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

Gaurav K Singh gaurav.k.singh at intel.com
Fri Mar 9 15:54:45 UTC 2018


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.

Bspec: 21829
Tested on apollolake chromebook by stress test warm reboot
with 2500 iterations.

v2:
* Mention Bspec Index in commit message(Dhinakaran Pandiyan)

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);
-- 
1.9.1



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