drivers/gpu/drm/sti/sti_compositor.h

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/sti/sti_compositor.h

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/sti/sti_compositor.h
Extension
.h
Size
2080 bytes
Lines
86
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

struct sti_compositor_subdev_descriptor {
	enum sti_compositor_subdev_type type;
	int id;
	unsigned int offset;
};

/**
 * STI Compositor data structure
 *
 * @nb_subdev: number of subdevices supported by the compositor
 * @subdev_desc: subdev list description
 */
#define MAX_SUBDEV 9
struct sti_compositor_data {
	unsigned int nb_subdev;
	struct sti_compositor_subdev_descriptor subdev_desc[MAX_SUBDEV];
};

/**
 * STI Compositor structure
 *
 * @dev: driver device
 * @regs: registers (main)
 * @data: device data
 * @clk_compo_main: clock for main compo
 * @clk_compo_aux: clock for aux compo
 * @clk_pix_main: pixel clock for main path
 * @clk_pix_aux: pixel clock for aux path
 * @rst_main: reset control of the main path
 * @rst_aux: reset control of the aux path
 * @mixer: array of mixers
 * @vid: array of vids
 * @vtg: array of vtgs
 * @vtg_vblank_nb: array of callbacks for VTG VSYNC notification
 */
struct sti_compositor {
	struct device *dev;
	void __iomem *regs;
	struct sti_compositor_data data;
	struct clk *clk_compo_main;
	struct clk *clk_compo_aux;
	struct clk *clk_pix_main;
	struct clk *clk_pix_aux;
	struct reset_control *rst_main;
	struct reset_control *rst_aux;
	struct sti_mixer *mixer[STI_MAX_MIXER];
	struct sti_vid *vid[STI_MAX_VID];
	struct sti_vtg *vtg[STI_MAX_MIXER];
	struct notifier_block vtg_vblank_nb[STI_MAX_MIXER];
};

void sti_compositor_debugfs_init(struct sti_compositor *compo,
				 struct drm_minor *minor);

#endif

Annotation

Implementation Notes