From patchwork Wed Apr 19 08:06:17 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Guillaume Tucker X-Patchwork-Id: 9686993 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 8563560383 for ; Wed, 19 Apr 2017 08:09:12 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 74DAE27F93 for ; Wed, 19 Apr 2017 08:09:12 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 694AF28342; Wed, 19 Apr 2017 08:09:12 +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 EBAD3282E2 for ; Wed, 19 Apr 2017 08:09:11 +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=KzHYWzypaJuz+/US93BNxqwwaVqYsLPRG17EImBR7qg=; b=oB/4KpHUYGspDzkCO9fm2Nh+78 SK1tma+tDtgR0FDIwLHgN8mT9hjXokB06i0gzJRXHtF0YEDMqOGEk0fg6OHN6cIFK6CxJ9tTcyTJC GSqSqwWNxzmWECxV0jnVQdl9dZuwTh2BkqL3zn4DQQeI5Hz/qoDNiH1JtLuxXVT5NLR3qvYmQt4Or gXuGgGQxG4oS/msHQn90aN6y0U57QCny4PrRrlI1iNz2TM7yuSk8lQ9v8mWuNrep308YZKpA/HQoc cfrVu1IZx1uorUa2QqLYlb9l+2Eb31DDFrsFT5YLyJx/7KollknnjTbpfZB6GHlr7UDsRGmhh/SBR OROehY3w==; 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 1d0kfm-0003ip-OC; Wed, 19 Apr 2017 08:09:10 +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 1d0kfE-00038E-EF; Wed, 19 Apr 2017 08:08:39 +0000 Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: gtucker) with ESMTPSA id 22A55260427 From: Guillaume Tucker To: Rob Herring , Mark Rutland , =?UTF-8?q?Heiko=20St=C3=BCbner?= , Neil Armstrong Subject: [PATCH v3 1/5] dt-bindings: gpu: add bindings for the ARM Mali Midgard GPU Date: Wed, 19 Apr 2017 09:06:17 +0100 Message-Id: <96021d989387d9aaff039efebd66aa3bfe667941.1492588180.git.guillaume.tucker@collabora.com> 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-20170419_010836_842386_F2ABE415 X-CRM114-Status: GOOD ( 13.34 ) 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 "compatible" property strings have been redesigned to explicitly list all the Mali Midgard GPU types and include optional vendor ones. The "clock-names" property has been dropped as only one clock is used by the Mali Midgard driver which now needs to call clk_get with NULL. The "interrupt-names" property values have been converted to lower-case: "job", "mmu" and "gpu". 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 copyright and GPL licence header has been removed as deemed not necessary. CC: John Reitan Tested-by: Enric Balletbo i Serra Signed-off-by: Guillaume Tucker --- .../devicetree/bindings/gpu/arm,mali-midgard.txt | 57 ++++++++++++++++++++++ 1 file changed, 57 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..917c4f8d178f --- /dev/null +++ b/Documentation/devicetree/bindings/gpu/arm,mali-midgard.txt @@ -0,0 +1,57 @@ +ARM Mali Midgard GPU +==================== + +Required properties: + +- compatible : + * Must be one of the following: + + "arm,mali-t60x" + + "arm,mali-t62x" + + "arm,mali-t720" + + "arm,mali-t760" + + "arm,mali-t820" + + "arm,mali-t830" + + "arm,mali-t860" + + "arm,mali-t880" + * And, optionally, one of the vendor specific compatible: + + "amlogic,meson-gxm-mali" + +- 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 properties: + +- clocks : Phandle to clock for the Mali Midgard device. + +- 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@fc010000 { + compatible = "arm,mali-t60x", "arm,mali-midgard"; + reg = <0xfc010000 0x4000>; + interrupts = <0 36 4>, <0 37 4>, <0 38 4>; + interrupt-names = "job", "mmu", "gpu"; + clocks = <&pclk_mali>; + mali-supply = <&vdd_mali>; + operating-points = < + /* KHz uV */ + 533000 1250000, + 450000 1150000, + 400000 1125000, + 350000 1075000, + 266000 1025000, + 160000 925000, + 100000 912500, + >; +};