From nobody Sat Sep 21 14:54:39 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 A57A7ECAAD3 for ; Thu, 15 Sep 2022 10:17:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229644AbiIOKR3 (ORCPT ); Thu, 15 Sep 2022 06:17:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44312 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229499AbiIOKR0 (ORCPT ); Thu, 15 Sep 2022 06:17:26 -0400 Received: from madras.collabora.co.uk (madras.collabora.co.uk [IPv6:2a00:1098:0:82:1000:25:2eeb:e5ab]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 027AC8B2FD; Thu, 15 Sep 2022 03:17:24 -0700 (PDT) Received: from IcarusMOD.eternityproject.eu (2-237-20-237.ip236.fastwebnet.it [2.237.20.237]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: kholk11) by madras.collabora.co.uk (Postfix) with ESMTPSA id 08B7B6601FC1; Thu, 15 Sep 2022 11:17:21 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1663237042; bh=VBjmGTPbnCwAAvGk/ff1IN7gQbWyskRYE92etNw3s84=; h=From:To:Cc:Subject:Date:From; b=kQbe9/EZuy0ox4Mxfil4UtJ9AL8r5l+zM4oGImFZpoYLeRalRYcH46tdiY/K9y9K/ FDMADdX8OSCtWfJ/NVu+qecAIYDcou5gywuvEEmeXj0Tvkv/Y4KypcVhhUfn84RaDK KJMZE7uEtmxMqS419CNZMN44ZHlYWACiL6+9r6rT7lwhCrtN2EaPPhG4876HpnE1AF fo9RsFntwHWRudOJzemTNJMW9Zh+HVO55dQD6pYTXZA4jAIUjXGvXUY48ULke+1yra gc6sFmKFhQcPnSf/4htTCDI0HVgTNV43e5vb7U8C4TAMwFYn+S/WNjZ9RMB6Zq5J4Y KcsbE40D6lOWw== From: AngeloGioacchino Del Regno To: robh+dt@kernel.org Cc: jassisinghbrar@gmail.com, krzysztof.kozlowski+dt@linaro.org, matthias.bgg@gmail.com, houlong.wei@mediatek.com, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, AngeloGioacchino Del Regno Subject: [PATCH] dt-bindings: mailbox: Convert mtk-gce to DT schema Date: Thu, 15 Sep 2022 12:17:16 +0200 Message-Id: <20220915101716.70225-1-angelogioacchino.delregno@collabora.com> X-Mailer: git-send-email 2.37.2 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Convert the mtk-gce mailbox binding to DT schema format. Signed-off-by: AngeloGioacchino Del Regno Reported-by: kernel test robot --- .../mailbox/mediatek,gce-mailbox.yaml | 104 ++++++++++++++++++ .../devicetree/bindings/mailbox/mtk-gce.txt | 82 -------------- 2 files changed, 104 insertions(+), 82 deletions(-) create mode 100644 Documentation/devicetree/bindings/mailbox/mediatek,gce-= mailbox.yaml delete mode 100644 Documentation/devicetree/bindings/mailbox/mtk-gce.txt diff --git a/Documentation/devicetree/bindings/mailbox/mediatek,gce-mailbox= .yaml b/Documentation/devicetree/bindings/mailbox/mediatek,gce-mailbox.yaml new file mode 100644 index 000000000000..ac6ca7fc5302 --- /dev/null +++ b/Documentation/devicetree/bindings/mailbox/mediatek,gce-mailbox.yaml @@ -0,0 +1,104 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mailbox/mediatek,gce-mailbox.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Mediatek Global Command Engine Mailbox + +maintainers: + - Houlong Wei + +description: | + The Global Command Engine (GCE) is used to help read/write registers with + critical time limitation, such as updating display configuration during = the + vblank. The GCE can be used to implement the Command Queue (CMDQ) driver. + +properties: + compatible: + enum: + - mediatek,mt6779-gce + - mediatek,mt8173-gce + - mediatek,mt8183-gce + - mediatek,mt8186-gce + - mediatek,mt8192-gce + - mediatek,mt8195-gce + + "#mbox-cells": + const: 2 + description: + The first cell describes the Thread ID of the GCE, + the second cell describes the priority of the GCE thread + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + items: + - description: Global Command Engine clock + + clock-names: + items: + - const: gce + +required: + - compatible + - "#mbox-cells" + - reg + - interrupts + - clocks + +if: + not: + properties: + compatible: + contains: + const: mediatek,mt8195-gce +then: + required: + - clock-names + +additionalProperties: false + +examples: + # Example for a device client and for a MediaTek mutex client + - | + #include + #include + #include + #include + #include + + gce: mailbox@12120000 { + compatible =3D "mediatek,mt8173-gce"; + reg =3D <0x10816000 0x1000>; + interrupts =3D ; + #mbox-cells =3D <2>; + clocks =3D <&infracfg CLK_INFRA_GCE>; + clock-names =3D "gce"; + }; + + syscon@14000000 { + compatible =3D "mediatek,mt8173-mmsys", "syscon"; + reg =3D <0x14000000 0x1000>; + power-domains =3D <&spm MT8173_POWER_DOMAIN_MM>; + #clock-cells =3D <1>; + #reset-cells =3D <1>; + mboxes =3D <&gce 0 CMDQ_THR_PRIO_HIGHEST>, + <&gce 1 CMDQ_THR_PRIO_HIGHEST>; + mediatek,gce-client-reg =3D <&gce SUBSYS_1400XXXX 0 0x1000>; + }; + + mutex@14020000 { + compatible =3D "mediatek,mt8173-disp-mutex"; + reg =3D <0x14020000 0x1000>; + interrupts =3D ; + power-domains =3D <&scpsys MT8173_POWER_DOMAIN_MM>; + clocks =3D <&mmsys CLK_MM_MUTEX_32K>; + mediatek,gce-client-reg =3D <&gce SUBSYS_1402XXXX 0 0x1000>; + mediatek,gce-events =3D , + ; + }; diff --git a/Documentation/devicetree/bindings/mailbox/mtk-gce.txt b/Docume= ntation/devicetree/bindings/mailbox/mtk-gce.txt deleted file mode 100644 index c2aeba63bd47..000000000000 --- a/Documentation/devicetree/bindings/mailbox/mtk-gce.txt +++ /dev/null @@ -1,82 +0,0 @@ -MediaTek GCE -=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D - -The Global Command Engine (GCE) is used to help read/write registers with -critical time limitation, such as updating display configuration during the -vblank. The GCE can be used to implement the Command Queue (CMDQ) driver. - -CMDQ driver uses mailbox framework for communication. Please refer to -mailbox.txt for generic information about mailbox device-tree bindings. - -Required properties: -- compatible: can be "mediatek,mt8173-gce", "mediatek,mt8183-gce", - "mediatek,mt8186-gce", "mediatek,mt8192-gce", "mediatek,mt8195-gce" or - "mediatek,mt6779-gce". -- reg: Address range of the GCE unit -- interrupts: The interrupt signal from the GCE block -- clock: Clocks according to the common clock binding -- clock-names: Must be "gce" to stand for GCE clock -- #mbox-cells: Should be 2. - <&phandle channel priority> - phandle: Label name of a gce node. - channel: Channel of mailbox. Be equal to the thread id of GCE. - priority: Priority of GCE thread. - -Required properties for a client device: -- mboxes: Client use mailbox to communicate with GCE, it should have this - property and list of phandle, mailbox specifiers. -Optional properties for a client device: -- mediatek,gce-client-reg: Specify the sub-system id which is corresponding - to the register address, it should have this property and list of phandl= e, - sub-system specifiers. - <&phandle subsys_number start_offset size> - phandle: Label name of a gce node. - subsys_number: specify the sub-system id which is corresponding - to the register address. - start_offset: the start offset of register address that GCE can access. - size: the total size of register address that GCE can access. - -Optional properties for a client mutex node: -- mediatek,gce-events: GCE events used by clients. The event numbers are - defined in 'dt-bindings/gce/-gce.h'. - -Some vaules of properties are defined in 'dt-bindings/gce/mt8173-gce.h', -'dt-bindings/gce/mt8183-gce.h', 'dt-bindings/gce/mt8186-gce.h' -'dt-bindings/gce/mt8192-gce.h', 'dt-bindings/gce/mt8195-gce.h' or -'dt-bindings/gce/mt6779-gce.h'. -Such as sub-system ids, thread priority, event ids. - -Example: - - gce: gce@10212000 { - compatible =3D "mediatek,mt8173-gce"; - reg =3D <0 0x10212000 0 0x1000>; - interrupts =3D ; - clocks =3D <&infracfg CLK_INFRA_GCE>; - clock-names =3D "gce"; - #mbox-cells =3D <2>; - }; - -Example for a client device: - - mmsys: clock-controller@14000000 { - compatible =3D "mediatek,mt8173-mmsys"; - mboxes =3D <&gce 0 CMDQ_THR_PRIO_LOWEST>, - <&gce 1 CMDQ_THR_PRIO_LOWEST>; - mutex-event-eof =3D ; - mediatek,gce-client-reg =3D <&gce SUBSYS_1400XXXX 0x3000 0x1000>, - <&gce SUBSYS_1401XXXX 0x2000 0x100>; - ... - }; - -Example for a client mutex node: - mutex: mutex@14020000 { - compatible =3D "mediatek,mt8173-disp-mutex"; - reg =3D <0 0x14020000 0 0x1000>; - interrupts =3D ; - power-domains =3D <&scpsys MT8173_POWER_DOMAIN_MM>; - clocks =3D <&mmsys CLK_MM_MUTEX_32K>; - mediatek,gce-events =3D , - ; - }; --=20 2.37.2