From mboxrd@z Thu Jan 1 00:00:00 1970 From: Henry Chen Subject: [RFC V2 01/11] dt-bindings: soc: Add dvfsrc driver bindings Date: Tue, 30 Apr 2019 16:50:55 +0800 Message-ID: <1556614265-12745-2-git-send-email-henryc.chen@mediatek.com> References: <1556614265-12745-1-git-send-email-henryc.chen@mediatek.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <1556614265-12745-1-git-send-email-henryc.chen@mediatek.com> Sender: linux-kernel-owner@vger.kernel.org To: Georgi Djakov , Rob Herring , Matthias Brugger , Viresh Kumar , Stephen Boyd Cc: Nicolas Boichat , Fan Chen , James Liao , Weiyi Lu , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, Henry Chen List-Id: devicetree@vger.kernel.org Document the binding for enabling dvfsrc on MediaTek SoC. Signed-off-by: Henry Chen --- .../devicetree/bindings/soc/mediatek/dvfsrc.txt | 23 ++++++++++++++++++++++ include/dt-bindings/soc/mtk,dvfsrc.h | 14 +++++++++++++ 2 files changed, 37 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/mediatek/dvfsrc.txt create mode 100644 include/dt-bindings/soc/mtk,dvfsrc.h diff --git a/Documentation/devicetree/bindings/soc/mediatek/dvfsrc.txt b/Documentation/devicetree/bindings/soc/mediatek/dvfsrc.txt new file mode 100644 index 0000000..7f43499 --- /dev/null +++ b/Documentation/devicetree/bindings/soc/mediatek/dvfsrc.txt @@ -0,0 +1,23 @@ +MediaTek DVFSRC + +The Dynamic Voltage and Frequency Scaling Resource Collector (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. + +Required Properties: +- compatible: Should be one of the following + - "mediatek,mt8183-dvfsrc": For MT8183 SoC +- reg: Address range of the DVFSRC unit +- clock-names: Must include the following entries: + "dvfsrc": DVFSRC module clock +- clocks: Must contain an entry for each entry in clock-names. + +Example: + + dvfsrc@10012000 { + compatible = "mediatek,mt8183-dvfsrc"; + reg = <0 0x10012000 0 0x1000>; + clocks = <&infracfg CLK_INFRA_DVFSRC>; + clock-names = "dvfsrc"; + }; diff --git a/include/dt-bindings/soc/mtk,dvfsrc.h b/include/dt-bindings/soc/mtk,dvfsrc.h new file mode 100644 index 0000000..a522488 --- /dev/null +++ b/include/dt-bindings/soc/mtk,dvfsrc.h @@ -0,0 +1,14 @@ +/* SPDX-License-Identifier: GPL-2.0 + * + * Copyright (c) 2018 MediaTek Inc. + */ + +#ifndef _DT_BINDINGS_POWER_MTK_DVFSRC_H +#define _DT_BINDINGS_POWER_MTK_DVFSRC_H + +#define MT8183_DVFSRC_LEVEL_1 1 +#define MT8183_DVFSRC_LEVEL_2 2 +#define MT8183_DVFSRC_LEVEL_3 3 +#define MT8183_DVFSRC_LEVEL_4 4 + +#endif /* _DT_BINDINGS_POWER_MTK_DVFSRC_H */ -- 1.9.1