From 28094eac9bbd2653151a5659d15677136906c427 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala@linux.intel.com>
Date: Wed, 9 Jun 2021 11:56:28 +0300
Subject: drm/i915: Clean up intel_get_load_detect_pipe() a bit
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Git-commit: e969c2da0e5b40d15b45ba7fdb819d36a699cd05
Patch-mainline: v5.15-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225

Sort out the mess with the local variables in
intel_get_load_detect_pipe(). Get rid of all aliasing pointers
and use standard naming/types.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210609085632.22026-3-ville.syrjala@linux.intel.com
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
 drivers/gpu/drm/i915/display/intel_display.c | 41 +++++++++-----------
 1 file changed, 19 insertions(+), 22 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 362de534cf53..6d4f0c5c9ae5 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -6487,13 +6487,11 @@ int intel_get_load_detect_pipe(struct drm_connector *connector,
 			       struct intel_load_detect_pipe *old,
 			       struct drm_modeset_acquire_ctx *ctx)
 {
-	struct intel_crtc *intel_crtc;
-	struct intel_encoder *intel_encoder =
+	struct intel_encoder *encoder =
 		intel_attached_encoder(to_intel_connector(connector));
-	struct drm_crtc *possible_crtc;
-	struct drm_encoder *encoder = &intel_encoder->base;
-	struct drm_crtc *crtc = NULL;
-	struct drm_device *dev = encoder->dev;
+	struct intel_crtc *possible_crtc;
+	struct intel_crtc *crtc = NULL;
+	struct drm_device *dev = encoder->base.dev;
 	struct drm_i915_private *dev_priv = to_i915(dev);
 	struct drm_mode_config *config = &dev->mode_config;
 	struct drm_atomic_state *state = NULL, *restore_state = NULL;
@@ -6503,7 +6501,7 @@ int intel_get_load_detect_pipe(struct drm_connector *connector,
 
 	drm_dbg_kms(&dev_priv->drm, "[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
 		    connector->base.id, connector->name,
-		    encoder->base.id, encoder->name);
+		    encoder->base.base.id, encoder->base.name);
 
 	old->restore_state = NULL;
 
@@ -6521,9 +6519,9 @@ int intel_get_load_detect_pipe(struct drm_connector *connector,
 
 	/* See if we already have a CRTC for this connector */
 	if (connector->state->crtc) {
-		crtc = connector->state->crtc;
+		crtc = to_intel_crtc(connector->state->crtc);
 
-		ret = drm_modeset_lock(&crtc->mutex, ctx);
+		ret = drm_modeset_lock(&crtc->base.mutex, ctx);
 		if (ret)
 			goto fail;
 
@@ -6532,16 +6530,17 @@ int intel_get_load_detect_pipe(struct drm_connector *connector,
 	}
 
 	/* Find an unused one (if possible) */
-	for_each_crtc(dev, possible_crtc) {
-		if (!(encoder->possible_crtcs & drm_crtc_mask(possible_crtc)))
+	for_each_intel_crtc(dev, possible_crtc) {
+		if (!(encoder->base.possible_crtcs &
+		      drm_crtc_mask(&possible_crtc->base)))
 			continue;
 
-		ret = drm_modeset_lock(&possible_crtc->mutex, ctx);
+		ret = drm_modeset_lock(&possible_crtc->base.mutex, ctx);
 		if (ret)
 			goto fail;
 
-		if (possible_crtc->state->enable) {
-			drm_modeset_unlock(&possible_crtc->mutex);
+		if (possible_crtc->base.state->enable) {
+			drm_modeset_unlock(&possible_crtc->base.mutex);
 			continue;
 		}
 
@@ -6560,8 +6559,6 @@ int intel_get_load_detect_pipe(struct drm_connector *connector,
 	}
 
 found:
-	intel_crtc = to_intel_crtc(crtc);
-
 	state = drm_atomic_state_alloc(dev);
 	restore_state = drm_atomic_state_alloc(dev);
 	if (!state || !restore_state) {
@@ -6578,11 +6575,11 @@ int intel_get_load_detect_pipe(struct drm_connector *connector,
 		goto fail;
 	}
 
-	ret = drm_atomic_set_crtc_for_connector(connector_state, crtc);
+	ret = drm_atomic_set_crtc_for_connector(connector_state, &crtc->base);
 	if (ret)
 		goto fail;
 
-	crtc_state = intel_atomic_get_crtc_state(state, intel_crtc);
+	crtc_state = intel_atomic_get_crtc_state(state, crtc);
 	if (IS_ERR(crtc_state)) {
 		ret = PTR_ERR(crtc_state);
 		goto fail;
@@ -6595,15 +6592,15 @@ int intel_get_load_detect_pipe(struct drm_connector *connector,
 	if (ret)
 		goto fail;
 
-	ret = intel_modeset_disable_planes(state, crtc);
+	ret = intel_modeset_disable_planes(state, &crtc->base);
 	if (ret)
 		goto fail;
 
 	ret = PTR_ERR_OR_ZERO(drm_atomic_get_connector_state(restore_state, connector));
 	if (!ret)
-		ret = PTR_ERR_OR_ZERO(drm_atomic_get_crtc_state(restore_state, crtc));
+		ret = PTR_ERR_OR_ZERO(drm_atomic_get_crtc_state(restore_state, &crtc->base));
 	if (!ret)
-		ret = drm_atomic_add_affected_planes(restore_state, crtc);
+		ret = drm_atomic_add_affected_planes(restore_state, &crtc->base);
 	if (ret) {
 		drm_dbg_kms(&dev_priv->drm,
 			    "Failed to create a copy of old state to restore: %i\n",
@@ -6622,7 +6619,7 @@ int intel_get_load_detect_pipe(struct drm_connector *connector,
 	drm_atomic_state_put(state);
 
 	/* let the connector get through one full cycle before testing */
-	intel_wait_for_vblank(dev_priv, intel_crtc->pipe);
+	intel_wait_for_vblank(dev_priv, crtc->pipe);
 	return true;
 
 fail:
-- 
2.38.1