From d24c7fbcc5e530bb5a2b5326869aaa2d7a61d607 Mon Sep 17 00:00:00 2001 From: Bin Meng Date: Thu, 16 Mar 2017 07:26:27 -0700 Subject: dm: rtc: Add 16-bit read/write support At present there are only 8-bit and 32-bit read/write routines in the rtc uclass driver. This adds the 16-bit support. Signed-off-by: Bin Meng Reviewed-by: Simon Glass --- include/rtc.h | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'include/rtc.h') diff --git a/include/rtc.h b/include/rtc.h index 69fe8d4..49142b6 100644 --- a/include/rtc.h +++ b/include/rtc.h @@ -128,6 +128,26 @@ int rtc_read8(struct udevice *dev, unsigned int reg); int rtc_write8(struct udevice *dev, unsigned int reg, int val); /** + * rtc_read16() - Read a 16-bit value from the RTC + * + * @dev: Device to read from + * @reg: Offset to start reading from + * @valuep: Place to put the value that is read + * @return 0 if OK, -ve on error + */ +int rtc_read16(struct udevice *dev, unsigned int reg, u16 *valuep); + +/** + * rtc_write16() - Write a 16-bit value to the RTC + * + * @dev: Device to write to + * @reg: Register to start writing to + * @value: Value to write + * @return 0 if OK, -ve on error + */ +int rtc_write16(struct udevice *dev, unsigned int reg, u16 value); + +/** * rtc_read32() - Read a 32-bit value from the RTC * * @dev: Device to read from -- cgit v1.1