From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sekhar Nori Subject: Re: [alsa-devel] DT support for Davinci ASoC platform Date: Fri, 6 Jul 2012 18:42:36 +0530 Message-ID: <4FF6E444.1050901@ti.com> References: <1BAFE6F6C881BF42822005164F1491C33EA35352@DBDE01.ent.ti.com> <4FF5733E.6000604@gmail.com> <201207051536.45920.arnd@arndb.de> <4FF5BB34.9070002@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <4FF5BB34.9070002-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: Errors-To: davinci-linux-open-source-bounces-VycZQUHpC/PFrsHnngEfi1aTQe2KTcn/@public.gmane.org To: Daniel Mack Cc: "alsa-devel-K7yf7f+aM1XWsZ/bQMPhNw@public.gmane.org" , Arnd Bergmann , "broonie-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org" , "davinci-linux-open-source-VycZQUHpC/PFrsHnngEfi1aTQe2KTcn/@public.gmane.org" , "alsa-user-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org" , "Girdwood, Liam" , linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org List-Id: alsa-devel@alsa-project.org Hi Daniel, On 7/5/2012 9:35 PM, Daniel Mack wrote: > On 05.07.2012 17:36, Arnd Bergmann wrote: >> On Thursday 05 July 2012, Daniel Mack wrote: >>> On 04.07.2012 14:48, Hebbar, Gururaja wrote: >>>> All, >>>> >>>> Are there any plans or work going on for providing Device Tree Support for Davinci >>>> ASoC? >>>> >>>> I am planning to add DT support for TI AM335x (McASP) and I don't want to do duplicate >>>> task. >>> >>> That's good to know. But isn't there a dependency on the EDMA engine? Is >>> that part ported yet? >> >> None of the dma engines are ported yet, because the generic binding for dma >> engines is still under debate. So far, all DMA channels are described using >> auxdata on platforms that use DT, with the exception of exynos, but that one >> will have to change once we have the common code. > > You're talking about the DT bindings here, right? But the code itself is > also only present in TI's BSP kernel sources, and not in mainline. AM335x uses TI EDMA which is present in mainline under mach-davinci. Matt Porter from TI is working on moving this to DMA engine. Once that's done the driver should be usable on AM335x too. Have a look at the wiki page Vaibhav posted under the thread "Current state of AM33xx patches" Thanks, Sekhar From mboxrd@z Thu Jan 1 00:00:00 1970 From: nsekhar@ti.com (Sekhar Nori) Date: Fri, 6 Jul 2012 18:42:36 +0530 Subject: [alsa-devel] DT support for Davinci ASoC platform In-Reply-To: <4FF5BB34.9070002@gmail.com> References: <1BAFE6F6C881BF42822005164F1491C33EA35352@DBDE01.ent.ti.com> <4FF5733E.6000604@gmail.com> <201207051536.45920.arnd@arndb.de> <4FF5BB34.9070002@gmail.com> Message-ID: <4FF6E444.1050901@ti.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi Daniel, On 7/5/2012 9:35 PM, Daniel Mack wrote: > On 05.07.2012 17:36, Arnd Bergmann wrote: >> On Thursday 05 July 2012, Daniel Mack wrote: >>> On 04.07.2012 14:48, Hebbar, Gururaja wrote: >>>> All, >>>> >>>> Are there any plans or work going on for providing Device Tree Support for Davinci >>>> ASoC? >>>> >>>> I am planning to add DT support for TI AM335x (McASP) and I don't want to do duplicate >>>> task. >>> >>> That's good to know. But isn't there a dependency on the EDMA engine? Is >>> that part ported yet? >> >> None of the dma engines are ported yet, because the generic binding for dma >> engines is still under debate. So far, all DMA channels are described using >> auxdata on platforms that use DT, with the exception of exynos, but that one >> will have to change once we have the common code. > > You're talking about the DT bindings here, right? But the code itself is > also only present in TI's BSP kernel sources, and not in mainline. AM335x uses TI EDMA which is present in mainline under mach-davinci. Matt Porter from TI is working on moving this to DMA engine. Once that's done the driver should be usable on AM335x too. Have a look at the wiki page Vaibhav posted under the thread "Current state of AM33xx patches" Thanks, Sekhar