From patchwork Thu Sep 5 10:45:50 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vidya Sagar X-Patchwork-Id: 11132743 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 7BF6618A6 for ; Thu, 5 Sep 2019 10:46:55 +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 5974922CF5 for ; Thu, 5 Sep 2019 10:46:55 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="itQ5nyP2"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=nvidia.com header.i=@nvidia.com header.b="ClQTx7QX" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5974922CF5 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=nvidia.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.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=lDiCmsqEAzGeF2TyeIHs12yl4fNMZfnAusX8W8Nv+Pg=; b=itQ5nyP2VXyr6j MIBRPcPLDwiq0B3pzNvvy5n7Yx+OuBHYRDvdHmf2LPtya5uYE2cM9qLDC3sbpM18C/QvwbDKj4Z5V 0wu6fnOP5Y0cLObdC9vtj59bvt1DpMPQD7o4YZ3Jnn2lDWLNVv7v/uhyIi0VEVOJhAx2VCD06K5eA yT96iDn8oBgXTrSEvWeec2q7XiTMwZV9I3QwAwCC/RCLe4Bqr6sWd/qCtOZPzuNKHBMn+hW8WVpTH VchkmohPHUbxS9y+cAwoobhV7d12nxEJMzwPpbgeZpZTkneXCiDQqPSE/VxEYT8ZnWPB9uZVrr04v hrAI0HgN9mWc7VHE36qA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1i5pHu-0002xa-6H; Thu, 05 Sep 2019 10:46:50 +0000 Received: from hqemgate16.nvidia.com ([216.228.121.65]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1i5pHR-0002In-Bh for linux-arm-kernel@lists.infradead.org; Thu, 05 Sep 2019 10:46:22 +0000 Received: from hqpgpgate101.nvidia.com (Not Verified[216.228.121.13]) by hqemgate16.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id ; Thu, 05 Sep 2019 03:46:23 -0700 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate101.nvidia.com (PGP Universal service); Thu, 05 Sep 2019 03:46:20 -0700 X-PGP-Universal: processed; by hqpgpgate101.nvidia.com on Thu, 05 Sep 2019 03:46:20 -0700 Received: from HQMAIL111.nvidia.com (172.20.187.18) by HQMAIL105.nvidia.com (172.20.187.12) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Thu, 5 Sep 2019 10:46:20 +0000 Received: from hqnvemgw02.nvidia.com (172.16.227.111) by HQMAIL111.nvidia.com (172.20.187.18) with Microsoft SMTP Server (TLS) id 15.0.1473.3 via Frontend Transport; Thu, 5 Sep 2019 10:46:20 +0000 Received: from vidyas-desktop.nvidia.com (Not Verified[10.24.37.38]) by hqnvemgw02.nvidia.com with Trustwave SEG (v7, 5, 8, 10121) id ; Thu, 05 Sep 2019 03:46:20 -0700 From: Vidya Sagar To: , , , , , Subject: [PATCH V4 3/6] PCI: tegra: Add support to configure sideband pins Date: Thu, 5 Sep 2019 16:15:50 +0530 Message-ID: <20190905104553.2884-4-vidyas@nvidia.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190905104553.2884-1-vidyas@nvidia.com> References: <20190905104553.2884-1-vidyas@nvidia.com> X-NVConfidentiality: public MIME-Version: 1.0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1567680383; bh=Y7Wg10MnmbabLowy3sNUh3llEdHALkiyGZAdfNFIl8A=; h=X-PGP-Universal:From:To:CC:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:X-NVConfidentiality:MIME-Version: Content-Type; b=ClQTx7QXiJFd/OAOkaKhko6P6Wd+5OZSWkzqTnK6FXhXi0HU+PczvFxlrVvSBGyU/ Lsqw6fkjjaWVx6oG39Gu/dTWndrF61/suLn6vb7NO5qI7yKR5cBJwib93UbxwT+yN4 vf/2I4O8Uw38ov/u4+RxPjKGbmv0wlshYSO/jS+5bDICW5USrw/p3dIIrPq4OZZO8t 1Q95WHw5fVE2fI27tJHt+ND1BOZ03QHAKoTLwe95UdqmYx2e5EE25hJhT1h2CgUY5E MOEU6Lgbd7+M9bfQOH/qoiOPxcq/c/5TPPFDRv9UpbYAK99I5nMPO8AicgqkYxCa4n FPjlQbNUbfMrg== X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190905_034621_503689_CAA1A3A5 X-CRM114-Status: UNSURE ( 9.05 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -5.2 (-----) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-5.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at https://www.dnswl.org/, high trust [216.228.121.65 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.0 DKIMWL_WL_HIGH DKIMwl.org - Whitelisted High sender X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, mmaddireddy@nvidia.com, kthota@nvidia.com, gustavo.pimentel@synopsys.com, vidyas@nvidia.com, linux-kernel@vger.kernel.org, mperttunen@nvidia.com, linux-pci@vger.kernel.org, linux-tegra@vger.kernel.org, digetx@gmail.com, kishon@ti.com, linux-arm-kernel@lists.infradead.org, sagar.tv@gmail.com Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Add support to configure sideband signal pins when information is present in respective controller's device-tree node. Signed-off-by: Vidya Sagar Reviewed-by: Andrew Murray Acked-by: Thierry Reding --- V4: * None V3: * Used 'dev' instead of 'pcie->dev' V2: * Addressed review comment from Andrew Murray * Handled failure case of pinctrl_pm_select_default_state() cleanly drivers/pci/controller/dwc/pcie-tegra194.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/pci/controller/dwc/pcie-tegra194.c b/drivers/pci/controller/dwc/pcie-tegra194.c index db598beafd92..2048ef6fad90 100644 --- a/drivers/pci/controller/dwc/pcie-tegra194.c +++ b/drivers/pci/controller/dwc/pcie-tegra194.c @@ -1304,8 +1304,13 @@ static int tegra_pcie_config_rp(struct tegra_pcie_dw *pcie) if (ret < 0) { dev_err(dev, "Failed to get runtime sync for PCIe dev: %d\n", ret); - pm_runtime_disable(dev); - return ret; + goto fail_pm_get_sync; + } + + ret = pinctrl_pm_select_default_state(dev); + if (ret < 0) { + dev_err(dev, "Failed to configure sideband pins: %d\n", ret); + goto fail_pinctrl; } tegra_pcie_init_controller(pcie); @@ -1332,7 +1337,9 @@ static int tegra_pcie_config_rp(struct tegra_pcie_dw *pcie) fail_host_init: tegra_pcie_deinit_controller(pcie); +fail_pinctrl: pm_runtime_put_sync(dev); +fail_pm_get_sync: pm_runtime_disable(dev); return ret; }