diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/ptp_clock_kernel.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/include/linux/ptp_clock_kernel.h b/include/linux/ptp_clock_kernel.h index 3d089bd4d5e9..7dd7951b23d5 100644 --- a/include/linux/ptp_clock_kernel.h +++ b/include/linux/ptp_clock_kernel.h @@ -361,6 +361,24 @@ extern void ptp_clock_event(struct ptp_clock *ptp, extern int ptp_clock_index(struct ptp_clock *ptp); /** + * ptp_clock_index_by_of_node() - obtain the device index of + * a PTP clock based on the PTP device of_node + * + * @np: The device of_node pointer of the PTP device. + * Return: The PHC index on success or -1 on failure. + */ +int ptp_clock_index_by_of_node(struct device_node *np); + +/** + * ptp_clock_index_by_dev() - obtain the device index of + * a PTP clock based on the PTP device. + * + * @parent: The parent device (PTP device) pointer of the PTP clock. + * Return: The PHC index on success or -1 on failure. + */ +int ptp_clock_index_by_dev(struct device *parent); + +/** * ptp_find_pin() - obtain the pin index of a given auxiliary function * * The caller must hold ptp_clock::pincfg_mux. Drivers do not have @@ -425,6 +443,10 @@ static inline void ptp_clock_event(struct ptp_clock *ptp, { } static inline int ptp_clock_index(struct ptp_clock *ptp) { return -1; } +static inline int ptp_clock_index_by_of_node(struct device_node *np) +{ return -1; } +static inline int ptp_clock_index_by_dev(struct device *parent) +{ return -1; } static inline int ptp_find_pin(struct ptp_clock *ptp, enum ptp_pin_function func, unsigned int chan) { return -1; } |