From patchwork Fri Aug 23 14:36:53 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Leonard Crestez X-Patchwork-Id: 11111847 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 A5241112C for ; Fri, 23 Aug 2019 14:37:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8CD412339D for ; Fri, 23 Aug 2019 14:37:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389397AbfHWOhF (ORCPT ); Fri, 23 Aug 2019 10:37:05 -0400 Received: from inva021.nxp.com ([92.121.34.21]:48412 "EHLO inva021.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390787AbfHWOhF (ORCPT ); Fri, 23 Aug 2019 10:37:05 -0400 Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id D737A200741; Fri, 23 Aug 2019 16:37:02 +0200 (CEST) Received: from inva024.eu-rdc02.nxp.com (inva024.eu-rdc02.nxp.com [134.27.226.22]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id C86A920073F; Fri, 23 Aug 2019 16:37:02 +0200 (CEST) Received: from fsr-ub1864-112.ea.freescale.net (fsr-ub1864-112.ea.freescale.net [10.171.82.98]) by inva024.eu-rdc02.nxp.com (Postfix) with ESMTP id E792D205D9; Fri, 23 Aug 2019 16:37:01 +0200 (CEST) From: Leonard Crestez To: Georgi Djakov , Rob Herring , =?utf-8?b?QXJ0dXIgxZp3aWdvxYQ=?= , Chanwoo Choi Cc: Alexandre Bailon , Krzysztof Kozlowski , MyungJoo Ham , Kyungmin Park , Saravana Kannan , Mark Rutland , Viresh Kumar , Shawn Guo , Dong Aisheng , Fabio Estevam , Stephen Boyd , Michael Turquette , kernel@pengutronix.de, linux-imx@nxp.com, linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [RFCv4 0/7] interconnect: Add imx support via devfreq Date: Fri, 23 Aug 2019 17:36:53 +0300 Message-Id: X-Mailer: git-send-email 2.17.1 X-Virus-Scanned: ClamAV using ClamSMTP Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org This series add imx support for interconnect via devfreq: the ICC framework is used to aggregate requests from devices and then those are converted to DEV_PM_QOS_MIN_FREQUENCY requests for devfreq. The devfreq parts are posted separately, this series only intersects in devicetree: https://patchwork.kernel.org/cover/11104113/ Since there is no single devicetree node that can represent the "interconnect" new API is added to allow individual devfreq nodes to act as parsing proxies all mapping to a single soc-level icc provider. This is still RFC because this The rest of the changes are small and deal with review comments. Changes since RFCv3: * Remove the virtual "icc" node and add devfreq nodes as proxy providers * Fix build on 32-bit arm (reported by kbuilt test robot) * Remove ARCH_MXC_ARM64 (never existed in upstream) * Remove _numlinks, calculate instead * Replace __BUSFREQ_H header guard * Improve commit message and comment spelling * Fix checkpatch issues Link to RFCv3: https://patchwork.kernel.org/cover/11078671/ Changes since RFCv2 and initial work by Alexandre Bailon: * Relying on devfreq and dev_pm_qos instead of CLK * No more "platform opp" stuff * No more special suspend handling: use suspend-opp on devfreq instead. * Replace all mentions of "busfreq" with "interconnect" Link to v2: https://patchwork.kernel.org/patch/11056789/ Leonard Crestez (7): PM / devfreq: Add devfreq_get_devfreq_by_node interconnect: Add of_icc_add_proxy dt-bindings: devfreq: imx: Describe interconnect properties interconnect: Add imx core driver interconnect: imx: Add platform driver for imx8mm soc: imx8mm: Register interconnect platform device arm64: dts: imx8mm: Add interconnect properties .../devicetree/bindings/devfreq/imx-ddrc.yaml | 5 + .../devicetree/bindings/devfreq/imx.yaml | 5 + arch/arm64/boot/dts/freescale/imx8mm.dtsi | 5 + drivers/devfreq/devfreq.c | 42 ++- drivers/interconnect/Kconfig | 1 + drivers/interconnect/Makefile | 1 + drivers/interconnect/core.c | 88 +++++- drivers/interconnect/imx/Kconfig | 9 + drivers/interconnect/imx/Makefile | 2 + drivers/interconnect/imx/imx.c | 279 ++++++++++++++++++ drivers/interconnect/imx/imx.h | 60 ++++ drivers/interconnect/imx/imx8mm.c | 105 +++++++ drivers/soc/imx/soc-imx8.c | 4 + include/dt-bindings/interconnect/imx8mm.h | 49 +++ include/linux/devfreq.h | 1 + include/linux/interconnect-provider.h | 7 + 16 files changed, 645 insertions(+), 18 deletions(-) create mode 100644 drivers/interconnect/imx/Kconfig create mode 100644 drivers/interconnect/imx/Makefile create mode 100644 drivers/interconnect/imx/imx.c create mode 100644 drivers/interconnect/imx/imx.h create mode 100644 drivers/interconnect/imx/imx8mm.c create mode 100644 include/dt-bindings/interconnect/imx8mm.h