On Wed, Jun 19, 2013 at 01:48:15PM +0900, Inki Dae wrote: > > Related to HDMI sound support in Alsa, I have posted a working RFC > > "exynos-hdmi to CDF complaint display driver". It registers a separate > > sound card by registering hdmi audio codec dai and cpu-dai, as you > > mentioned. But there is a problem with this approach that I2S being the > > single cpu dai for HDMI and Speaker sound card, only one card can > > support playback at a time. > > I would like to work on this to provide a more refined solution. > Thanks. However, I think it's not good to use the CDF framework to interface > between ALSA SoC DAI driver and DRM HDMI driver. The purpose of the CDF > framework is to provide common interfaces to display bus drivers to Linux > framebuffer and DRM KMS based display controller drivers as long as I know. > So my opinion is to implement ALSA Soc DAI driver-it seems like possible to > use as is-based on a new common framework that the other can also use it. You guys really want to be discussing this on the ALSA list and CCing the ASoC maintainers... I do note that OMAP and SH both have HDMI support in mainline, whatever they're doing seems like a good place to start.
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