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 4C422C433FE for ; Thu, 28 Apr 2022 09:19:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232524AbiD1JRP (ORCPT ); Thu, 28 Apr 2022 05:17:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51066 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345132AbiD1JNO (ORCPT ); Thu, 28 Apr 2022 05:13:14 -0400 Received: from mail-qv1-f54.google.com (mail-qv1-f54.google.com [209.85.219.54]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1834053E19; Thu, 28 Apr 2022 02:10:00 -0700 (PDT) Received: by mail-qv1-f54.google.com with SMTP id kj18so2782181qvb.6; Thu, 28 Apr 2022 02:10:00 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=Ckr8j2GN0jqMScfutldQkAKYzbRu3G1IkJTcIxhxO/Y=; b=nApdyyD7pbdJyGXcxL/9ya2A07WEEEQusNbsSk3wF86hEbn8kRQW5YYdbieBuzsb2d zcri+VgV2V0adio75C5V8DwSD72zL3osYPMbC/qWeaFKklkSb260eKVPTkcsy97RqY0X VgVZLs5nCT9iywF4w8Su5v5wFeySqEjH0uDgl6LKSEGALlODWqFLF0MIVqjr3qOGLG/w a96JrqlWErEa9oIT46lNGvKPJ5ePsCyinVSUk5iyz2ZVaK+skMe1DQOcn2kZoujo+sZG m+gr6txTpbVj0vnG8rZ6KxT/qgOWVroz3/XFDLlptZQr5v0wETg80dV33y5TREuJZO14 /0xA== X-Gm-Message-State: AOAM53396PhS6hF0RsOAhohFHk69GdTqb9+o8hoxxIvhFNZeOrb58dUS RsgbPa6zqkVOaSSmkhHvx1CJI+cz4D+jRQ== X-Google-Smtp-Source: ABdhPJxsPBgQhin+FfAQbrWLn3VUyfs7Px7dHmCOpZ4Oo7cRss1CZGoCNTcqhrQ0fs6up1OwSu1p7w== X-Received: by 2002:ad4:5c62:0:b0:444:560e:32ae with SMTP id i2-20020ad45c62000000b00444560e32aemr22643740qvh.76.1651136998773; Thu, 28 Apr 2022 02:09:58 -0700 (PDT) Received: from mail-yb1-f169.google.com (mail-yb1-f169.google.com. [209.85.219.169]) by smtp.gmail.com with ESMTPSA id e16-20020ac85990000000b002f3772de70asm5053865qte.69.2022.04.28.02.09.58 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 28 Apr 2022 02:09:58 -0700 (PDT) Received: by mail-yb1-f169.google.com with SMTP id s30so7850799ybi.8; Thu, 28 Apr 2022 02:09:58 -0700 (PDT) X-Received: by 2002:a25:3492:0:b0:645:6f78:b3b4 with SMTP id b140-20020a253492000000b006456f78b3b4mr31120983yba.546.1651136997907; Thu, 28 Apr 2022 02:09:57 -0700 (PDT) MIME-Version: 1.0 References: <20220421095323.101811-1-miquel.raynal@bootlin.com> <20220421095323.101811-11-miquel.raynal@bootlin.com> In-Reply-To: <20220421095323.101811-11-miquel.raynal@bootlin.com> From: Geert Uytterhoeven Date: Thu, 28 Apr 2022 11:09:46 +0200 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH v6 10/12] ARM: dts: r9a06g032: Fill the UART DMA properties To: Miquel Raynal Cc: Magnus Damm , Greg Kroah-Hartman , Jiri Slaby , Andy Shevchenko , Linux-Renesas , "open list:SERIAL DRIVERS" , Milan Stevanovic , Jimmy Lalande , Pascal Eberhard , Thomas Petazzoni , Herve Codina , Clement Leger , Ilpo Jarvinen Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org On Thu, Apr 21, 2022 at 11:53 AM Miquel Raynal wrote: > UART 0 to 2 do not have DMA support, while UART 3 to 7 do. > > Fill the "dmas" and "dma-names" properties for each of these nodes. > > Please mind that these nodes go through the dmamux node which will > redirect the requests to the right DMA controller. The first 4 cells of > the "dmas" properties will be transferred as-is to the DMA > controllers. The last 2 cells are consumed by the dmamux. Which means > cell 0 and 4 are almost redundant, one giving the controller request ID > and the other the dmamux channel which is a 1:1 translation of the > request IDs, shifted by 16 when pointing to the second DMA controller. > > Signed-off-by: Miquel Raynal Reviewed-by: Geert Uytterhoeven Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds