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drm/i915/dp: Factor out intel_dp_get_active_pipes()

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Factor out a helper used by a follow up patch to reset an active DP
link.

No functional changes.

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230510103131.1618266-12-imre.deak@intel.com
This commit is contained in:
Imre Deak 2023-05-10 13:31:28 +03:00
parent f45156ff18
commit 7e4460c34b
1 changed files with 10 additions and 10 deletions
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20
drivers/gpu/drm/i915/display/intel_dp.c
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@ -4232,9 +4232,9 @@ static bool intel_dp_has_connector(struct intel_dp *intel_dp,
return false;
}
static int intel_dp_prep_link_retrain(struct intel_dp *intel_dp,
struct drm_modeset_acquire_ctx *ctx,
u8 *pipe_mask)
static int intel_dp_get_active_pipes(struct intel_dp *intel_dp,
struct drm_modeset_acquire_ctx *ctx,
u8 *pipe_mask)
{
struct drm_i915_private *i915 = dp_to_i915(intel_dp);
struct drm_connector_list_iter conn_iter;
@ -4243,9 +4243,6 @@ static int intel_dp_prep_link_retrain(struct intel_dp *intel_dp,
*pipe_mask = 0;
if (!intel_dp_needs_link_retrain(intel_dp))
return 0;
drm_connector_list_iter_begin(&i915->drm, &conn_iter);
for_each_intel_connector_iter(connector, &conn_iter) {
struct drm_connector_state *conn_state =
@ -4279,9 +4276,6 @@ static int intel_dp_prep_link_retrain(struct intel_dp *intel_dp,
}
drm_connector_list_iter_end(&conn_iter);
if (!intel_dp_needs_link_retrain(intel_dp))
*pipe_mask = 0;
return ret;
}
@ -4310,13 +4304,19 @@ int intel_dp_retrain_link(struct intel_encoder *encoder,
if (ret)
return ret;
ret = intel_dp_prep_link_retrain(intel_dp, ctx, &pipe_mask);
if (!intel_dp_needs_link_retrain(intel_dp))
return 0;
ret = intel_dp_get_active_pipes(intel_dp, ctx, &pipe_mask);
if (ret)
return ret;
if (pipe_mask == 0)
return 0;
if (!intel_dp_needs_link_retrain(intel_dp))
return 0;
drm_dbg_kms(&dev_priv->drm, "[ENCODER:%d:%s] retraining link\n",
encoder->base.base.id, encoder->base.name);