APPLIED: [SRU] [Bionic/Unstable] [PATCH 0/1] Allow Raven Ridge's audio controller to be runtime suspended

[Khaled Elmously]

Applied to Bionic

On 2018-07-19 17:21:36 , Kai-Heng Feng wrote:
> BugLink: https://bugs.launchpad.net/bugs/1782540
> 
> [Impact]
> AMD Raven Ridge's audio controller doesn't get runtime suspended. It
> consumes unnecessary power.
> 
> [Test]
> With the patch, it can get runtime suspended and save ~1W for the
> system.
> It can also get runtime resumed correctly when doing audio input/output.
> 
> [Fix]
> Add AZX_DCAPS_PM_RUNTIME flag to let sound subsystem know it supports
> runtime PM.
> 
> [Regression Potential]
> Low. This change limits to Raven Ridge's audio controller
> 
> Kai-Heng Feng (1):
>   ALSA: hda: Add AZX_DCAPS_PM_RUNTIME for AMD Raven Ridge
> 
>  sound/pci/hda/hda_intel.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> -- 
> 2.17.1
> 
> 
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