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[23.128.96.18]) by mx.google.com with ESMTP id k16si702698ejr.429.2020.05.08.04.14.24; Fri, 08 May 2020 04:15:00 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726817AbgEHLMn (ORCPT + 99 others); Fri, 8 May 2020 07:12:43 -0400 Received: from mga11.intel.com ([192.55.52.93]:42358 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726618AbgEHLMm (ORCPT ); Fri, 8 May 2020 07:12:42 -0400 IronPort-SDR: 0apcZ8snRwAlAt3zRBLYnEWgMaoPFwZmJpbZiEs/AhgU8VTJM+djXDrAb60Mjvl7ljbBwge0Yh lCwfz3NAt2ug== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 May 2020 04:12:42 -0700 IronPort-SDR: tPHsjctFLhnpEdjqGPIIIxGggrO9E26MnEi9onjtxKSOg4ih5enAwxq/IZzB8OmVioRf/5Bojm +O89XXil6fuw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.73,367,1583222400"; d="scan'208";a="305411701" Received: from smile.fi.intel.com (HELO smile) ([10.237.68.40]) by FMSMGA003.fm.intel.com with ESMTP; 08 May 2020 04:12:39 -0700 Received: from andy by smile with local (Exim 4.93) (envelope-from ) id 1jX0vq-005P9x-6B; Fri, 08 May 2020 14:12:42 +0300 Date: Fri, 8 May 2020 14:12:42 +0300 From: Andy Shevchenko To: Serge Semin Cc: Vinod Koul , Viresh Kumar , Rob Herring , Serge Semin , Alexey Malahov , Thomas Bogendoerfer , Paul Burton , Ralf Baechle , Arnd Bergmann , Dan Williams , linux-mips@vger.kernel.org, dmaengine@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 2/6] dt-bindings: dma: dw: Add max burst transaction length property Message-ID: <20200508111242.GH185537@smile.fi.intel.com> References: <20200306131048.ADBE18030797@mail.baikalelectronics.ru> <20200508105304.14065-1-Sergey.Semin@baikalelectronics.ru> <20200508105304.14065-3-Sergey.Semin@baikalelectronics.ru> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200508105304.14065-3-Sergey.Semin@baikalelectronics.ru> Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, May 08, 2020 at 01:53:00PM +0300, Serge Semin wrote: > This array property is used to indicate the maximum burst transaction > length supported by each DMA channel. > + snps,max-burst-len: > + $ref: /schemas/types.yaml#/definitions/uint32-array > + 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 (data-width) field. > + items: > + maxItems: 8 > + items: > + enum: [4, 8, 16, 32, 64, 128, 256] Isn't 1 allowed? > + default: 256 -- With Best Regards, Andy Shevchenko