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| author | Russell King <rmk+kernel@armlinux.org.uk> | 2017-09-23 10:31:33 +0100 |
|---|---|---|
| committer | Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2022-05-23 16:41:09 +0100 |
| commit | bc24295f9a91e7b67b3f088e471acc9629143fec (patch) | |
| tree | 7ec5f4d77652c4d89a0e8855a70195c56a177d6c | |
| parent | 13eda90f1d106a82541c38ea3e0c2a1224f3491e (diff) | |
rtc: pre-register hook
Add a pre-register hook to allow RTC drivers to adjust the default
set_offset_nsec value.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
| -rw-r--r-- | drivers/rtc/class.c | 3 | ||||
| -rw-r--r-- | include/linux/rtc.h | 3 |
2 files changed, 6 insertions, 0 deletions
diff --git a/drivers/rtc/class.c b/drivers/rtc/class.c index 3c8eec2218df..afb1f0e0e818 100644 --- a/drivers/rtc/class.c +++ b/drivers/rtc/class.c @@ -410,6 +410,9 @@ int __devm_rtc_register_device(struct module *owner, struct rtc_device *rtc) if (!err && !rtc_valid_tm(&alrm.time)) rtc_initialize_alarm(rtc, &alrm); + if (rtc->ops->pre_register) + rtc->ops->pre_register(rtc); + rtc_dev_prepare(rtc); err = cdev_device_add(&rtc->char_dev, &rtc->dev); diff --git a/include/linux/rtc.h b/include/linux/rtc.h index 1fd9c6a21ebe..14241f985ad0 100644 --- a/include/linux/rtc.h +++ b/include/linux/rtc.h @@ -44,6 +44,8 @@ static inline time64_t rtc_tm_sub(struct rtc_time *lhs, struct rtc_time *rhs) extern struct class *rtc_class; +struct rtc_device; + /* * For these RTC methods the device parameter is the physical device * on whatever bus holds the hardware (I2C, Platform, SPI, etc), which @@ -68,6 +70,7 @@ struct rtc_class_ops { int (*set_offset)(struct device *, long offset); int (*param_get)(struct device *, struct rtc_param *param); int (*param_set)(struct device *, struct rtc_param *param); + void (*pre_register)(struct rtc_device *); }; struct rtc_device; |