diff options
| -rw-r--r-- | drivers/rtc/rtc-uclass.c | 25 |
1 files changed, 19 insertions, 6 deletions
diff --git a/drivers/rtc/rtc-uclass.c b/drivers/rtc/rtc-uclass.c index 44da500c03..8035f7fe9c 100644 --- a/drivers/rtc/rtc-uclass.c +++ b/drivers/rtc/rtc-uclass.c @@ -83,9 +83,17 @@ int rtc_read8(struct udevice *dev, unsigned int reg) struct rtc_ops *ops = rtc_get_ops(dev); assert(ops); - if (!ops->read8) - return -ENOSYS; - return ops->read8(dev, reg); + if (ops->read8) + return ops->read8(dev, reg); + if (ops->read) { + u8 buf[1]; + int ret = ops->read(dev, reg, buf, 1); + + if (ret < 0) + return ret; + return buf[0]; + } + return -ENOSYS; } int rtc_write8(struct udevice *dev, unsigned int reg, int val) @@ -93,9 +101,14 @@ int rtc_write8(struct udevice *dev, unsigned int reg, int val) struct rtc_ops *ops = rtc_get_ops(dev); assert(ops); - if (!ops->write8) - return -ENOSYS; - return ops->write8(dev, reg, val); + if (ops->write8) + return ops->write8(dev, reg, val); + if (ops->write) { + u8 buf[1] = { val }; + + return ops->write(dev, reg, buf, 1); + } + return -ENOSYS; } int rtc_read16(struct udevice *dev, unsigned int reg, u16 *valuep) |