On Wed, Oct 03, 2012 at 16:46:39, Daniel Mack wrote: > On 03.10.2012 09:16, Hebbar, Gururaja wrote: > > On Wed, Oct 03, 2012 at 03:58:45, Daniel Mack wrote: > >> On 31.08.2012 14:50, Hebbar, Gururaja wrote: > >>> The OMAP2+ variant of McASP is different from Davinci variant w.r.to some > >>> register offset and missing generic SRAM APIs support > >>> > >>> Changes > >>> - Add new MCASP_VERSION_3 to identify new variant. New DT compatible > >>> "ti,omap2-mcasp-audio" to identify version 3 controller. > >>> - The register offsets are handled depending on the version. > >>> - Provide a config option to indicate missing SRAM API support. > >> > >> Could you give some insight which hardware this was tested on? I'm > >> trying to get this up and running on a AM33xx board, and the patches > >> look all reasonable to me. My problem is that I can't make the DMA > >> engine move forward, I fail to receive a single interrupt on this > >> peripheral after the stream starts. I will continue searching for the > >> reason of this tomorrow, but maybe you can give me some hint by > >> explaining your setup? > >> > >> Note that I'm using your patches together with Matt's from this series: > >> > >> https://github.com/ohporter/linux/tree/edma-dmaengine-am33xx-rfc-v1 > >> > >> ... but it doesn't work without those either. > > > > > > When I started working on adding DT support to McASP driver, Matt Porter > > EDMA port was not yet ready. > > > > So > > 1. I took existing edma driver from AM335x Arago release [1] (driver + edma > > device init). > > 2. Added this to Vaibhav's Local (linux-next + AM335x patches) tree [2] > > > > 3. Added DT support to McASP driver. > > > > I tested this on AM335x EVM board. > > Hmm, so I think there's a tiny bit missing for the EDMA conversion on DT > kernels. > > > If you need the code, I can share it as a patch (I will send the patch as a > > private mail since the patch is huge). > > Please do :) Or just push your entire tree somewhere.
I have pushed the code at below git repo Repo :https://github.com/hvaibhav/am335x-linux Branch : am335x-upstream-staging-audio This includes 1. (linux-next + AM335x patches) 2. McASP DT conversion 3. EDMA hack 4. AM335x audio specific DT blobs 5. Am335x dma DT blobs [hack] Kindly let me know if you need any more details. > > > Thanks, > Daniel > > Regards, Gururaja _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
