drivers/gpu/drm/mxsfb/mxsfb_drv.h

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/mxsfb/mxsfb_drv.h

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/mxsfb/mxsfb_drv.h
Extension
.h
Size
1324 bytes
Lines
64
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 mxsfb_devdata {
	unsigned int	transfer_count;
	unsigned int	cur_buf;
	unsigned int	next_buf;
	unsigned int	hs_wdth_mask;
	unsigned int	hs_wdth_shift;
	bool		has_overlay;
	bool		has_ctrl2;
	bool		has_crc32;
};

struct mxsfb_drm_private {
	const struct mxsfb_devdata	*devdata;

	void __iomem			*base;	/* registers */
	struct clk			*clk;
	struct clk			*clk_axi;
	struct clk			*clk_disp_axi;

	unsigned int			irq;

	struct drm_device		*drm;
	struct {
		struct drm_plane	primary;
		struct drm_plane	overlay;
	} planes;
	struct drm_crtc			crtc;
	struct drm_encoder		encoder;
	struct drm_connector		*connector;
	struct drm_bridge		*bridge;

	bool				crc_active;
};

static inline struct mxsfb_drm_private *
to_mxsfb_drm_private(struct drm_device *drm)
{
	return drm->dev_private;
}

void mxsfb_enable_axi_clk(struct mxsfb_drm_private *mxsfb);
void mxsfb_disable_axi_clk(struct mxsfb_drm_private *mxsfb);

int mxsfb_kms_init(struct mxsfb_drm_private *mxsfb);

#endif /* __MXSFB_DRV_H__ */

Annotation

Implementation Notes