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Subject[PATCH 1/1] hda_intel: switch Intel chipsets to COMBO position_fix
Date
This patch implements the COMBO position_fix for recent Intel client chipsets.

Signed-off-by: Seth Heasley <seth.heasley@intel.com>
---
sound/pci/hda/hda_intel.c | 11 ++++++++---
1 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 2b6392b..466a88c 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -535,6 +535,7 @@ enum {
#define AZX_DCAPS_BUFSIZE (1 << 21) /* no buffer size alignment */
#define AZX_DCAPS_ALIGN_BUFSIZE (1 << 22) /* buffer size alignment */
#define AZX_DCAPS_4K_BDLE_BOUNDARY (1 << 23) /* BDLE in 4k boundary */
+#define AZX_DCAPS_POSFIX_COMBO (1 << 24) /* Use COMBO as default */

/* quirks for ATI SB / AMD Hudson */
#define AZX_DCAPS_PRESET_ATI_SB \
@@ -2728,6 +2729,10 @@ static int __devinit check_position_fix(struct azx *chip, int fix)
snd_printd(SFX "Using LPIB position fix\n");
return POS_FIX_LPIB;
}
+ if (chip->driver_caps & AZX_DCAPS_POSFIX_COMBO) {
+ snd_printd(SFX "Using COMBO position fix\n");
+ return POS_FIX_COMBO;
+ }
return POS_FIX_AUTO;
}

@@ -3240,7 +3245,7 @@ static DEFINE_PCI_DEVICE_TABLE(azx_ids) = {
/* CPT */
{ PCI_DEVICE(0x8086, 0x1c20),
.driver_data = AZX_DRIVER_PCH | AZX_DCAPS_SCH_SNOOP |
- AZX_DCAPS_BUFSIZE },
+ AZX_DCAPS_BUFSIZE | AZX_DCAPS_POSFIX_COMBO },
/* PBG */
{ PCI_DEVICE(0x8086, 0x1d20),
.driver_data = AZX_DRIVER_PCH | AZX_DCAPS_SCH_SNOOP |
@@ -3248,11 +3253,11 @@ static DEFINE_PCI_DEVICE_TABLE(azx_ids) = {
/* Panther Point */
{ PCI_DEVICE(0x8086, 0x1e20),
.driver_data = AZX_DRIVER_PCH | AZX_DCAPS_SCH_SNOOP |
- AZX_DCAPS_BUFSIZE},
+ AZX_DCAPS_BUFSIZE | AZX_DCAPS_POSFIX_COMBO },
/* Lynx Point */
{ PCI_DEVICE(0x8086, 0x8c20),
.driver_data = AZX_DRIVER_PCH | AZX_DCAPS_SCH_SNOOP |
- AZX_DCAPS_BUFSIZE},
+ AZX_DCAPS_BUFSIZE | AZX_DCAPS_POSFIX_COMBO },
/* SCH */
{ PCI_DEVICE(0x8086, 0x811b),
.driver_data = AZX_DRIVER_SCH | AZX_DCAPS_SCH_SNOOP |
--
1.7.4.4


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