[alsa-devel] [PATCH] ALSA: hda_intel: add AZX_DCAPS_I915_POWERWELL for SKL and BSW

[libin.yang at intel.com]

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

HDMI/DP codec on SKL/BSW is in the power well.
The power well must be turned on before probing the
HDMI/DP codec.

This is a temporary patch, which will power on the
powerwell by adding AZX_DCAPS_I915_POWERWELL for SKL
and BSW. After restructuring and new flag is added,
this patch will be reverted.

Signed-off-by: Libin Yang <libin.yang at intel.com>
---
 sound/pci/hda/hda_intel.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 15a8299..e1c2105 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -297,8 +297,12 @@ enum {
 	 AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_POWERWELL |\
 	 AZX_DCAPS_SNOOP_TYPE(SCH))
 
+#define AZX_DCAPS_INTEL_BRASWELL \
+	(AZX_DCAPS_INTEL_PCH | AZX_DCAPS_I915_POWERWELL)
+
 #define AZX_DCAPS_INTEL_SKYLAKE \
-	(AZX_DCAPS_INTEL_PCH | AZX_DCAPS_SEPARATE_STREAM_TAG)
+	(AZX_DCAPS_INTEL_PCH | AZX_DCAPS_SEPARATE_STREAM_TAG |\
+	 AZX_DCAPS_I915_POWERWELL)
 
 /* quirks for ATI SB / AMD Hudson */
 #define AZX_DCAPS_PRESET_ATI_SB \
@@ -1991,7 +1995,7 @@ static const struct pci_device_id azx_ids[] = {
 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
 	/* Braswell */
 	{ PCI_DEVICE(0x8086, 0x2284),
-	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
+	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BRASWELL },
 	/* ICH6 */
 	{ PCI_DEVICE(0x8086, 0x2668),
 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
-- 
1.9.1