From patchwork Fri Jun 4 10:29:48 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dawei Chien X-Patchwork-Id: 454435 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=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, UNPARSEABLE_RELAY, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable 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 3F53FC4708F for ; Fri, 4 Jun 2021 10:30:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2103E6143F for ; Fri, 4 Jun 2021 10:30:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230078AbhFDKcF (ORCPT ); Fri, 4 Jun 2021 06:32:05 -0400 Received: from mailgw01.mediatek.com ([210.61.82.183]:52025 "EHLO mailgw01.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S229962AbhFDKcE (ORCPT ); Fri, 4 Jun 2021 06:32:04 -0400 X-UUID: 206d795152254575967d79d2201d7d17-20210604 X-UUID: 206d795152254575967d79d2201d7d17-20210604 Received: from mtkcas07.mediatek.inc [(172.21.101.84)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1933577895; Fri, 04 Jun 2021 18:30:13 +0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs01n1.mediatek.inc (172.21.101.68) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 4 Jun 2021 18:30:11 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Fri, 4 Jun 2021 18:30:11 +0800 From: Dawei Chien To: Georgi Djakov , Rob Herring , Matthias Brugger , Stephen Boyd , Ryan Case CC: Mark Rutland , Nicolas Boichat , , , , , , Fan Chen , Arvin Wang , James Liao , Henry Chen Subject: [PATCH V10 01/12] dt-bindings: soc: Add dvfsrc driver bindings Date: Fri, 4 Jun 2021 18:29:48 +0800 Message-ID: <20210604102959.13807-2-dawei.chien@mediatek.com> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20210604102959.13807-1-dawei.chien@mediatek.com> References: <20210604102959.13807-1-dawei.chien@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org From: Henry Chen Document the binding for enabling dvfsrc on MediaTek SoC. Signed-off-by: Henry Chen Reviewed-by: Rob Herring --- .../devicetree/bindings/soc/mediatek/dvfsrc.yaml | 67 ++++++++++++++++++++++ include/dt-bindings/interconnect/mtk,mt8183-emi.h | 21 +++++++ 2 files changed, 88 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/mediatek/dvfsrc.yaml create mode 100644 include/dt-bindings/interconnect/mtk,mt8183-emi.h diff --git a/Documentation/devicetree/bindings/soc/mediatek/dvfsrc.yaml b/Documentation/devicetree/bindings/soc/mediatek/dvfsrc.yaml new file mode 100644 index 000000000000..f2b67b99921b --- /dev/null +++ b/Documentation/devicetree/bindings/soc/mediatek/dvfsrc.yaml @@ -0,0 +1,67 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/soc/mediatek/dvfsrc.yaml#" +$schema: "http://devicetree.org/meta-schemas/core.yaml#" + +title: MediaTek dynamic voltage and frequency scaling resource collector (DVFSRC) + +description: | + 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. + +maintainers: + - henryc.chen + +properties: + reg: + maxItems: 1 + description: DVFSRC common register address and length. + + compatible: + enum: + - mediatek,mt6873-dvfsrc + - mediatek,mt8183-dvfsrc + - mediatek,mt8192-dvfsrc + + '#interconnect-cells': + const: 1 + + dvfsrc-vcore: + type: object + description: + The DVFSRC regulator is modelled as a subdevice of the DVFSRC. + Because DVFSRC can request power directly via register read/write, likes + vcore which is a core power of mt8183. As such, the DVFSRC regulator + requires that DVFSRC nodes be present. + $ref: /schemas/regulator/regulator.yaml# + +required: + - compatible + - reg + - "#interconnect-cells" + +additionalProperties: false + +examples: + - | + #include + + soc { + #address-cells = <2>; + #size-cells = <2>; + + dvfsrc@10012000 { + compatible = "mediatek,mt8183-dvfsrc"; + reg = <0 0x10012000 0 0x1000>; + #interconnect-cells = <1>; + dvfsrc_vcore: dvfsrc-vcore { + regulator-name = "dvfsrc-vcore"; + regulator-min-microvolt = <725000>; + regulator-max-microvolt = <800000>; + regulator-always-on; + }; + }; + }; diff --git a/include/dt-bindings/interconnect/mtk,mt8183-emi.h b/include/dt-bindings/interconnect/mtk,mt8183-emi.h new file mode 100644 index 000000000000..dfd143f87885 --- /dev/null +++ b/include/dt-bindings/interconnect/mtk,mt8183-emi.h @@ -0,0 +1,21 @@ +/* SPDX-License-Identifier: GPL-2.0 + * + * Copyright (c) 2021 MediaTek Inc. + */ + +#ifndef __DT_BINDINGS_INTERCONNECT_MTK_MT8183_EMI_H +#define __DT_BINDINGS_INTERCONNECT_MTK_MT8183_EMI_H + +#define MT8183_SLAVE_DDR_EMI 0 +#define MT8183_MASTER_MCUSYS 1 +#define MT8183_MASTER_GPU 2 +#define MT8183_MASTER_MMSYS 3 +#define MT8183_MASTER_MM_VPU 4 +#define MT8183_MASTER_MM_DISP 5 +#define MT8183_MASTER_MM_VDEC 6 +#define MT8183_MASTER_MM_VENC 7 +#define MT8183_MASTER_MM_CAM 8 +#define MT8183_MASTER_MM_IMG 9 +#define MT8183_MASTER_MM_MDP 10 + +#endif