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=-8.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,USER_AGENT_MUTT 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 860BAC43381 for ; Thu, 28 Feb 2019 19:53:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 57BE6218AE for ; Thu, 28 Feb 2019 19:53:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1551383603; bh=VHOZSt3/lGcwjw0jMV3D5wi+d80WAu1Ey4VzJKay0yY=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=UnKsFN+UW/sxwF+e1HYLnlna4AZySyqGEZOFHoLsez/m/S0tCWcmJSf0kiOD+9h8w 96+G3Bt5+YyNKh1EMX/yLTBRlCbV6g9zc6SkH8AaNFUK+ag0kt95MDdaAfbFONwwUo 2Jz5ZjSqM2TLOcZ8p7FrHITYqhJVEmkYCybks6HM= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388010AbfB1TxW (ORCPT ); Thu, 28 Feb 2019 14:53:22 -0500 Received: from mail-ot1-f67.google.com ([209.85.210.67]:39420 "EHLO mail-ot1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726231AbfB1TxV (ORCPT ); Thu, 28 Feb 2019 14:53:21 -0500 Received: by mail-ot1-f67.google.com with SMTP id e15so9242086otk.6; Thu, 28 Feb 2019 11:53:21 -0800 (PST) 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=VSH0ECHj/ABaHItasGXv6gcJGL6UIhUfL8xXvasQiBw=; b=D6YTga7UFz35jd/nS31kynv71yr6irq24HtLf+s/YJwwexZN8LmPqQhaQ3ryAoHbZX /XhR+P0HoV6gb3TquvMaWFiKglWFDQqy6XCT6JW5hRIOKCAmCZAj2grXzgqR7xOL0UY5 Sz5N4g0EiI+01y/P4tymWM7/+ekjOzRR3BR7ZzXOu9iEac6aqtIfXK1kz9Bjkf2+MkFT wSZLgLCB102PDt68hEMoFKjxpbe9HR1yE9TPp/OTwB5olzUOKt6GReQBBmOMJmJGiZMq TZwh1+UdjMZM+dlktBdz/gPD9ULSbB17JK8KxvjRdshKBpA3a4CQFMJ1QH9saB97OtNX ipCw== X-Gm-Message-State: APjAAAWcJ9dB4Js1BDmZ2/gidQhGoKPmqKlA4fbGmnmy5DNwwGhSt28k vGmM/SrIDpTxcQlHnIy/hg== X-Google-Smtp-Source: APXvYqzc5kyVhsn2GqpBakhlHjIjKBVm3Iouo8uT1dLj3QLCOOR8zkjzx7mmq5NTWrTgauEyDLULXA== X-Received: by 2002:a9d:6755:: with SMTP id w21mr869911otm.87.1551383600911; Thu, 28 Feb 2019 11:53:20 -0800 (PST) Received: from localhost ([2607:fb90:20de:307f:59ce:35b2:628:2365]) by smtp.gmail.com with ESMTPSA id o124sm1718250oif.14.2019.02.28.11.53.20 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Thu, 28 Feb 2019 11:53:20 -0800 (PST) Date: Thu, 28 Feb 2019 13:53:19 -0600 From: Rob Herring To: Baolin Wang Cc: gregkh@linuxfoundation.org, jslaby@suse.com, mark.rutland@arm.com, orsonzhai@gmail.com, zhang.lyra@gmail.com, broonie@kernel.org, lanqing.liu@unisoc.com, linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org Subject: Re: [PATCH 4/5] dt-bindings: serial: sprd: Add dma properties to support DMA mode Message-ID: <20190228195319.GA13133@bogus> References: <8f0a032f9bcce28bb0d147f9646950f64fc22a74.1550560916.git.baolin.wang@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <8f0a032f9bcce28bb0d147f9646950f64fc22a74.1550560916.git.baolin.wang@linaro.org> 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 Tue, Feb 19, 2019 at 03:31:14PM +0800, Baolin Wang wrote: > From: Lanqing Liu > > This patch adds dmas and dma-names properties for the UART DMA mode. > > Signed-off-by: Lanqing Liu > Signed-off-by: Baolin Wang > --- > .../devicetree/bindings/serial/sprd-uart.txt | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/Documentation/devicetree/bindings/serial/sprd-uart.txt b/Documentation/devicetree/bindings/serial/sprd-uart.txt > index 6eb5863..9ac28f6 100644 > --- a/Documentation/devicetree/bindings/serial/sprd-uart.txt > +++ b/Documentation/devicetree/bindings/serial/sprd-uart.txt > @@ -15,12 +15,18 @@ Required properties: > UART clock and source clock are optional properties, but enable clock > is required. > > +Optional properties: > +- dma-names: Should contain "tx" for transmit and "rx" for receive channels. The order here doesn't match the example. > +- dmas: A list of dma specifiers, one for each entry in dma-names. > + > Example: > uart0: serial@0 { > compatible = "sprd,sc9860-uart", > "sprd,sc9836-uart"; > reg = <0x0 0x100>; > interrupts = ; > + dma-names = "rx", "tx"; > + dmas = <&ap_dma 19 19>, <&ap_dma 20 20>; > clock-names = "enable", "uart", "source"; > clocks = <&clk_ap_apb_gates 9>, <&clk_uart0>, <&ext_26m>; > }; > -- > 1.7.9.5 >