Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752836Ab1CJNqJ (ORCPT ); Thu, 10 Mar 2011 08:46:09 -0500 Received: from opensource.wolfsonmicro.com ([80.75.67.52]:41816 "EHLO opensource2.wolfsonmicro.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752683Ab1CJNqI (ORCPT ); Thu, 10 Mar 2011 08:46:08 -0500 Date: Thu, 10 Mar 2011 13:46:05 +0000 From: Mark Brown To: "Cai, Cliff" Cc: Cliff Cai , Mike Frysinger , "alsa-devel@alsa-project.org" , "linux-kernel@vger.kernel.org" , "device-drivers-devel@blackfin.uclinux.org" , "akpm@linux-foundation.org" , "lrg@slimlogic.co.uk" Subject: Re: [alsa-devel] [Device-drivers-devel] [PATCH] Add driver for Analog Devices ADAU1701 SigmaDSP Message-ID: <20110310134605.GC22195@opensource.wolfsonmicro.com> References: <1299460302-15392-1-git-send-email-cliff.cai@analog.com> <20110307114142.GB13471@opensource.wolfsonmicro.com> <20110307121502.GG13471@opensource.wolfsonmicro.com> <20110309100055.GB6923@opensource.wolfsonmicro.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Cookie: Snow Day -- stay home. User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1004 Lines: 20 On Thu, Mar 10, 2011 at 04:45:48AM -0500, Cai, Cliff wrote: > >If there is default firmware then even if it's not > >particularly useful the kernel should probably not *require* > >that additional firmware is provided during driver startup - > I'm afraid it's not the real use case,the test mode just for test, > In practice,people always want the DSP to run some algrithm at the beginning, > Although they may change it later. I'd be surprised if people wanted to actually play audio through a passthrough firmware in a shipping system but consider cases like board bringup (where just verifying that everything is physically connected is useful) and early boot (where you might not have mounted all filesystems yet but the driver is trying to start up). -- 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/