From nobody Mon Nov 11 16:15:19 2024 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 8B277C433EF for ; Fri, 10 Dec 2021 17:01:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244309AbhLJRFW (ORCPT ); Fri, 10 Dec 2021 12:05:22 -0500 Received: from mailgw02.mediatek.com ([210.61.82.184]:49676 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S244269AbhLJRFT (ORCPT ); Fri, 10 Dec 2021 12:05:19 -0500 X-UUID: e46cf14a148c448dabdc1b6bb00a21ae-20211211 X-UUID: e46cf14a148c448dabdc1b6bb00a21ae-20211211 Received: from mtkexhb01.mediatek.inc [(172.21.101.102)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1547971775; Sat, 11 Dec 2021 01:01:41 +0800 Received: from mtkcas11.mediatek.inc (172.21.101.40) by mtkmbs10n1.mediatek.inc (172.21.101.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.792.15; Sat, 11 Dec 2021 01:01:41 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas11.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Sat, 11 Dec 2021 01:01:40 +0800 From: Flora Fu To: Matthias Brugger , Liam Girdwood , Mark Brown CC: , , , Flora Fu , "Yong Wu" , JB Tsai , Pi-Cheng Chen , Chun-Jie Chen Subject: [PATCH v4 4/8] dt-bindings: soc: mediatek: apusys: Add new document for APU power domain Date: Sat, 11 Dec 2021 01:01:09 +0800 Message-ID: <20211210170113.30063-5-flora.fu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20211210170113.30063-1-flora.fu@mediatek.com> References: <20211210170113.30063-1-flora.fu@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Document the bindings for APU power domain on MediaTek SoC. Signed-off-by: Flora Fu Reviewed-by: Rob Herring --- .../soc/mediatek/mediatek,apu-pm.yaml | 144 ++++++++++++++++++ 1 file changed, 144 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/mediatek/mediatek= ,apu-pm.yaml diff --git a/Documentation/devicetree/bindings/soc/mediatek/mediatek,apu-pm= .yaml b/Documentation/devicetree/bindings/soc/mediatek/mediatek,apu-pm.yaml new file mode 100644 index 000000000000..e1b7d4030dc9 --- /dev/null +++ b/Documentation/devicetree/bindings/soc/mediatek/mediatek,apu-pm.yaml @@ -0,0 +1,144 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +# Copyright 2021 (C) MediaTek Inc. +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/soc/mediatek/mediatek,apu-pm.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: MediaTek APU Power Domains + +maintainers: + - Flora Fu + +description: | + MediaTek AI Process Unit (APU) include support for power domains which c= an be + powered up/down by software. + APU subsys belonging to a power domain should contain a 'power-domains' + property that is a phandle for apuspm node representing the domain. + +properties: + compatible: + items: + - enum: + - mediatek,mt8192-apu-pm + - const: syscon + + reg: + description: Address range of the APU power domain controller. + maxItems: 1 + + '#address-cells': + const: 1 + + '#size-cells': + const: 0 + + '#power-domain-cells': + const: 1 + + vsram-supply: + description: apu sram regulator supply. + + mediatek,scpsys: + $ref: /schemas/types.yaml#/definitions/phandle + description: | + phandle to the device containing the scpsys register range. + + mediatek,apu-conn: + $ref: /schemas/types.yaml#/definitions/phandle + description: | + phandle to the device containing the scpsys apu conn register range. + + mediatek,apu-conn1: + $ref: /schemas/types.yaml#/definitions/phandle + description: | + phandle to the device containing the scpsys apu conn1 register range. + + mediatek,apu-vcore: + $ref: /schemas/types.yaml#/definitions/phandle + description: | + phandle to the device containing the scpsys apu vcore register range. + +patternProperties: + "^power-domain@[0-9a-f]+$": + type: object + description: | + Represents the power domains within the power controller node as + documented in Documentation/devicetree/bindings/power/power-domain.y= aml. + + properties: + reg: + description: Power domain index. + maxItems: 1 + + '#power-domain-cells': + description: | + Must be 0 for nodes representing a single PM domain and 1 for no= des + providing multiple PM. + + clocks: + description: | + List of phandles of clocks list. Specify by order according to + power-up sequence. + + clock-names: + description: | + List of names of clocks. Specify by order according to power-up + sequence. + + assigned-clocks: + maxItems: 2 + + assigned-clock-parents: + maxItems: 2 + + domain-supply: + description: domain regulator supply. + + required: + - reg + - '#power-domain-cells' + + additionalProperties: false + +required: + - compatible + - reg + - '#power-domain-cells' + - vsram-supply + - mediatek,scpsys + +additionalProperties: false + +examples: + - | + #include + apuspm: power-domain@190f0000 { + compatible =3D "mediatek,mt8192-apu-pm", "syscon"; + reg =3D <0x190f0000 0x1000>; + #address-cells =3D <1>; + #size-cells =3D <0>; + #power-domain-cells =3D <1>; + vsram-supply =3D <&mt6359_vsram_md_ldo_reg>; + mediatek,scpsys =3D <&scpsys>; + mediatek,apu-conn =3D <&apu_conn>; + mediatek,apu-vcore =3D <&apu_vcore>; + + apu_top: power-domain@0 { + reg =3D <0>; + #power-domain-cells =3D <0>; + clocks =3D <&topckgen CLK_TOP_DSP_SEL>, + <&topckgen CLK_TOP_IPU_IF_SEL>, + <&clk26m>, + <&topckgen CLK_TOP_UNIVPLL_D6_D2>; + clock-names =3D "clk_top_conn", + "clk_top_ipu_if", + "clk_off", + "clk_on_default"; + assigned-clocks =3D <&topckgen CLK_TOP_DSP_SEL>, + <&topckgen CLK_TOP_IPU_IF_SEL>; + assigned-clock-parents =3D <&topckgen CLK_TOP_UNIVPLL_D6_D2>, + <&topckgen CLK_TOP_UNIVPLL_D6_D2>; + domain-supply =3D <&mt6359_vproc1_buck_reg>; + }; + }; --=20 2.18.0