From patchwork Sun Apr 2 07:59:44 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Guillaume Tucker X-Patchwork-Id: 9658399 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 67605602F0 for ; Sun, 2 Apr 2017 08:02:00 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5AC13284D3 for ; Sun, 2 Apr 2017 08:02:00 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 4FA61284D6; Sun, 2 Apr 2017 08:02:00 +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=-1.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id C0D5A284D3 for ; Sun, 2 Apr 2017 08:01:59 +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:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: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=fsrgS4HdWgKvKGuXLGgviJxBBhnHKgXmlfF9eBMoJDM=; b=lAVs5GjY2wAijWy3GYbNnUQt7A 8/YdJOW0tObNSw+YeUQ32wrJKHAVmju0cOQ/Fkftmq0Xlh0s6b3obfHgmeD5ve4kUxc5Usi0/2gIv iJAC1Op3u8zshUjrpcWiBFpF7KtsC2w4BkErZXJJCw63kyHVHXW81vmklpbuldBhk+wSQM4SIgAB8 Jz6LgU1R7QjQHJW9+pA0GjldsMTLBhJIqfx26hgu84LPkTHOo/c2th2SLySy7/uT587p6KORAtjBL 2/tOQ7+BnCODDGsRYhZnP/MUAqlnJc+KDUF/Bv7/8b0KU9VBlF+wu1B3zgd4kYqN8F/defF4tsxc1 lvQat8sg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1cuaSV-0001Fj-0r; Sun, 02 Apr 2017 08:01:59 +0000 Received: from bhuna.collabora.co.uk ([46.235.227.227]) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1cuaRr-0000OQ-5r; Sun, 02 Apr 2017 08:01:23 +0000 Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: gtucker) with ESMTPSA id 3772826820B From: Guillaume Tucker To: Rob Herring , Mark Rutland Subject: [PATCH v2 1/5] dt-bindings: gpu: add bindings for the ARM Mali Midgard GPU Date: Sun, 2 Apr 2017 08:59:44 +0100 Message-Id: X-Mailer: git-send-email 2.11.0 In-Reply-To: References: In-Reply-To: References: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170402_010119_506084_F76C607E X-CRM114-Status: GOOD ( 11.95 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Guillaume Tucker , Sjoerd Simons , Wookey , linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, John Reitan , Enric Balletbo i Serra , linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+patchwork-linux-rockchip=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP The ARM Mali Midgard GPU family is present in a number of SoCs from many different vendors such as Samsung Exynos and Rockchip. Import the device tree bindings documentation from the r16p0 release of the Mali Midgard GPU kernel driver: https://developer.arm.com/-/media/Files/downloads/mali-drivers/kernel/mali-midgard-gpu/TX011-SW-99002-r16p0-00rel0.tgz The following optional bindings have been omitted in this initial version as they are only used in very specific cases: * snoop_enable_smc * snoop_disable_smc * jm_config * power_model * system-coherency * ipa-model The example has been simplified accordingly. The compatible string definition has been limited to "arm,mali-midgard" to avoid checkpatch.pl warnings and to match what the driver actually expects (as of r16p0 out-of-tree). CC: John Reitan Signed-off-by: Guillaume Tucker --- .../devicetree/bindings/gpu/arm,mali-midgard.txt | 53 ++++++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 Documentation/devicetree/bindings/gpu/arm,mali-midgard.txt diff --git a/Documentation/devicetree/bindings/gpu/arm,mali-midgard.txt b/Documentation/devicetree/bindings/gpu/arm,mali-midgard.txt new file mode 100644 index 000000000000..da8fc6d21bbf --- /dev/null +++ b/Documentation/devicetree/bindings/gpu/arm,mali-midgard.txt @@ -0,0 +1,53 @@ +# +# (C) COPYRIGHT 2013-2016 ARM Limited. +# Copyright (C) 2017 Collabora Ltd +# +# This program is free software and is provided to you under the terms of the +# GNU General Public License version 2 as published by the Free Software +# Foundation, and any use by you of this program is subject to the terms +# of such GNU licence. +# + + +ARM Mali Midgard GPU +==================== + +Required properties: + +- compatible : Should be "arm,mali-midgard". +- reg : Physical base address of the device and length of the register area. +- interrupts : Contains the three IRQ lines required by Mali Midgard devices. +- interrupt-names : Contains the names of IRQ resources in the order they were + provided in the interrupts property. Must contain: "JOB, "MMU", "GPU". + +Optional: + +- clocks : Phandle to clock for the Mali Midgard device. +- clock-names : Shall be "clk_mali". +- mali-supply : Phandle to regulator for the Mali device. Refer to + Documentation/devicetree/bindings/regulator/regulator.txt for details. +- operating-points : Refer to Documentation/devicetree/bindings/power/opp.txt + for details. + +Example for a Mali-T602: + +gpu@0xfc010000 { + compatible = "arm,mali-midgard"; + reg = <0xfc010000 0x4000>; + interrupts = <0 36 4>, <0 37 4>, <0 38 4>; + interrupt-names = "JOB", "MMU", "GPU"; + + clocks = <&pclk_mali>; + clock-names = "clk_mali"; + mali-supply = <&vdd_mali>; + operating-points = < + /* KHz uV */ + 533000 1250000, + 450000 1150000, + 400000 1125000, + 350000 1075000, + 266000 1025000, + 160000 925000, + 100000 912500, + >; +};