linux-kernel - [PATCH 3.12 017/123] ALSA: hda_intel: add AZX_DCAPS_I915

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Date:	Tue,  4 Aug 2015 16:39:21 +0200
From:	Jiri Slaby <jslaby@...e.cz>
To:	stable@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, Libin Yang <libin.yang@...el.com>,
	Takashi Iwai <tiwai@...e.de>, Jiri Slaby <jslaby@...e.cz>
Subject: [PATCH 3.12 017/123] ALSA: hda_intel: add AZX_DCAPS_I915_POWERWELL for SKL and BSW

From: Libin Yang <libin.yang@...el.com>

3.12-stable review patch.  If anyone has any objections, please let me know.

===============

commit 2d846c74027231264e57e4e34faf9576394e3ce0 upstream.

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@...el.com>
Signed-off-by: Takashi Iwai <tiwai@...e.de>
Signed-off-by: Jiri Slaby <jslaby@...e.cz>
---
 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 ab4b984ef607..c4ab8787273e 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -622,8 +622,12 @@ enum {
 	 AZX_DCAPS_COUNT_LPIB_DELAY | AZX_DCAPS_PM_RUNTIME | \
 	 AZX_DCAPS_I915_POWERWELL)
 
+#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 \
@@ -4119,7 +4123,7 @@ static DEFINE_PCI_DEVICE_TABLE(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 },
 	/* ICH */
 	{ PCI_DEVICE(0x8086, 0x2668),
 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_OLD_SSYNC |
-- 
2.5.0

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