From patchwork Fri Mar 6 13:10:31 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Serge Semin X-Patchwork-Id: 11423917 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 5DE7E1580 for ; Fri, 6 Mar 2020 13:18:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3E99E2146E for ; Fri, 6 Mar 2020 13:18:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726524AbgCFNSD (ORCPT ); Fri, 6 Mar 2020 08:18:03 -0500 Received: from mail.baikalelectronics.com ([87.245.175.226]:36634 "EHLO mail.baikalelectronics.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726090AbgCFNSC (ORCPT ); Fri, 6 Mar 2020 08:18:02 -0500 X-Greylist: delayed 432 seconds by postgrey-1.27 at vger.kernel.org; Fri, 06 Mar 2020 08:18:01 EST Received: from localhost (unknown [127.0.0.1]) by mail.baikalelectronics.ru (Postfix) with ESMTP id 37EDD8030708; Fri, 6 Mar 2020 13:10:49 +0000 (UTC) X-Virus-Scanned: amavisd-new at baikalelectronics.ru Received: from mail.baikalelectronics.ru ([127.0.0.1]) by localhost (mail.baikalelectronics.ru [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id PnQUZGPfEfnN; Fri, 6 Mar 2020 16:10:48 +0300 (MSK) From: To: Vinod Koul , Rob Herring , Mark Rutland CC: Serge Semin , Serge Semin , Alexey Malahov , Thomas Bogendoerfer , Paul Burton , Ralf Baechle , , , Subject: [PATCH 2/5] dt-bindings: dma: dw: Add max burst transaction length property bindings Date: Fri, 6 Mar 2020 16:10:31 +0300 In-Reply-To: <20200306131035.10937-1-Sergey.Semin@baikalelectronics.ru> References: <20200306131035.10937-1-Sergey.Semin@baikalelectronics.ru> MIME-Version: 1.0 X-ClientProxiedBy: MAIL.baikal.int (192.168.51.25) To mail (192.168.51.25) Message-Id: <20200306131049.37EDD8030708@mail.baikalelectronics.ru> Sender: dmaengine-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org From: Serge Semin This array property is used to indicate the maximum burst transaction length supported by each DMA channel. Signed-off-by: Serge Semin Signed-off-by: Alexey Malahov Cc: Thomas Bogendoerfer Cc: Paul Burton Cc: Ralf Baechle --- .../devicetree/bindings/dma/snps,dma-spear1340.yaml | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/Documentation/devicetree/bindings/dma/snps,dma-spear1340.yaml b/Documentation/devicetree/bindings/dma/snps,dma-spear1340.yaml index d7f9383ceb8f..308ec6482064 100644 --- a/Documentation/devicetree/bindings/dma/snps,dma-spear1340.yaml +++ b/Documentation/devicetree/bindings/dma/snps,dma-spear1340.yaml @@ -126,6 +126,18 @@ properties: enum: [0, 1] default: 0 + snps,max-burst-len: + description: | + Maximum length of burst transactions supported by hardware. + It's an array property with one cell per channel in units of + CTLx register SRC_TR_WIDTH/DST_TR_WIDTH field. + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32-array + - maxItems: 8 + items: + enum: [4, 8, 16, 32, 64, 128, 256] + default: 0 + snps,dma-protection-control: description: | Bits one-to-one passed to the AHB HPROT[3:1] bus. Each bit setting