mediatek/mt76/mt7925/pci.c index 5e428f19f972..b4cc5607e0d6 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7925/pci.c +++ b/drivers/net/wireless/mediatek/mt76/mt7925/pci.c @@ -455,6 +455,9 @@ static int mt7925_pci_suspend(struct device *device) if (err < 0) goto restore_suspend; =20 + wait_event_timeout(dev->wait, + !dev->regd_in_progress, 5 * HZ); + /* always enable deep sleep during suspend to reduce * power consumption */ --=20 2.51.0