Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932413AbaGOFtj (ORCPT ); Tue, 15 Jul 2014 01:49:39 -0400 Received: from devils.ext.ti.com ([198.47.26.153]:55244 "EHLO devils.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751739AbaGOFtg (ORCPT ); Tue, 15 Jul 2014 01:49:36 -0400 Message-ID: <53C4C0EA.4070401@ti.com> Date: Tue, 15 Jul 2014 08:49:30 +0300 From: Peter Ujfalusi User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: abhijit naik , , Subject: Re: Support for ASP DM6446 in main-line Linux Kernel References: In-Reply-To: Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 07/14/2014 06:58 PM, abhijit naik wrote: > Hi, > > I am studying ASP driver of DM6446 EVM in main line kernel 3.14. > I referred to both sound/soc/davinci/davinci-mcasp.c > and sound/soc/davinci/davinci-i2s.c For DM6446 the correct driver would be the davinci-i2s. The audio interface is named as ASP in DM6446 which is an early version of McBSP - really basic IP (according to the TRMs). AFAIK there is no users of davinci-i2s in mainline and I do not have and I do not have HW where I can test it. Because of this lack of users there is no DT bindings for davinci-i2s - which should be renamed as davinci-asp IMHO. But the code looks like something which might work so at least w/o DT boot should be trivial to enable. If you look at arch/arm/mach-davinci/dm644x.c and board-dm644x-evm.c it is setting up davinci-mcbsp (which is implemented within davinci-i2s driver). So at least non DT boot should work with audio. > Which one among the two is correct for DM6446 ASP and I am seeing that there > is a device tree code in sound/soc/davinci/davinci-evm.c but corresponding > support code is not present in sound/soc/davinci/davinci-mcasp.c > > Please let me know whether this support is complete or can some one guide me > to working code for DM6446 ASP For what I see is that mainline should work with audio on dm644x-evm. -- P?ter -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/