[PATCH v2 5/7] drm/vc4: kms: Add functions to create the state objects

[Maxime Ripard <maxime@cerno.tech>]

We're going to add a new private state, so let's move the previous state
function creation to some functions to make further additions easier.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
---
 drivers/gpu/drm/vc4/vc4_kms.c | 70 +++++++++++++++++++++++++-----------
 1 file changed, 49 insertions(+), 21 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_kms.c b/drivers/gpu/drm/vc4/vc4_kms.c
index b0043abec16d..2cac556f7799 100644
--- a/drivers/gpu/drm/vc4/vc4_kms.c
+++ b/drivers/gpu/drm/vc4/vc4_kms.c
@@ -95,6 +95,27 @@ static const struct drm_private_state_funcs vc4_ctm_state_funcs = {
 	.atomic_destroy_state = vc4_ctm_destroy_state,
 };
 
+static int vc4_ctm_obj_init(struct vc4_dev *vc4)
+{
+	struct vc4_ctm_state *ctm_state;
+
+	drm_modeset_lock_init(&vc4->ctm_state_lock);
+
+	ctm_state = kzalloc(sizeof(*ctm_state), GFP_KERNEL);
+	if (!ctm_state)
+		return -ENOMEM;
+
+	drm_atomic_private_obj_init(vc4->dev, &vc4->ctm_manager, &ctm_state->base,
+				    &vc4_ctm_state_funcs);
+
+	return 0;
+}
+
+static void vc4_ctm_obj_fini(struct vc4_dev *vc4)
+{
+	drm_atomic_private_obj_fini(&vc4->ctm_manager);
+}
+
 /* Converts a DRM S31.32 value to the HW S0.9 format. */
 static u16 vc4_ctm_s31_32_to_s0_9(u64 in)
 {
@@ -611,6 +632,23 @@ static const struct drm_private_state_funcs vc4_load_tracker_state_funcs = {
 	.atomic_destroy_state = vc4_load_tracker_destroy_state,
 };
 
+static int vc4_load_tracker_obj_init(struct vc4_dev *vc4)
+{
+	struct vc4_load_tracker_state *load_state;
+
+	if (!vc4->load_tracker_available)
+		return 0;
+
+	load_state = kzalloc(sizeof(*load_state), GFP_KERNEL);
+	if (!load_state)
+		return -ENOMEM;
+
+	drm_atomic_private_obj_init(vc4->dev, &vc4->load_tracker,
+				    &load_state->base,
+				    &vc4_load_tracker_state_funcs);
+
+	return 0;
+}
 
 /*
  * The BCM2711 HVS has up to 7 output connected to the pixelvalves and
@@ -745,8 +783,6 @@ static const struct drm_mode_config_funcs vc4_mode_funcs = {
 int vc4_kms_load(struct drm_device *dev)
 {
 	struct vc4_dev *vc4 = to_vc4_dev(dev);
-	struct vc4_ctm_state *ctm_state;
-	struct vc4_load_tracker_state *load_state;
 	bool is_vc5 = of_device_is_compatible(dev->dev->of_node,
 					      "brcm,bcm2711-vc5");
 	int ret;
@@ -785,30 +821,22 @@ int vc4_kms_load(struct drm_device *dev)
 	dev->mode_config.async_page_flip = true;
 	dev->mode_config.allow_fb_modifiers = true;
 
-	drm_modeset_lock_init(&vc4->ctm_state_lock);
-
-	ctm_state = kzalloc(sizeof(*ctm_state), GFP_KERNEL);
-	if (!ctm_state)
-		return -ENOMEM;
-
-	drm_atomic_private_obj_init(dev, &vc4->ctm_manager, &ctm_state->base,
-				    &vc4_ctm_state_funcs);
-
-	if (vc4->load_tracker_available) {
-		load_state = kzalloc(sizeof(*load_state), GFP_KERNEL);
-		if (!load_state) {
-			drm_atomic_private_obj_fini(&vc4->ctm_manager);
-			return -ENOMEM;
-		}
+	ret = vc4_ctm_obj_init(vc4);
+	if (ret)
+		return ret;
 
-		drm_atomic_private_obj_init(dev, &vc4->load_tracker,
-					    &load_state->base,
-					    &vc4_load_tracker_state_funcs);
-	}
+	ret = vc4_load_tracker_obj_init(vc4);
+	if (ret)
+		goto ctm_fini;
 
 	drm_mode_config_reset(dev);
 
 	drm_kms_helper_poll_init(dev);
 
 	return 0;
+
+ctm_fini:
+	vc4_ctm_obj_fini(vc4);
+
+	return ret;
 }
-- 
git-series 0.9.1