Merge tag 'sound-3.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Just a couple of fixes for the new Intel Skylake HD-audio support"

* tag 'sound-3.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda_intel: apply the Seperate stream_tag for Skylake
  ALSA: hda_controller: Separate stream_tag for input and output streams.

3 files changed, 27 insertions, 3 deletions

diff --git a/sound/pci/hda/hda_controller.c b/sound/pci/hda/hda_controller.c
index 8276a743e22e..0cfc9c8c4b4e 100644
--- a/sound/pci/hda/hda_controller.c
+++ b/sound/pci/hda/hda_controller.c
@@ -1922,10 +1922,18 @@ int azx_mixer_create(struct azx *chip)
 EXPORT_SYMBOL_GPL(azx_mixer_create);
 
 
+static bool is_input_stream(struct azx *chip, unsigned char index)
+{
+        return (index >= chip->capture_index_offset &&
+                index < chip->capture_index_offset + chip->capture_streams);
+}
+
 /* initialize SD streams */
 int azx_init_stream(struct azx *chip)
 {
         int i;
+        int in_stream_tag = 0;
+        int out_stream_tag = 0;
 
         /* initialize each stream (aka device)
          * assign the starting bdl address to each stream (device)
@@ -1938,9 +1946,21 @@ int azx_init_stream(struct azx *chip)
                 azx_dev->sd_addr = chip->remap_addr + (0x20 * i + 0x80);
                 /* int mask: SDI0=0x01, SDI1=0x02, ... SDO3=0x80 */
                 azx_dev->sd_int_sta_mask = 1 << i;
-                /* stream tag: must be non-zero and unique */
                 azx_dev->index = i;
-                azx_dev->stream_tag = i + 1;
+
+                /* stream tag must be unique throughout
+                 * the stream direction group,
+                 * valid values 1...15
+                 * use separate stream tag if the flag
+                 * AZX_DCAPS_SEPARATE_STREAM_TAG is used
+                 */
+                if (chip->driver_caps & AZX_DCAPS_SEPARATE_STREAM_TAG)
+                        azx_dev->stream_tag =
+                                is_input_stream(chip, i) ?
+                                ++in_stream_tag :
+                                ++out_stream_tag;
+                else
+                        azx_dev->stream_tag = i + 1;
         }
 
         return 0;
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 2bf0b568e3de..d426a0bd6a5f 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -299,6 +299,9 @@ enum {
          AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_POWERWELL |\
          AZX_DCAPS_SNOOP_TYPE(SCH))
 
+#define AZX_DCAPS_INTEL_SKYLAKE \
+        (AZX_DCAPS_INTEL_PCH | AZX_DCAPS_SEPARATE_STREAM_TAG)
+
 /* quirks for ATI SB / AMD Hudson */
 #define AZX_DCAPS_PRESET_ATI_SB \
         (AZX_DCAPS_NO_TCSEL | AZX_DCAPS_SYNC_WRITE | AZX_DCAPS_POSFIX_LPIB |\
@@ -2027,7 +2030,7 @@ static const struct pci_device_id azx_ids[] = {
           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
         /* Sunrise Point-LP */
         { PCI_DEVICE(0x8086, 0x9d70),
-          .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
+          .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
         /* Haswell */
         { PCI_DEVICE(0x8086, 0x0a0c),
           .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
diff --git a/sound/pci/hda/hda_priv.h b/sound/pci/hda/hda_priv.h
index aa484fdf4338..166e3e84b963 100644
--- a/sound/pci/hda/hda_priv.h
+++ b/sound/pci/hda/hda_priv.h
@@ -171,6 +171,7 @@ enum { SDI0, SDI1, SDI2, SDI3, SDO0, SDO1, SDO2, SDO3 };
 #define AZX_DCAPS_I915_POWERWELL (1 << 27)      /* HSW i915 powerwell support */
 #define AZX_DCAPS_CORBRP_SELF_CLEAR (1 << 28)   /* CORBRP clears itself after reset */
 #define AZX_DCAPS_NO_MSI64      (1 << 29)       /* Stick to 32-bit MSIs */
+#define AZX_DCAPS_SEPARATE_STREAM_TAG   (1 << 30) /* capture and playback use separate stream tag */
 
 enum {
         AZX_SNOOP_TYPE_NONE ,