From patchwork Mon Jun 10 08:57:30 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: AngeloGioacchino Del Regno X-Patchwork-Id: 13691715 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D2CE1C27C5F for ; Mon, 10 Jun 2024 08:58:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=c7ru8014CY7USVccgXjwLExVr3v/CuHaeoWABJPn23A=; b=qGPFYpl3KXJ0ih JoQcPuwdrRfieP5ewp2rSaVXjWx5Ovnk8l1rDCSd04yZur+SAocNXIiRdT+tKlQ7Vogu86X3IPOg9 iK3wxyll7jEwtLSXE2llabRvmMT0MioNhbS1oDyXj9VdHFBfglYblfqk9rp1g9HXHpaR6isv+RBIc 0cnTopMRRoC2Z05km0/pTdgAbueRWRbkqMzQH0osVGvOwTOvVtlj6Eg7GHfdQ704rUx1KfDGg6ktr ksOG3Qrib2MQHYqMKetilpwvBPLvbOuP2V6n+JkWwyNBNy5TmlCM836kPEfYqVacFBkkRMq8PpTel 1k99npPaFt5c79yWyLDA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sGaqg-00000004KTd-0DPq; Mon, 10 Jun 2024 08:57:54 +0000 Received: from madrid.collaboradmins.com ([46.235.227.194]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sGaqW-00000004KNC-1MDC; Mon, 10 Jun 2024 08:57:46 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1718009863; bh=7OS11wbq8MY3bIA1rbCVTN3wvT0Qcm+ozW8EEVCbUok=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=uwK7wi/zsUYOHZag34vI2JvKF16v/TilP0hDq9IKyEgZKAl7NcETmiTIy+YPbvqnt ZXt3HXFpjd3DmMipjczidS6QOyG2crNHRY1TvL24CjxW55suBmQ1go8VFIIpjI1Gxw VjKyCRSFpvk2sgctRRRVsaQNG0rJQasqcYZuT6MxwwHCdiLDnp6zMS1kRFH+Enzi6Q ISxmuOdCZ2UE/uxsFNH47cNm5/TzGKKx701XksFYtUiU7KvDWut2qjn9S/Q/YjyZdU 1BxbcDwgV3NEzxDXCbMyPhxvKjimTnPgt4R7CBpYeAAbAm86gOSvPzfRr+QFpisl6K bUsiyZQUo/cCg== Received: from IcarusMOD.eternityproject.eu (cola.collaboradmins.com [195.201.22.229]) (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 madrid.collaboradmins.com (Postfix) with ESMTPSA id DFF913782172; Mon, 10 Jun 2024 08:57:41 +0000 (UTC) From: AngeloGioacchino Del Regno To: djakov@kernel.org Cc: robh@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, matthias.bgg@gmail.com, angelogioacchino.delregno@collabora.com, lgirdwood@gmail.com, broonie@kernel.org, keescook@chromium.org, gustavoars@kernel.org, henryc.chen@mediatek.com, linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, kernel@collabora.com, wenst@chromium.org, amergnat@baylibre.com Subject: [PATCH v6 2/7] dt-bindings: interconnect: Add MediaTek EMI Interconnect bindings Date: Mon, 10 Jun 2024 10:57:30 +0200 Message-ID: <20240610085735.147134-3-angelogioacchino.delregno@collabora.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240610085735.147134-1-angelogioacchino.delregno@collabora.com> References: <20240610085735.147134-1-angelogioacchino.delregno@collabora.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240610_015744_525292_75637A23 X-CRM114-Status: GOOD ( 14.58 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add bindings for the MediaTek External Memory Interface Interconnect, which providers support system bandwidth requirements through Dynamic Voltage Frequency Scaling Resource Collector (DVFSRC) hardware. This adds bindings for MediaTek MT8183 and MT8195 SoCs. Note that this is modeled as a subnode of DVFSRC for multiple reasons: - Some SoCs have more than one interconnect on the DVFSRC (and two different kinds of EMI interconnect, and also a SMI interconnect); - Some boards will want to not enable the interconnect driver because some of those are not battery powered (so they just keep the knobs at full thrust from the bootloader and never care scaling busses); - Some DVFSRC interconnect features may depend on firmware. Reviewed-by: Rob Herring Signed-off-by: AngeloGioacchino Del Regno --- .../interconnect/mediatek,mt8183-emi.yaml | 51 +++++++++++++++++++ .../interconnect/mediatek,mt8183.h | 23 +++++++++ .../interconnect/mediatek,mt8195.h | 44 ++++++++++++++++ 3 files changed, 118 insertions(+) create mode 100644 Documentation/devicetree/bindings/interconnect/mediatek,mt8183-emi.yaml create mode 100644 include/dt-bindings/interconnect/mediatek,mt8183.h create mode 100644 include/dt-bindings/interconnect/mediatek,mt8195.h diff --git a/Documentation/devicetree/bindings/interconnect/mediatek,mt8183-emi.yaml b/Documentation/devicetree/bindings/interconnect/mediatek,mt8183-emi.yaml new file mode 100644 index 000000000000..017c8478b2a7 --- /dev/null +++ b/Documentation/devicetree/bindings/interconnect/mediatek,mt8183-emi.yaml @@ -0,0 +1,51 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/interconnect/mediatek,mt8183-emi.