drivers/gpu/drm/i915/display/intel_color_pipeline.c

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/i915/display/intel_color_pipeline.c

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/i915/display/intel_color_pipeline.c
Extension
.c
Size
4881 bytes
Lines
183
Domain
Driver Families
Bucket
drivers/gpu
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

if (IS_ERR(colorop[i])) {
			ret = PTR_ERR(colorop[i]);
			goto cleanup;
		}

		prev = colorop[i];
	}

	list->type = colorop[0]->base.base.id;
	list->name = kasprintf(GFP_KERNEL, "Color Pipeline %d", colorop[0]->base.base.id);

	return 0;

cleanup:
	while (--i >= 0)
		intel_colorop_destroy(&colorop[i]->base);
	return ret;
}

int intel_color_pipeline_plane_init(struct drm_plane *plane, enum pipe pipe)
{
	struct drm_device *dev = plane->dev;
	struct intel_display *display = to_intel_display(dev);
	struct drm_prop_enum_list pipelines[MAX_COLOR_PIPELINES] = {};
	int len = 0;
	int ret = 0;
	int i;

	/* Currently expose pipeline only for HDR planes */
	if (!icl_is_hdr_plane(display, to_intel_plane(plane)->id))
		return 0;

	/* Add pipeline consisting of transfer functions */
	ret = _intel_color_pipeline_plane_init(plane, &pipelines[len], pipe);
	if (ret)
		goto out;
	len++;

	ret = drm_plane_create_color_pipeline_property(plane, pipelines, len);

	for (i = 0; i < len; i++)
		kfree(pipelines[i].name);

out:
	return ret;
}

Annotation

Implementation Notes