From patchwork Wed Dec 12 21:18:47 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jordan Crouse X-Patchwork-Id: 10727115 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 EDD8B1751 for ; Wed, 12 Dec 2018 21:18:56 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E26E729E97 for ; Wed, 12 Dec 2018 21:18:56 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id CD6CE29E06; Wed, 12 Dec 2018 21:18:56 +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=-7.7 required=2.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6D24329B41 for ; Wed, 12 Dec 2018 21:18:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727491AbeLLVSz (ORCPT ); Wed, 12 Dec 2018 16:18:55 -0500 Received: from smtp.codeaurora.org ([198.145.29.96]:60420 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726960AbeLLVSz (ORCPT ); Wed, 12 Dec 2018 16:18:55 -0500 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id ED5F760A5F; Wed, 12 Dec 2018 21:18:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1544649534; bh=Qyhl1U7xSdva1EVkW/+fyqUw5Hn2WV5PUWkjWF+5DXk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=od1s6g9MjGaha/+y0Fpc0XWYqbhcCn1Lzmp/NlA9JvjmyhQW/xduweRMfInpmOMJr en61uch65wxs+lI+wS4pptQdob7Da+xZTGMO0B4cIr4tKDnSlNox8IMb5ZT4BN0hku 4Q9Cp4TcvGkjnafiLit7G7EcK9D6XLHaEhWbmXm0= Received: from jcrouse-lnx.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: jcrouse@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 53D6E6037C; Wed, 12 Dec 2018 21:18:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1544649533; bh=Qyhl1U7xSdva1EVkW/+fyqUw5Hn2WV5PUWkjWF+5DXk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=bQfoIvI6DKSQbQtVN52eRODJ0uu5ZqRk3h5tYiQd64kb98VMzTh9QOw1Zg4fsOJHq 3ztNNo0HGL+IhiDfaRRS6YyxZaKvCvThdA8sgghz18PH0FU5qBuvqzefSmGHCPhtA7 Zisf6kl2Q5ZdtTc0C0jlsdxWki2pI0kGBJDaH6A0= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 53D6E6037C Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=jcrouse@codeaurora.org From: Jordan Crouse To: freedreno@lists.freedesktop.org, dri-devel@lists.freedesktop.org Cc: nm@ti.com, devicetree@vger.kernel.org, rnayak@codeaurora.org, linux-pm@vger.kernel.org, linux-arm-msm@vger.kernel.org, dianders@chromium.org, vireshk@kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v6 1/2] dt-bindings: drm/msm/a6xx: Document GMU and update GPU bindings Date: Wed, 12 Dec 2018 14:18:47 -0700 Message-Id: <20181212211848.26768-2-jcrouse@codeaurora.org> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20181212211848.26768-1-jcrouse@codeaurora.org> References: <20181212211848.26768-1-jcrouse@codeaurora.org> Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Update the GPU bindings and document the new bindings for the GMU device found with Adreno a6xx targets. Signed-off-by: Jordan Crouse Reviewed-by: Douglas Anderson --- .../devicetree/bindings/display/msm/gmu.txt | 56 +++++++++++++++++++ .../devicetree/bindings/display/msm/gpu.txt | 41 +++++++++++++- 2 files changed, 94 insertions(+), 3 deletions(-) create mode 100644 Documentation/devicetree/bindings/display/msm/gmu.txt diff --git a/Documentation/devicetree/bindings/display/msm/gmu.txt b/Documentation/devicetree/bindings/display/msm/gmu.txt new file mode 100644 index 000000000000..6152cb551d29 --- /dev/null +++ b/Documentation/devicetree/bindings/display/msm/gmu.txt @@ -0,0 +1,56 @@ +Qualcomm adreno/snapdragon GMU (Graphics management unit) + +The GMU is a programmable power controller for the GPU. the CPU controls the +GMU which in turn handles power controls for the GPU. + +Required properties: +- compatible: + * "qcom,adreno-gmu" +- reg: Physical base address and length of the GMU registers. +- reg-names: Matching names for the register regions + * "gmu" + * "gmu_pdc" + * "gmu_pdc_seg" +- interrupts: The interrupt signals from the GMU. +- interrupt-names: Matching names for the interrupts + * "hfi" + * "gmu" +- clocks: phandles to the device clocks +- clock-names: Matching names for the clocks + * "gmu" + * "cxo" + * "axi" + * "mnoc" +- power-domains: should be <&clock_gpucc GPU_CX_GDSC> +- iommus: phandle to the adreno iommu +- operating-points-v2: phandle to the OPP operating points + +Example: + +/ { + ... + + gmu: gmu@506a000 { + compatible="qcom,adreno-gmu"; + + reg = <0x506a000 0x30000>, + <0xb280000 0x10000>, + <0xb480000 0x10000>; + reg-names = "gmu", "gmu_pdc", "gmu_pdc_seq"; + + interrupts = , + ; + interrupt-names = "hfi", "gmu"; + + clocks = <&gpucc GPU_CC_CX_GMU_CLK>, + <&gpucc GPU_CC_CXO_CLK>, + <&gcc GCC_DDRSS_GPU_AXI_CLK>, + <&gcc GCC_GPU_MEMNOC_GFX_CLK>; + clock-names = "gmu", "cxo", "axi", "memnoc"; + + power-domains = <&gpucc GPU_CX_GDSC>; + iommus = <&adreno_smmu 5>; + + operating-points-v2 = <&gmu_opp_table>; + }; +}; diff --git a/Documentation/devicetree/bindings/display/msm/gpu.txt b/Documentation/devicetree/bindings/display/msm/gpu.txt index 43fac0fe09bb..8d9415180c22 100644 --- a/Documentation/devicetree/bindings/display/msm/gpu.txt +++ b/Documentation/devicetree/bindings/display/msm/gpu.txt @@ -8,14 +8,21 @@ Required properties: with the chip-id. - reg: Physical base address and length of the controller's registers. - interrupts: The interrupt signal from the gpu. -- clocks: device clocks +- interrupt-names: List of names for the interrupt signals. The following can be + provided: + * "kgsl_3d0_irq" +- clocks: device clocks (if applicable) See ../clocks/clock-bindings.txt for details. -- clock-names: the following clocks are required: +- clock-names: the following clocks can be provided: * "core" * "iface" * "mem_iface" +- iommus: optional phandle to an adreno iommu instance +- operating-points-v2: optional phandle to the OPP operating points +- qcom,gmu: For a6xx and newer targets a phandle to the GMU device that will + control the power for the GPU -Example: +Example 3xx/4xx/a5xx: / { ... @@ -36,3 +43,31 @@ Example: <&mmcc MMSS_IMEM_AHB_CLK>; }; }; + +Example a6xx (with GMU): + +/ { + ... + + gpu@5000000 { + compatible = "qcom,adreno-630.2", "qcom,adreno"; + #stream-id-cells = <16>; + + reg = <0x5000000 0x40000>, <0x509e000 0x10>; + reg-names = "kgsl_3d0_reg_memory", "cx_mem"; + + /* + * Look ma, no clocks! The GPU clocks and power are + * controlled entirely by the GMU + */ + + interrupts = ; + interrupt-names = "kgsl_3d0_irq"; + + iommus = <&adreno_smmu 0>; + + operating-points-v2 = <&gpu_opp_table>; + + qcom,gmu = <&gmu>; + }; +};