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-rw-r--r--drivers/rtc/Kconfig17
-rw-r--r--drivers/rtc/Makefile1
-rw-r--r--drivers/rtc/interface.c34
-rw-r--r--drivers/rtc/rtc-ab-eoz9.c135
-rw-r--r--drivers/rtc/rtc-bd70528.c104
-rw-r--r--drivers/rtc/rtc-ds1307.c56
-rw-r--r--drivers/rtc/rtc-ds1511.c6
-rw-r--r--drivers/rtc/rtc-fsl-ftm-alarm.c1
-rw-r--r--drivers/rtc/rtc-hid-sensor-time.c4
-rw-r--r--drivers/rtc/rtc-imx-sc.c11
-rw-r--r--drivers/rtc/rtc-imxdi.c4
-rw-r--r--drivers/rtc/rtc-m48t59.c2
-rw-r--r--drivers/rtc/rtc-mxc.c2
-rw-r--r--drivers/rtc/rtc-ntxec.c145
-rw-r--r--drivers/rtc/rtc-omap.c5
-rw-r--r--drivers/rtc/rtc-pcf85063.c7
-rw-r--r--drivers/rtc/rtc-pcf8523.c196
-rw-r--r--drivers/rtc/rtc-pm8xxx.c11
-rw-r--r--drivers/rtc/rtc-rv3028.c4
-rw-r--r--drivers/rtc/rtc-rx6110.c7
-rw-r--r--drivers/rtc/rtc-s5m.c6
-rw-r--r--drivers/rtc/rtc-spear.c6
-rw-r--r--drivers/rtc/rtc-tps65910.c1
-rw-r--r--drivers/rtc/sysfs.c2
24 files changed, 612 insertions, 155 deletions
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index ce723dc54aa4..d8c13fded164 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -501,11 +501,11 @@ config RTC_DRV_M41T80_WDT
watchdog timer in the ST M41T60 and M41T80 RTC chips series.
config RTC_DRV_BD70528
- tristate "ROHM BD70528 PMIC RTC"
- depends on MFD_ROHM_BD70528 && (BD70528_WATCHDOG || !BD70528_WATCHDOG)
+ tristate "ROHM BD70528, BD71815 and BD71828 PMIC RTC"
+ depends on MFD_ROHM_BD71828 || MFD_ROHM_BD70528 && (BD70528_WATCHDOG || !BD70528_WATCHDOG)
help
If you say Y here you will get support for the RTC
- block on ROHM BD70528 and BD71828 Power Management IC.
+ block on ROHM BD70528, BD71815 and BD71828 Power Management IC.
This driver can also be built as a module. If so, the module
will be called rtc-bd70528.
@@ -1296,6 +1296,14 @@ config RTC_DRV_CROS_EC
This driver can also be built as a module. If so, the module
will be called rtc-cros-ec.
+config RTC_DRV_NTXEC
+ tristate "Netronix embedded controller RTC"
+ depends on MFD_NTXEC
+ help
+ Say yes here if you want to support the RTC functionality of the
+ embedded controller found in certain e-book readers designed by the
+ original design manufacturer Netronix.
+
comment "on-CPU RTC drivers"
config RTC_DRV_ASM9260
@@ -1331,6 +1339,7 @@ config RTC_DRV_DIGICOLOR
config RTC_DRV_IMXDI
tristate "Freescale IMX DryIce Real Time Clock"
depends on ARCH_MXC
+ depends on OF
help
Support for Freescale IMX DryIce RTC
@@ -1898,7 +1907,7 @@ config RTC_DRV_HID_SENSOR_TIME
config RTC_DRV_GOLDFISH
tristate "Goldfish Real Time Clock"
- depends on OF && HAS_IOMEM
+ depends on HAS_IOMEM
help
Say yes to enable RTC driver for the Goldfish based virtual platform.
