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=-9.0 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 3C71FC43381 for ; Mon, 25 Mar 2019 09:32:06 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0C6D92085A for ; Mon, 25 Mar 2019 09:32:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="mL/qvgH8"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="AdbEI2HH"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=ti.com header.i=@ti.com header.b="IoaIWNfL" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0C6D92085A Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=ti.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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=aK5Ypk3uEWieGcylx8jYUOMdQGWi20qo3e6Vgj4RIJQ=; b=mL/qvgH8Oh4U7A /lyp0CPJUKZzVBz6t9ajLBETjbMbsy7/Hp+9aAJcX7m+NwdboqGZBYDvbxr0f8AgoKGzQFM0Sfdqv Pf3fOE1BuyrQ5TwPMy8p0ChFKWrJyEqdcC8c+d388PUkx1T468+BBL7ETyr6OA15837NZI/KlCfIu Z+UOVQ2yBxQsZeMtIgXsUs1JDVE9Q6asGe9FxMGNbm4hdAI3j2QbupygeuTSOXIBYl83xuEBLsDAa E30nEqF+g5yFg1g/uJcHSfIimoOQk5xchs09aUEbDqOIt7rY/dJ5kymNlOiWDitvcnqPsLxkQb+xA S+upKun6sdOUrcRUBoPw==; 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 1h8LxV-0008PZ-Vw; Mon, 25 Mar 2019 09:31:58 +0000 Received: from merlin.infradead.org ([2001:8b0:10b:1231::1]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1h8Lwf-0007F8-9C for linux-arm-kernel@bombadil.infradead.org; Mon, 25 Mar 2019 09:31:05 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=merlin.20170209; h=Content-Type:MIME-Version:References: In-Reply-To:Message-ID:Date:Subject:CC:To:From:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=9+2eOM3oSY0oLj93leiipPk6vycQ1SmzvQwVGhiyl5g=; b=AdbEI2HHOAH3Hs/d7RmG4QiHY 88vsdpd+lCq0lAhUKDko6ia+o5v9Pw+YYtUxZb3w2gM4NlJC8Bjs0e67x6CP6B8njrMUcnnEibbmE w30iQoE4HlXUY9JgS27JDQ4MnUCg4p4RmZcKvtD3YqyOx4BZcdP68Sl0WfVLTCncB42368H04CIqJ AgJ4PuRoSeGiIFEvDvH19+VkZDry3n6DXi7SIKB5gJbDzN2uYLKnjchYS2FJJqoSIHY31kTIvhgm8 U0ZDH28XqyovXbSVQkS/4wP+9IDqHYU6lRb+phqA3L7jgWvqhaujTAz53HEYi2qIywqEHyLFkM6RS IZvYbt7Pw==; Received: from lelv0143.ext.ti.com ([198.47.23.248]) by merlin.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1h8L6X-0002db-FK for linux-arm-kernel@lists.infradead.org; Mon, 25 Mar 2019 08:37:14 +0000 Received: from lelv0266.itg.ti.com ([10.180.67.225]) by lelv0143.ext.ti.com (8.15.2/8.15.2) with ESMTP id x2P8b3qD030975; Mon, 25 Mar 2019 03:37:03 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1553503023; bh=9+2eOM3oSY0oLj93leiipPk6vycQ1SmzvQwVGhiyl5g=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=IoaIWNfLZqrC1CFmioiRHCzpk/z8u0zdxswV61Nh96AOAACivPQIpx8xiA7X6nTDF qRQct3PEzSXvTQEeG0iYrSfFZ8Nn0YEBY7rAVh1Z04udUbS5Hrtt/L1OSOPy5IsTBR 20pVXY5dnOVnkdkNNAWHj8bxAvRUdQttJU3cic+E= Received: from DFLE109.ent.ti.com (dfle109.ent.ti.com [10.64.6.30]) by lelv0266.itg.ti.com (8.15.2/8.15.2) with ESMTPS id x2P8b2I7053481 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 25 Mar 2019 03:37:03 -0500 Received: from DFLE111.ent.ti.com (10.64.6.32) by DFLE109.ent.ti.com (10.64.6.30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5; Mon, 25 Mar 2019 03:37:02 -0500 Received: from dlep33.itg.ti.com (157.170.170.75) by DFLE111.ent.ti.com (10.64.6.32) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.1.1713.5 via Frontend Transport; Mon, 25 Mar 2019 03:37:02 -0500 Received: from a0393678ub.india.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by dlep33.itg.ti.com (8.14.3/8.13.8) with ESMTP id x2P8ZsFv006534; Mon, 25 Mar 2019 03:36:58 -0500 From: Kishon Vijay Abraham I To: Gustavo Pimentel , Bjorn Helgaas , Rob Herring , Lorenzo Pieralisi , Arnd Bergmann , Murali Karicheri Subject: [PATCH v2 15/26] PCI: keystone: Invoke phy_reset API before enabling PHY Date: Mon, 25 Mar 2019 14:04:50 +0530 Message-ID: <20190325083501.8088-16-kishon@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190325083501.8088-1-kishon@ti.com> References: <20190325083501.8088-1-kishon@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190325_043713_637625_0C63F9B8 X-CRM114-Status: GOOD ( 13.14 ) 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: devicetree@vger.kernel.org, Greg Kroah-Hartman , Jingoo Han , linux-kernel@vger.kernel.org, linux-arm-kernel@axis.com, Kishon Vijay Abraham I , linux-pci@vger.kernel.org, linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org SERDES connected to the PCIe controller in AM654 requires power on reset enable (POR_EN) to be set in the SERDES. The SERDES driver sets POR_EN in the reset ops and it has to be invoked before init or enable ops. In order for SERDES driver to set POR_EN, invoke phy_reset API in pci-keystone driver. Signed-off-by: Kishon Vijay Abraham I --- drivers/pci/controller/dwc/pci-keystone.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/pci/controller/dwc/pci-keystone.c b/drivers/pci/controller/dwc/pci-keystone.c index a6a482bd648f..e4a816f53b8e 100644 --- a/drivers/pci/controller/dwc/pci-keystone.c +++ b/drivers/pci/controller/dwc/pci-keystone.c @@ -897,6 +897,10 @@ static int ks_pcie_enable_phy(struct keystone_pcie *ks_pcie) int num_lanes = ks_pcie->num_lanes; for (i = 0; i < num_lanes; i++) { + ret = phy_reset(ks_pcie->phy[i]); + if (ret < 0) + goto err_phy; + ret = phy_init(ks_pcie->phy[i]); if (ret < 0) goto err_phy; -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel