On Sun, 15 May 2016 20:31:22 +0200
Maxime Ripard [off-list ref] wrote:

quoted

quoted

+void ccu_helper_wait_for_lock(struct ccu_common *common, u32 lock)
+{
+       u32 reg;
+
+       if (!(common->features & CCU_FEATURE_LOCK))
+               return;
+
+       WARN_ON(readl_relaxed_poll_timeout(common->base + common->reg, reg,
+                                          !(reg & lock), 0, 500));

                                    no delay between reads? ^

Yes, I intended it to be a simple busy waiting loop since I don't
expect it to be very long. Do yu have any more data on how much time
it usually takes?

I have a Soc in which the rate of the audio clock is stable after a
good second.

-- 
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