From patchwork Thu Nov 24 08:12:16 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matt Ranostay X-Patchwork-Id: 13054676 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 07222C4332F for ; Thu, 24 Nov 2022 08:13:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229986AbiKXINq (ORCPT ); Thu, 24 Nov 2022 03:13:46 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57918 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229799AbiKXIM4 (ORCPT ); Thu, 24 Nov 2022 03:12:56 -0500 Received: from lelv0142.ext.ti.com (lelv0142.ext.ti.com [198.47.23.249]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AFD3714D2D; Thu, 24 Nov 2022 00:12:42 -0800 (PST) Received: from fllv0034.itg.ti.com ([10.64.40.246]) by lelv0142.ext.ti.com (8.15.2/8.15.2) with ESMTP id 2AO8CV0G024988; Thu, 24 Nov 2022 02:12:31 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1669277551; bh=Bq85rwF6GyuPw/B2OMdZPYclCJ+4v64WuSo4YBPhmBc=; h=From:To:CC:Subject:Date; b=kbO7rw7P0FjMjRFB/9vZxRpYBn2BXTq+IMKtgVrwGZmKFvJTtnscz38Wdic38amyD Ky1QoQivoUzayMROQwG/FQ3qTLmYnJDkqHeyaiUaWEvZg9H3XKXLJayvkEy715qNiT 97E90ZuvjbZJ8ZsMvl3edoi5PAIObgePsDaVjGkQ= Received: from DFLE107.ent.ti.com (dfle107.ent.ti.com [10.64.6.28]) by fllv0034.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 2AO8CUOr036607 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 24 Nov 2022 02:12:30 -0600 Received: from DFLE102.ent.ti.com (10.64.6.23) by DFLE107.ent.ti.com (10.64.6.28) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.16; Thu, 24 Nov 2022 02:12:30 -0600 Received: from lelv0327.itg.ti.com (10.180.67.183) by DFLE102.ent.ti.com (10.64.6.23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.16 via Frontend Transport; Thu, 24 Nov 2022 02:12:30 -0600 Received: from localhost (ileaxei01-snat2.itg.ti.com [10.180.69.6]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 2AO8CR8j063883; Thu, 24 Nov 2022 02:12:29 -0600 From: Matt Ranostay To: , , , , , , , , , , CC: , , , , Matt Ranostay Subject: [PATCH v7 0/5] PCI: add 4x lane support for pci-j721e controllers Date: Thu, 24 Nov 2022 00:12:16 -0800 Message-ID: <20221124081221.1206167-1-mranostay@ti.com> X-Mailer: git-send-email 2.38.GIT MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Adding of additional support to Cadence PCIe controller (i.e. pci-j721e.c) for up to 4x lanes, and reworking of driver to define maximum lanes per board configuration. Changes from v1: * Reworked 'PCI: j721e: Add PCIe 4x lane selection support' to not cause regressions on 1-2x lane platforms Changes from v2: * Correct dev_warn format string from %d to %u since lane count is a unsigned integer * Update CC list Changes from v3: * Use the max_lanes setting per chip for the mask size required since bootloader could have set num_lanes to a higher value that the device tree which would leave in an undefined state * Reorder patches do the previous change to not break bisect * Remove line breaking for dev_warn to allow better grepping and since no strict 80 columns anymore Changes from v4: * Correct invalid settings for j7200 PCIe RC + EP * Add j784s4 configuration for selection of 4x lanes Changes from v5: * Dropped 'PCI: j721e: Add warnings on num-lanes misconfiguration' patch from series * Reworded 'PCI: j721e: Add per platform maximum lane settings' commit message * Added yaml documentation and schema checks for ti,j721e-pci-* lane checking Changes from v6: * Fix wordwrapping in commit messages from ~65 columns to correct 75 columns * Re-ran get_maintainers.pl to add missing maintainers in CC Matt Ranostay (5): dt-bindings: PCI: ti,j721e-pci-*: add checks for num-lanes PCI: j721e: Add per platform maximum lane settings PCI: j721e: Add PCIe 4x lane selection support dt-bindings: PCI: ti,j721e-pci-*: add j784s4-pci-* compatible strings PCI: j721e: add j784s4 PCIe configuration .../bindings/pci/ti,j721e-pci-ep.yaml | 40 +++++++++++++++-- .../bindings/pci/ti,j721e-pci-host.yaml | 40 +++++++++++++++-- drivers/pci/controller/cadence/pci-j721e.c | 44 ++++++++++++++++--- 3 files changed, 113 insertions(+), 11 deletions(-)