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index 4e930183c170..2dd0dd956b0e 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -108,6 +108,7 @@ obj-$(CONFIG_RTC_DRV_MT7622) += rtc-mt7622.o
obj-$(CONFIG_RTC_DRV_MV) += rtc-mv.o
obj-$(CONFIG_RTC_DRV_MXC) += rtc-mxc.o
obj-$(CONFIG_RTC_DRV_MXC_V2) += rtc-mxc_v2.o
+obj-$(CONFIG_RTC_DRV_NTXEC) += rtc-ntxec.o
obj-$(CONFIG_RTC_DRV_OMAP) += rtc-omap.o
obj-$(CONFIG_RTC_DRV_OPAL) += rtc-opal.o
obj-$(CONFIG_RTC_DRV_PALMAS) += rtc-palmas.o
diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c
index dcb34c73319e..9a2bd4947007 100644
--- a/drivers/rtc/interface.c
+++ b/drivers/rtc/interface.c
@@ -545,7 +545,7 @@ EXPORT_SYMBOL_GPL(rtc_alarm_irq_enable);
int rtc_update_irq_enable(struct rtc_device *rtc, unsigned int enabled)
{
- int rc = 0, err;
+ int err;
err = mutex_lock_interruptible(&rtc->ops_lock);
if (err)
@@ -561,17 +561,21 @@ int rtc_update_irq_enable(struct rtc_device *rtc, unsigned int enabled)
if (rtc->uie_rtctimer.enabled == enabled)
goto out;
- if (rtc->uie_unsupported) {
- err = -EINVAL;
- goto out;
+ if (rtc->uie_unsupported || !test_bit(RTC_FEATURE_ALARM, rtc->features)) {
+ mutex_unlock(&rtc->ops_lock);
+#ifdef CONFIG_RTC_INTF_DEV_UIE_EMUL
+ return rtc_dev_update_irq_enable_emul(rtc, enabled);
+#else
+ return -EINVAL;
+#endif
}
if (enabled) {
struct rtc_time tm;
ktime_t now, onesec;
- rc = __rtc_read_time(rtc, &tm);
- if (rc)
+ err = __rtc_read_time(rtc, &tm);
+ if (err)
goto out;
onesec = ktime_set(1, 0);
now = rtc_tm_to_ktime(tm);
@@ -585,24 +589,6 @@ int rtc_update_irq_enable(struct rtc_device *rtc, unsigned int enabled)
out:
mutex_unlock(&rtc->ops_lock);
- /*
- * __rtc_read_time() failed, this probably means that the RTC time has
- * never been set or less probably there is a transient error on the
- * bus. In any case, avoid enabling emulation has this will fail when
- * reading the time too.
- */
- if (rc)
- return rc;
-
-#ifdef CONFIG_RTC_INTF_DEV_UIE_EMUL
- /*
- * Enable emulation if the driver returned -EINVAL to signal that it has
- * been configured without interrupts or they are not available at the
- * moment.
- */
- if (err == -EINVAL)
- err = rtc_dev_update_irq_enable_emul(rtc, enabled);
-#endif
return err;
}
EXPORT_SYMBOL_GPL(rtc_update_irq_enable);
diff --git a/drivers/rtc/rtc-ab-eoz9.c b/drivers/rtc/rtc-ab-eoz9.c
index b20d8f26dcdb..a9b355510cd4 100644
--- a/drivers/rtc/rtc-ab-eoz9.c
+++ b/drivers/rtc/rtc-ab-eoz9.c
@@ -11,6 +11,7 @@
#include <linux/bcd.h>
#include <linux/of.h>
#include <linux/regmap.h>
+#include <linux/bitfield.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
@@ -57,6 +58,24 @@
#define ABEOZ9_SEC_LEN 7
+#define ABEOZ9_REG_ALARM_SEC 0x10
+#define ABEOZ9_BIT_ALARM_SEC GENMASK(6, 0)
+#define ABEOZ9_REG_ALARM_MIN 0x11
+#define ABEOZ9_BIT_ALARM_MIN GENMASK(6, 0)
+#define ABEOZ9_REG_ALARM_HOURS 0x12
+#define ABEOZ9_BIT_ALARM_HOURS_PM BIT(5)
+#define ABEOZ9_BIT_ALARM_HOURS GENMASK(4, 0)
+#define ABEOZ9_REG_ALARM_DAYS 0x13
+#define ABEOZ9_BIT_ALARM_DAYS GENMASK(5, 0)
+#define ABEOZ9_REG_ALARM_WEEKDAYS 0x14
+#define ABEOZ9_BIT_ALARM_WEEKDAYS GENMASK(2, 0)
+#define ABEOZ9_REG_ALARM_MONTHS 0x15
+#define ABEOZ9_BIT_ALARM_MONTHS GENMASK(4, 0)
+#define ABEOZ9_REG_ALARM_YEARS 0x16
+
+#define ABEOZ9_ALARM_LEN 7
+#define ABEOZ9_BIT_ALARM_AE BIT(7)
+
#define ABEOZ9_REG_REG_TEMP 0x20
#define ABEOZ953_TEMP_MAX 120
#define ABEOZ953_TEMP_MIN -60
@@ -186,6 +205,98 @@ static int abeoz9_rtc_set_time(struct device *dev, struct rtc_time *tm)
return abeoz9_reset_validity(regmap);
}
+static int abeoz9_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alarm)
+{
+ struct abeoz9_rtc_data *data = dev_get_drvdata(dev);
+ struct regmap *regmap = data->regmap;
+ u8 regs[ABEOZ9_ALARM_LEN];
+ u8 val[2];
+ int ret;
+
+ ret = abeoz9_check_validity(dev);
+ if (ret)
+ return ret;
+
+ ret = regmap_bulk_read(regmap, ABEOZ9_REG_CTRL_INT, val, sizeof(val));
+ if (ret)
+ return ret;
+
+ alarm->enabled = val[0] & ABEOZ9_REG_CTRL_INT_AIE;
+ alarm->pending = val[1] & ABEOZ9_REG_CTRL_INT_FLAG_AF;
+
+ ret = regmap_bulk_read(regmap, ABEOZ9_REG_ALARM_SEC, regs, sizeof(regs));
+ if (ret)
+ return ret;
+
+ alarm->time.tm_sec = bcd2bin(FIELD_GET(ABEOZ9_BIT_ALARM_SEC, regs[0]));
+ alarm->time.tm_min = bcd2bin(FIELD_GET(ABEOZ9_BIT_ALARM_MIN, regs[1]));
+ alarm->time.tm_hour = bcd2bin(FIELD_GET(ABEOZ9_BIT_ALARM_HOURS, regs[2]));
+ if (FIELD_GET(ABEOZ9_BIT_ALARM_HOURS_PM, regs[2]))
+ alarm->time.tm_hour += 12;
+
+ alarm->time.tm_mday = bcd2bin(FIELD_GET(ABEOZ9_BIT_ALARM_DAYS, regs[3]));
+
+ return 0;
+}
+
+static int abeoz9_rtc_alarm_irq_enable(struct device *dev, u32 enable)
+{
+ struct abeoz9_rtc_data *data = dev_get_drvdata(dev);
+
+ return regmap_update_bits(data->regmap, ABEOZ9_REG_CTRL_INT,
+ ABEOZ9_REG_CTRL_INT_AIE,
+ FIELD_PREP(ABEOZ9_REG_CTRL_INT_AIE, enable));
+}
+
+static int abeoz9_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alarm)
+{
+ struct abeoz9_rtc_data *data = dev_get_drvdata(dev);
+ u8 regs[ABEOZ9_ALARM_LEN] = {0};
+ int ret;
+
+ ret = regmap_update_bits(data->regmap, ABEOZ9_REG_CTRL_INT_FLAG,
+ ABEOZ9_REG_CTRL_INT_FLAG_AF, 0);
+ if (ret)
+ return ret;
+
+ regs[0] = ABEOZ9_BIT_ALARM_AE | FIELD_PREP(ABEOZ9_BIT_ALARM_SEC,
+ bin2bcd(alarm->time.tm_sec));
+ regs[1] = ABEOZ9_BIT_ALARM_AE | FIELD_PREP(ABEOZ9_BIT_ALARM_MIN,
+ bin2bcd(alarm->time.tm_min));
+ regs[2] = ABEOZ9_BIT_ALARM_AE | FIELD_PREP(ABEOZ9_BIT_ALARM_HOURS,
+ bin2bcd(alarm->time.tm_hour));
+ regs[3] = ABEOZ9_BIT_ALARM_AE | FIELD_PREP(ABEOZ9_BIT_ALARM_DAYS,
+ bin2bcd(alarm->time.tm_mday));
+
+ ret = regmap_bulk_write(data->regmap, ABEOZ9_REG_ALARM_SEC, regs,
+ sizeof(regs));
+ if (ret)
+ return ret;
+
+ return abeoz9_rtc_alarm_irq_enable(dev, alarm->enabled);
+}
+
+static irqreturn_t abeoz9_rtc_irq(int irq, void *dev)
+{
+ struct abeoz9_rtc_data *data = dev_get_drvdata(dev);
+ unsigned int val;
+ int ret;
+
+ ret = regmap_read(data->regmap, ABEOZ9_REG_CTRL_INT_FLAG, &val);
+ if (ret)
+ return IRQ_NONE;
+
+ if (!FIELD_GET(ABEOZ9_REG_CTRL_INT_FLAG_AF, val))
+ return IRQ_NONE;
+
+ regmap_update_bits(data->regmap, ABEOZ9_REG_CTRL_INT_FLAG,
+ ABEOZ9_REG_CTRL_INT_FLAG_AF, 0);
+
+ rtc_update_irq(data->rtc, 1, RTC_IRQF | RTC_AF);
+
+ return IRQ_HANDLED;
+}
+
static int abeoz9_trickle_parse_dt(struct device_node *node)
{
u32 ohms = 0;
@@ -258,12 +369,16 @@ static int abeoz9_rtc_setup(struct device *dev, struct device_node *node)
static const struct rtc_class_ops rtc_ops = {
.read_time = abeoz9_rtc_get_time,
- .set_time = abeoz9_rtc_set_time,
+ .set_time = abeoz9_rtc_set_time,
+ .read_alarm = abeoz9_rtc_read_alarm,
+ .set_alarm = abeoz9_rtc_set_alarm,
+ .alarm_irq_enable = abeoz9_rtc_alarm_irq_enable,
};
static const struct regmap_config abeoz9_rtc_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
+ .max_register = 0x3f,
};
#if IS_REACHABLE(CONFIG_HWMON)
@@ -419,6 +534,24 @@ static int abeoz9_probe(struct i2c_client *client,
data->rtc->ops = &rtc_ops;
data->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000;
data->rtc->range_max = RTC_TIMESTAMP_END_2099;
+ data->rtc->uie_unsupported = 1;
+ clear_bit(RTC_FEATURE_ALARM, data->rtc->features);
+
+ if (client->irq > 0) {
+ ret = devm_request_threaded_irq(dev, client->irq, NULL,
+ abeoz9_rtc_irq,
+ IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+ dev_name(dev), dev);
+ if (ret) {
+ dev_err(dev, "failed to request alarm irq\n");
+ return ret;
+ }
+ }
+
+ if (client->irq > 0 || device_property_read_bool(dev, "wakeup-source")) {
+ ret = device_init_wakeup(dev, true);
+ set_bit(RTC_FEATURE_ALARM, data->rtc->features);
+ }
ret = devm_rtc_register_device(data->rtc);
if (ret)
diff --git a/drivers/rtc/rtc-bd70528.c b/drivers/rtc/rtc-bd70528.c
index 17cb67f5bf6e..6454afca02a6 100644
--- a/drivers/rtc/rtc-bd70528.c
+++ b/drivers/rtc/rtc-bd70528.c
@@ -6,6 +6,7 @@
#include <linux/bcd.h>
#include <linux/mfd/rohm-bd70528.h>
+#include <linux/mfd/rohm-bd71815.h>
#include <linux/mfd/rohm-bd71828.h>
#include <linux/module.h>
#include <linux/of.h>
@@ -14,6 +15,12 @@
#include <linux/rtc.h>
/*
+ * On BD71828 and BD71815 the ALM0 MASK is 14 bytes after the ALM0
+ * block start
+ */
+#define BD718XX_ALM_EN_OFFSET 14
+
+/*
* We read regs RTC_SEC => RTC_YEAR
* this struct is ordered according to chip registers.
* Keep it u8 only (or packed) to avoid padding issues.
@@ -52,8 +59,10 @@ struct bd70528_rtc_alm {
struct bd70528_rtc {
struct rohm_regmap_dev *parent;
+ struct regmap *regmap;
struct device *dev;
u8 reg_time_start;
+ u8 bd718xx_alm_block_start;
bool has_rtc_timers;
};
@@ -234,10 +243,9 @@ static int bd71828_set_alarm(struct device *dev, struct rtc_wkalrm *a)
int ret;
struct bd71828_rtc_alm alm;
struct bd70528_rtc *r = dev_get_drvdata(dev);
- struct rohm_regmap_dev *parent = r->parent;
- ret = regmap_bulk_read(parent->regmap, BD71828_REG_RTC_ALM_START,
- &alm, sizeof(alm));
+ ret = regmap_bulk_read(r->regmap, r->bd718xx_alm_block_start, &alm,
+ sizeof(alm));
if (ret) {
dev_err(dev, "Failed to read alarm regs\n");
return ret;
@@ -250,8 +258,8 @@ static int bd71828_set_alarm(struct device *dev, struct rtc_wkalrm *a)
else
alm.alm_mask |= BD70528_MASK_ALM_EN;
- ret = regmap_bulk_write(parent->regmap, BD71828_REG_RTC_ALM_START,
- &alm, sizeof(alm));
+ ret = regmap_bulk_write(r->regmap, r->bd718xx_alm_block_start, &alm,
+ sizeof(alm));
if (ret)
dev_err(dev, "Failed to set alarm time\n");
@@ -265,17 +273,16 @@ static int bd70528_set_alarm(struct device *dev, struct rtc_wkalrm *a)
struct bd70528_rtc_alm alm;
int ret;
struct bd70528_rtc *r = dev_get_drvdata(dev);
- struct rohm_regmap_dev *parent = r->parent;
- ret = regmap_bulk_read(parent->regmap, BD70528_REG_RTC_WAKE_START,
- &wake, sizeof(wake));
+ ret = regmap_bulk_read(r->regmap, BD70528_REG_RTC_WAKE_START, &wake,
+ sizeof(wake));
if (ret) {
dev_err(dev, "Failed to read wake regs\n");
return ret;
}
- ret = regmap_bulk_read(parent->regmap, BD70528_REG_RTC_ALM_START,
- &alm, sizeof(alm));
+ ret = regmap_bulk_read(r->regmap, BD70528_REG_RTC_ALM_START, &alm,
+ sizeof(alm));
if (ret) {
dev_err(dev, "Failed to read alarm regs\n");
return ret;
@@ -292,15 +299,14 @@ static int bd70528_set_alarm(struct device *dev, struct rtc_wkalrm *a)
wake.ctrl &= ~BD70528_MASK_WAKE_EN;
}
- ret = regmap_bulk_write(parent->regmap,
- BD70528_REG_RTC_WAKE_START, &wake,
+ ret = regmap_bulk_write(r->regmap, BD70528_REG_RTC_WAKE_START, &wake,
sizeof(wake));
if (ret) {
dev_err(dev, "Failed to set wake time\n");
return ret;
}
- ret = regmap_bulk_write(parent->regmap, BD70528_REG_RTC_ALM_START,
- &alm, sizeof(alm));
+ ret = regmap_bulk_write(r->regmap, BD70528_REG_RTC_ALM_START, &alm,
+ sizeof(alm));
if (ret)
dev_err(dev, "Failed to set alarm time\n");
@@ -312,10 +318,9 @@ static int bd71828_read_alarm(struct device *dev, struct rtc_wkalrm *a)
int ret;
struct bd71828_rtc_alm alm;
struct bd70528_rtc *r = dev_get_drvdata(dev);
- struct rohm_regmap_dev *parent = r->parent;
- ret = regmap_bulk_read(parent->regmap, BD71828_REG_RTC_ALM_START,
- &alm, sizeof(alm));
+ ret = regmap_bulk_read(r->regmap, r->bd718xx_alm_block_start, &alm,
+ sizeof(alm));
if (ret) {
dev_err(dev, "Failed to read alarm regs\n");
return ret;
@@ -336,10 +341,9 @@ static int bd70528_read_alarm(struct device *dev, struct rtc_wkalrm *a)
struct bd70528_rtc_alm alm;
int ret;
struct bd70528_rtc *r = dev_get_drvdata(dev);
- struct rohm_regmap_dev *parent = r->parent;
- ret = regmap_bulk_read(parent->regmap, BD70528_REG_RTC_ALM_START,
- &alm, sizeof(alm));
+ ret = regmap_bulk_read(r->regmap, BD70528_REG_RTC_ALM_START, &alm,
+ sizeof(alm));
if (ret) {
dev_err(dev, "Failed to read alarm regs\n");
return ret;
@@ -360,14 +364,12 @@ static int bd70528_set_time_locked(struct device *dev, struct rtc_time *t)
int ret, tmpret, old_states;
struct bd70528_rtc_data rtc_data;
struct bd70528_rtc *r = dev_get_drvdata(dev);
- struct rohm_regmap_dev *parent = r->parent;
ret = bd70528_disable_rtc_based_timers(r, &old_states);
if (ret)
return ret;
- tmpret = regmap_bulk_read(parent->regmap,
- r->reg_time_start, &rtc_data,
+ tmpret = regmap_bulk_read(r->regmap, r->reg_time_start, &rtc_data,
sizeof(rtc_data));
if (tmpret) {
dev_err(dev, "Failed to read RTC time registers\n");
@@ -375,8 +377,7 @@ static int bd70528_set_time_locked(struct device *dev, struct rtc_time *t)
}
tm2rtc(t, &rtc_data);
- tmpret = regmap_bulk_write(parent->regmap,
- r->reg_time_start, &rtc_data,
+ tmpret = regmap_bulk_write(r->regmap, r->reg_time_start, &rtc_data,
sizeof(rtc_data));
if (tmpret) {
dev_err(dev, "Failed to set RTC time\n");
@@ -410,13 +411,11 @@ static int bd70528_set_time(struct device *dev, struct rtc_time *t)
static int bd70528_get_time(struct device *dev, struct rtc_time *t)
{
struct bd70528_rtc *r = dev_get_drvdata(dev);
- struct rohm_regmap_dev *parent = r->parent;
struct bd70528_rtc_data rtc_data;
int ret;
/* read the RTC date and time registers all at once */
- ret = regmap_bulk_read(parent->regmap,
- r->reg_time_start, &rtc_data,
+ ret = regmap_bulk_read(r->regmap, r->reg_time_start, &rtc_data,
sizeof(rtc_data));
if (ret) {
dev_err(dev, "Failed to read RTC time (err %d)\n", ret);
@@ -443,7 +442,7 @@ static int bd70528_alm_enable(struct device *dev, unsigned int enabled)
