[alsa-devel] [PATCH v3] ARM: kirkwood: extend the kirkwood i2s driver for DT usage
broonie at kernel.org
Tue Jul 23 15:20:16 CEST 2013
On Tue, Jul 23, 2013 at 02:59:06PM +0200, Sebastian Hesselbarth wrote:
> On 07/23/13 14:34, Mark Brown wrote:
> >As others have pointed out if you need to change the clock get code
> >there's something wrong here, DT should be handled transparently by the
> >clock API.
> IMHO the reason why of_clk_get() was/is mis-used in that way is mostly
> compatibility with legacy platform_data based setup.
I'm sorry, but this doesn't make a great deal of sense to me. Can you
be more specific?
> As Sascha Hauer pointed out, clocks should be distinguished by names
> (clock-names property) instead of position and then use
> devm_clk_get(&pdev->dev, "internal") and
> devm_clk_get(&pdev->dev, "external") respectively.
> This will possibly also require to update platform_data and legacy
> users of kirkwood-i2s or have different setup functions for non-DT
> and DT.
Why would this be required? The driver is already asking for multiple
> Also, while ASoC API separates the audio-controller into cpu-side
> and codec-side parts, the DT should not. IIRC and as Russell repeated
You mean DAI and DMA here? I already commented on that in my review of
the DMA binding.
> again, we mentioned to merge kirkwood-i2s.c and kirkwood-dma.c into
> a single file, didn't we?
That's been discussed several times but nobody's actually done it.
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