[PATCH (trusty SRU) 4/4] ALSA: hda - using POS_FIX_LPIB on Broadwell HDMI Audio

[David Henningsson]

From: Libin Yang <libin.yang at intel.com>

Broadwell HDMI can't use position buffer reliably, force to use LPIB

Signed-off-by: Libin Yang <libin.yang at intel.com>
Signed-off-by: Takashi Iwai <tiwai at suse.de>
(cherry picked from commit 54a0405dda574e1a4ab507cc5bf725a749fed688)
BugLink: https://bugs.launchpad.net/bugs/1188091
Signed-off-by: David Henningsson <david.henningsson at canonical.com>
---
 sound/pci/hda/hda_intel.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index b172630..dd3c015 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -619,6 +619,12 @@ enum {
 	 AZX_DCAPS_COUNT_LPIB_DELAY | AZX_DCAPS_PM_RUNTIME | \
 	 AZX_DCAPS_I915_POWERWELL)
 
+/* Broadwell HDMI can't use position buffer reliably, force to use LPIB */
+#define AZX_DCAPS_INTEL_BROADWELL \
+	(AZX_DCAPS_SCH_SNOOP | AZX_DCAPS_ALIGN_BUFSIZE | \
+	 AZX_DCAPS_POSFIX_LPIB | AZX_DCAPS_PM_RUNTIME | \
+	 AZX_DCAPS_I915_POWERWELL)
+
 /* quirks for ATI SB / AMD Hudson */
 #define AZX_DCAPS_PRESET_ATI_SB \
 	(AZX_DCAPS_ATI_SNOOP | AZX_DCAPS_NO_TCSEL | \
@@ -4010,7 +4016,7 @@ static DEFINE_PCI_DEVICE_TABLE(azx_ids) = {
 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
 	/* Broadwell */
 	{ PCI_DEVICE(0x8086, 0x160c),
-	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
+	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_BROADWELL },
 	/* 5 Series/3400 */
 	{ PCI_DEVICE(0x8086, 0x3b56),
 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM },
-- 
1.9.1