drivers/gpu/drm/mediatek/mtk_drm_drv.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/mediatek/mtk_drm_drv.h

Extension

.h

Size

2190 bytes

Lines

85

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

• linux/io.h
• mtk_ddp_comp.h

Detected Declarations

• struct device
• struct device_node
• struct drm_crtc
• struct drm_device
• struct drm_fb_helper
• struct drm_property
• struct regmap
• struct mtk_drm_route
• struct mtk_mmsys_driver_data
• struct mtk_drm_private
• enum mtk_crtc_path

Annotated Snippet

struct mtk_drm_route {
	const unsigned int crtc_id;
	const unsigned int route_ddp;
};

struct mtk_mmsys_driver_data {
	const unsigned int *main_path;
	unsigned int main_len;
	const unsigned int *ext_path;
	unsigned int ext_len;
	const unsigned int *third_path;
	unsigned int third_len;
	const struct mtk_drm_route *conn_routes;
	unsigned int num_conn_routes;

	bool shadow_register;
	unsigned int mmsys_id;
	unsigned int mmsys_dev_num;

	u16 max_width;
	u16 min_width;
	u16 min_height;
};

struct mtk_drm_private {
	struct drm_device *drm;
	bool mtk_drm_bound;
	bool drm_master;
	struct device *dev;
	struct device_node *mutex_node;
	struct device *mutex_dev;
	struct device *mmsys_dev;
	struct device_node *comp_node[DDP_COMPONENT_DRM_ID_MAX];
	struct mtk_ddp_comp ddp_comp[DDP_COMPONENT_DRM_ID_MAX];
	struct mtk_mmsys_driver_data *data;
	struct drm_atomic_commit *suspend_state;
	unsigned int mbox_index;
	struct mtk_drm_private **all_drm_private;
};

extern struct platform_driver mtk_disp_aal_driver;
extern struct platform_driver mtk_disp_ccorr_driver;
extern struct platform_driver mtk_disp_color_driver;
extern struct platform_driver mtk_disp_gamma_driver;
extern struct platform_driver mtk_disp_merge_driver;
extern struct platform_driver mtk_disp_ovl_adaptor_driver;
extern struct platform_driver mtk_disp_ovl_driver;
extern struct platform_driver mtk_disp_rdma_driver;
extern struct platform_driver mtk_dpi_driver;
extern struct platform_driver mtk_dsi_driver;
extern struct platform_driver mtk_ethdr_driver;
extern struct platform_driver mtk_mdp_rdma_driver;
extern struct platform_driver mtk_padding_driver;
#endif /* MTK_DRM_DRV_H */

Annotation

• Immediate include surface: `linux/io.h`, `mtk_ddp_comp.h`.
• Detected declarations: `struct device`, `struct device_node`, `struct drm_crtc`, `struct drm_device`, `struct drm_fb_helper`, `struct drm_property`, `struct regmap`, `struct mtk_drm_route`, `struct mtk_mmsys_driver_data`, `struct mtk_drm_private`.
• 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.