On Thu, Nov 19, 2015 at 11:26:30AM +0800, Songjun Wu wrote:
> Set GCK's parent clock as audio clock, make
> sure the GCK's parent clock is audio clock.

> +	ret = clk_set_parent(dd->gclk, dd->aclk);
> +	if (ret) {
> +		dev_err(dev, "failed to set GCK parent clock: %d\n", ret);
> +		return ret;
> +	}

Why are we doing this in the driver?  This should be done by whatever
creates the clock tree, not by the driver that uses the clocks - that
way if some future SoC has a different clock tree the driver will
continue to work.