diff options
Diffstat (limited to 'include/linux/dpll.h')
| -rw-r--r-- | include/linux/dpll.h | 64 |
1 files changed, 60 insertions, 4 deletions
diff --git a/include/linux/dpll.h b/include/linux/dpll.h index 562f520b23c2..2ce295b46b8c 100644 --- a/include/linux/dpll.h +++ b/include/linux/dpll.h @@ -11,15 +11,23 @@ #include <linux/device.h> #include <linux/netlink.h> #include <linux/netdevice.h> +#include <linux/notifier.h> #include <linux/rtnetlink.h> struct dpll_device; struct dpll_pin; struct dpll_pin_esync; +struct fwnode_handle; +struct ref_tracker; struct dpll_device_ops { int (*mode_get)(const struct dpll_device *dpll, void *dpll_priv, enum dpll_mode *mode, struct netlink_ext_ack *extack); + int (*mode_set)(const struct dpll_device *dpll, void *dpll_priv, + enum dpll_mode mode, struct netlink_ext_ack *extack); + int (*supported_modes_get)(const struct dpll_device *dpll, + void *dpll_priv, unsigned long *modes, + struct netlink_ext_ack *extack); int (*lock_status_get)(const struct dpll_device *dpll, void *dpll_priv, enum dpll_lock_status *status, enum dpll_lock_status_error *status_error, @@ -166,6 +174,36 @@ struct dpll_pin_properties { u32 phase_gran; }; +#ifdef CONFIG_DPLL_REFCNT_TRACKER +typedef struct ref_tracker *dpll_tracker; +#else +typedef struct {} dpll_tracker; +#endif + +#define DPLL_DEVICE_CREATED 1 +#define DPLL_DEVICE_DELETED 2 +#define DPLL_DEVICE_CHANGED 3 +#define DPLL_PIN_CREATED 4 +#define DPLL_PIN_DELETED 5 +#define DPLL_PIN_CHANGED 6 + +struct dpll_device_notifier_info { + struct dpll_device *dpll; + u32 id; + u32 idx; + u64 clock_id; + enum dpll_type type; +}; + +struct dpll_pin_notifier_info { + struct dpll_pin *pin; + u32 id; + u32 idx; + u64 clock_id; + const struct fwnode_handle *fwnode; + const struct dpll_pin_properties *prop; +}; + #if IS_ENABLED(CONFIG_DPLL) void dpll_netdev_pin_set(struct net_device *dev, struct dpll_pin *dpll_pin); void dpll_netdev_pin_clear(struct net_device *dev); @@ -173,6 +211,9 @@ void dpll_netdev_pin_clear(struct net_device *dev); size_t dpll_netdev_pin_handle_size(const struct net_device *dev); int dpll_netdev_add_pin_handle(struct sk_buff *msg, const struct net_device *dev); + +struct dpll_pin *fwnode_dpll_pin_find(struct fwnode_handle *fwnode, + dpll_tracker *tracker); #else static inline void dpll_netdev_pin_set(struct net_device *dev, struct dpll_pin *dpll_pin) { } @@ -188,12 +229,19 @@ dpll_netdev_add_pin_handle(struct sk_buff *msg, const struct net_device *dev) { return 0; } + +static inline struct dpll_pin * +fwnode_dpll_pin_find(struct fwnode_handle *fwnode, dpll_tracker *tracker) +{ + return NULL; +} #endif struct dpll_device * -dpll_device_get(u64 clock_id, u32 dev_driver_id, struct module *module); +dpll_device_get(u64 clock_id, u32 dev_driver_id, struct module *module, + dpll_tracker *tracker); -void dpll_device_put(struct dpll_device *dpll); +void dpll_device_put(struct dpll_device *dpll, dpll_tracker *tracker); int dpll_device_register(struct dpll_device *dpll, enum dpll_type type, const struct dpll_device_ops *ops, void *priv); @@ -201,9 +249,11 @@ int dpll_device_register(struct dpll_device *dpll, enum dpll_type type, void dpll_device_unregister(struct dpll_device *dpll, const struct dpll_device_ops *ops, void *priv); +#define DPLL_PIN_IDX_UNSPEC U32_MAX + struct dpll_pin * dpll_pin_get(u64 clock_id, u32 dev_driver_id, struct module *module, - const struct dpll_pin_properties *prop); + const struct dpll_pin_properties *prop, dpll_tracker *tracker); int dpll_pin_register(struct dpll_device *dpll, struct dpll_pin *pin, const struct dpll_pin_ops *ops, void *priv); @@ -211,7 +261,9 @@ int dpll_pin_register(struct dpll_device *dpll, struct dpll_pin *pin, void dpll_pin_unregister(struct dpll_device *dpll, struct dpll_pin *pin, const struct dpll_pin_ops *ops, void *priv); -void dpll_pin_put(struct dpll_pin *pin); +void dpll_pin_put(struct dpll_pin *pin, dpll_tracker *tracker); + +void dpll_pin_fwnode_set(struct dpll_pin *pin, struct fwnode_handle *fwnode); int dpll_pin_on_pin_register(struct dpll_pin *parent, struct dpll_pin *pin, const struct dpll_pin_ops *ops, void *priv); @@ -226,4 +278,8 @@ int dpll_device_change_ntf(struct dpll_device *dpll); int dpll_pin_change_ntf(struct dpll_pin *pin); +int register_dpll_notifier(struct notifier_block *nb); + +int unregister_dpll_notifier(struct notifier_block *nb); + #endif |