Re: [alsa-devel] [PATCH v2 05/11] ASoC: Add a set_bias_level() callback to the DAPM context struct

On Sun, Jun 22, 2014 at 10:56:00AM +0530, Vinod Koul wrote:

Even on DSPs loading firmware and power sequencing the DSP can get some help using these functions

I think I might find some use of this for my work!

Please be more specific about this - what do they offer that runtime PM and widgets don't offer?