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rtc: m41t62: implements read8/write8 operations

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These operations are required by dm_rtc_read and
dm_bootcount_get helpers.

Signed-off-by: Thomas Perrot <thomas.perrot@bootlin.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Thomas Perrot
2023-03-17 15:22:41 +01:00
committed by Tom Rini
parent 39409fac2c
commit fdef6b982f
1 changed files with 12 additions and 0 deletions
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12
drivers/rtc/m41t62.c
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@@ -283,6 +283,16 @@ static int m41t62_rtc_reset(struct udevice *dev)
return m41t62_sqw_enable(dev, true);
}
static int m41t62_rtc_read8(struct udevice *dev, unsigned int reg)
{
return dm_i2c_reg_read(dev, reg);
}
static int m41t62_rtc_write8(struct udevice *dev, unsigned int reg, int val)
{
return dm_i2c_reg_write(dev, reg, val);
}
/*
* Make sure HT bit is cleared. This bit is set on entering battery backup
* mode, so do this before the first read access.
@@ -296,6 +306,8 @@ static const struct rtc_ops m41t62_rtc_ops = {
.get = m41t62_rtc_get,
.set = m41t62_rtc_set,
.reset = m41t62_rtc_reset,
.read8 = m41t62_rtc_read8,
.write8 = m41t62_rtc_write8,
};
static const struct udevice_id m41t62_rtc_ids[] = {