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 X-Spam-Level: X-Spam-Status: No, score=-5.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DC5CCC388F3 for ; Tue, 1 Oct 2019 11:43:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B2B8821D71 for ; Tue, 1 Oct 2019 11:43:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1569930188; bh=tJR5J/Rh2DvJ4Fsv74waKrrmgsTKjIPuw/3Vb14e/Vk=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=TrpmS1jzy+Q3y/sK7aDAkzEHxlmfjsQvQDEUMAsZnFz/VyAf4sKbv3HmPoEIGdWi/ MXE4wbzFxppzU/NiV8/8mMvD4IFKjkeogZBfSfaLpjTwP5OH7cLg2cOhm98qCk9Los dHZZxu75ZERixBtOxmU6AqgyHF7WObdmWwxCCUZQ= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387869AbfJALnI (ORCPT ); Tue, 1 Oct 2019 07:43:08 -0400 Received: from mail-ot1-f66.google.com ([209.85.210.66]:43857 "EHLO mail-ot1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732551AbfJALnH (ORCPT ); Tue, 1 Oct 2019 07:43:07 -0400 Received: by mail-ot1-f66.google.com with SMTP id o44so11219832ota.10; Tue, 01 Oct 2019 04:43:07 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=qBJxEX/eYnXyleU23su6cmwpDx2vW/AsucVLt4T1oY4=; b=SrsvjXJAyeqsNBsGElZzT0KGkSpYuK7sgq24G1As8ftzrIo5rti/JbqiykhlyXFgf5 JiFMXxcYB46QQFKQLv51qlcLKR76vvmZMb850QW7WDRNCv1NaxCNfhN2NIpuCsEwtQRA JYZ11SzpZo2SicOb9h7OS9vCAlbNGmdFze4CGAGhwV0j4O0j/rpfoiv/+o2MnCtivnfR wOPs4SM40cggEScQYnNGPwtxAehpP1Tv1FczsjQINj/xGtGPVshdS9ySoOiEKKNcWYuu itY6TkXQOduNJ0j/lIG1r7bOP4MKbPQ72ef0+U50YJ1YHj7gVznkrbm1d37kUAjurMrI 8TXQ== X-Gm-Message-State: APjAAAXQ56GkXLcwBCBnG/O/fGmPNIHRqrJcbGnjZ9X5LtmjBGifsg+b 6oHsot2LswliCmgOb6DWkFS3Xu+4Wg== X-Google-Smtp-Source: APXvYqzG8a5/BqVOShp3MMjA8cBOESjkC8SFtqntj1uGWf40TDhUIGK4H9QgRbGE2/PDdzHrHHNLYw== X-Received: by 2002:a9d:3b26:: with SMTP id z35mr17205216otb.182.1569930186825; Tue, 01 Oct 2019 04:43:06 -0700 (PDT) Received: from localhost (24-155-109-49.dyn.grandenetworks.net. [24.155.109.49]) by smtp.gmail.com with ESMTPSA id q199sm5116011oic.16.2019.10.01.04.43.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 01 Oct 2019 04:43:06 -0700 (PDT) Date: Tue, 1 Oct 2019 06:43:05 -0500 From: Rob Herring To: Gareth Williams Cc: Mark Brown , Mark Rutland , Phil Edworthy , Geert Uytterhoeven , linux-spi@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Gareth Williams Subject: Re: [PATCH v2 1/4] dt: spi: Add Renesas RZ/N1 binding documentation Message-ID: <20191001114305.GA27944@bogus> References: <1568793876-9009-1-git-send-email-gareth.williams.jx@renesas.com> <1568793876-9009-2-git-send-email-gareth.williams.jx@renesas.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1568793876-9009-2-git-send-email-gareth.williams.jx@renesas.com> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 18 Sep 2019 09:04:33 +0100, Gareth Williams wrote: > From: Phil Edworthy > > The Renesas RZ/N1 SPI Controller is based on the Synopsys DW SSI, but has > additional registers for software CS control and DMA. This patch does not > address the changes required for DMA support, it simply adds the compatible > string. The CS functionality is not very useful and also not needed as > Linux can use gpios for the CS signals. > > Add a compatible string to handle any unforeseen issues that may arise, and > pave the way for DMA support. > > Signed-off-by: Gareth Williams > Signed-off-by: Phil Edworthy > --- > Note: All the other manufacturers detail their compatible strings in > snps,dw-apb-ssi.txt. I think it makes sense for rzn1 to be in it's own file > due to the changes made to the peripheral for DMA support. > > v2: > - No changes. > --- > Documentation/devicetree/bindings/spi/renesas,rzn1-spi.txt | 11 +++++++++++ > 1 file changed, 11 insertions(+) > create mode 100644 Documentation/devicetree/bindings/spi/renesas,rzn1-spi.txt > Reviewed-by: Rob Herring