From patchwork Thu May 25 07:12:48 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sean Wang X-Patchwork-Id: 9747917 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 D92B360246 for ; Thu, 25 May 2017 07:42:54 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C5FBA27852 for ; Thu, 25 May 2017 07:42:54 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B7A4E27CF9; Thu, 25 May 2017 07:42:54 +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=ham 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 E932027852 for ; Thu, 25 May 2017 07:42:53 +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=otuYGoL36tYQkHCMc0SGba/NPKM6F3s0F+QUJL8X5ak=; b=Y5CALBMmDCRqe0 sw5geh5hO6OA1bb0xEqtZq1TBxk0NSpHx1T1aB7JsAI7576kI47fcuPqoMLFTj6sZeiVIveebRRtZ FH6dIA8J6tElmng6tN9pfRsV+tSVaC9/vNt4Pg1icmHtcsrYHQFw0L2OlymmOu5zVDDC5f8HTrL2f /C2VI76GfZ4LeiJRYPwdUOEeZaiYk6sCL0FRq6QtUQpqfAdYpNLAnjcLWPTNWJRetwJPXuVNVQvEn dXaILoQC26ehy7Zojwj7CI4I9P8a4opnqLh5hdmSIKF7MJUfjO8BinCa9dPyP2xBfA9gMT69j3EZ9 dF1zbSKHrO2u2AY+O0yw==; 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 1dDnQ5-00049Z-4Q; Thu, 25 May 2017 07:42:53 +0000 Received: from [210.61.82.183] (helo=mailgw01.mediatek.com) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1dDmxR-0004QW-Vn; Thu, 25 May 2017 07:13:20 +0000 Received: from mtkhts07.mediatek.inc [(172.21.101.69)] by mailgw01.mediatek.com (envelope-from ) (mhqrelay.mediatek.com ESMTP with TLS) with ESMTP id 1042166358; Thu, 25 May 2017 15:12:53 +0800 Received: from mtkswgap22.mediatek.inc (172.21.77.33) by mtkhts07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 14.3.266.1; Thu, 25 May 2017 15:12:52 +0800 From: To: , , , Subject: [PATCH v2 1/2] dt-bindings: dmaengine: Add Mediatek High-Speed DMA controller bindings Date: Thu, 25 May 2017 15:12:48 +0800 Message-ID: X-Mailer: git-send-email 1.7.9.5 In-Reply-To: References: MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170525_001318_241984_719E9D90 X-CRM114-Status: GOOD ( 13.96 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, keyhaede@gmail.com, Sean Wang , linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org, dmaengine@vger.kernel.org, linux-arm-kernel@lists.infradead.org Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: Sean Wang Document the devicetree bindings for Mediatek High-Speed DMA controller which could be found on MT7623 SoC or other similar Mediatek SoCs. Signed-off-by: Sean Wang Acked-by: Rob Herring --- .../devicetree/bindings/dma/mtk-hsdma.txt | 29 ++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 Documentation/devicetree/bindings/dma/mtk-hsdma.txt diff --git a/Documentation/devicetree/bindings/dma/mtk-hsdma.txt b/Documentation/devicetree/bindings/dma/mtk-hsdma.txt new file mode 100644 index 0000000..b37e76e --- /dev/null +++ b/Documentation/devicetree/bindings/dma/mtk-hsdma.txt @@ -0,0 +1,29 @@ +Mediatek High-Speed DMA Controller +================================== + +This driver follows the generic DMA bindings defined in dma/dma.txt. + +Required properties: + +- compatible: Must be one of + "mediatek,mt7623-hsdma". +- reg: Should contain the register's base address and length. +- interrupts: Should contain a reference to the interrupt used by this + device. +- clocks: Should be the clock specifiers corresponding to the entry in + clock-names property. +- clock-names: Should contain "hsdma" entries. +- #dma-cells: The length of the DMA specifier, must be <1>. This one cell + in dmas property of a client device represents the channel + number. +Example: + + hsdma: hsdma@1b007000 { + compatible = "mediatek,mt7623-hsdma"; + reg = <0 0x1b007000 0 0x1000>; + interrupts = ; + clocks = <ðsys CLK_ETHSYS_HSDMA>; + clock-names = "hsdma"; + }; + +DMA clients must use the format described in dma/dma.txt file.