diff options
Diffstat (limited to 'drivers/rtc/rtc-ds1307.c')
| -rw-r--r-- | drivers/rtc/rtc-ds1307.c | 30 |
1 files changed, 22 insertions, 8 deletions
diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c index 5efbe69bf5ca..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, }; @@ -1813,10 +1829,8 @@ static int ds1307_probe(struct i2c_client *client) 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; |