[alsa-devel] [PATCH 1/2] powerpc: add platform registration for ALSA SoC drivers

Timur Tabi timur at freescale.com
Tue Apr 27 20:32:16 CEST 2010

Liam Girdwood wrote:

>> I would need some way for fsl_dma_open() to get a pointer to private,
>> DMA-specific data.  I'm not sure how I can do that.
> In multi-component we now have platform_data and device private data
> (from the regular driver model).

In that case, I still have the same problem with how to generate an 'id' based on a device tree node.  We have the idea of a 'phandle', which is a unique integer for a node, but there's no way to create phandles from within Linux.  They have to exist in the DTS first, and I'm loathe to modify the DTS.

Timur Tabi
Linux kernel developer at Freescale

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