From patchwork Thu Dec 21 02:11:17 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Honghui Zhang X-Patchwork-Id: 10126911 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 61D1C60388 for ; Thu, 21 Dec 2017 02:13:21 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 51158287F3 for ; Thu, 21 Dec 2017 02:13:21 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 45B5B2918A; Thu, 21 Dec 2017 02:13:21 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, RCVD_IN_DNSWL_MED, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id ED7D4287F3 for ; Thu, 21 Dec 2017 02:13:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=fBWHMUfD5fGrcki9Nc52F8zbZ99YDaChSKWeEN7Lr+s=; b=gec0I4nEvp5w54 qN51F5Rh5k70/j1HU5xRyH2qoM9qNRS/t/rA7/gtkWVZSPanyNqJb/2e196hEeHTC7wmxo9x4wSx/ 2y9MsYcEzo6zhITM7RLT+h2nfq4MGEXEoF76c5g9X/80yVWwFgkJnDzlVBDLtp835qktohWDmhCvw 4Tq1Olrud0ZjBpIVCYooHvVCTYDxpQLFpOZaVe9+jMTmKKrxLrDhjM8caX6M6bOCe98aQwldx3VvI QWs99oVTshwvd4uj3iDklCH9Ib0bf52x79LFVg09g05nw/A69SIqVD9g/EbdASK2j23WeCZaloBZJ gLTkdZq+lctdWzLW4XUw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.89 #1 (Red Hat Linux)) id 1eRqMG-0001En-5J; Thu, 21 Dec 2017 02:13:16 +0000 Received: from [210.61.82.184] (helo=mailgw02.mediatek.com) by bombadil.infradead.org with esmtps (Exim 4.89 #1 (Red Hat Linux)) id 1eRqKf-0000Ql-ML; Thu, 21 Dec 2017 02:11:39 +0000 X-UUID: d8c4fb3e2e7a4faf937f359f98c6b564-20171221 Received: from mtkcas07.mediatek.inc [(172.21.101.84)] by mailgw02.mediatek.com (envelope-from ) (mhqrelay.mediatek.com ESMTP with TLS) with ESMTP id 2046292182; Thu, 21 Dec 2017 10:11:23 +0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs01n1.mediatek.inc (172.21.101.68) with Microsoft SMTP Server (TLS) id 15.0.1210.3; Thu, 21 Dec 2017 10:11:22 +0800 Received: from localhost.localdomain (10.17.3.153) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1210.3 via Frontend Transport; Thu, 21 Dec 2017 10:11:21 +0800 From: To: , , , , , , , , , , Subject: [PATCH v2 2/2] PCI: mediatek: Fixup class type for MT7622 Date: Thu, 21 Dec 2017 10:11:17 +0800 Message-ID: <1513822277-18329-3-git-send-email-honghui.zhang@mediatek.com> X-Mailer: git-send-email 2.6.4 In-Reply-To: <1513822277-18329-1-git-send-email-honghui.zhang@mediatek.com> References: <1513822277-18329-1-git-send-email-honghui.zhang@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20171220_181137_905166_CA121A6A X-CRM114-Status: GOOD ( 10.92 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: youlin.pei@mediatek.com, hongkun.cao@mediatek.com, sean.wang@mediatek.com, xinping.qian@mediatek.com, honghui.zhang@mediatek.com, yt.shen@mediatek.com, yong.wu@mediatek.com Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: Honghui Zhang The host bridge of MT7622 has hardware code the class code to an arbitrary, meaningless value, fix that. Signed-off-by: Honghui Zhang --- drivers/pci/host/pcie-mediatek.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/pci/host/pcie-mediatek.c b/drivers/pci/host/pcie-mediatek.c index 3248771..ae8d367 100644 --- a/drivers/pci/host/pcie-mediatek.c +++ b/drivers/pci/host/pcie-mediatek.c @@ -1174,3 +1174,15 @@ static struct platform_driver mtk_pcie_driver = { }, }; builtin_platform_driver(mtk_pcie_driver); + +/* The host bridge of MT7622 advertises the wrong device class. */ +static void mtk_fixup_class(struct pci_dev *dev) +{ + dev->class = PCI_CLASS_BRIDGE_PCI << 8; +} + +/* + * The HW default value of vendor id and device id for mt7622 are 0x0e8d, + * 0x3258, which are arbitrary, meaningless values. + */ +DECLARE_PCI_FIXUP_EARLY(0x0e8d, 0x3258, mtk_fixup_class);