From b651bd2a3ae33f6a98d6ea36ef2518f5211bdc4f Mon Sep 17 00:00:00 2001
From: Gaurav K Singh <gaurav.k.singh@intel.com>
Date: Thu, 5 Apr 2018 22:12:24 +0530
Subject: [PATCH] drm/i915/audio: Fix audio enumeration issue on BXT
Git-commit: b651bd2a3ae33f6a98d6ea36ef2518f5211bdc4f
Patch-mainline: v4.18-rc1
References: FATE#326580

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

Signed-off-by: Gaurav K Singh <gaurav.k.singh@intel.com>
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1522946544-11524-1-git-send-email-gaurav.k.singh@intel.com
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/gpu/drm/i915/intel_audio.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- 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_w
 	struct drm_i915_private *dev_priv = kdev_to_i915(kdev);
 	u32 tmp;
 
-	if (!IS_GEN9(dev_priv))
+	if (!IS_GEN9(dev_priv) && !IS_BROXTON(dev_priv))
 		return;
 
 	i915_audio_component_get_power(kdev);