From patchwork Sat Dec 11 16:31:30 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sean Wang X-Patchwork-Id: 523355 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 78038C433EF for ; Sat, 11 Dec 2021 16:31:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231402AbhLKQbl (ORCPT ); Sat, 11 Dec 2021 11:31:41 -0500 Received: from mailgw02.mediatek.com ([210.61.82.184]:53974 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S231395AbhLKQbl (ORCPT ); Sat, 11 Dec 2021 11:31:41 -0500 X-UUID: 067fca5ab1b241bb8bdc4356659bb27a-20211212 X-UUID: 067fca5ab1b241bb8bdc4356659bb27a-20211212 Received: from mtkcas11.mediatek.inc [(172.21.101.40)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 123356996; Sun, 12 Dec 2021 00:31:37 +0800 Received: from mtkcas10.mediatek.inc (172.21.101.39) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.792.3; Sun, 12 Dec 2021 00:31:35 +0800 Received: from mtkswgap22.mediatek.inc (172.21.77.33) by mtkcas10.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Sun, 12 Dec 2021 00:31:35 +0800 From: To: , CC: , , , , , , , , , , , , , , , , , , , , , , , , Subject: [PATCH 2/2] mt76: mt7921s: fix suspend error with enlarging mcu timeout value Date: Sun, 12 Dec 2021 00:31:30 +0800 Message-ID: <13f6e51cd22a8a18e8f14e1213c299805ce37e14.1639239996.git.objelf@gmail.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <87100999ebfd6e205e655a6355a3990ff89d3945.1639239996.git.objelf@gmail.com> References: <87100999ebfd6e205e655a6355a3990ff89d3945.1639239996.git.objelf@gmail.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Sean Wang Fix the false positive suspend error that may occur on mt7921s with enlarging mcu timeout value. The reason why we have to enlarge mcu timeout from HZ / 3 to HZ is we should consider the additional overhead caused by running concurrently with btmtksdio (a MT7921 bluetooth SDIO driver) that would compete for the same SDIO bus in process context to complete the suspend procedure. Fixes: 48fab5bbef40 ("mt76: mt7921: introduce mt7921s support") Signed-off-by: Sean Wang --- drivers/net/wireless/mediatek/mt76/mt7921/mcu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c index 1227d626e9d3..be87e134216b 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c @@ -239,7 +239,7 @@ int mt7921_mcu_fill_message(struct mt76_dev *mdev, struct sk_buff *skb, case MCU_UNI_CMD_HIF_CTRL: case MCU_UNI_CMD_SUSPEND: case MCU_UNI_CMD_OFFLOAD: - mdev->mcu.timeout = HZ / 3; + mdev->mcu.timeout = HZ; break; default: mdev->mcu.timeout = 3 * HZ;