From patchwork Tue Oct 16 10:44:47 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Honghui Zhang X-Patchwork-Id: 10643399 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id DB24913B0 for ; Tue, 16 Oct 2018 10:48:07 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C8AE22982C for ; Tue, 16 Oct 2018 10:48:07 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id BBD6B29833; Tue, 16 Oct 2018 10:48:07 +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=-2.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE,UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 3A1522982C for ; Tue, 16 Oct 2018 10:48:07 +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=9WdvFtq/wz/h0EQ9zaehpwfJeycukuRmyX5fevE2UQ0=; b=EktxSm4V0sODkC sRhto8Bh5sEUjYuHS1mKdx92aTyqG0f5/eZ8wom+pezci4Zk10Ks6R/UU4BEWzDntOf3DU2/jWw36 PetNxri5/cAT+fNg23oQtI3JDtd7voS2mtc8USz/2Og024WxaGygKIR/EztMfdfQYN0Lni8ZO98AH bLALsORzeZ0MaiNn30uh4KK2XEh8tZlH/KT6CjndjcZclKmY1ghvSapyW6wb+75Ap7TuwQ4dyJt2H VRaXth5k46wXiaV6SYHAs/iz9LazUhrdplLc85uFNEOgsqahtFbaQf4INQstfkf8jHNHHzHz2JGAB dtWzy03i2sku+WeNee5g==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gCMtF-00010n-MT; Tue, 16 Oct 2018 10:47:53 +0000 Received: from [210.61.82.184] (helo=mailgw02.mediatek.com) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1gCMqj-00070H-Dr; Tue, 16 Oct 2018 10:45:20 +0000 X-UUID: 19b2a88564fc4911b0f23efd0632d4be-20181016 X-UUID: 19b2a88564fc4911b0f23efd0632d4be-20181016 Received: from mtkcas08.mediatek.inc [(172.21.101.126)] by mailgw02.mediatek.com (envelope-from ) (mhqrelay.mediatek.com ESMTP with TLS) with ESMTP id 1573313564; Tue, 16 Oct 2018 18:45:06 +0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs08n1.mediatek.inc (172.21.101.55) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Tue, 16 Oct 2018 18:45:04 +0800 Received: from localhost.localdomain (10.17.3.153) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Tue, 16 Oct 2018 18:44:57 +0800 From: To: , , , , , , Subject: [PATCH v9 6/9] PCI: mediatek: Fixup enable MSI logic by enable MSI after clock enabled Date: Tue, 16 Oct 2018 18:44:47 +0800 Message-ID: <1539686690-24068-7-git-send-email-honghui.zhang@mediatek.com> X-Mailer: git-send-email 2.6.4 In-Reply-To: <1539686690-24068-1-git-send-email-honghui.zhang@mediatek.com> References: <1539686690-24068-1-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-20181016_034517_634559_22B72BF3 X-CRM114-Status: GOOD ( 12.01 ) 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, devicetree@vger.kernel.org, ulf.hansson@linaro.org, marc.zyngier@arm.com, jianjun.wang@mediatek.com, yt.shen@mediatek.com, honghui.zhang@mediatek.com, matthias.bgg@gmail.com, yingjoe.chen@mediatek.com, eddie.huang@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 commit 43e6409db64d ("PCI: mediatek: Add MSI support for MT2712 and MT7622") added MSI support but enable MSI in wrong place, clocks was not enabled when enable MSI. This patch fix this issue by calling mtk_pcie_enable_msi in mtk_pcie_startup_port_v2 since the clock was all enabled at that time. Fixes: 43e6409db64d ("PCI: mediatek: Add MSI support for MT2712 and MT7622") Signed-off-by: Honghui Zhang Acked-by: Ryder Lee --- drivers/pci/controller/pcie-mediatek.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/pci/controller/pcie-mediatek.c b/drivers/pci/controller/pcie-mediatek.c index 6967bb7..82d3d85 100644 --- a/drivers/pci/controller/pcie-mediatek.c +++ b/drivers/pci/controller/pcie-mediatek.c @@ -568,8 +568,6 @@ static int mtk_pcie_init_irq_domain(struct mtk_pcie_port *port, ret = mtk_pcie_allocate_msi_domains(port); if (ret) return ret; - - mtk_pcie_enable_msi(port); } return 0; @@ -690,6 +688,9 @@ static int mtk_pcie_startup_port_v2(struct mtk_pcie_port *port) val &= ~INTX_MASK; writel(val, port->base + PCIE_INT_MASK); + if (IS_ENABLED(CONFIG_PCI_MSI)) + mtk_pcie_enable_msi(port); + /* Set AHB to PCIe translation windows */ size = mem->end - mem->start; val = lower_32_bits(mem->start) | AHB2PCIE_SIZE(fls(size));