[Intel-gfx] [PATCH 09/11] drm/i915/dp: Factor out intel_dp_get_active_pipes()

Imre Deak
2023-04-26T16:53:35Z

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

No functional changes.

Signed-off-by: Imre Deak <imre.deak@intel.com>
---
drivers/gpu/drm/i915/display/intel_dp.c | 20 ++++++++++----------
1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 388e79f74621f..1e91175506f5d 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -4118,9 +4118,9 @@ 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;
@@ -4129,9 +4129,6 @@ 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 =
@@ -4165,9 +4162,6 @@ 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;
}

@@ -4196,13 +4190,19 @@ 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);

--
2.37.2