Received: by 2002:a25:8b12:0:0:0:0:0 with SMTP id i18csp1161211ybl; Wed, 28 Aug 2019 10:30:17 -0700 (PDT) X-Google-Smtp-Source: APXvYqzWhtqV+LDzDIZOF/60hWbPqvfVeehnaqmRXo0daApYgBbuZZwm5XpFaacGHwrrqD2Uv92r X-Received: by 2002:a63:62c6:: with SMTP id w189mr4415368pgb.312.1567013417561; Wed, 28 Aug 2019 10:30:17 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1567013417; cv=none; d=google.com; s=arc-20160816; b=UQpvtJtI2uVKd4p+EjfYPNcqv3ElnZ3u8LBJ9VeVAkzF+6Y6XCI/398AoAWbjP/owI 1QutA6/SNBphLNLZT+OMhA1ycM6ObhTlnu4BXXANVyxLMN1AoL0oRLB2+pSo7XO4pQtt W3TgpOWIuZLtVdWEYaj3m3P0HlkRnnJU0vzDgI9x/WQve2mS+hP7+yQVvuVJKCq5yxkc WN0Cvp4VAMBsPgW/OqkKNwmZIxb2fITkzbSHmxpQWSD7UNSFYvF6uE7zZ/wdrtsbO/0T dV2HSX9Gn5+dAMd+ZSIo8lUOcSuV+O52PDAG8H2upcEuJt8R4ybdxJXy9Rs39BriClKg JQBg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:message-id:date:subject:cc :to:from; bh=bs+9Xc3AXwUOZbRWDzlbF8JnMqSPLHoWAf1SASLG0YU=; b=cN9YKbpwhXnDO30UZXNHd0bPV9DNtXHwWxuGNgiK87CCsAMHfXNee7oMaUpXkTaRB4 4tI5LcNfVAc2FC15UMT8BQruB4gNCUxlUw4RAwD00A4E4F3UeGrfS5PsvnQaP7UtSsvt eKdtl6YvMluymQWzV4ShhSUzm3JFP+3IauKSoX0VDjuAl2cAgPahG+luOdxTFq7/GpqM zOCxow4ZMsF70wl2ZCr/AcUTqUXYM42xKFh6ajOXUZ91ObZ5YDNoBig8YMh8kMsP2bRm cdXnFH4k0O133qjLhrUV6Qrrx7weSNJbl8v/7R4Bs1XMgbW3PXqwM9NDEIE9Ywk6czrM CK9g== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=nvidia.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id y1si2313803plr.164.2019.08.28.10.30.01; Wed, 28 Aug 2019 10:30:17 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=nvidia.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726702AbfH1R27 (ORCPT + 99 others); Wed, 28 Aug 2019 13:28:59 -0400 Received: from hqemgate15.nvidia.com ([216.228.121.64]:7367 "EHLO hqemgate15.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726315AbfH1R27 (ORCPT ); Wed, 28 Aug 2019 13:28:59 -0400 Received: from hqpgpgate101.nvidia.com (Not Verified[216.228.121.13]) by hqemgate15.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id ; Wed, 28 Aug 2019 10:29:00 -0700 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate101.nvidia.com (PGP Universal service); Wed, 28 Aug 2019 10:28:58 -0700 X-PGP-Universal: processed; by hqpgpgate101.nvidia.com on Wed, 28 Aug 2019 10:28:58 -0700 Received: from HQMAIL110.nvidia.com (172.18.146.15) by HQMAIL111.nvidia.com (172.20.187.18) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Wed, 28 Aug 2019 17:28:58 +0000 Received: from HQMAIL107.nvidia.com (172.20.187.13) by hqmail110.nvidia.com (172.18.146.15) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Wed, 28 Aug 2019 17:28:58 +0000 Received: from hqnvemgw01.nvidia.com (172.20.150.20) by HQMAIL107.nvidia.com (172.20.187.13) with Microsoft SMTP Server (TLS) id 15.0.1473.3 via Frontend Transport; Wed, 28 Aug 2019 17:28:58 +0000 Received: from vidyas-desktop.nvidia.com (Not Verified[10.24.37.38]) by hqnvemgw01.nvidia.com with Trustwave SEG (v7,5,8,10121) id ; Wed, 28 Aug 2019 10:28:57 -0700 From: Vidya Sagar To: , , , , , CC: , , , , , , , , , , , , Subject: [PATCH V3 0/6] PCI: tegra: Enable PCIe C5 controller of Tegra194 in p2972-0000 platform Date: Wed, 28 Aug 2019 22:58:44 +0530 Message-ID: <20190828172850.19871-1-vidyas@nvidia.com> X-Mailer: git-send-email 2.17.1 X-NVConfidentiality: public MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch series enables Tegra194's C5 controller which owns x16 slot in p2972-0000 platform. C5 controller's PERST# and CLKREQ# are not configured as output and bi-directional signals by default and hence they need to be configured explicitly. Also, x16 slot's 3.3V and 12V supplies are controlled through GPIOs and hence they need to be enabled through regulator framework. This patch series adds required infrastructural support to address both the aforementioned requirements. Testing done on p2972-0000 platform - Able to enumerate devices connected to x16 slot (owned by C5 controller) - Enumerated device's functionality verified - Suspend-Resume sequence is verified with device connected to x16 slot DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1567013340; bh=TvQY7ZhhxcvoKbpcEAh6qHqIQEasISWH+/X/STdQQk0=; h=X-PGP-Universal:From:To:CC:Subject:Date:Message-ID:X-Mailer: X-NVConfidentiality:MIME-Version:Content-Type; b=gVtBiB2IR+pKYaZJQ+f6BYQX23e2leD7q8vdf+vr0+12GlPQc/30oFhIDgzGmLr3W 81mgV2Pp3bLNf9oNOB7tnv+yjoJK+qPGAB0bQ+VPMKGOkpvVfFtN4K3D+TkNjEQnQc eBs35Pzc7zQ3jso4y80hoeIGegqfu4qLvORCW3qsy7OuPxjELUpGKvJTozekRSZVw3 voa570Uvaiotu9UgYqdAyJe0S4iuNUmJ8eWJDZLb9zkj1gfWhuQaDxt6bOMK8pyr7e SVhNP0p2cTOaV0ALtd16tvi7+vRmcV4uQeArl0l1XPwxwHkR6ShLYbyji3Zb+JxJGN vrTsP917B385w== V3: * Addressed some more review comments from Andrew Murray and Thierry Reding V2: * Changed the order of patches in the series for easy merging * Addressed review comments from Thierry Reding and Andrew Murray Vidya Sagar (6): dt-bindings: PCI: tegra: Add sideband pins configuration entries dt-bindings: PCI: tegra: Add PCIe slot supplies regulator entries PCI: tegra: Add support to configure sideband pins PCI: tegra: Add support to enable slot regulators arm64: tegra: Add configuration for PCIe C5 sideband signals arm64: tegra: Add PCIe slot supply information in p2972-0000 platform .../bindings/pci/nvidia,tegra194-pcie.txt | 16 ++++ .../arm64/boot/dts/nvidia/tegra194-p2888.dtsi | 24 +++++ .../boot/dts/nvidia/tegra194-p2972-0000.dts | 4 +- arch/arm64/boot/dts/nvidia/tegra194.dtsi | 38 +++++++- drivers/pci/controller/dwc/pcie-tegra194.c | 94 ++++++++++++++++++- 5 files changed, 172 insertions(+), 4 deletions(-) -- 2.17.1