From patchwork Tue Apr 30 11:20:10 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Roger Lu X-Patchwork-Id: 10923285 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id B3E2115A6 for ; Tue, 30 Apr 2019 11:22:15 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A31B128A99 for ; Tue, 30 Apr 2019 11:22:15 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 96E5828AA2; Tue, 30 Apr 2019 11:22:15 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 3BE3F28A99 for ; Tue, 30 Apr 2019 11:22:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=hfq6rAz5D2i+v5htnOXRaItbTLISHFCTDI8bqWkxfhI=; b=K47M4fKef7DmJa H163LzsdIUdr6GXofA96/rzLvEYtsgDuhaNyIV+2wrEfM4Obqhm7hgkz4T5BAICUgdFa1eBXLOHtG 8bCdlEYxPp1r7mitnLrCmw+Bn4GZhGAYTU7lgSV7jzK1ldvi3uW+t49XC71lznPYZd7pjwUrwPbaU X1XlbVawApcGE9OGFUQz86SyfpyO0zHWZKrR/TeXVMnn1AfY/kMEUmp+hbD7lLisJ1ijyxiOS82FB XfBNrlJySC2t7ZyRNWcvdE5i4IjW07fxYPy7UwuC263LFvmquPz7bnCakv+0uNDLnpVr5vUotbfFU SCXft8qBxDj6zqnLNd0w==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hLQpu-0001cW-DE; Tue, 30 Apr 2019 11:22:10 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hLQpU-00014z-QE; Tue, 30 Apr 2019 11:21:50 +0000 X-UUID: 6a2f285fdea44fdcac04c0197e50ad13-20190430 X-UUID: 6a2f285fdea44fdcac04c0197e50ad13-20190430 Received: from mtkcas67.mediatek.inc [(172.29.193.45)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLS) with ESMTP id 1436152873; Tue, 30 Apr 2019 03:21:38 -0800 Received: from mtkmbs08n2.mediatek.inc (172.21.101.56) by MTKMBS62N2.mediatek.inc (172.29.193.42) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Tue, 30 Apr 2019 04:21:37 -0700 Received: from mtkcas09.mediatek.inc (172.21.101.178) by mtkmbs08n2.mediatek.inc (172.21.101.56) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Tue, 30 Apr 2019 19:21:29 +0800 Received: from mtkslt207.mediatek.inc (10.21.15.94) by mtkcas09.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Tue, 30 Apr 2019 19:21:29 +0800 From: Roger Lu To: Rob Herring , Matthias Brugger , Viresh Kumar , Stephen Boyd , "Rafael J . Wysocki" Subject: [RFC v1 1/3] dt-bindings: soc: add mtk svs dt-bindings Date: Tue, 30 Apr 2019 19:20:10 +0800 Message-ID: <20190430112012.4514-2-roger.lu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20190430112012.4514-1-roger.lu@mediatek.com> References: <20190430112012.4514-1-roger.lu@mediatek.com> MIME-Version: 1.0 X-TM-SNTS-SMTP: E98BCA2A6482E39BD36EDBBB3E007502447FBA8A75806DE18C05AF44705A47AC2000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190430_042145_392990_9FD97E22 X-CRM114-Status: GOOD ( 11.15 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Nishanth Menon , devicetree@vger.kernel.org, linux-pm@vger.kernel.org, Kevin Hilman , Roger Lu , linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Document the binding for enabling mtk svs on MediaTek SoC. Signed-off-by: Roger Lu --- .../devicetree/bindings/power/mtk-svs.txt | 70 +++++++++++++++++++ 1 file changed, 70 insertions(+) create mode 100644 Documentation/devicetree/bindings/power/mtk-svs.txt diff --git a/Documentation/devicetree/bindings/power/mtk-svs.txt b/Documentation/devicetree/bindings/power/mtk-svs.txt new file mode 100644 index 000000000000..355329db74ba --- /dev/null +++ b/Documentation/devicetree/bindings/power/mtk-svs.txt @@ -0,0 +1,70 @@ +* Mediatek Smart Voltage Scaling (MTK SVS) + +This describes the device tree binding for the MTK SVS controller +which helps provide the optimized CPU/GPU/CCI voltages. This device also +needs thermal data to calculate thermal slope for accurately compensate +the voltages when temperature change. + +Required properties: +- compatible: + - "mediatek,mt8183-svs" : For MT8183 family of SoCs +- reg: Address range of the MTK SVS controller. +- interrupts: IRQ for the MTK SVS controller. +- clocks, clock-names: Clocks needed for the svs controller. required + clocks are: + "main_clk": Main clock needed for register access +- nvmem-cells: Phandle to the calibration data provided by a nvmem device. +- nvmem-cell-names: Should be "svs-calibration-data" and "calibration-data" +- svs_xxx: Phandle of svs_bank device for controlling corresponding opp + table and power-domains. +- vxxx-supply: Phandle to each regulator. vxxx can be "vcpu_little", + "vcpu_big", "vcci" and "vgpu". + +Example: + + svs: svs@1100b000 { + compatible = "mediatek,mt8183-svs"; + reg = <0 0x1100b000 0 0x1000>; + interrupts = ; + clocks = <&infracfg CLK_INFRA_THERM>; + clock-names = "main_clk"; + nvmem-cells = <&svs_calibration>, <&thermal_calibration>; + nvmem-cell-names = "svs-calibration-data", "calibration-data"; + + svs_cpu_little: svs_cpu_little { + compatible = "mediatek,mt8183-svs-cpu-little"; + operating-points-v2 = <&cluster0_opp>; + }; + + svs_cpu_big: svs_cpu_big { + compatible = "mediatek,mt8183-svs-cpu-big"; + operating-points-v2 = <&cluster1_opp>; + }; + + svs_cci: svs_cci { + compatible = "mediatek,mt8183-svs-cci"; + operating-points-v2 = <&cluster2_opp>; + }; + + svs_gpu: svs_gpu { + compatible = "mediatek,mt8183-svs-gpu"; + power-domains = <&scpsys MT8183_POWER_DOMAIN_MFG_2D>; + operating-points-v2 = <&gpu_opp_table>; + }; + }; + + &svs_cpu_little { + vcpu_little-supply = <&mt6358_vproc12_reg>; + }; + + &svs_cpu_big { + vcpu_big-supply = <&mt6358_vproc11_reg>; + }; + + &svs_cci { + vcci-supply = <&mt6358_vproc12_reg>; + }; + + &svs_gpu { + vgpu-spply = <&mt6358_vgpu_reg>; + };