From patchwork Fri Dec 22 08:53:38 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mingyen Hsieh X-Patchwork-Id: 13503101 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 74F1EC4706E for ; Fri, 22 Dec 2023 08:54:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type:MIME-Version: References:In-Reply-To:Message-ID:Date:Subject:CC:To:From:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=G903a+rUPsDraNi3izuk1MYUFsGK+bZ2eCu8WQaAmhc=; b=e8aG+7HoBMBvKbDJWFSWXYj4XN irV8G/AAG+Mz2mZDiMvbgaJGH3nNd1KVkVyUXHk+2Ecb0kFahO+uhhUngI9UPQAPpGHGjvv5I8Toy LQ74Vct96cyYJ+vLcJu/dVaXPhPKyO45MhkmBR2/58tdXbZtZKPOtJeTpb26FGy44NaxhxMeg2jIN 95gKshDVz0PqLF434Cb4ciRwfduqIppBhJ74cNistRXm+O5laM+JsFcWVSVtLkwx0PQD381zzSw70 9BA7Wr8JTi5RyOfGnRUJ5tR5kGeRF54Q9/sq9jSk8/wx/u+BIuQya9gMxbpJ+GvEMIQceukvypUof ZGuaGp4g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rGbIf-005Msw-1C; Fri, 22 Dec 2023 08:54:33 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1rGbIb-005MrZ-1P for linux-mediatek@lists.infradead.org; Fri, 22 Dec 2023 08:54:30 +0000 X-UUID: b412ff92a0a711ee9b09ad09c76753c8-20231222 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=G903a+rUPsDraNi3izuk1MYUFsGK+bZ2eCu8WQaAmhc=; b=DUs5d+unO7N9INw9ANe+qVV2oiBRqI60eN4BEA3KqrdQfnmOFXMLvVW9o8PqcqsoUg5rJTHjzxTWow6gv+ahJBZCWQuiN9Da2ZEFDMLfejONmOaDXQBlYSJ+yZLaVe/IX4iaTu60rgYTbnvvs5tuviQwZMoV8qeP1rXLxJP40h0=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.35,REQID:4fb4fa48-3548-4da4-a4ac-d6e415612bdb,IP:0,U RL:0,TC:0,Content:0,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION: release,TS:0 X-CID-META: VersionHash:5d391d7,CLOUDID:0b6f0f82-8d4f-477b-89d2-1e3bdbef96d1,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:-3,IP:nil,U RL:0,File:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0,LES:1,SPR:NO, DKR:0,DKP:0,BRR:0,BRE:0 X-CID-BVR: 0,NGT X-CID-BAS: 0,NGT,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR X-UUID: b412ff92a0a711ee9b09ad09c76753c8-20231222 Received: from mtkmbs14n1.mediatek.inc [(172.21.101.75)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 2114635672; Fri, 22 Dec 2023 01:54:23 -0700 Received: from mtkmbs11n2.mediatek.inc (172.21.101.187) by mtkmbs11n1.mediatek.inc (172.21.101.185) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Fri, 22 Dec 2023 16:53:46 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs11n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Fri, 22 Dec 2023 16:53:46 +0800 From: Mingyen Hsieh To: , CC: , , , , , , , , , , , , , , Ming Yen Hsieh , Leon Yen Subject: [PATCH v1 4/4] wifi: mt76: mt7921: fix the unfinished command of regd_notifier before suspend Date: Fri, 22 Dec 2023 16:53:38 +0800 Message-ID: <20231222085338.4530-5-mingyen.hsieh@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20231222085338.4530-1-mingyen.hsieh@mediatek.com> References: <20231222085338.4530-1-mingyen.hsieh@mediatek.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231222_005429_478962_FBCFDCBC X-CRM114-Status: GOOD ( 10.50 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org From: Ming Yen Hsieh 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: Ming Yen Hsieh Signed-off-by: Leon Yen --- drivers/net/wireless/mediatek/mt76/mt7921/init.c | 6 ++++++ drivers/net/wireless/mediatek/mt76/mt7921/pci.c | 3 +++ drivers/net/wireless/mediatek/mt76/mt792x.h | 2 ++ 3 files changed, 11 insertions(+) diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/init.c b/drivers/net/wireless/mediatek/mt76/mt7921/init.c index 48433c6d5e7d..bb2abf341c68 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/init.c @@ -138,9 +138,14 @@ mt7921_regd_notifier(struct wiphy *wiphy, if (pm->suspended) return; + dev->regd_in_progress = true; + mt792x_mutex_acquire(dev); mt7921_regd_update(dev); mt792x_mutex_release(dev); + + dev->regd_in_progress = true; + wake_up(&dev->wait); } int mt7921_mac_init(struct mt792x_dev *dev) @@ -261,6 +266,7 @@ int mt7921_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); if (mt76_is_sdio(&dev->mt76)) init_waitqueue_head(&dev->mt76.sdio.wait); spin_lock_init(&dev->pm.txq_lock); diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/pci.c b/drivers/net/wireless/mediatek/mt76/mt7921/pci.c index 57903c6e4f11..8b226b731ec9 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/pci.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/pci.c @@ -409,6 +409,9 @@ static int mt7921_pci_suspend(struct device *device) if (err < 0) goto restore_suspend; + wait_event_timeout(dev->wait, + !dev->regd_in_progress, 5 * HZ); + err = mt76_connac_mcu_set_hif_suspend(mdev, true); if (err) goto restore_suspend; diff --git a/drivers/net/wireless/mediatek/mt76/mt792x.h b/drivers/net/wireless/mediatek/mt76/mt792x.h index 3c897b34aaa7..a8556de3d480 100644 --- a/drivers/net/wireless/mediatek/mt76/mt792x.h +++ b/drivers/net/wireless/mediatek/mt76/mt792x.h @@ -186,6 +186,8 @@ struct mt792x_dev { bool hw_init_done:1; bool fw_assert:1; bool has_eht:1; + bool regd_in_progress:1; + wait_queue_head_t wait; struct work_struct init_work;