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Diffstat (limited to 'drivers/rtc')
-rw-r--r--drivers/rtc/rtc-armada38x.c22
-rw-r--r--drivers/rtc/rtc-max8997.c2
-rw-r--r--drivers/rtc/rtc-mt6397.c13
-rw-r--r--drivers/rtc/rtc-pcf8523.c60
-rw-r--r--drivers/rtc/rtc-pl030.c15
-rw-r--r--drivers/rtc/rtc-rv8803.c2
-rw-r--r--drivers/rtc/rtc-s35390a.c2
-rw-r--r--drivers/rtc/rtc-s3c.c6
-rw-r--r--drivers/rtc/rtc-snvs.c11
9 files changed, 82 insertions, 51 deletions
diff --git a/drivers/rtc/rtc-armada38x.c b/drivers/rtc/rtc-armada38x.c
index 21f355c37eab..10b5c8549039 100644
--- a/drivers/rtc/rtc-armada38x.c
+++ b/drivers/rtc/rtc-armada38x.c
@@ -390,7 +390,6 @@ MODULE_DEVICE_TABLE(of, armada38x_rtc_of_match_table);
static __init int armada38x_rtc_probe(struct platform_device *pdev)
{
- const struct rtc_class_ops *ops;
struct resource *res;
struct armada38x_rtc *rtc;
const struct of_device_id *match;
@@ -427,6 +426,11 @@ static __init int armada38x_rtc_probe(struct platform_device *pdev)
dev_err(&pdev->dev, "no irq\n");
return rtc->irq;
}
+
+ rtc->rtc_dev = devm_rtc_allocate_device(&pdev->dev);
+ if (IS_ERR(rtc->rtc_dev))
+ return PTR_ERR(rtc->rtc_dev);
+
if (devm_request_irq(&pdev->dev, rtc->irq, armada38x_rtc_alarm_irq,
0, pdev->name, rtc) < 0) {
dev_warn(&pdev->dev, "Interrupt not available.\n");
@@ -436,28 +440,24 @@ static __init int armada38x_rtc_probe(struct platform_device *pdev)
if (rtc->irq != -1) {
device_init_wakeup(&pdev->dev, 1);
- ops = &armada38x_rtc_ops;
+ rtc->rtc_dev->ops = &armada38x_rtc_ops;
} else {
/*
* If there is no interrupt available then we can't
* use the alarm
*/
- ops = &armada38x_rtc_ops_noirq;
+ rtc->rtc_dev->ops = &armada38x_rtc_ops_noirq;
}
rtc->data = (struct armada38x_rtc_data *)match->data;
-
/* Update RTC-MBUS bridge timing parameters */
rtc->data->update_mbus_timing(rtc);
- rtc->rtc_dev = devm_rtc_device_register(&pdev->dev, pdev->name,
- ops, THIS_MODULE);
- if (IS_ERR(rtc->rtc_dev)) {
- ret = PTR_ERR(rtc->rtc_dev);
+ ret = rtc_register_device(rtc->rtc_dev);
+ if (ret)
dev_err(&pdev->dev, "Failed to register RTC device: %d\n", ret);
- return ret;
- }
- return 0;
+
+ return ret;
}
#ifdef CONFIG_PM_SLEEP
diff --git a/drivers/rtc/rtc-max8997.c b/drivers/rtc/rtc-max8997.c
index db984d4bf952..4cce5bd448f6 100644
--- a/drivers/rtc/rtc-max8997.c
+++ b/drivers/rtc/rtc-max8997.c
@@ -221,7 +221,7 @@ static int max8997_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
out:
mutex_unlock(&info->lock);
- return 0;
+ return ret;
}
static int max8997_rtc_stop_alarm(struct max8997_rtc_info *info)
diff --git a/drivers/rtc/rtc-mt6397.c b/drivers/rtc/rtc-mt6397.c
index 1a61fa56f3ad..e82df43e5ca2 100644
--- a/drivers/rtc/rtc-mt6397.c
+++ b/drivers/rtc/rtc-mt6397.c
@@ -333,6 +333,10 @@ static int mtk_rtc_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, rtc);
+ rtc->rtc_dev = devm_rtc_allocate_device(rtc->dev);
+ if (IS_ERR(rtc->rtc_dev))
+ return PTR_ERR(rtc->rtc_dev);
+
ret = request_threaded_irq(rtc->irq, NULL,
mtk_rtc_irq_handler_thread,
IRQF_ONESHOT | IRQF_TRIGGER_HIGH,
@@ -345,11 +349,11 @@ static int mtk_rtc_probe(struct platform_device *pdev)
device_init_wakeup(&pdev->dev, 1);
- rtc->rtc_dev = rtc_device_register("mt6397-rtc", &pdev->dev,
- &mtk_rtc_ops, THIS_MODULE);
- if (IS_ERR(rtc->rtc_dev)) {
