From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8D138C433F5 for ; Fri, 11 Mar 2022 10:23:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1347868AbiCKKYq (ORCPT ); Fri, 11 Mar 2022 05:24:46 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38718 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1347946AbiCKKYp (ORCPT ); Fri, 11 Mar 2022 05:24:45 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DAE216D1B2; Fri, 11 Mar 2022 02:23:42 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 77C04617C9; Fri, 11 Mar 2022 10:23:42 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 00BFAC340E9; Fri, 11 Mar 2022 10:23:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1646994221; bh=MQBcv8LT2Jk6uJnFFZyBXCLNVGhpoXjUK0NRa0YuX4k=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Z9XHa74W+TzgLgZqAEsu/oRDpF+MqmkiAHF70KZEB+IS5C3x7F/H3yctqi6BnCNVx L9eLUGDO1FAXbF/KqDXEnNngAh2ENr9YVKJf/0WjJsHt3dlmprceVqsJSyE4mOrpOA wfIbwvtK3EyP8gbTTRyIW42Hp06aNXAPZW80V+yiGSlvG/he3xkgVfZZU1BQYPwOGf w6fTat542Q8Q7DfEtYxwOB0TK2YOsURxkzFvs+4PFJlwoLU8gAynWYe+E15cIcLx+3 dFnkdr6ECE/nJg0jSEPp0xSfF+I50fC8EPaPZPUHE9NiMNNUv8y4IFxYaI+bKVrHmJ LnA/onzi8FP7w== Date: Fri, 11 Mar 2022 15:53:37 +0530 From: Vinod Koul To: Andy Shevchenko Cc: Miquel Raynal , linux-renesas-soc@vger.kernel.org, Magnus Damm , Gareth Williams , Phil Edworthy , Geert Uytterhoeven , Stephen Boyd , Michael Turquette , linux-clk@vger.kernel.org, Rob Herring , devicetree@vger.kernel.org, Viresh Kumar , dmaengine@vger.kernel.org, Thomas Petazzoni , Milan Stevanovic , Jimmy Lalande , Pascal Eberhard , Herve Codina , Clement Leger Subject: Re: [PATCH v4 5/9] dma: dw: dmamux: Introduce RZN1 DMA router support Message-ID: References: <20220310155755.287294-1-miquel.raynal@bootlin.com> <20220310155755.287294-6-miquel.raynal@bootlin.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On 10-03-22, 19:44, Andy Shevchenko wrote: > On Thu, Mar 10, 2022 at 04:57:51PM +0100, Miquel Raynal wrote: > > The Renesas RZN1 DMA IP is based on a DW core, with eg. an additional > > dmamux register located in the system control area which can take up to > > 32 requests (16 per DMA controller). Each DMA channel can be wired to > > two different peripherals. > > > > We need two additional information from the 'dmas' property: the channel > > (bit in the dmamux register) that must be accessed and the value of the > > mux for this channel. > > > > Aside from the driver introduction, as these devices are described as > > subnodes of the system controller, we also need the system controller > > (clock) driver to populate its children manually. Starting from now on, > > one child can be the dmamux. > > In all DMA engine related patches the prefix should be "dmaengine:". Yep! -- ~Vinod