dev_err(dev, "Failed to change wake state\n");
goto out_unlock;
}
- ret = regmap_update_bits(r->parent->regmap, BD70528_REG_RTC_ALM_MASK,
+ ret = regmap_update_bits(r->regmap, BD70528_REG_RTC_ALM_MASK,
BD70528_MASK_ALM_EN, enableval);
if (ret)
dev_err(dev, "Failed to change alarm state\n");
@@ -462,8 +461,9 @@ static int bd71828_alm_enable(struct device *dev, unsigned int enabled)
if (!enabled)
enableval = 0;
- ret = regmap_update_bits(r->parent->regmap, BD71828_REG_RTC_ALM0_MASK,
- BD70528_MASK_ALM_EN, enableval);
+ ret = regmap_update_bits(r->regmap, r->bd718xx_alm_block_start +
+ BD718XX_ALM_EN_OFFSET, BD70528_MASK_ALM_EN,
+ enableval);
if (ret)
dev_err(dev, "Failed to change alarm state\n");
@@ -498,7 +498,6 @@ static int bd70528_probe(struct platform_device *pdev)
{
struct bd70528_rtc *bd_rtc;
const struct rtc_class_ops *rtc_ops;
- struct rohm_regmap_dev *parent;
const char *irq_name;
int ret;
struct rtc_device *rtc;
@@ -508,20 +507,25 @@ static int bd70528_probe(struct platform_device *pdev)
u8 hour_reg;
enum rohm_chip_type chip = platform_get_device_id(pdev)->driver_data;
- parent = dev_get_drvdata(pdev->dev.parent);
- if (!parent) {
- dev_err(&pdev->dev, "No MFD driver data\n");
- return -EINVAL;
- }
bd_rtc = devm_kzalloc(&pdev->dev, sizeof(*bd_rtc), GFP_KERNEL);
if (!bd_rtc)
return -ENOMEM;
- bd_rtc->parent = parent;
+ bd_rtc->regmap = dev_get_regmap(pdev->dev.parent, NULL);
+ if (!bd_rtc->regmap) {
+ dev_err(&pdev->dev, "No regmap\n");
+ return -EINVAL;
+ }
+
bd_rtc->dev = &pdev->dev;
switch (chip) {
case ROHM_CHIP_TYPE_BD70528:
+ bd_rtc->parent = dev_get_drvdata(pdev->dev.parent);
+ if (!bd_rtc->parent) {
+ dev_err(&pdev->dev, "No MFD data\n");
+ return -EINVAL;
+ }
irq_name = "bd70528-rtc-alm";
bd_rtc->has_rtc_timers = true;
bd_rtc->reg_time_start = BD70528_REG_RTC_START;
@@ -529,9 +533,28 @@ static int bd70528_probe(struct platform_device *pdev)
enable_main_irq = true;
rtc_ops = &bd70528_rtc_ops;
break;
+ case ROHM_CHIP_TYPE_BD71815:
+ irq_name = "bd71815-rtc-alm-0";
+ bd_rtc->reg_time_start = BD71815_REG_RTC_START;
+
+ /*
+ * See also BD718XX_ALM_EN_OFFSET:
+ * This works for BD71828 and BD71815 as they have same offset
+ * between ALM0 start and ALM0_MASK. If new ICs are to be
+ * added this requires proper check as ALM0_MASK is not located
+ * at the end of ALM0 block - but after all ALM blocks so if
+ * amount of ALMs differ the offset to enable/disable is likely
+ * to be incorrect and enable/disable must be given as own
+ * reg address here.
+ */
+ bd_rtc->bd718xx_alm_block_start = BD71815_REG_RTC_ALM_START;
+ hour_reg = BD71815_REG_HOUR;
+ rtc_ops = &bd71828_rtc_ops;
+ break;
case ROHM_CHIP_TYPE_BD71828:
irq_name = "bd71828-rtc-alm-0";
bd_rtc->reg_time_start = BD71828_REG_RTC_START;
+ bd_rtc->bd718xx_alm_block_start = BD71828_REG_RTC_ALM_START;
hour_reg = BD71828_REG_RTC_HOUR;
rtc_ops = &bd71828_rtc_ops;
break;
@@ -547,7 +570,7 @@ static int bd70528_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, bd_rtc);
- ret = regmap_read(parent->regmap, hour_reg, &hr);
+ ret = regmap_read(bd_rtc->regmap, hour_reg, &hr);
if (ret) {
dev_err(&pdev->dev, "Failed to reag RTC clock\n");
@@ -595,7 +618,7 @@ static int bd70528_probe(struct platform_device *pdev)
* from sub-registers when IRQ is disabled or freed.
*/
if (enable_main_irq) {
- ret = regmap_update_bits(parent->regmap,
+ ret = regmap_update_bits(bd_rtc->regmap,
BD70528_REG_INT_MAIN_MASK,
BD70528_INT_RTC_MASK, 0);
if (ret) {
@@ -610,6 +633,7 @@ static int bd70528_probe(struct platform_device *pdev)
static const struct platform_device_id bd718x7_rtc_id[] = {
{ "bd70528-rtc", ROHM_CHIP_TYPE_BD70528 },
{ "bd71828-rtc", ROHM_CHIP_TYPE_BD71828 },
+ { "bd71815-rtc", ROHM_CHIP_TYPE_BD71815 },
{ },
};
MODULE_DEVICE_TABLE(platform, bd718x7_rtc_id);
diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c
index cd8e438bc9c4..336cb9aa5e33 100644
--- a/drivers/rtc/rtc-ds1307.c
+++ b/drivers/rtc/rtc-ds1307.c
@@ -169,9 +169,6 @@ enum ds_type {
struct ds1307 {
enum ds_type type;
- unsigned long flags;
-#define HAS_NVRAM 0 /* bit 0 == sysfs file active */
-#define HAS_ALARM 1 /* bit 1 == irq claimed */
struct device *dev;
struct regmap *regmap;
const char *name;
@@ -296,7 +293,11 @@ static int ds1307_get_time(struct device *dev, struct rtc_time *t)
t->tm_min = bcd2bin(regs[DS1307_REG_MIN] & 0x7f);
tmp = regs[DS1307_REG_HOUR] & 0x3f;
t->tm_hour = bcd2bin(tmp);
- t->tm_wday = bcd2bin(regs[DS1307_REG_WDAY] & 0x07) - 1;
+ /* rx8130 is bit position, not BCD */
+ if (ds1307->type == rx_8130)
+ t->tm_wday = fls(regs[DS1307_REG_WDAY] & 0x7f);
+ else
+ t->tm_wday = bcd2bin(regs[DS1307_REG_WDAY] & 0x07) - 1;
t->tm_mday = bcd2bin(regs[DS1307_REG_MDAY] & 0x3f);
tmp = regs[DS1307_REG_MONTH] & 0x1f;
t->tm_mon = bcd2bin(tmp) - 1;
@@ -343,7 +344,11 @@ static int ds1307_set_time(struct device *dev, struct rtc_time *t)
regs[DS1307_REG_SECS] = bin2bcd(t->tm_sec);
regs[DS1307_REG_MIN] = bin2bcd(t->tm_min);
regs[DS1307_REG_HOUR] = bin2bcd(t->tm_hour);
- regs[DS1307_REG_WDAY] = bin2bcd(t->tm_wday + 1);
+ /* rx8130 is bit position, not BCD */
+ if (ds1307->type == rx_8130)
+ regs[DS1307_REG_WDAY] = 1 << t->tm_wday;
+ else
+ regs[DS1307_REG_WDAY] = bin2bcd(t->tm_wday + 1);
regs[DS1307_REG_MDAY] = bin2bcd(t->tm_mday);
regs[DS1307_REG_MONTH] = bin2bcd(t->tm_mon + 1);
@@ -411,9 +416,6 @@ static int ds1337_read_alarm(struct device *dev, struct rtc_wkalrm *t)
int ret;
u8 regs[9];
- if (!test_bit(HAS_ALARM, &ds1307->flags))
- return -EINVAL;
-
/* read all ALARM1, ALARM2, and status registers at once */
ret = regmap_bulk_read(ds1307->regmap, DS1339_REG_ALARM1_SECS,
regs, sizeof(regs));
@@ -454,9 +456,6 @@ static int ds1337_set_alarm(struct device *dev, struct rtc_wkalrm *t)
u8 control, status;
int ret;
- if (!test_bit(HAS_ALARM, &ds1307->flags))
- return -EINVAL;
-
dev_dbg(dev, "%s secs=%d, mins=%d, "
"hours=%d, mday=%d, enabled=%d, pending=%d\n",
"alarm set", t->time.tm_sec, t->time.tm_min,
@@ -512,9 +511,6 @@ static int ds1307_alarm_irq_enable(struct device *dev, unsigned int enabled)
{
struct ds1307 *ds1307 = dev_get_drvdata(dev);
- if (!test_bit(HAS_ALARM, &ds1307->flags))
- return -ENOTTY;
-
return regmap_update_bits(ds1307->regmap, DS1337_REG_CONTROL,
DS1337_BIT_A1IE,
enabled ? DS1337_BIT_A1IE : 0);
@@ -592,9 +588,6 @@ static int rx8130_read_alarm(struct device *dev, struct rtc_wkalrm *t)
u8 ald[3], ctl[3];
int ret;
- if (!test_bit(HAS_ALARM, &ds1307->flags))
- return -EINVAL;
-
/* Read alarm registers. */
ret = regmap_bulk_read(ds1307->regmap, RX8130_REG_ALARM_MIN, ald,
