Re: [PATCH V2] ASoC: SAMSUNG: Add sound card driver for Snow board

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On Thu, May 01, 2014 at 04:59:08PM +0530, Tushar Behera wrote:

> Okay, I will extend the existing clock driver to support XCLKOUT.

It may make more sense to add another clock driver for this clock
depending on how things are done, I don't know.

> Of the many parents of XCLKOUT, we need to set XXTI clock as the parent.
> Is it okay if we pass two clocks "mclk" (XCLKOUT) and "mclk_parent"
> (XXTI) to sound-card driver via DT and do the necessary reparenting
> during the sound-card driver probe call?

No, that's not OK at all, it won't allow for configuration of the
system.  This is what I was talking about when I was talking the clock
framework extensions to allow the clock tree to be configured using DT,
that would allow the settings to be put in DT.

> Else, we can push that change to bootloader (to set the XCLKOUT mux
> register) and only enable/disable the clock in sound-card driver.

That's not going to work given that the existing bootloaders don't do
this.

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