[alsa-devel] [PATCH 4/7] Alchemy: DB1200 AC97+I2S audio support.
manuel.lauss at googlemail.com
Mon Jun 8 14:21:18 CEST 2009
> You should convert the DAI drivers to probe as normal platform devices
> and attach the resources used by the CPU to those devices rather than
> attaching the data to soc-audio. pxa2xx-ac97 does this, as do the
> PowerPC drivers and the s3c64xx-i2s driver. The DaVinci drivers
> currently on the davinci branch of my git for merge after the merge
> window do this too.
I see now what you mean, but this is ugly as sin:
I now need to register 2 platform devices in the board code: 1 for the DAI
(with resources mmio + irq) and 1 for the DMA engine (with ddma id resources),
or register the DMA engine device from within the AC97/I2S drivers.
This is in my opinion even worse than the current scheme, which at least allows
me to group all PSC resources into one struct resource which all audio-related
drivers can share without too much uglyness.
More information about the Alsa-devel