[Intel-gfx] [PATCH] drm/i915/display: Use initial_fastset_check() to compute and apply the initial PSR state

[José Roberto de Souza]

Replace the previous approach to force compute the initial PSR state
after i915 take over from firmware by the better and recently added
initial_fastset_check() hook.

Cc: Imre Deak <imre.deak at intel.com>
Signed-off-by: José Roberto de Souza <jose.souza at intel.com>
---
 drivers/gpu/drm/i915/display/intel_atomic.c  |  1 -
 drivers/gpu/drm/i915/display/intel_display.c |  2 -
 drivers/gpu/drm/i915/display/intel_dp.c      |  6 +++
 drivers/gpu/drm/i915/display/intel_psr.c     | 41 --------------------
 drivers/gpu/drm/i915/display/intel_psr.h     |  4 --
 drivers/gpu/drm/i915/i915_drv.h              |  1 -
 6 files changed, 6 insertions(+), 49 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_atomic.c b/drivers/gpu/drm/i915/display/intel_atomic.c
index 86be032bcf96..63d8d6840655 100644
--- a/drivers/gpu/drm/i915/display/intel_atomic.c
+++ b/drivers/gpu/drm/i915/display/intel_atomic.c
@@ -133,7 +133,6 @@ int intel_digital_connector_atomic_check(struct drm_connector *conn,
 	struct drm_crtc_state *crtc_state;
 
 	intel_hdcp_atomic_check(conn, old_state, new_state);
-	intel_psr_atomic_check(conn, old_state, new_state);
 
 	if (!new_state->crtc)
 		return 0;
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index cddbda5303ff..3c3adaee7b49 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -18373,8 +18373,6 @@ int intel_modeset_init(struct drm_i915_private *i915)
 
 	intel_init_ipc(i915);
 
-	intel_psr_set_force_mode_changed(i915->psr.dp);
-
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index cf09aca7607b..3b0dbda5919a 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -3778,6 +3778,12 @@ bool intel_dp_initial_fastset_check(struct intel_encoder *encoder,
 		return false;
 	}
 
+	if (CAN_PSR(i915) && intel_dp_is_edp(intel_dp)) {
+		drm_dbg_kms(&i915->drm, "Forcing full modeset to compute PSR state\n");
+		crtc_state->uapi.mode_changed = true;
+		return false;
+	}
+
 	return true;
 }
 
diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
index 1576c3722d0b..b3631b722de3 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -1024,8 +1024,6 @@ void intel_psr_enable(struct intel_dp *intel_dp,
 	if (!CAN_PSR(dev_priv) || dev_priv->psr.dp != intel_dp)
 		return;
 
-	dev_priv->psr.force_mode_changed = false;
-
 	if (!crtc_state->has_psr)
 		return;
 
@@ -1334,8 +1332,6 @@ void intel_psr_update(struct intel_dp *intel_dp,
 	if (!CAN_PSR(dev_priv) || READ_ONCE(psr->dp) != intel_dp)
 		return;
 
-	dev_priv->psr.force_mode_changed = false;
-
 	mutex_lock(&dev_priv->psr.lock);
 
 	enable = crtc_state->has_psr;
@@ -1869,40 +1865,3 @@ bool intel_psr_enabled(struct intel_dp *intel_dp)
 
 	return ret;
 }
-
-void intel_psr_atomic_check(struct drm_connector *connector,
-			    struct drm_connector_state *old_state,
-			    struct drm_connector_state *new_state)
-{
-	struct drm_i915_private *dev_priv = to_i915(connector->dev);
-	struct intel_connector *intel_connector;
-	struct intel_digital_port *dig_port;
-	struct drm_crtc_state *crtc_state;
-
-	if (!CAN_PSR(dev_priv) || !new_state->crtc ||
-	    !dev_priv->psr.force_mode_changed)
-		return;
-
-	intel_connector = to_intel_connector(connector);
-	dig_port = enc_to_dig_port(to_intel_encoder(new_state->best_encoder));
-	if (dev_priv->psr.dp != &dig_port->dp)
-		return;
-
-	crtc_state = drm_atomic_get_new_crtc_state(new_state->state,
-						   new_state->crtc);
-	crtc_state->mode_changed = true;
-}
-
-void intel_psr_set_force_mode_changed(struct intel_dp *intel_dp)
-{
-	struct drm_i915_private *dev_priv;
-
-	if (!intel_dp)
-		return;
-
-	dev_priv = dp_to_i915(intel_dp);
-	if (!CAN_PSR(dev_priv) || intel_dp != dev_priv->psr.dp)
-		return;
-
-	dev_priv->psr.force_mode_changed = true;
-}
diff --git a/drivers/gpu/drm/i915/display/intel_psr.h b/drivers/gpu/drm/i915/display/intel_psr.h
index 3eca9dcec3c0..0a517978e8af 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.h
+++ b/drivers/gpu/drm/i915/display/intel_psr.h
@@ -43,10 +43,6 @@ void intel_psr_short_pulse(struct intel_dp *intel_dp);
 int intel_psr_wait_for_idle(const struct intel_crtc_state *new_crtc_state,
 			    u32 *out_value);
 bool intel_psr_enabled(struct intel_dp *intel_dp);
-void intel_psr_atomic_check(struct drm_connector *connector,
-			    struct drm_connector_state *old_state,
-			    struct drm_connector_state *new_state);
-void intel_psr_set_force_mode_changed(struct intel_dp *intel_dp);
 int intel_psr2_sel_fetch_update(struct intel_atomic_state *state,
 				struct intel_crtc *crtc);
 void intel_psr2_program_trans_man_trk_ctl(const struct intel_crtc_state *crtc_state);
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index bcd8650603d8..8e4a5468b1d0 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -508,7 +508,6 @@ struct i915_psr {
 	bool dc3co_enabled;
 	u32 dc3co_exit_delay;
 	struct delayed_work dc3co_work;
-	bool force_mode_changed;
 	struct drm_dp_vsc_sdp vsc;
 };
 
-- 
2.29.2