diff options
Diffstat (limited to 'drivers/rtc/rtc-pcf8523.c')
| -rw-r--r-- | drivers/rtc/rtc-pcf8523.c | 53 |
1 files changed, 41 insertions, 12 deletions
diff --git a/drivers/rtc/rtc-pcf8523.c b/drivers/rtc/rtc-pcf8523.c index 92de99f11a7a..2c63c0ffd05a 100644 --- a/drivers/rtc/rtc-pcf8523.c +++ b/drivers/rtc/rtc-pcf8523.c @@ -21,7 +21,7 @@ #define PCF8523_CONTROL2_AF BIT(3) #define PCF8523_REG_CONTROL3 0x02 -#define PCF8523_CONTROL3_PM GENMASK(7,5) +#define PCF8523_CONTROL3_PM GENMASK(7, 5) #define PCF8523_PM_STANDBY 0x7 #define PCF8523_CONTROL3_BLF BIT(2) /* battery low bit, read-only */ #define PCF8523_CONTROL3_BSF BIT(3) @@ -65,7 +65,7 @@ static int pcf8523_load_capacitance(struct pcf8523 *pcf8523, struct device_node load); fallthrough; case 12500: - value |= PCF8523_CONTROL1_CAP_SEL; + value = PCF8523_CONTROL1_CAP_SEL; break; case 7000: break; @@ -234,8 +234,7 @@ static int pcf8523_param_get(struct device *dev, struct rtc_param *param) int ret; u32 value; - switch(param->param) { - + switch (param->param) { case RTC_PARAM_BACKUP_SWITCH_MODE: ret = regmap_read(pcf8523->regmap, PCF8523_REG_CONTROL3, &value); if (ret < 0) @@ -243,7 +242,7 @@ static int pcf8523_param_get(struct device *dev, struct rtc_param *param) value = FIELD_GET(PCF8523_CONTROL3_PM, value); - switch(value) { + switch (value) { case 0x0: case 0x4: param->uvalue = RTC_BSM_LEVEL; @@ -273,7 +272,7 @@ static int pcf8523_param_set(struct device *dev, struct rtc_param *param) struct pcf8523 *pcf8523 = dev_get_drvdata(dev); u8 mode; - switch(param->param) { + switch (param->param) { case RTC_PARAM_BACKUP_SWITCH_MODE: switch (param->uvalue) { case RTC_BSM_DISABLED: @@ -371,6 +370,30 @@ static int pcf8523_rtc_set_offset(struct device *dev, long offset) return regmap_write(pcf8523->regmap, PCF8523_REG_OFFSET, value); } +#ifdef CONFIG_PM_SLEEP +static int pcf8523_suspend(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + + if (client->irq > 0 && device_may_wakeup(dev)) + enable_irq_wake(client->irq); + + return 0; +} + +static int pcf8523_resume(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + + if (client->irq > 0 && device_may_wakeup(dev)) + disable_irq_wake(client->irq); + + return 0; +} +#endif + +static SIMPLE_DEV_PM_OPS(pcf8523_pm, pcf8523_suspend, pcf8523_resume); + static const struct rtc_class_ops pcf8523_rtc_ops = { .read_time = pcf8523_rtc_read_time, .set_time = pcf8523_rtc_set_time, @@ -385,9 +408,9 @@ static const struct rtc_class_ops pcf8523_rtc_ops = { }; static const struct regmap_config regmap_config = { - .reg_bits = 8, - .val_bits = 8, - .max_register = 0x13, + .reg_bits = 8, + .val_bits = 8, + .max_register = 0x13, }; static int pcf8523_probe(struct i2c_client *client) @@ -445,13 +468,18 @@ static int pcf8523_probe(struct i2c_client *client) clear_bit(RTC_FEATURE_UPDATE_INTERRUPT, rtc->features); if (client->irq > 0) { + unsigned long irqflags = IRQF_TRIGGER_LOW; + + if (dev_fwnode(&client->dev)) + irqflags = 0; + err = regmap_write(pcf8523->regmap, PCF8523_TMR_CLKOUT_CTRL, 0x38); if (err < 0) return err; err = devm_request_threaded_irq(&client->dev, client->irq, NULL, pcf8523_irq, - IRQF_SHARED | IRQF_ONESHOT | IRQF_TRIGGER_LOW, + IRQF_SHARED | IRQF_ONESHOT | irqflags, dev_name(&rtc->dev), pcf8523); if (err) return err; @@ -467,7 +495,7 @@ static int pcf8523_probe(struct i2c_client *client) } static const struct i2c_device_id pcf8523_id[] = { - { "pcf8523", 0 }, + { "pcf8523" }, { } }; MODULE_DEVICE_TABLE(i2c, pcf8523_id); @@ -483,8 +511,9 @@ static struct i2c_driver pcf8523_driver = { .driver = { .name = "rtc-pcf8523", .of_match_table = pcf8523_of_match, + .pm = &pcf8523_pm, }, - .probe_new = pcf8523_probe, + .probe = pcf8523_probe, .id_table = pcf8523_id, }; module_i2c_driver(pcf8523_driver); |