RFC drm/i915: tell bios to update audio controller em4/5 values
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- v1 RFC Latest3 patches 2 repliesIn review
Patches in v1 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/3 | drm/i915: add opregion function to notify BIOS of CDCLK changesdrivers/ drivers/ | +35 | 1 reply | |
| 2/3 | drm/i915: add opregion function to enable/disable audio devicedrivers/ drivers/ | +16 | 0 replies | |
| 3/3 | drm/i915: tell BIOS to update audio controller EM4/EM5 divider valuesdrivers/ | +11 | 0 replies |
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Cover letter [RFC PATCH 0/3] drm/i915: tell bios to update audio controller em4/5 values
Hi Mengdong -
Here's the first drafts towards fixing [1], but unfortunately this is still Broadwell specific. Currently patch 2 is not needed, but is included in case we'll need that too (maybe for Haswell?). Please review/test, I don't have access to either hsw or bdw right now.
BR,
Jani.
[1] https://bugzilla.kernel.org/show_bug.cgi?id=74861
Jani Nikula (3):
drm/i915: add opregion function to notify BIOS of CDCLK changes drm/i915: add opregion function to enable/disable audio device drm/i915: tell BIOS to update audio controller EM4/EM5 divider values
drivers/gpu/drm/i915/i915_drv.h | 12 +++++++++++ drivers/gpu/drm/i915/intel_opregion.c | 39 +++++++++++++++++++++++++++++++++++ drivers/gpu/drm/i915/intel_pm.c | 11 ++++++++++ 3 files changed, 62 insertions(+)
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