From patchwork Tue Apr 19 04:49:59 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: hs.liao@mediatek.com X-Patchwork-Id: 611969 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3qpszc31tgz9t87 for ; Tue, 19 Apr 2016 14:51:24 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751209AbcDSEvW (ORCPT ); Tue, 19 Apr 2016 00:51:22 -0400 Received: from mailgw02.mediatek.com ([210.61.82.184]:14655 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1751135AbcDSEvW (ORCPT ); Tue, 19 Apr 2016 00:51:22 -0400 Received: from mtkhts09.mediatek.inc [(172.21.101.70)] by mailgw02.mediatek.com (envelope-from ) (mhqrelay.mediatek.com ESMTP with TLS) with ESMTP id 1141656529; Tue, 19 Apr 2016 12:51:17 +0800 Received: from localhost.localdomain (172.21.77.4) by mtkhts09.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 14.3.266.1; Tue, 19 Apr 2016 12:51:15 +0800 From: HS Liao To: Rob Herring , Matthias Brugger CC: Daniel Kurtz , Sascha Hauer , , , , , , Sascha Hauer , Philipp Zabel , Nicolas Boichat , CK HU , cawa cheng , Bibby Hsieh , YT Shen , Daoyuan Huang , Damon Chu , Josh-YC Liu , Glory Hung , Jiaguang Zhang , HS Liao Subject: [RFC v4 1/4] dt-bindings: soc: Add documentation for the MediaTek GCE unit Date: Tue, 19 Apr 2016 12:49:59 +0800 Message-ID: <1461041402-19962-2-git-send-email-hs.liao@mediatek.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1461041402-19962-1-git-send-email-hs.liao@mediatek.com> References: <1461041402-19962-1-git-send-email-hs.liao@mediatek.com> MIME-Version: 1.0 X-MTK: N Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org This adds documentation for the MediaTek Global Command Engine (GCE) unit found in MT8173 SoCs. Signed-off-by: HS Liao Acked-by: Rob Herring --- .../devicetree/bindings/soc/mediatek/gce.txt | 34 ++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/mediatek/gce.txt diff --git a/Documentation/devicetree/bindings/soc/mediatek/gce.txt b/Documentation/devicetree/bindings/soc/mediatek/gce.txt new file mode 100644 index 0000000..eff07e2 --- /dev/null +++ b/Documentation/devicetree/bindings/soc/mediatek/gce.txt @@ -0,0 +1,34 @@ +MediaTek GCE +=============== + +The Global Command Engine (GCE) is used to help read/write registers with +critical time limitation, such as updating display configuration during the +vblank. The GCE can be used to implement the Command Queue (CMDQ) driver. + +Required properties: +- compatible: Must be "mediatek,mt8173-gce" +- reg: Address range of the GCE unit +- interrupts: The interrupt signal from the GCE block +- clock: Clocks according to the common clock binding +- clock-names: Must be "gce" to stand for GCE clock + +Required properties for a client device: +- mediatek,gce: Should point to the respective GCE block + +Example: + + gce: gce@10212000 { + compatible = "mediatek,mt8173-gce"; + reg = <0 0x10212000 0 0x1000>; + interrupts = ; + clocks = <&infracfg CLK_INFRA_GCE>; + clock-names = "gce"; + }; + +Example for a client device: + + mmsys: clock-controller@14000000 { + compatible = "mediatek,mt8173-mmsys"; + mediatek,gce = <&gce>; + ... + };