Hi Russell, On Fri, Apr 27, 2012 at 4:58 PM, Russell King - ARM Linux <linux@xxxxxxxxxxxxxxxx> wrote: > Can someone please hint on what audio is supported on these two OMAP > boards? From what I can tell, the answer is either "nothing" or "hdmi", > both of which are useless to me if someone wants me to convert the OMAP > ASoC driver to DMA engine. > > From what I can see on the 4430SDP, there's a 3.5mm headset jack, > microphones and speakers on the board, so the board does have audio > hardware. However, it seems (as, I'm afraid to say, seems to be pretty > much standard practice with OMAP) there's a total lack of software > support in mainline. 3.4-rc have audio support for SDP4430/Blaze, PandaBoard4430, PandaBoardES (4460). OMAP3 support is there for a long time, not sure about 3430LDP, but the omap3-SDP, BeagleBoards, Nokia n900, Pandora have at least ASoC machine driver. > This kind'a prevents me testing changes to the DMA support for OMAP > ASoC... The ASoC driver for DMA: sound/soc/omap/omap-pcm.c We also have dma engine support in the ASoC core: sound/soc/soc-dmaengine-pcm.c It provides some level of abstraction for us to use DMA engine with audio. -- Péter -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
