On Tue, Jan 27, 2009 at 04:28:35PM +0200, Peter Ujfalusi wrote:
On Tuesday 27 January 2009 16:03:16 ext Mark Brown wrote:
This one should be dealable with in-kernel without any work by applications - WM8350 does a similar dance (for different reasons), providing a shadow volume control while some of the amplifiers are powered off.
I'm going to check the code. But I think the driver still needs to keep on track of the bypass switch states in order to do the right thing.
I'd expet so - the main win would be to avoid having to have user space manually twiddle additional controls.
I suspect the increased power consumption here is due to the PLL being required to clock the DAC properly. Or you've transposed the figures :)
I have checked it several times, the numbers are correct. Probably the DAC clocking, but how it is working without the PLL on - because the bypass was working...
I'd imagine that it did actually have a clock (probably whatever clock would be input to the PLL), just not at the optimal rate.