From mboxrd@z Thu Jan 1 00:00:00 1970 From: Markus Pargmann Subject: Re: [alsa-devel] [PATCH] ASoC: fsl-ssi: fix SDMA starvation Date: Wed, 13 Nov 2013 13:16:30 +0100 Message-ID: <20131113121630.GH30263@pengutronix.de> References: <1384255056-25673-1-git-send-email-mpa@pengutronix.de> <52822529.5090502@tabi.org> <20131112132441.GG30263@pengutronix.de> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Content-Disposition: inline In-Reply-To: Sender: stable-owner@vger.kernel.org To: Timur Tabi Cc: alsa-devel mailing list , Juergen Beisert , Liam Girdwood , stable@vger.kernel.org, Mark Brown , Sascha Hauer , "linux-arm-kernel@lists.infradead.org" List-Id: alsa-devel@alsa-project.org Hi, On Tue, Nov 12, 2013 at 02:17:34PM -0600, Timur Tabi wrote: > On Tue, Nov 12, 2013 at 7:24 AM, Markus Pargmann = wrote: > > > > No, I don't have access on PowerPC hardware, so I didn't test it on > > PowerPC. >=20 > Can you change the code so that the interrupts are enabled only on > i.MX? On PowerPC, the interrupts are used only for debugging. Why is this necessary? The interrupts were enabled for all architectures before. However, this patch is wrong as J=C3=BCrgen mentioned, the SIER_FLAGS a= re written to the SIER register after we enable the DMA enable bits which leads to missing DMA enable bits at the end. I created a new patch to cleanup the whole interrupt flag setup. I will post it later. Regards, Markus --=20 Pengutronix e.K. | = | Industrial Linux Solutions | http://www.pengutronix.de/= | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 = | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-555= 5 |