Received: by 2002:a25:8b91:0:0:0:0:0 with SMTP id j17csp397163ybl; Wed, 11 Dec 2019 01:22:57 -0800 (PST) X-Google-Smtp-Source: APXvYqxsDurTkfpcUn8eu6+MyIGDWzQ5d9mJkl8gJiCGb0z6YKe6MeVhKIz7MuXWYMuIbBVN3FYr X-Received: by 2002:aca:48d6:: with SMTP id v205mr1942421oia.10.1576056177690; Wed, 11 Dec 2019 01:22:57 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1576056177; cv=none; d=google.com; s=arc-20160816; b=EFB8snvPMBMtQfslefhyVm88zBTBMF/NMP9Rj0SHBWO407SQTPp5uPjtKSyvrHimGN IRs/u13mfLN0sKMMAQX3bTPRsYVwL4qfAS7CdypdwOuAj0dxe216KHrFmh7ZQCgjGafk 1Zc9LaQlhGShBNEPf/CN/3gE6DWiznvqJrPkPtohT7f+J78ek2rq3UVNijFkzSAawtud FTLrEnAn8x8YTD6FjBNnHqoRTEKlgk35ldjwnBHkpUu626SDQHC4jSZlAY1bBaJly3It IvXClR5h3J/Mss8X7LrvoHlNQXc0XWdLapbcDKSvLwYi5ZgzOkDqZ8RX623khhbzNuIH Vz1Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date:dkim-signature; bh=BZBnf/RgbNh+XXJALATCAhTroV4mEfYiE5rLVyrTX7Y=; b=GeNOtf5wVtf7yWJlcT9FJi/Q/eSq1LI3/YkeJ4lyDCHo40ra+mTP+ytegvzgT1Fopp zSCjCH1kSy0VmOuY59kAhNSKAB0ZX5mrtnc5Ql52ctEgfvTLn+6xnDZDaSbmlqtinJz3 rBTqwX1NhtSIxcfh/Rx1vNiE+W5HhRyGYiT6cWoVsPiErZyG+y5WtCRwgkA14wX8l2J+ LTutwKlEawqx0VM3Rv1OQy9ygzdOWbwpPsU0qCGHinVw+BcqHmWzdipEID0A/Fr9RBq/ oT7uE7dD+maqBX/17ajQ3rdpkPSd98s8VopZmMwaDYhqcbxiTKznpYppxRsqmoqHiK22 cuIQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=JnhSW1Jj; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id q127si793979oic.99.2019.12.11.01.22.45; Wed, 11 Dec 2019 01:22:57 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=JnhSW1Jj; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728487AbfLKJVF (ORCPT + 99 others); Wed, 11 Dec 2019 04:21:05 -0500 Received: from mail.kernel.org ([198.145.29.99]:33862 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726983AbfLKJVF (ORCPT ); Wed, 11 Dec 2019 04:21:05 -0500 Received: from dragon (98.142.130.235.16clouds.com [98.142.130.235]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 8A737214AF; Wed, 11 Dec 2019 09:21:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576056064; bh=gzDA3JJnu708N4xoucs8RAE4lUx+pZwj+RYMbSyB3LU=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=JnhSW1JjOn7hiWYurytdcwcMptqWolC9yyigMO0/FpxLCa5iiqrgR63k5Q2YHyQWG GcHfSJXjhE2NURShz8DRmpToqMSOurOrLthtFKiaBuJV1mzu0bqb7I4NPZHiyIa6wP i1gxUGE2PFeSIsKe4xTvrGaqsYRuTNSKJ8303yEU= Date: Wed, 11 Dec 2019 17:20:53 +0800 From: Shawn Guo To: Michael Walle Cc: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Li Yang , Rob Herring , Mark Rutland Subject: Re: [PATCH] arm64: dts: ls1028a: put SAIs into async mode Message-ID: <20191211092052.GX15858@dragon> References: <20191129210937.26808-1-michael@walle.cc> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20191129210937.26808-1-michael@walle.cc> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Nov 29, 2019 at 10:09:37PM +0100, Michael Walle wrote: > The LS1028A SoC has only unidirectional SAIs. Therefore, it doesn't make > sense to have the RX and TX part synchronous. Even worse, the RX part > wont work out of the box because by default it is configured as > synchronous to the TX part. And as said before, the pinmux of the SoC > can only be configured to route either the RX or the TX signals to the > SAI but never both at the same time. Thus configure the asynchronous > mode by default. > > Signed-off-by: Michael Walle Applied, thanks.