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path: root/drivers/rtc/rtc-ds1307.c
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Diffstat (limited to 'drivers/rtc/rtc-ds1307.c')
-rw-r--r--drivers/rtc/rtc-ds1307.c34
1 files changed, 23 insertions, 11 deletions
diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c
index 872e0b679be4..7205c59ff729 100644
--- a/drivers/rtc/rtc-ds1307.c
+++ b/drivers/rtc/rtc-ds1307.c
@@ -279,6 +279,13 @@ static int ds1307_get_time(struct device *dev, struct rtc_time *t)
if (tmp & DS1340_BIT_OSF)
return -EINVAL;
break;
+ case ds_1341:
+ ret = regmap_read(ds1307->regmap, DS1337_REG_STATUS, &tmp);
+ if (ret)
+ return ret;
+ if (tmp & DS1337_BIT_OSF)
+ return -EINVAL;
+ break;
case ds_1388:
ret = regmap_read(ds1307->regmap, DS1388_REG_FLAG, &tmp);
if (ret)
@@ -377,6 +384,10 @@ static int ds1307_set_time(struct device *dev, struct rtc_time *t)
regmap_update_bits(ds1307->regmap, DS1340_REG_FLAG,
DS1340_BIT_OSF, 0);
break;
+ case ds_1341:
+ regmap_update_bits(ds1307->regmap, DS1337_REG_STATUS,
+ DS1337_BIT_OSF, 0);
+ break;
case ds_1388:
regmap_update_bits(ds1307->regmap, DS1388_REG_FLAG,
DS1388_BIT_OSF, 0);
@@ -1456,16 +1467,21 @@ static unsigned long ds3231_clk_sqw_recalc_rate(struct clk_hw *hw,
return ds3231_clk_sqw_rates[rate_sel];
}
-static long ds3231_clk_sqw_round_rate(struct clk_hw *hw, unsigned long rate,
- unsigned long *prate)
+static int ds3231_clk_sqw_determine_rate(struct clk_hw *hw,
+ struct clk_rate_request *req)
{
int i;
for (i = ARRAY_SIZE(ds3231_clk_sqw_rates) - 1; i >= 0; i--) {
- if (ds3231_clk_sqw_rates[i] <= rate)
- return ds3231_clk_sqw_rates[i];
+ if (ds3231_clk_sqw_rates[i] <= req->rate) {
+ req->rate = ds3231_clk_sqw_rates[i];
+
+ return 0;
+ }
}
+ req->rate = ds3231_clk_sqw_rates[ARRAY_SIZE(ds3231_clk_sqw_rates) - 1];
+
return 0;
}
@@ -1525,7 +1541,7 @@ static const struct clk_ops ds3231_clk_sqw_ops = {
.unprepare = ds3231_clk_sqw_unprepare,
.is_prepared = ds3231_clk_sqw_is_prepared,
.recalc_rate = ds3231_clk_sqw_recalc_rate,
- .round_rate = ds3231_clk_sqw_round_rate,
+ .determine_rate = ds3231_clk_sqw_determine_rate,
.set_rate = ds3231_clk_sqw_set_rate,
};
@@ -1807,18 +1823,14 @@ static int ds1307_probe(struct i2c_client *client)
* For some variants, be sure alarms can trigger when we're
* running on Vbackup (BBSQI/BBSQW)
*/
- if (want_irq || ds1307_can_wakeup_device) {
+ if (want_irq || ds1307_can_wakeup_device)
regs[0] |= DS1337_BIT_INTCN | chip->bbsqi_bit;
- regs[0] &= ~(DS1337_BIT_A2IE | DS1337_BIT_A1IE);
- }
regmap_write(ds1307->regmap, DS1337_REG_CONTROL,
regs[0]);
- /* oscillator fault? clear flag, and warn */
+ /* oscillator fault? warn */
if (regs[1] & DS1337_BIT_OSF) {
- regmap_write(ds1307->regmap, DS1337_REG_STATUS,
- regs[1] & ~DS1337_BIT_OSF);
dev_warn(ds1307->dev, "SET TIME!\n");
}
break;