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: MediaTek External Memory Interface (EMI) Interconnect + +maintainers: + - AngeloGioacchino Del Regno + +description: | + EMI interconnect providers support system bandwidth requirements through + Dynamic Voltage Frequency Scaling Resource Collector (DVFSRC) hardware. + The provider is able to communicate with the DVFSRC through Secure Monitor + Call (SMC). + + ICC provider ICC Nodes + ---- ---- + _________ |CPU | |--- |VPU | + _____ | |----- ---- | ---- + | |->| DRAM | ---- | ---- + |DRAM |->|scheduler|----- |GPU | |--- |DISP| + | |->| (EMI) | ---- | ---- + |_____|->|_________|---. ----- | ---- + /|\ `-|MMSYS|--|--- |VDEC| + | ----- | ---- + | | ---- + | change DRAM freq |--- |VENC| + -------- | ---- + SMC --> | DVFSRC | | ---- + -------- |--- |IMG | + | ---- + | ---- + |--- |CAM | + ---- + +properties: + compatible: + enum: + - mediatek,mt8183-emi + - mediatek,mt8195-emi + + '#interconnect-cells': + const: 1 + +required: + - compatible + - '#interconnect-cells' + +unevaluatedProperties: false diff --git a/include/dt-bindings/interconnect/mediatek,mt8183.h b/include/dt-bindings/interconnect/mediatek,mt8183.h new file mode 100644 index 000000000000..1088c350258d --- /dev/null +++ b/include/dt-bindings/interconnect/mediatek,mt8183.h @@ -0,0 +1,23 @@ +/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */ +/* + * Copyright (c) 2021 MediaTek Inc. + * Copyright (c) 2024 Collabora Ltd. + * AngeloGioacchino Del Regno + */ + +#ifndef __DT_BINDINGS_INTERCONNECT_MEDIATEK_MT8183_H +#define __DT_BINDINGS_INTERCONNECT_MEDIATEK_MT8183_H + +#define SLAVE_DDR_EMI 0 +#define MASTER_MCUSYS 1 +#define MASTER_MFG 2 +#define MASTER_MMSYS 3 +#define MASTER_MM_VPU 4 +#define MASTER_MM_DISP 5 +#define MASTER_MM_VDEC 6 +#define MASTER_MM_VENC 7 +#define MASTER_MM_CAM 8 +#define MASTER_MM_IMG 9 +#define MASTER_MM_MDP 10 + +#endif diff --git a/include/dt-bindings/interconnect/mediatek,mt8195.h b/include/dt-bindings/interconnect/mediatek,mt8195.h new file mode 100644 index 000000000000..33e0e6cde732 --- /dev/null +++ b/include/dt-bindings/interconnect/mediatek,mt8195.h @@ -0,0 +1,44 @@ +/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */ +/* + * Copyright (c) 2020 MediaTek Inc. + * Copyright (c) 2024 Collabora Ltd. + * AngeloGioacchino Del Regno + */ + +#ifndef __DT_BINDINGS_INTERCONNECT_MEDIATEK_MT8195_H +#define __DT_BINDINGS_INTERCONNECT_MEDIATEK_MT8195_H + +#define SLAVE_DDR_EMI 0 +#define MASTER_MCUSYS 1 +#define MASTER_GPUSYS 2 +#define MASTER_MMSYS 3 +#define MASTER_MM_VPU 4 +#define MASTER_MM_DISP 5 +#define MASTER_MM_VDEC 6 +#define MASTER_MM_VENC 7 +#define MASTER_MM_CAM 8 +#define MASTER_MM_IMG 9 +#define MASTER_MM_MDP 10 +#define MASTER_VPUSYS 11 +#define MASTER_VPU_0 12 +#define MASTER_VPU_1 13 +#define MASTER_MDLASYS 14 +#define MASTER_MDLA_0 15 +#define MASTER_UFS 16 +#define MASTER_PCIE_0 17 +#define MASTER_PCIE_1 18 +#define MASTER_USB 19 +#define MASTER_DBGIF 20 +#define SLAVE_HRT_DDR_EMI 21 +#define MASTER_HRT_MMSYS 22 +#define MASTER_HRT_MM_DISP 23 +#define MASTER_HRT_MM_VDEC 24 +#define MASTER_HRT_MM_VENC 25 +#define MASTER_HRT_MM_CAM 26 +#define MASTER_HRT_MM_IMG 27 +#define MASTER_HRT_MM_MDP 28 +#define MASTER_HRT_DBGIF 29 +#define MASTER_WIFI 30 +#define MASTER_BT 31 +#define MASTER_NETSYS 32 +#endif