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| author | Chris Packham <judge.packham@gmail.com> | 2023-07-12 11:30:44 +1200 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2023-07-25 12:44:46 -0400 |
| commit | d6c0d7087f0d17d954a39e0f6af406cfb2d7d43a (patch) | |
| tree | 1ed9f92759fb4c8e6f8c8d13e3842d92952144cd | |
| parent | b1aade87ca1f5d3788bd6ef570b438c2dc7a9428 (diff) | |
| download | u-boot-d6c0d7087f0d17d954a39e0f6af406cfb2d7d43a.zip u-boot-d6c0d7087f0d17d954a39e0f6af406cfb2d7d43a.tar.gz u-boot-d6c0d7087f0d17d954a39e0f6af406cfb2d7d43a.tar.bz2 | |
drivers: rtc: max313xx: provide read8/write8
In some designs the MAX313xx RTC may need calibration to cope with
oscillator inaccuracies. Provide read8/write8 ops so that the registers
can be accessed. Because the driver covers a range of MAX313xx variants
no attempt is made to ensure the register is valid.
Signed-off-by: Chris Packham <judge.packham@gmail.com>
| -rw-r--r-- | drivers/rtc/max313xx.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/rtc/max313xx.c b/drivers/rtc/max313xx.c index 748f3c4..6040023 100644 --- a/drivers/rtc/max313xx.c +++ b/drivers/rtc/max313xx.c @@ -326,10 +326,22 @@ static int max313xx_reset(struct udevice *dev) return ret; } +static int max313xx_read8(struct udevice *dev, unsigned int reg) +{ + return dm_i2c_reg_read(dev, reg); +} + +static int max313xx_write8(struct udevice *dev, unsigned int reg, int val) +{ + return dm_i2c_reg_write(dev, reg, val); +} + static const struct rtc_ops max3133x_rtc_ops = { .get = max313xx_read_time, .set = max313xx_set_time, .reset = max313xx_reset, + .read8 = max313xx_read8, + .write8 = max313xx_write8, }; static int max313xx_init(struct udevice *dev) |