From mboxrd@z Thu Jan 1 00:00:00 1970 From: Takashi Iwai Subject: Re: [PATCH v3 1/3] ALSA: hdac: add link pm and ref counting Date: Fri, 13 May 2016 11:52:29 +0200 Message-ID: References: <1463023735-16981-1-git-send-email-vinod.koul@intel.com> <1463023735-16981-2-git-send-email-vinod.koul@intel.com> <20160513093446.GJ2274@localhost> Mime-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) by alsa0.perex.cz (Postfix) with ESMTP id 88F64260438 for ; Fri, 13 May 2016 11:52:30 +0200 (CEST) In-Reply-To: <20160513093446.GJ2274@localhost> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org To: Vinod Koul Cc: liam.r.girdwood@linux.intel.com, patches.audio@intel.com, alsa-devel@alsa-project.org, broonie@kernel.org, Jeeja KP List-Id: alsa-devel@alsa-project.org On Fri, 13 May 2016 11:34:46 +0200, Vinod Koul wrote: > > On Thu, May 12, 2016 at 08:58:53AM +0530, Vinod Koul wrote: > > The HDA links can be switched off when not is use, similarly > > command DMA can be stopped as well. This calls for a reference > > counting mechanism on the link by it's users to manage the link > > power. The DMA can be turned off when all links are off > > > > For this we add two APIs > > snd_hdac_ext_bus_link_get > > snd_hdac_ext_bus_link_put > > > > They help users to turn up/down link and manage the DMA as well > > Takashi, > > Does this look fine to you? If so can we have you ACK please.. Acked-by: Takashi Iwai Takashi