On Thu, Jul 28, 2016 at 04:57:32PM +0100, Mark Brown wrote:

quoted

The codec driver should control the mclk. So this patch adds this support.

quoted

+	/* Check if MCLK provided */
+	rt5659->mclk = devm_clk_get(&i2c->dev, "mclk");
+	if (IS_ERR(rt5659->mclk)) {
+		if (PTR_ERR(rt5659->mclk) == -EPROBE_DEFER)
+			return -EPROBE_DEFER;
+		/* Otherwise mark the mclk pointer to NULL */
+		rt5659->mclk = NULL;
+	}

This device seems to be used on x86 systems so we'll need to ensure that
they register clocks for this.  They really should set this up using
quirks keyed off DMI information or similar so it's hidden from other
systems.

Hmm..the change defines this mclk as a optional property so I'm
not sure how it would affect x86 systems. (Would love to refine
it to make it impactless.) Since it's literally hidden, any way
that I can manually ensure it? Or just wait for an ack from x86
developers?

Thanks
Nicolin
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