+ rtc->rtc_dev->ops = &mtk_rtc_ops;
+
+ ret = rtc_register_device(rtc->rtc_dev);
+ if (ret) {
dev_err(&pdev->dev, "register rtc device failed\n");
- ret = PTR_ERR(rtc->rtc_dev);
goto out_free_irq;
}
@@ -366,7 +370,6 @@ static int mtk_rtc_remove(struct platform_device *pdev)
{
struct mt6397_rtc *rtc = platform_get_drvdata(pdev);
- rtc_device_unregister(rtc->rtc_dev);
free_irq(rtc->irq, rtc->rtc_dev);
irq_dispose_mapping(rtc->irq);
diff --git a/drivers/rtc/rtc-pcf8523.c b/drivers/rtc/rtc-pcf8523.c
index 28c48b3c1946..a06792966ea9 100644
--- a/drivers/rtc/rtc-pcf8523.c
+++ b/drivers/rtc/rtc-pcf8523.c
@@ -82,23 +82,46 @@ static int pcf8523_write(struct i2c_client *client, u8 reg, u8 value)
return 0;
}
-static int pcf8523_select_capacitance(struct i2c_client *client, bool high)
+static int pcf8523_voltage_low(struct i2c_client *client)
{
u8 value;
int err;
+ err = pcf8523_read(client, REG_CONTROL3, &value);
+ if (err < 0)
+ return err;
+
+ return !!(value & REG_CONTROL3_BLF);
+}
+
+static int pcf8523_load_capacitance(struct i2c_client *client)
+{
+ u32 load;
+ u8 value;
+ int err;
+
err = pcf8523_read(client, REG_CONTROL1, &value);
if (err < 0)
return err;
- if (!high)
- value &= ~REG_CONTROL1_CAP_SEL;
- else
+ load = 12500;
+ of_property_read_u32(client->dev.of_node, "quartz-load-femtofarads",
+ &load);
+
+ switch (load) {
+ default:
+ dev_warn(&client->dev, "Unknown quartz-load-femtofarads value: %d. Assuming 12500",
+ load);
+ /* fall through */
+ case 12500:
value |= REG_CONTROL1_CAP_SEL;
+ break;
+ case 7000:
+ value &= ~REG_CONTROL1_CAP_SEL;
+ break;
+ }
err = pcf8523_write(client, REG_CONTROL1, value);
- if (err < 0)
- return err;
return err;
}
@@ -164,6 +187,14 @@ static int pcf8523_rtc_read_time(struct device *dev, struct rtc_time *tm)
struct i2c_msg msgs[2];
int err;
+ err = pcf8523_voltage_low(client);
+ if (err < 0) {
+ return err;
+ } else if (err > 0) {
+ dev_err(dev, "low voltage detected, time is unreliable\n");
+ return -EINVAL;
+ }
+
msgs[0].addr = client->addr;
msgs[0].flags = 0;
msgs[0].len = 1;
@@ -248,17 +279,13 @@ static int pcf8523_rtc_ioctl(struct device *dev, unsigned int cmd,
unsigned long arg)
{
struct i2c_client *client = to_i2c_client(dev);
- u8 value;
- int ret = 0, err;
+ int ret;
switch (cmd) {
case RTC_VL_READ:
- err = pcf8523_read(client, REG_CONTROL3, &value);
- if (err < 0)
- return err;
-
- if (value & REG_CONTROL3_BLF)
- ret = 1;
+ ret = pcf8523_voltage_low(client);
+ if (ret < 0)
+ return ret;
if (copy_to_user((void __user *)arg, &ret, sizeof(int)))
return -EFAULT;
@@ -291,9 +318,10 @@ static int pcf8523_probe(struct i2c_client *client,
if (!pcf)
return -ENOMEM;
- err = pcf8523_select_capacitance(client, true);
+ err = pcf8523_load_capacitance(client);
if (err < 0)
- return err;
+ dev_warn(&client->dev, "failed to set xtal load capacitance: %d",
+ err);
err = pcf8523_set_pm(client, 0);
if (err < 0)
diff --git a/drivers/rtc/rtc-pl030.c b/drivers/rtc/rtc-pl030.c
index f85a1a93e669..343bb6ed1783 100644
--- a/drivers/rtc/rtc-pl030.c
+++ b/drivers/rtc/rtc-pl030.c
@@ -112,6 +112,13 @@ static int pl030_probe(struct amba_device *dev, const struct amba_id *id)
goto err_rtc;
}
+ rtc->rtc = devm_rtc_allocate_device(&dev->dev);
+ if (IS_ERR(rtc->rtc)) {
+ ret = PTR_ERR(rtc->rtc);
+ goto err_rtc;
