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=-3.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,UNPARSEABLE_RELAY,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 2A466C43444 for ; Wed, 2 Jan 2019 14:10:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 04231218CD for ; Wed, 2 Jan 2019 14:10:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729689AbfABOKr (ORCPT ); Wed, 2 Jan 2019 09:10:47 -0500 Received: from mailgw02.mediatek.com ([210.61.82.184]:39997 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1729498AbfABOKl (ORCPT ); Wed, 2 Jan 2019 09:10:41 -0500 X-UUID: 9b4dce0da76648e0a34fe008980aabd2-20190102 X-UUID: 9b4dce0da76648e0a34fe008980aabd2-20190102 Received: from mtkexhb01.mediatek.inc [(172.21.101.102)] by mailgw02.mediatek.com (envelope-from ) (mhqrelay.mediatek.com ESMTP with TLS) with ESMTP id 352485292; Wed, 02 Jan 2019 22:10:33 +0800 Received: from mtkcas09.mediatek.inc (172.21.101.178) by mtkmbs01n1.mediatek.inc (172.21.101.68) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Wed, 2 Jan 2019 22:10:26 +0800 Received: from mtkslt205.mediatek.inc (10.21.15.75) by mtkcas09.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Wed, 2 Jan 2019 22:10:26 +0800 From: Henry Chen To: Viresh Kumar , Stephen Boyd , "Rob Herring" , Matthias Brugger , "Ulf Hansson" CC: Mark Rutland , Fan Chen , Weiyi Lu , James Liao , Kees Cook , , , , , Subject: [RFC RESEND PATCH 0/7] Add driver for dvfsrc and add support for active state of scpsys on mt8183 Date: Wed, 2 Jan 2019 22:09:51 +0800 Message-ID: <1546438198-1677-1-git-send-email-henryc.chen@mediatek.com> X-Mailer: git-send-email 1.9.1 MIME-Version: 1.0 Content-Type: text/plain X-MTK: N Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The patchsets add support for MediaTek hardware module named DVFSRC (dynamic voltage and frequency scaling resource collector). The DVFSRC is a HW module which is used to collect all the requests from both software and hardware and turn into the decision of minimum operating voltage and minimum DRAM frequency to fulfill those requests. So, This series is to implement the dvfsrc driver to collect all the requests of operating voltage or DRAM bandwidth from other device drivers likes GPU/Camera through 2 frameworks basically: 1. PM_QOS_MEMORY_BANDWIDTH from PM QOS: to aggregate the bandwidth requirements from different clients 2. Active state management of power domains[1]: to handle the operating voltage opp requirement from different power domains [1] https://lwn.net/Articles/744047/ Henry Chen (7): dt-bindings: soc: Add DVFSRC driver bindings dt-bindings: soc: Add opp table on scpsys bindings soc: mediatek: add support for the performance state arm64: dts: mt8183: add performance state support of scpsys soc: mediatek: add header for mediatek SIP interface soc: mediatek: add MT8183 dvfsrc support arm64: dts: mt8183: add dvfsrc related nodes Documentation/devicetree/bindings/opp/mtk-opp.txt | 24 ++ .../devicetree/bindings/soc/mediatek/dvfsrc.txt | 26 ++ .../devicetree/bindings/soc/mediatek/scpsys.txt | 42 ++ arch/arm64/boot/dts/mediatek/mt8183.dtsi | 29 ++ drivers/soc/mediatek/Kconfig | 15 + drivers/soc/mediatek/Makefile | 1 + drivers/soc/mediatek/mtk-dvfsrc.c | 473 +++++++++++++++++++++ drivers/soc/mediatek/mtk-scpsys.c | 60 +++ drivers/soc/mediatek/mtk-scpsys.h | 22 + include/dt-bindings/soc/mtk,dvfsrc.h | 18 + include/soc/mediatek/mtk_sip.h | 17 + 11 files changed, 727 insertions(+) create mode 100644 Documentation/devicetree/bindings/opp/mtk-opp.txt create mode 100644 Documentation/devicetree/bindings/soc/mediatek/dvfsrc.txt create mode 100644 drivers/soc/mediatek/mtk-dvfsrc.c create mode 100644 drivers/soc/mediatek/mtk-scpsys.h create mode 100644 include/dt-bindings/soc/mtk,dvfsrc.h create mode 100644 include/soc/mediatek/mtk_sip.h -- 1.9.1