diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2023-04-17 16:17:26 +0300 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2023-04-18 21:18:31 +0300 |
| commit | d28cdc43b43b77287d7839ef1b94fdaa24d2a444 (patch) | |
| tree | ed2e569fd2d910d6b88dbe986300f179e46039ee /drivers/gpu/drm/i915/i915_irq.h | |
| parent | 40d06b0fae915ec8bbfbde69ee1cfb2d9a2b7a53 (diff) | |
drm/i915: Introduce intel_hpd_enable_detection()
Add a mechanism by which we can enable the HPD sense for
individual encoders.
This will be used during eDP probing to figure out if
anything is actually connected. The normal intel_hpd_irq_setup()
thing doesn't work since we only do that after probing the
outputs, and we only enable HPD sense for encoders that were
successfully probed.
The other idea that crossed my minds was to just turn on
HPD sense for all pins before output probing and let hpd_irq_setup()
clean it up afterwards. But that doesn't work for BXT/GLK where
the HPD invert information comes from the VBT child device.
So looks like this really needs to be per-encoder.
v2: Give it a better name (Jani)
v3: Deal with mtl
Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com> #v2
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230417131728.7705-3-ville.syrjala@linux.intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/i915_irq.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_irq.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_irq.h b/drivers/gpu/drm/i915/i915_irq.h index 03ee4c8b1ed3..3717a66f97c6 100644 --- a/drivers/gpu/drm/i915/i915_irq.h +++ b/drivers/gpu/drm/i915/i915_irq.h @@ -17,6 +17,7 @@ struct drm_device; struct drm_display_mode; struct drm_i915_private; struct intel_crtc; +struct intel_encoder; struct intel_uncore; void intel_irq_init(struct drm_i915_private *dev_priv); @@ -37,6 +38,7 @@ i915_disable_pipestat(struct drm_i915_private *dev_priv, enum pipe pipe, void valleyview_enable_display_irqs(struct drm_i915_private *dev_priv); void valleyview_disable_display_irqs(struct drm_i915_private *dev_priv); +void intel_hpd_enable_detection(struct intel_encoder *encoder); void intel_hpd_irq_setup(struct drm_i915_private *i915); void i915_hotplug_interrupt_update(struct drm_i915_private *dev_priv, u32 mask, |