+ }
+
+ rtc->rtc->ops = &pl030_ops;
rtc->base = ioremap(dev->res.start, resource_size(&dev->res));
if (!rtc->base) {
ret = -ENOMEM;
@@ -128,12 +135,9 @@ static int pl030_probe(struct amba_device *dev, const struct amba_id *id)
if (ret)
goto err_irq;
- rtc->rtc = rtc_device_register("pl030", &dev->dev, &pl030_ops,
- THIS_MODULE);
- if (IS_ERR(rtc->rtc)) {
- ret = PTR_ERR(rtc->rtc);
+ ret = rtc_register_device(rtc->rtc);
+ if (ret)
goto err_reg;
- }
return 0;
@@ -154,7 +158,6 @@ static int pl030_remove(struct amba_device *dev)
writel(0, rtc->base + RTC_CR);
free_irq(dev->irq[0], rtc);
- rtc_device_unregister(rtc->rtc);
iounmap(rtc->base);
amba_release_regions(dev);
diff --git a/drivers/rtc/rtc-rv8803.c b/drivers/rtc/rtc-rv8803.c
index aae2576741a6..6e06fb3b0b92 100644
--- a/drivers/rtc/rtc-rv8803.c
+++ b/drivers/rtc/rtc-rv8803.c
@@ -622,7 +622,7 @@ MODULE_DEVICE_TABLE(i2c, rv8803_id);
static const struct of_device_id rv8803_of_match[] = {
{
.compatible = "microcrystal,rv8803",
- .data = (void *)rx_8900
+ .data = (void *)rv_8803
},
{
.compatible = "epson,rx8900",
diff --git a/drivers/rtc/rtc-s35390a.c b/drivers/rtc/rtc-s35390a.c
index 7067bca5c20d..6bfff0a6d655 100644
--- a/drivers/rtc/rtc-s35390a.c
+++ b/drivers/rtc/rtc-s35390a.c
@@ -108,7 +108,7 @@ static int s35390a_get_reg(struct s35390a *s35390a, int reg, char *buf, int len)
static int s35390a_init(struct s35390a *s35390a)
{
- char buf;
+ u8 buf;
int ret;
unsigned initcount = 0;
diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c
index a8992c227f61..4120a305954a 100644
--- a/drivers/rtc/rtc-s3c.c
+++ b/drivers/rtc/rtc-s3c.c
@@ -327,7 +327,6 @@ static int s3c_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm)
struct rtc_time *tm = &alrm->time;
unsigned int alrm_en;
int ret;
- int year = tm->tm_year - 100;
dev_dbg(dev, "s3c_rtc_setalarm: %d, %04d.%02d.%02d %02d:%02d:%02d\n",
alrm->enabled,
@@ -356,11 +355,6 @@ static int s3c_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm)
writeb(bin2bcd(tm->tm_hour), info->base + S3C2410_ALMHOUR);
}
- if (year < 100 && year >= 0) {
- alrm_en |= S3C2410_RTCALM_YEAREN;
- writeb(bin2bcd(year), info->base + S3C2410_ALMYEAR);
- }
-
if (tm->tm_mon < 12 && tm->tm_mon >= 0) {
alrm_en |= S3C2410_RTCALM_MONEN;
writeb(bin2bcd(tm->tm_mon + 1), info->base + S3C2410_ALMMON);
diff --git a/drivers/rtc/rtc-snvs.c b/drivers/rtc/rtc-snvs.c
index 6e45e049b8f7..58e2a7bde3a5 100644
--- a/drivers/rtc/rtc-snvs.c
+++ b/drivers/rtc/rtc-snvs.c
@@ -280,6 +280,10 @@ static int snvs_rtc_probe(struct platform_device *pdev)
if (!data)
return -ENOMEM;
+ data->rtc = devm_rtc_allocate_device(&pdev->dev);
+ if (IS_ERR(data->rtc))
+ return PTR_ERR(data->rtc);
+
data->regmap = syscon_regmap_lookup_by_phandle(pdev->dev.of_node, "regmap");
if (IS_ERR(data->regmap)) {
@@ -342,10 +346,9 @@ static int snvs_rtc_probe(struct platform_device *pdev)
goto error_rtc_device_register;
}
- data->rtc = devm_rtc_device_register(&pdev->dev, pdev->name,
- &snvs_rtc_ops, THIS_MODULE);
- if (IS_ERR(data->rtc)) {
- ret = PTR_ERR(data->rtc);
+ data->rtc->ops = &snvs_rtc_ops;
+ ret = rtc_register_device(data->rtc);
+ if (ret) {
dev_err(&pdev->dev, "failed to register rtc: %d\n", ret);
goto error_rtc_device_register;
}
generated by cgit v1.2.3 (git 2.0.4) at 2024-05-15 02:30:52 +0000