From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B40C4C4646E for ; Wed, 12 May 2021 18:57:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9912D61352 for ; Wed, 12 May 2021 18:57:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1376816AbhELSzo (ORCPT ); Wed, 12 May 2021 14:55:44 -0400 Received: from mail.kernel.org ([198.145.29.99]:36858 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244173AbhELQmj (ORCPT ); Wed, 12 May 2021 12:42:39 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id CB12161C7D; Wed, 12 May 2021 16:11:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1620835876; bh=TQ/AY50QtrSFMmbljmlljoZK0wNPuo/Aa8Uuz3GUWWM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=NkGvbwaYIASqWORPtRrBflX7ANRSpkPCh5afILNOWo5le0McSo2JiqyVEZawE5/HG gBlXyo/5qTyC9UqgmYiJ0b4uZ42H6knkh2owFqpgPSv8WBLGwnk+EzMKKSiDJK3Wvg 8zddUAKBx2UsNRwW5dVP7XjvzqQlb6j92DsdnwT0= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Sean Wang , Lorenzo Bianconi , Felix Fietkau , Sasha Levin Subject: [PATCH 5.12 519/677] mt76: mt7921: fix suspend/resume sequence Date: Wed, 12 May 2021 16:49:25 +0200 Message-Id: <20210512144854.626603408@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210512144837.204217980@linuxfoundation.org> References: <20210512144837.204217980@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Sean Wang [ Upstream commit 5e30931494b4940ba74fa5796ca0b6d7e4c84e88 ] Any pcie access should happen in pci D0 state and we should give ownership back to the device at the end of the suspend procedure. Fixes: 1d8efc741df80 ("mt76: mt7921: introduce Runtime PM support") Signed-off-by: Sean Wang Signed-off-by: Lorenzo Bianconi Signed-off-by: Felix Fietkau Signed-off-by: Sasha Levin --- drivers/net/wireless/mediatek/mt76/mt7921/pci.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/pci.c b/drivers/net/wireless/mediatek/mt76/mt7921/pci.c index 5570b4a50531..c747022f7642 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/pci.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/pci.c @@ -209,12 +209,12 @@ static int mt7921_pci_suspend(struct pci_dev *pdev, pm_message_t state) /* disable interrupt */ mt76_wr(dev, MT_WFDMA0_HOST_INT_ENA, 0); - pci_save_state(pdev); - err = pci_set_power_state(pdev, pci_choose_state(pdev, state)); + err = mt7921_mcu_fw_pmctrl(dev); if (err) goto restore; - err = mt7921_mcu_drv_pmctrl(dev); + pci_save_state(pdev); + err = pci_set_power_state(pdev, pci_choose_state(pdev, state)); if (err) goto restore; @@ -237,16 +237,16 @@ static int mt7921_pci_resume(struct pci_dev *pdev) struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76); int i, err; - err = mt7921_mcu_fw_pmctrl(dev); - if (err < 0) - return err; - err = pci_set_power_state(pdev, PCI_D0); if (err) return err; pci_restore_state(pdev); + err = mt7921_mcu_drv_pmctrl(dev); + if (err < 0) + return err; + /* enable interrupt */ mt7921_l1_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0xff); mt7921_irq_enable(dev, MT_INT_RX_DONE_ALL | MT_INT_TX_DONE_ALL | -- 2.30.2