In the end we already enabled the sync-write mode for most of HD-audio
controllers including Intel, and it's no big merit to keep the async
write mode for the rest. Let's make it as default and drop the
superfluous AZX_DCAPS_SYNC_WRITE bit flag.
Also, avoid to set the allow_bus_reset flag, which is a quite unstable
and hackish behavior that was needed only for some early platforms
(decades ago). The straight fallback to the single cmd mode is more
robust.
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
---
sound/pci/hda/hda_controller.c | 11 ++---------
sound/pci/hda/hda_controller.h | 2 +-
sound/pci/hda/hda_intel.c | 16 +++++++---------
3 files changed, 10 insertions(+), 19 deletions(-)
diff --git a/sound/pci/hda/hda_controller.c b/sound/pci/hda/hda_controller.c
index 9765652a73d7..80016b7b6849 100644
--- a/sound/pci/hda/hda_controller.c
+++ b/sound/pci/hda/hda_controller.c
@@ -1202,15 +1202,8 @@ int azx_bus_init(struct azx *chip, const char *model)
if (chip->driver_caps & AZX_DCAPS_4K_BDLE_BOUNDARY)
bus->core.align_bdle_4k = true;
- /* AMD chipsets often cause the communication stalls upon certain
- * sequence like the pin-detection. It seems that forcing the synced
- * access works around the stall. Grrr...
- */
- if (chip->driver_caps & AZX_DCAPS_SYNC_WRITE) {
- dev_dbg(chip->card->dev, "Enable sync_write for stable communication\n");
- bus->core.sync_write = 1;
- bus->allow_bus_reset = 1;
- }
+ /* enable sync_write flag for stable communication as default */
+ bus->core.sync_write = 1;
return 0;
}
diff --git a/sound/pci/hda/hda_controller.h b/sound/pci/hda/hda_controller.h
index 82e26442724b..fe171685492d 100644
--- a/sound/pci/hda/hda_controller.h
+++ b/sound/pci/hda/hda_controller.h
@@ -33,7 +33,7 @@
#define AZX_DCAPS_POSFIX_LPIB (1 << 16) /* Use LPIB as default */
#define AZX_DCAPS_AMD_WORKAROUND (1 << 17) /* AMD-specific workaround */
#define AZX_DCAPS_NO_64BIT (1 << 18) /* No 64bit address */
-#define AZX_DCAPS_SYNC_WRITE (1 << 19) /* sync each cmd write */
+/* 19 unused */
#define AZX_DCAPS_OLD_SSYNC (1 << 20) /* Old SSYNC reg for ICH */
#define AZX_DCAPS_NO_ALIGN_BUFSIZE (1 << 21) /* no buffer size alignment */
/* 22 unused */
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 3565e2ab0965..b2bd21f5a52e 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -283,13 +283,12 @@ enum {
/* quirks for old Intel chipsets */
#define AZX_DCAPS_INTEL_ICH \
- (AZX_DCAPS_OLD_SSYNC | AZX_DCAPS_NO_ALIGN_BUFSIZE |\
- AZX_DCAPS_SYNC_WRITE)
+ (AZX_DCAPS_OLD_SSYNC | AZX_DCAPS_NO_ALIGN_BUFSIZE)
/* quirks for Intel PCH */
#define AZX_DCAPS_INTEL_PCH_BASE \
(AZX_DCAPS_NO_ALIGN_BUFSIZE | AZX_DCAPS_COUNT_LPIB_DELAY |\
- AZX_DCAPS_SNOOP_TYPE(SCH) | AZX_DCAPS_SYNC_WRITE)
+ AZX_DCAPS_SNOOP_TYPE(SCH))
/* PCH up to IVB; no runtime PM; bind with i915 gfx */
#define AZX_DCAPS_INTEL_PCH_NOPM \
@@ -304,13 +303,13 @@ enum {
#define AZX_DCAPS_INTEL_HASWELL \
(/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_COUNT_LPIB_DELAY |\
AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_COMPONENT |\
- AZX_DCAPS_SNOOP_TYPE(SCH) | AZX_DCAPS_SYNC_WRITE)
+ AZX_DCAPS_SNOOP_TYPE(SCH))
/* Broadwell HDMI can't use position buffer reliably, force to use LPIB */
#define AZX_DCAPS_INTEL_BROADWELL \
(/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_POSFIX_LPIB |\
AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_COMPONENT |\
- AZX_DCAPS_SNOOP_TYPE(SCH) | AZX_DCAPS_SYNC_WRITE)
+ AZX_DCAPS_SNOOP_TYPE(SCH))
#define AZX_DCAPS_INTEL_BAYTRAIL \
(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_I915_COMPONENT)
@@ -321,19 +320,18 @@ enum {
#define AZX_DCAPS_INTEL_SKYLAKE \
(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME |\
- AZX_DCAPS_SYNC_WRITE |\
AZX_DCAPS_SEPARATE_STREAM_TAG | AZX_DCAPS_I915_COMPONENT)
#define AZX_DCAPS_INTEL_BROXTON AZX_DCAPS_INTEL_SKYLAKE
/* quirks for ATI SB / AMD Hudson */
#define AZX_DCAPS_PRESET_ATI_SB \
- (AZX_DCAPS_NO_TCSEL | AZX_DCAPS_SYNC_WRITE | AZX_DCAPS_POSFIX_LPIB |\
+ (AZX_DCAPS_NO_TCSEL | AZX_DCAPS_POSFIX_LPIB |\
AZX_DCAPS_SNOOP_TYPE(ATI))
/* quirks for ATI/AMD HDMI */
#define AZX_DCAPS_PRESET_ATI_HDMI \
- (AZX_DCAPS_NO_TCSEL | AZX_DCAPS_SYNC_WRITE | AZX_DCAPS_POSFIX_LPIB|\
+ (AZX_DCAPS_NO_TCSEL | AZX_DCAPS_POSFIX_LPIB|\
AZX_DCAPS_NO_MSI64)
/* quirks for ATI HDMI with snoop off */
@@ -342,7 +340,7 @@ enum {
/* quirks for AMD SB */
#define AZX_DCAPS_PRESET_AMD_SB \
- (AZX_DCAPS_NO_TCSEL | AZX_DCAPS_SYNC_WRITE | AZX_DCAPS_AMD_WORKAROUND |\
+ (AZX_DCAPS_NO_TCSEL | AZX_DCAPS_AMD_WORKAROUND |\
AZX_DCAPS_SNOOP_TYPE(ATI) | AZX_DCAPS_PM_RUNTIME)
/* quirks for Nvidia */
--
2.25.0
