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Message-Id: <20250917-mtk-post-blend-color-pipeline-v2-3-ac4471b44758@collabora.com>
Date: Wed, 17 Sep 2025 20:43:12 -0400
From: Nícolas F. R. A. Prado <nfraprado@...labora.com>
To: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>,
David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
Chun-Kuang Hu <chunkuang.hu@...nel.org>,
Philipp Zabel <p.zabel@...gutronix.de>,
Matthias Brugger <matthias.bgg@...il.com>,
AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
Haneen Mohammed <hamohammed.sa@...il.com>,
Melissa Wen <melissa.srw@...il.com>
Cc: Alex Hung <alex.hung@....com>, wayland-devel@...ts.freedesktop.org,
harry.wentland@....com, leo.liu@....com, ville.syrjala@...ux.intel.com,
pekka.paalanen@...labora.com, contact@...rsion.fr, mwen@...lia.com,
jadahl@...hat.com, sebastian.wick@...hat.com, shashank.sharma@....com,
agoins@...dia.com, joshua@...ggi.es, mdaenzer@...hat.com, aleixpol@....org,
xaver.hugl@...il.com, victoria@...tem76.com, uma.shankar@...el.com,
quic_naseer@...cinc.com, quic_cbraga@...cinc.com, quic_abhinavk@...cinc.com,
marcan@...can.st, Liviu.Dudau@....com, sashamcintosh@...gle.com,
chaitanya.kumar.borah@...el.com, louis.chauvet@...tlin.com,
mcanal@...lia.com, kernel@...labora.com, daniels@...labora.com,
leandro.ribeiro@...labora.com, dri-devel@...ts.freedesktop.org,
linux-kernel@...r.kernel.org, linux-mediatek@...ts.infradead.org,
linux-arm-kernel@...ts.infradead.org,
Nícolas F. R. A. Prado <nfraprado@...labora.com>,
Simona Vetter <simona.vetter@...ll.ch>
Subject: [PATCH RFC v2 03/20] drm: Factor out common color_pipeline
property initialization code
In preparation for sharing the initialization code for the color
pipeline property between pre- and post-blend color pipelines, factor
out the common initialization to a separate function.
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@...labora.com>
---
drivers/gpu/drm/drm_crtc.c | 44 +++++++++++++++++++++++++++++++++++++
drivers/gpu/drm/drm_crtc_internal.h | 5 +++++
drivers/gpu/drm/drm_plane.c | 36 +++++-------------------------
3 files changed, 54 insertions(+), 31 deletions(-)
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 46655339003db2a1b43441434839e26f61d79b4e..94e60cffd29972aa979ac2f1932be7a6a97f3ada 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -959,3 +959,47 @@ bool drm_crtc_in_clone_mode(struct drm_crtc_state *crtc_state)
return hweight32(crtc_state->encoder_mask) > 1;
}
EXPORT_SYMBOL(drm_crtc_in_clone_mode);
+
+struct drm_property *
+drm_common_create_color_pipeline_property(struct drm_device *dev, struct drm_mode_object *obj,
+ const struct drm_prop_enum_list *pipelines,
+ int num_pipelines)
+{
+ struct drm_prop_enum_list *all_pipelines;
+ struct drm_property *prop;
+ int len = 0;
+ int i;
+
+ all_pipelines = kcalloc(num_pipelines + 1,
+ sizeof(*all_pipelines),
+ GFP_KERNEL);
+
+ if (!all_pipelines) {
+ drm_err(dev, "failed to allocate color pipeline\n");
+ return ERR_PTR(-ENOMEM);
+ }
+
+ /* Create default Bypass color pipeline */
+ all_pipelines[len].type = 0;
+ all_pipelines[len].name = "Bypass";
+ len++;
+
+ /* Add all other color pipelines */
+ for (i = 0; i < num_pipelines; i++, len++) {
+ all_pipelines[len].type = pipelines[i].type;
+ all_pipelines[len].name = pipelines[i].name;
+ }
+
+ prop = drm_property_create_enum(dev, DRM_MODE_PROP_ATOMIC,
+ "COLOR_PIPELINE",
+ all_pipelines, len);
+ if (IS_ERR(prop)) {
+ kfree(all_pipelines);
+ return prop;
+ }
+
+ drm_object_attach_property(obj, prop, 0);
+
+ kfree(all_pipelines);
+ return prop;
+}
diff --git a/drivers/gpu/drm/drm_crtc_internal.h b/drivers/gpu/drm/drm_crtc_internal.h
index c094092296448093c5cd192ecdc8ea9a50769c90..e3dbdcbfa385b940ec0b5476adde6146fe4afde1 100644
--- a/drivers/gpu/drm/drm_crtc_internal.h
+++ b/drivers/gpu/drm/drm_crtc_internal.h
@@ -35,6 +35,7 @@
#ifndef __DRM_CRTC_INTERNAL_H__
#define __DRM_CRTC_INTERNAL_H__
+#include <drm/drm_property.h>
#include <linux/err.h>
#include <linux/types.h>
@@ -79,6 +80,10 @@ int drm_crtc_check_viewport(const struct drm_crtc *crtc,
int drm_crtc_register_all(struct drm_device *dev);
void drm_crtc_unregister_all(struct drm_device *dev);
int drm_crtc_force_disable(struct drm_crtc *crtc);
+struct drm_property *
+drm_common_create_color_pipeline_property(struct drm_device *dev, struct drm_mode_object *obj,
+ const struct drm_prop_enum_list *pipelines,
+ int num_pipelines);
struct dma_fence *drm_crtc_create_fence(struct drm_crtc *crtc);
diff --git a/drivers/gpu/drm/drm_plane.c b/drivers/gpu/drm/drm_plane.c
index f6cfa8ac090c7bc49c7f276993bba7e9800da140..60dbfcab495600dd44c15260a1fa6135db59c6e2 100644
--- a/drivers/gpu/drm/drm_plane.c
+++ b/drivers/gpu/drm/drm_plane.c
@@ -1839,43 +1839,17 @@ int drm_plane_create_color_pipeline_property(struct drm_plane *plane,
const struct drm_prop_enum_list *pipelines,
int num_pipelines)
{
- struct drm_prop_enum_list *all_pipelines;
struct drm_property *prop;
- int len = 0;
- int i;
-
- all_pipelines = kcalloc(num_pipelines + 1,
- sizeof(*all_pipelines),
- GFP_KERNEL);
-
- if (!all_pipelines) {
- drm_err(plane->dev, "failed to allocate color pipeline\n");
- return -ENOMEM;
- }
- /* Create default Bypass color pipeline */
- all_pipelines[len].type = 0;
- all_pipelines[len].name = "Bypass";
- len++;
-
- /* Add all other color pipelines */
- for (i = 0; i < num_pipelines; i++, len++) {
- all_pipelines[len].type = pipelines[i].type;
- all_pipelines[len].name = pipelines[i].name;
- }
-
- prop = drm_property_create_enum(plane->dev, DRM_MODE_PROP_ATOMIC,
- "COLOR_PIPELINE",
- all_pipelines, len);
- if (IS_ERR(prop)) {
- kfree(all_pipelines);
+ prop = drm_common_create_color_pipeline_property(plane->dev,
+ &plane->base,
+ pipelines,
+ num_pipelines);
+ if (IS_ERR(prop))
return PTR_ERR(prop);
- }
- drm_object_attach_property(&plane->base, prop, 0);
plane->color_pipeline_property = prop;
- kfree(all_pipelines);
return 0;
}
EXPORT_SYMBOL(drm_plane_create_color_pipeline_property);
--
2.50.1
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