drivers/gpu/drm/bridge/cadence/cdns-dsi-core.h

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/bridge/cadence/cdns-dsi-core.h

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/bridge/cadence/cdns-dsi-core.h
Extension
.h
Size
1800 bytes
Lines
83
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 cdns_dsi_output {
	struct mipi_dsi_device *dev;
	struct drm_bridge *bridge;
	union phy_configure_opts phy_opts;
};

enum cdns_dsi_input_id {
	CDNS_SDI_INPUT,
	CDNS_DPI_INPUT,
	CDNS_DSC_INPUT,
};

struct cdns_dsi_cfg {
	unsigned int hfp;
	unsigned int hsa;
	unsigned int hbp;
	unsigned int hact;
	unsigned int htotal;
};

struct cdns_dsi_input {
	enum cdns_dsi_input_id id;
	struct drm_bridge bridge;
};

struct cdns_dsi;

/**
 * struct cdns_dsi_platform_ops - CDNS DSI Platform operations
 * @init: Called in the CDNS DSI probe
 * @deinit: Called in the CDNS DSI remove
 * @enable: Called at the beginning of CDNS DSI bridge enable
 * @disable: Called at the end of CDNS DSI bridge disable
 */
struct cdns_dsi_platform_ops {
	int (*init)(struct cdns_dsi *dsi);
	void (*deinit)(struct cdns_dsi *dsi);
	void (*enable)(struct cdns_dsi *dsi);
	void (*disable)(struct cdns_dsi *dsi);
};

struct cdns_dsi {
	struct mipi_dsi_host base;
	void __iomem *regs;
#ifdef CONFIG_DRM_CDNS_DSI_J721E
	void __iomem *j721e_regs;
#endif
	const struct cdns_dsi_platform_ops *platform_ops;
	struct cdns_dsi_input input;
	struct cdns_dsi_output output;
	unsigned int direct_cmd_fifo_depth;
	unsigned int rx_fifo_depth;
	struct completion direct_cmd_comp;
	struct clk *dsi_p_clk;
	struct reset_control *dsi_p_rst;
	struct clk *dsi_sys_clk;
	bool link_initialized;
	bool phy_initialized;
	struct phy *dphy;
};

#endif /* !__CDNS_DSI_H__ */

Annotation

Implementation Notes