diff options
| author | Kai Vehmanen <kai.vehmanen@linux.intel.com> | 2019-09-20 11:39:18 +0300 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2019-09-23 10:39:06 +0300 |
| commit | 87c1694533c947bf950251df3da04a32a05ede64 (patch) | |
| tree | 540d668bb0d73430c3dd36cec758cf92332e5e3d /drivers/gpu/drm/i915/i915_reg.h | |
| parent | 5dd85e72bc922379fec10969c9390a72aaa4746f (diff) | |
| download | linux-87c1694533c947bf950251df3da04a32a05ede64.tar.bz2 | |
drm/i915: save AUD_FREQ_CNTRL state at audio domain suspend
When audio power domain is suspended, the display driver must
save state of AUD_FREQ_CNTRL on Tiger Lake and Ice Lake
systems. The initial value of the register is set by BIOS and
is read by driver during the audio component init sequence.
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
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/20190920083918.27057-1-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 8649a3028963..6ecb64c042ef 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -9127,6 +9127,8 @@ enum { #define HSW_AUD_CHICKENBIT _MMIO(0x65f10) #define SKL_AUD_CODEC_WAKE_SIGNAL (1 << 15) +#define AUD_FREQ_CNTRL _MMIO(0x65900) + /* * HSW - ICL power wells * |