From patchwork Mon Oct 15 08:08:57 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Honghui Zhang X-Patchwork-Id: 10641231 X-Patchwork-Delegate: bhelgaas@google.com 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 AC749157A for ; Mon, 15 Oct 2018 08:09:19 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9F30529443 for ; Mon, 15 Oct 2018 08:09:19 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9300029454; Mon, 15 Oct 2018 08:09:19 +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=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI,UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 39D9029443 for ; Mon, 15 Oct 2018 08:09:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726831AbeJOPx1 (ORCPT ); Mon, 15 Oct 2018 11:53:27 -0400 Received: from mailgw02.mediatek.com ([210.61.82.184]:37106 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1726744AbeJOPx0 (ORCPT ); Mon, 15 Oct 2018 11:53:26 -0400 X-UUID: 5cd56f996d28462fa018b6094a7a7a61-20181015 X-UUID: 5cd56f996d28462fa018b6094a7a7a61-20181015 Received: from mtkexhb02.mediatek.inc [(172.21.101.103)] by mailgw02.mediatek.com (envelope-from ) (mhqrelay.mediatek.com ESMTP with TLS) with ESMTP id 182358454; Mon, 15 Oct 2018 16:09:10 +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; Mon, 15 Oct 2018 16:09:09 +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, 15 Oct 2018 16:09:08 +0800 From: To: , , , , , , CC: , , , , , , , , , , Subject: [PATCH v8 6/9] PCI: mediatek: Fixup enable MSI logic by enable MSI after clock enabled Date: Mon, 15 Oct 2018 16:08:57 +0800 Message-ID: <1539590940-13355-7-git-send-email-honghui.zhang@mediatek.com> X-Mailer: git-send-email 2.6.4 In-Reply-To: <1539590940-13355-1-git-send-email-honghui.zhang@mediatek.com> References: <1539590940-13355-1-git-send-email-honghui.zhang@mediatek.com> MIME-Version: 1.0 X-MTK: N Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.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 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));