On 3/5/2018 11:51 PM, Pandiyan, Dhinakaran wrote:
On Thu, 2018-01-04 at 00:48 +0530, Gaurav K Singh wrote:
From: Gaurav Singh <gaurav.k.si...@intel.com>

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.

Signed-off-by: Gaurav K Singh <gaurav.k.si...@intel.com>
Might be worth adding

Bspec: 21829

to the commit message.
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandi...@intel.com>

Please rebase and send this patch to the list to CI it.

Hi DK,
Sure, i have added Bspec index and sent the updated patch.


With regards,

  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 
index f1502a0188eb..c71c04e1c3f6 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))

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