diff options
Diffstat (limited to 'drivers/scsi/ufs/ufshcd.h')
| -rw-r--r-- | drivers/scsi/ufs/ufshcd.h | 34 |
1 files changed, 32 insertions, 2 deletions
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h index acf318e338ed..8c6bec05283e 100644 --- a/drivers/scsi/ufs/ufshcd.h +++ b/drivers/scsi/ufs/ufshcd.h @@ -68,6 +68,8 @@ #define UFSHCD "ufshcd" #define UFSHCD_DRIVER_VERSION "0.2" +struct ufs_hba; + enum dev_cmd_type { DEV_CMD_TYPE_NOP = 0x0, DEV_CMD_TYPE_QUERY = 0x1, @@ -152,6 +154,30 @@ struct ufs_dev_cmd { struct ufs_query query; }; +#define PRE_CHANGE 0 +#define POST_CHANGE 1 +/** + * struct ufs_hba_variant_ops - variant specific callbacks + * @name: variant name + * @init: called when the driver is initialized + * @exit: called to cleanup everything done in init + * @setup_clocks: called before touching any of the controller registers + * @setup_regulators: called before accessing the host controller + * @hce_enable_notify: called before and after HCE enable bit is set to allow + * variant specific Uni-Pro initialization. + * @link_startup_notify: called before and after Link startup is carried out + * to allow variant specific Uni-Pro initialization. + */ +struct ufs_hba_variant_ops { + const char *name; + int (*init)(struct ufs_hba *); + void (*exit)(struct ufs_hba *); + int (*setup_clocks)(struct ufs_hba *, bool); + int (*setup_regulators)(struct ufs_hba *, bool); + int (*hce_enable_notify)(struct ufs_hba *, bool); + int (*link_startup_notify)(struct ufs_hba *, bool); +}; + /** * struct ufs_hba - per adapter private structure * @mmio_base: UFSHCI base register address @@ -171,6 +197,8 @@ struct ufs_dev_cmd { * @nutrs: Transfer Request Queue depth supported by controller * @nutmrs: Task Management Queue depth supported by controller * @ufs_version: UFS Version to which controller complies + * @vops: pointer to variant specific operations + * @priv: pointer to variant specific private data * @irq: Irq number of the controller * @active_uic_cmd: handle of active UIC command * @uic_cmd_mutex: mutex for uic command @@ -218,6 +246,8 @@ struct ufs_hba { int nutrs; int nutmrs; u32 ufs_version; + struct ufs_hba_variant_ops *vops; + void *priv; unsigned int irq; struct uic_command *active_uic_cmd; @@ -256,8 +286,8 @@ struct ufs_hba { #define ufshcd_readl(hba, reg) \ readl((hba)->mmio_base + (reg)) -int ufshcd_init(struct device *, struct ufs_hba ** , void __iomem * , - unsigned int); +int ufshcd_alloc_host(struct device *, struct ufs_hba **); +int ufshcd_init(struct ufs_hba * , void __iomem * , unsigned int); void ufshcd_remove(struct ufs_hba *); /** |