From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757805AbdKOOG4 (ORCPT ); Wed, 15 Nov 2017 09:06:56 -0500 Received: from smtprelay.synopsys.com ([198.182.60.111]:39485 "EHLO smtprelay.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757039AbdKOOGu (ORCPT ); Wed, 15 Nov 2017 09:06:50 -0500 Subject: Re: [PATCH AUTOSEL for 4.9 44/56] ASoC: dwc: Fix PIO mode initialization To: Mark Brown References: <20171115024521.5884-1-alexander.levin@verizon.com> <20171115024521.5884-44-alexander.levin@verizon.com> <20171115105451.5alkuvqesolujgz7@sirena.org.uk> <5080331d-e70d-86ec-0865-27348189a634@synopsys.com> <20171115132058.uxk5uwc5ae55en6e@sirena.org.uk> CC: , "linux-kernel@vger.kernel.org" , "stable@vger.kernel.org" From: Jose Abreu Message-ID: <69e1c0a5-df54-222f-cc48-44ec85ea95b5@synopsys.com> Date: Wed, 15 Nov 2017 14:06:45 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.4.0 MIME-Version: 1.0 In-Reply-To: <20171115132058.uxk5uwc5ae55en6e@sirena.org.uk> Content-Type: text/plain; charset="windows-1252" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.107.19.85] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 15-11-2017 13:20, Mark Brown wrote: > > Why on earth would anyone use audio hardware without DMA in production > (or make it for that matter)? Not that it really matters. That was my thought while I was implementing this. I guess HW guys had their reasons. > Even if > there are users on stable presumably the they're already running with > something like this and it'll just conflict with this if it gets > backported? Probably yes. I was never contacted about this PIO driver so either they fixed it manually and never sent a patch or they are not using it. > The whole backport to enable a thing that never worked > aspect of this seems out of scope for stable. Ah, I reminded now that ARC PGU DRM driver (which is needed for I2S audio to work) is totally broken in 4.9 because of some DRM core changes and was never backported because the fix was simply too large. Yeah, I think given all these reasons we can drop this patch. Best Regards, Jose Miguel Abreu