drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_kms.c
Source file repositories/reference/linux-study-clean/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_kms.c
File Facts
- System
- Linux kernel
- Corpus path
drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_kms.c- Extension
.c- Size
- 1234 bytes
- Lines
- 54
- 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.
- 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.
- Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
drm/drm_atomic_helper.hdrm/drm_gem_framebuffer_helper.hdrm/drm_probe_helper.hfsl_dcu_drm_crtc.hfsl_dcu_drm_drv.h
Detected Declarations
function fsl_dcu_drm_modeset_init
Annotated Snippet
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright 2015 Freescale Semiconductor, Inc.
*
* Freescale DCU drm device driver
*/
#include <drm/drm_atomic_helper.h>
#include <drm/drm_gem_framebuffer_helper.h>
#include <drm/drm_probe_helper.h>
#include "fsl_dcu_drm_crtc.h"
#include "fsl_dcu_drm_drv.h"
static const struct drm_mode_config_funcs fsl_dcu_drm_mode_config_funcs = {
.atomic_check = drm_atomic_helper_check,
.atomic_commit = drm_atomic_helper_commit,
.fb_create = drm_gem_fb_create,
};
int fsl_dcu_drm_modeset_init(struct fsl_dcu_drm_device *fsl_dev)
{
int ret;
drm_mode_config_init(fsl_dev->drm);
fsl_dev->drm->mode_config.min_width = 0;
fsl_dev->drm->mode_config.min_height = 0;
fsl_dev->drm->mode_config.max_width = 2031;
fsl_dev->drm->mode_config.max_height = 2047;
fsl_dev->drm->mode_config.funcs = &fsl_dcu_drm_mode_config_funcs;
ret = fsl_dcu_drm_crtc_create(fsl_dev);
if (ret)
goto err;
ret = fsl_dcu_drm_encoder_create(fsl_dev, &fsl_dev->crtc);
if (ret)
goto err;
ret = fsl_dcu_create_outputs(fsl_dev);
if (ret)
goto err;
drm_mode_config_reset(fsl_dev->drm);
drm_kms_helper_poll_init(fsl_dev->drm);
return 0;
err:
drm_mode_config_cleanup(fsl_dev->drm);
return ret;
}
Annotation
- Immediate include surface: `drm/drm_atomic_helper.h`, `drm/drm_gem_framebuffer_helper.h`, `drm/drm_probe_helper.h`, `fsl_dcu_drm_crtc.h`, `fsl_dcu_drm_drv.h`.
- Detected declarations: `function fsl_dcu_drm_modeset_init`.
- Atlas domain: Driver Families / drivers/gpu.
- Implementation status: source implementation candidate.
- Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.