[Intel-gfx] [PATCH] drm/i915: Fix audio issue on BXT

[Pandiyan, Dhinakaran]

On Thu, 2018-04-05 at 22:12 +0530, Gaurav K Singh wrote:
> On Apollolake, with stress test warm reboot, audio card
> was not getting enumerated after reboot. This was a
> spurious issue happening on Apollolake. HW codec and
> HD audio controller link was going out of sync for which
> there was a fix in i915 driver but was not getting invoked
> for BXT. Extending this fix to BXT as well.
> 
> Tested on apollolake chromebook by stress test warm reboot
> with 2500 iterations.
> 
> Bspec: 21829
> 

R-B stands.

Btw, it would be easier to spot this patch and pick this up for merging
if you did not send this as a reply. I guess that's okay this time?
Also, a minor nitpick, "drm/i915/audio" would have been a more
appropriate prefix for the patch subject.



> Signed-off-by: Gaurav K Singh <gaurav.k.singh at intel.com>
> Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan at intel.com>
> ---
>  drivers/gpu/drm/i915/intel_audio.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_audio.c b/drivers/gpu/drm/i915/intel_audio.c
> index 709d6ca68074..656f6c931341 100644
> --- a/drivers/gpu/drm/i915/intel_audio.c
> +++ b/drivers/gpu/drm/i915/intel_audio.c
> @@ -729,7 +729,7 @@ static void i915_audio_component_codec_wake_override(struct device *kdev,
>  	struct drm_i915_private *dev_priv = kdev_to_i915(kdev);
>  	u32 tmp;
>  
> -	if (!IS_GEN9_BC(dev_priv))
> +	if (!IS_GEN9_BC(dev_priv) && !IS_BROXTON(dev_priv))
>  		return;
>  
>  	i915_audio_component_get_power(kdev);