On 03/23/2016 12:58 PM, pascal.huerst@gmail.com wrote:
From: Pascal Huerst pascal.huerst@gmail.com
Instead of checking if mclk/lrclk ratio has changed, check if sample rate has changed. In certain cases, the mclk might be changed in the machine driver, which can lead to the same mclk/lrclk ration, eventhow the sample rate has changed.
Since the codec has to be programmed differently for every sample rate, its better to check for samplerate changes instead of mclk/lrclk ration changes.
Mark's comment made me give this some additional though. Do we actually need to reset the device if the clkdiv did not change. Stopping the DSP, uploading the new firmware and then restarting it should be sufficient. But on the other hand the time the reset takes should be negligible compared to programming the firmware, so it might be ok to always do it. Let me know what you think.