From patchwork Mon Oct 8 03:24:45 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Honghui Zhang X-Patchwork-Id: 10629935 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 3EF0914DB for ; Mon, 8 Oct 2018 03:31:41 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2C77928C59 for ; Mon, 8 Oct 2018 03:31:41 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 200E528D0A; Mon, 8 Oct 2018 03:31:41 +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 A5F0828C59 for ; Mon, 8 Oct 2018 03:31:40 +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=uWKBzBLto+DS5nUphUKEixqoJ9nJU7Dzq0SIf1D92cQ=; b=mvFyvlgWgxefUR YEuk+lwjDEVU/DeDWSUqGOBUvXlvk/gmyoE7+ZxGzr+bWk+O+QetA0hDNVFYZM7WNQ40tpKClltmI b8/caI//yK9uHEu46AujCQJlv9uiRHnAD9ybTMqhwSnnk5uWpPrGpbbZopgD/IsBuzERi8/z/32Wb JxT5R12fBAFbdRpIf6VO0GAckptKVjLAopOl+gkxeevhBRAlnPx/v9Ia3oG+81syofqFVoo3HBB1J jYSq9LizdKINS+lR8vFddTw+PDsQQjHM/teYoaYvj0RbKVncKS2kte6I4vy2u3egXLHqy+d7ZnX5U +vKLARsFAPcIE46TiGHw==; 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 1g9MGZ-0007NX-69; Mon, 08 Oct 2018 03:31:31 +0000 Received: from [210.61.82.183] (helo=mailgw01.mediatek.com) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1g9MAo-00039W-S5; Mon, 08 Oct 2018 03:25:49 +0000 X-UUID: cfbfdb52f32a45769458be1293c0586d-20181008 X-UUID: cfbfdb52f32a45769458be1293c0586d-20181008 Received: from mtkcas08.mediatek.inc [(172.21.101.126)] by mailgw01.mediatek.com (envelope-from ) (mhqrelay.mediatek.com ESMTP with TLS) with ESMTP id 348596383; Mon, 08 Oct 2018 11:25:05 +0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs01n2.mediatek.inc (172.21.101.79) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Mon, 8 Oct 2018 11:25:04 +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; Mon, 8 Oct 2018 11:25:03 +0800 From: To: , , , , , , Subject: [PATCH v6 6/9] PCI: mediatek: Fixup enable msi logic by enable msi after clock enabled Date: Mon, 8 Oct 2018 11:24:45 +0800 Message-ID: <1538969088-7136-7-git-send-email-honghui.zhang@mediatek.com> X-Mailer: git-send-email 2.6.4 In-Reply-To: <1538969088-7136-1-git-send-email-honghui.zhang@mediatek.com> References: <1538969088-7136-1-git-send-email-honghui.zhang@mediatek.com> MIME-Version: 1.0 X-TM-SNTS-SMTP: 27C4FDAA8AFF7CAFDB39BEAF31B8E2F43DCC232D8DEB571A7C2EA7A6D481EC6F2000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20181007_202535_084500_D336D8E7 X-CRM114-Status: GOOD ( 10.18 ) 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, sean.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. 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 654a63e..d3f4694 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));