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| author |   Kai Vehmanen <kai.vehmanen@linux.intel.com> | 2019-10-03 11:55:30 +0300 |
|---|---|---|
| committer |   Jani Nikula <jani.nikula@intel.com> | 2019-10-04 15:41:31 +0300 |
| commit | 1580d3cdddbba4a5ef78a04a5289e32844e6af24 (patch) | |
| tree | 3b162033bc85b170f5717c5ec505f42e0aec73a6 /drivers/gpu/drm/i915/i915_reg.h | |
| parent | drm/i915/dp: remove static variable for aux last status (diff) | |
| download | linux-dev-1580d3cdddbba4a5ef78a04a5289e32844e6af24.tar.xz linux-dev-1580d3cdddbba4a5ef78a04a5289e32844e6af24.zip | |
drm/i915: Fix audio power up sequence for gen10+ display
On platfroms with gen10+ display, driver must set the enable bit of
AUDIO_PIN_BUF_CTL register before transactions with the HDA controller
can proceed. Add setting this bit to the audio power up sequence.
Failing to do this resulted in errors during display audio codec probe,
and failures during resume from suspend.
Note: We may also need to disable the bit afterwards, but there are
still unresolved issues with that.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=111214
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191003085531.30990-1-kai.vehmanen@linux.intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/i915_reg.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index eefd789b9a28..813ddea3f9f1 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -9133,6 +9133,8 @@ enum { #define SKL_AUD_CODEC_WAKE_SIGNAL (1 << 15) #define AUD_FREQ_CNTRL _MMIO(0x65900) +#define AUD_PIN_BUF_CTL _MMIO(0x48414) +#define AUD_PIN_BUF_ENABLE REG_BIT(31) /* * HSW - ICL power wells |