bool enabled;
};
-#define PRE_CHANGE 0
-#define POST_CHANGE 1
+enum ufs_notify_change_status {
+ PRE_CHANGE,
+ POST_CHANGE,
+};
struct ufs_pa_layer_attr {
u32 gear_rx;
* @name: variant name
* @init: called when the driver is initialized
* @exit: called to cleanup everything done in init
+ * @get_ufs_hci_version: called to get UFS HCI version
* @clk_scale_notify: notifies that clks are scaled up/down
* @setup_clocks: called before touching any of the controller registers
* @setup_regulators: called before accessing the host controller
* to be set.
* @suspend: called during host controller PM callback
* @resume: called during host controller PM callback
+ * @dbg_register_dump: used to dump controller debug information
*/
struct ufs_hba_variant_ops {
const char *name;
int (*init)(struct ufs_hba *);
void (*exit)(struct ufs_hba *);
- void (*clk_scale_notify)(struct ufs_hba *);
- int (*setup_clocks)(struct ufs_hba *, bool);
+ u32 (*get_ufs_hci_version)(struct ufs_hba *);
+ int (*clk_scale_notify)(struct ufs_hba *, bool,
+ enum ufs_notify_change_status);
+ 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);
+ int (*hce_enable_notify)(struct ufs_hba *,
+ enum ufs_notify_change_status);
+ int (*link_startup_notify)(struct ufs_hba *,
+ enum ufs_notify_change_status);
int (*pwr_change_notify)(struct ufs_hba *,
- bool, struct ufs_pa_layer_attr *,
+ enum ufs_notify_change_status status,
+ struct ufs_pa_layer_attr *,
struct ufs_pa_layer_attr *);
int (*suspend)(struct ufs_hba *, enum ufs_pm_op);
int (*resume)(struct ufs_hba *, enum ufs_pm_op);
+ void (*dbg_register_dump)(struct ufs_hba *hba);
};
/* clock gating state */
unsigned int irq;
bool is_irq_enabled;
+ /* Interrupt aggregation support is broken */
+ #define UFSHCD_QUIRK_BROKEN_INTR_AGGR UFS_BIT(0)
+
/*
* delay before each dme command is required as the unipro
* layer has shown instabilities
*/
- #define UFSHCD_QUIRK_DELAY_BEFORE_DME_CMDS UFS_BIT(0)
+ #define UFSHCD_QUIRK_DELAY_BEFORE_DME_CMDS UFS_BIT(1)
+
+ /*
+ * If UFS host controller is having issue in processing LCC (Line
+ * Control Command) coming from device then enable this quirk.
+ * When this quirk is enabled, host controller driver should disable
+ * the LCC transmission on UFS device (by clearing TX_LCC_ENABLE
+ * attribute of device to 0).
+ */
+ #define UFSHCD_QUIRK_BROKEN_LCC UFS_BIT(2)
+
+ /*
+ * The attribute PA_RXHSUNTERMCAP specifies whether or not the
+ * inbound Link supports unterminated line in HS mode. Setting this
+ * attribute to 1 fixes moving to HS gear.
+ */
+ #define UFSHCD_QUIRK_BROKEN_PA_RXHSUNTERMCAP UFS_BIT(3)
+
+ /*
+ * This quirk needs to be enabled if the host contoller only allows
+ * accessing the peer dme attributes in AUTO mode (FAST AUTO or
+ * SLOW AUTO).
+ */
+ #define UFSHCD_QUIRK_DME_PEER_ACCESS_AUTO_MODE UFS_BIT(4)
+
+ /*
+ * This quirk needs to be enabled if the host contoller doesn't
+ * advertise the correct version in UFS_VER register. If this quirk
+ * is enabled, standard UFS host driver will call the vendor specific
+ * ops (get_ufs_hci_version) to get the correct version.
+ */
+ #define UFSHCD_QUIRK_BROKEN_UFS_HCI_VERSION UFS_BIT(5)
unsigned int quirks; /* Deviations from standard UFSHCI spec. */
#define UFSHCD_CAP_CLK_SCALING (1 << 2)
/* Allow auto bkops to enabled during runtime suspend */
#define UFSHCD_CAP_AUTO_BKOPS_SUSPEND (1 << 3)
+ /*
+ * This capability allows host controller driver to use the UFS HCI's
+ * interrupt aggregation capability.
+ * CAUTION: Enabling this might reduce overall UFS throughput.
+ */
+#define UFSHCD_CAP_INTR_AGGR (1 << 4)
struct devfreq *devfreq;
struct ufs_clk_scaling clk_scaling;
return hba->caps & UFSHCD_CAP_AUTO_BKOPS_SUSPEND;
}
+static inline bool ufshcd_is_intr_aggr_allowed(struct ufs_hba *hba)
+{
+ if ((hba->caps & UFSHCD_CAP_INTR_AGGR) &&
+ !(hba->quirks & UFSHCD_QUIRK_BROKEN_INTR_AGGR))
+ return true;
+ else
+ return false;
+}
+
#define ufshcd_writel(hba, val, reg) \
writel((val), (hba)->mmio_base + (reg))
#define ufshcd_readl(hba, reg) \
}
int ufshcd_alloc_host(struct device *, struct ufs_hba **);
+void ufshcd_dealloc_host(struct ufs_hba *);
int ufshcd_init(struct ufs_hba * , void __iomem * , unsigned int);
void ufshcd_remove(struct ufs_hba *);
GENERAL_UPIU_REQUEST_SIZE + QUERY_DESC_MAX_SIZE);
}
+/**
+ * ufshcd_set_variant - set variant specific data to the hba
+ * @hba - per adapter instance
+ * @variant - pointer to variant specific data
+ */
+static inline void ufshcd_set_variant(struct ufs_hba *hba, void *variant)
+{
+ BUG_ON(!hba);
+ hba->priv = variant;
+}
+
+/**
+ * ufshcd_get_variant - get variant specific data from the hba
+ * @hba - per adapter instance
+ */
+static inline void *ufshcd_get_variant(struct ufs_hba *hba)
+{
+ BUG_ON(!hba);
+ return hba->priv;
+}
+
extern int ufshcd_runtime_suspend(struct ufs_hba *hba);
extern int ufshcd_runtime_resume(struct ufs_hba *hba);
extern int ufshcd_runtime_idle(struct ufs_hba *hba);
int ufshcd_hold(struct ufs_hba *hba, bool async);
void ufshcd_release(struct ufs_hba *hba);
+
+/* Wrapper functions for safely calling variant operations */
+static inline const char *ufshcd_get_var_name(struct ufs_hba *hba)
+{
+ if (hba->vops)
+ return hba->vops->name;
+ return "";
+}
+
+static inline int ufshcd_vops_init(struct ufs_hba *hba)
+{
+ if (hba->vops && hba->vops->init)
+ return hba->vops->init(hba);
+
+ return 0;
+}
+
+static inline void ufshcd_vops_exit(struct ufs_hba *hba)
+{
+ if (hba->vops && hba->vops->exit)
+ return hba->vops->exit(hba);
+}
+
+static inline u32 ufshcd_vops_get_ufs_hci_version(struct ufs_hba *hba)
+{
+ if (hba->vops && hba->vops->get_ufs_hci_version)
+ return hba->vops->get_ufs_hci_version(hba);
+
+ return ufshcd_readl(hba, REG_UFS_VERSION);
+}
+
+static inline int ufshcd_vops_clk_scale_notify(struct ufs_hba *hba,
+ bool up, enum ufs_notify_change_status status)
+{
+ if (hba->vops && hba->vops->clk_scale_notify)
+ return hba->vops->clk_scale_notify(hba, up, status);
+ return 0;
+}
+
+static inline int ufshcd_vops_setup_clocks(struct ufs_hba *hba, bool on)
+{
+ if (hba->vops && hba->vops->setup_clocks)
+ return hba->vops->setup_clocks(hba, on);
+ return 0;
+}
+
+static inline int ufshcd_vops_setup_regulators(struct ufs_hba *hba, bool status)
+{
+ if (hba->vops && hba->vops->setup_regulators)
+ return hba->vops->setup_regulators(hba, status);
+
+ return 0;
+}
+
+static inline int ufshcd_vops_hce_enable_notify(struct ufs_hba *hba,
+ bool status)
+{
+ if (hba->vops && hba->vops->hce_enable_notify)
+ return hba->vops->hce_enable_notify(hba, status);
+
+ return 0;
+}
+static inline int ufshcd_vops_link_startup_notify(struct ufs_hba *hba,
+ bool status)
+{
+ if (hba->vops && hba->vops->link_startup_notify)
+ return hba->vops->link_startup_notify(hba, status);
+
+ return 0;
+}
+
+static inline int ufshcd_vops_pwr_change_notify(struct ufs_hba *hba,
+ bool status,
+ struct ufs_pa_layer_attr *dev_max_params,
+ struct ufs_pa_layer_attr *dev_req_params)
+{
+ if (hba->vops && hba->vops->pwr_change_notify)
+ return hba->vops->pwr_change_notify(hba, status,
+ dev_max_params, dev_req_params);
+
+ return -ENOTSUPP;
+}
+
+static inline int ufshcd_vops_suspend(struct ufs_hba *hba, enum ufs_pm_op op)
+{
+ if (hba->vops && hba->vops->suspend)
+ return hba->vops->suspend(hba, op);
+
+ return 0;
+}
+
+static inline int ufshcd_vops_resume(struct ufs_hba *hba, enum ufs_pm_op op)
+{
+ if (hba->vops && hba->vops->resume)
+ return hba->vops->resume(hba, op);
+
+ return 0;
+}
+
+static inline void ufshcd_vops_dbg_register_dump(struct ufs_hba *hba)
+{
+ if (hba->vops && hba->vops->dbg_register_dump)
+ hba->vops->dbg_register_dump(hba);
+}
+
#endif /* End of Header */
Code Review / kvmfornfv.git / blobdiff