On Wed, Oct 3, 2012 at 2:57 PM, Hebbar, Gururaja <[email protected]> wrote: > 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.
What can be expected in 3.8? And what will have to wait for 3.9? Yegor _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
