From patchwork Wed Nov 16 13:56:55 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eugeniy Paltsev X-Patchwork-Id: 9431635 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 C90BA6047D for ; Wed, 16 Nov 2016 13:57:40 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B869E28EC1 for ; Wed, 16 Nov 2016 13:57:40 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id AAFC528F0E; Wed, 16 Nov 2016 13:57:40 +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=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham 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 2E59528EC1 for ; Wed, 16 Nov 2016 13:57:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932797AbcKPN5X (ORCPT ); Wed, 16 Nov 2016 08:57:23 -0500 Received: from smtprelay.synopsys.com ([198.182.60.111]:46038 "EHLO smtprelay.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932166AbcKPN5V (ORCPT ); Wed, 16 Nov 2016 08:57:21 -0500 Received: from mailhost.synopsys.com (mailhost1.synopsys.com [10.12.238.239]) by smtprelay.synopsys.com (Postfix) with ESMTP id 6EC8910C1436; Wed, 16 Nov 2016 05:57:20 -0800 (PST) Received: from mailhost.synopsys.com (localhost [127.0.0.1]) by mailhost.synopsys.com (Postfix) with ESMTP id 53BF6BC0; Wed, 16 Nov 2016 05:57:20 -0800 (PST) Received: from paltsev-8460-lab.internal.synopsys.com (paltsev-8460-lab.internal.synopsys.com [10.121.14.113]) by mailhost.synopsys.com (Postfix) with ESMTP id C4F7CBA7; Wed, 16 Nov 2016 05:57:17 -0800 (PST) From: Eugeniy Paltsev To: devicetree@vger.kernel.org Cc: robh+dt@kernel.org, mark.rutland@arm.com, linux-kernel@vger.kernel.org, andriy.shevchenko@linux.intel.com, vireshk@kernel.org, dan.j.williams@intel.com, vinod.koul@intel.com, dmaengine@vger.kernel.org, linux-snps-arc@lists.infradead.org, Eugeniy Paltsev Subject: [PATCH 4/4] Update device tree Synopsys DW DMAC documentation Date: Wed, 16 Nov 2016 16:56:55 +0300 Message-Id: <1479304615-11360-5-git-send-email-Eugeniy.Paltsev@synopsys.com> X-Mailer: git-send-email 2.5.5 In-Reply-To: <1479304615-11360-1-git-send-email-Eugeniy.Paltsev@synopsys.com> References: <1479304615-11360-1-git-send-email-Eugeniy.Paltsev@synopsys.com> Sender: dmaengine-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP * Rename is_private to is-private as ordered by DT policy. The change leaves the support for the old format. * Add is-memcpu property, so it is possible to enable memory-to-memory transfers support via DT. * Add hw-llp property, so it is possible to enable hardware multi block transfers support via DT. Fix white spaces. Signed-off-by: Eugeniy Paltsev --- Documentation/devicetree/bindings/dma/snps-dma.txt | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/dma/snps-dma.txt b/Documentation/devicetree/bindings/dma/snps-dma.txt index 0f55832..d41d960 100644 --- a/Documentation/devicetree/bindings/dma/snps-dma.txt +++ b/Documentation/devicetree/bindings/dma/snps-dma.txt @@ -20,13 +20,19 @@ Required properties: Deprecated properties: - data_width: Maximum data width supported by hardware per AHB master (0 - 8bits, 1 - 16bits, ..., 5 - 256bits) +- is_private: The device channels should be marked as private and not for by the + general purpose DMA channel allocator. False if not passed. Optional properties: - interrupt-parent: Should be the phandle for the interrupt controller that services interrupts for this device -- is_private: The device channels should be marked as private and not for by the +- is-private: The device channels should be marked as private and not for by the general purpose DMA channel allocator. False if not passed. +- is-memcpu: The device channels do support memory-to-memory transfers. False + if not passed. +- hw-llp: Multi block transfers supported by hardware per AHB master. + 0 (default): not supported, 1: supported. Example: @@ -56,7 +62,7 @@ The four cells in order are: 4. Peripheral master for transfers on allocated channel Example: - + serial@e0000000 { compatible = "arm,pl011", "arm,primecell"; reg = <0xe0000000 0x1000>;