[alsa-devel] hda: Is it ok to enable SND_HDA_I915 to support Haswell Gfx power well by default?

Takashi Iwai tiwai at suse.de
Tue Aug 27 11:57:23 CEST 2013

At Tue, 27 Aug 2013 11:38:11 +0200,
David Henningsson wrote:
> On 08/27/2013 11:32 AM, Lin, Mengdong wrote:
> > Hi Takashi and David,
> > 
> >  
> > 
> > Is it okay to enable SND_HDA_I915 by default?
> I think it should be automatically enabled if the user has selected both
> of snd-hda-intel and i915. And I thought it already was, but I haven't
> checked so I might very well be wrong.

It's not set to default=y.  But, it'd be even easier to get rid of the
user selection like below.


diff --git a/sound/pci/hda/Kconfig b/sound/pci/hda/Kconfig
index 59c5e9c..8de66cc 100644
--- a/sound/pci/hda/Kconfig
+++ b/sound/pci/hda/Kconfig
@@ -152,14 +152,9 @@ config SND_HDA_CODEC_HDMI
 	  This module is automatically loaded at probing.
 config SND_HDA_I915
-	bool "Build Display HD-audio controller/codec power well support for i915 cards"
+	bool
+	default y
 	depends on DRM_I915
-	help
-	  Say Y here to include full HDMI and DisplayPort HD-audio controller/codec
-	  power-well support for Intel Haswell graphics cards based on the i915 driver.
-	  Note that this option must be enabled for Intel Haswell C+ stepping machines, otherwise
-	  the GPU audio controller/codecs will not be initialized or damaged when exit from S3 mode.
 	bool "Build Cirrus Logic codec support"

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