sizeof(ald));
@@ -634,9 +627,6 @@ static int rx8130_set_alarm(struct device *dev, struct rtc_wkalrm *t)
u8 ald[3], ctl[3];
int ret;
- if (!test_bit(HAS_ALARM, &ds1307->flags))
- return -EINVAL;
-
dev_dbg(dev, "%s, sec=%d min=%d hour=%d wday=%d mday=%d mon=%d "
"enabled=%d pending=%d\n", __func__,
t->time.tm_sec, t->time.tm_min, t->time.tm_hour,
@@ -681,9 +671,6 @@ static int rx8130_alarm_irq_enable(struct device *dev, unsigned int enabled)
struct ds1307 *ds1307 = dev_get_drvdata(dev);
int ret, reg;
- if (!test_bit(HAS_ALARM, &ds1307->flags))
- return -EINVAL;
-
ret = regmap_read(ds1307->regmap, RX8130_REG_CONTROL0, &reg);
if (ret < 0)
return ret;
@@ -735,9 +722,6 @@ static int mcp794xx_read_alarm(struct device *dev, struct rtc_wkalrm *t)
u8 regs[10];
int ret;
- if (!test_bit(HAS_ALARM, &ds1307->flags))
- return -EINVAL;
-
/* Read control and alarm 0 registers. */
ret = regmap_bulk_read(ds1307->regmap, MCP794XX_REG_CONTROL, regs,
sizeof(regs));
@@ -793,9 +777,6 @@ static int mcp794xx_set_alarm(struct device *dev, struct rtc_wkalrm *t)
unsigned char regs[10];
int wday, ret;
- if (!test_bit(HAS_ALARM, &ds1307->flags))
- return -EINVAL;
-
wday = mcp794xx_alm_weekday(dev, &t->time);
if (wday < 0)
return wday;
@@ -842,9 +823,6 @@ static int mcp794xx_alarm_irq_enable(struct device *dev, unsigned int enabled)
{
struct ds1307 *ds1307 = dev_get_drvdata(dev);
- if (!test_bit(HAS_ALARM, &ds1307->flags))
- return -EINVAL;
-
return regmap_update_bits(ds1307->regmap, MCP794XX_REG_CONTROL,
MCP794XX_BIT_ALM0_EN,
enabled ? MCP794XX_BIT_ALM0_EN : 0);
@@ -1641,7 +1619,7 @@ static int ds3231_clks_register(struct ds1307 *ds1307)
* Interrupt signal due to alarm conditions and square-wave
* output share same pin, so don't initialize both.
*/
- if (i == DS3231_CLK_SQW && test_bit(HAS_ALARM, &ds1307->flags))
+ if (i == DS3231_CLK_SQW && test_bit(RTC_FEATURE_ALARM, ds1307->rtc->features))
continue;
init.name = ds3231_clks_names[i];
@@ -1964,15 +1942,15 @@ static int ds1307_probe(struct i2c_client *client,
bin2bcd(tmp));
}
- if (want_irq || ds1307_can_wakeup_device) {
- device_set_wakeup_capable(ds1307->dev, true);
- set_bit(HAS_ALARM, &ds1307->flags);
- }
-
ds1307->rtc = devm_rtc_allocate_device(ds1307->dev);
if (IS_ERR(ds1307->rtc))
return PTR_ERR(ds1307->rtc);
+ if (want_irq || ds1307_can_wakeup_device)
+ device_set_wakeup_capable(ds1307->dev, true);
+ else
+ clear_bit(RTC_FEATURE_ALARM, ds1307->rtc->features);
+
if (ds1307_can_wakeup_device && !want_irq) {
dev_info(ds1307->dev,
"'wakeup-source' is set, request for an IRQ is disabled!\n");
@@ -1988,7 +1966,7 @@ static int ds1307_probe(struct i2c_client *client,
if (err) {
client->irq = 0;
device_set_wakeup_capable(ds1307->dev, false);
- clear_bit(HAS_ALARM, &ds1307->flags);
+ clear_bit(RTC_FEATURE_ALARM, ds1307->rtc->features);
dev_err(ds1307->dev, "unable to request IRQ!\n");
} else {
dev_dbg(ds1307->dev, "got IRQ %d\n", client->irq);
diff --git a/drivers/rtc/rtc-ds1511.c b/drivers/rtc/rtc-ds1511.c
index bda884333082..1109cad83838 100644
--- a/drivers/rtc/rtc-ds1511.c
+++ b/drivers/rtc/rtc-ds1511.c
@@ -104,12 +104,6 @@ rtc_write(uint8_t val, uint32_t reg)
writeb(val, ds1511_base + (reg * reg_spacing));
}
-static inline void
-rtc_write_alarm(uint8_t val, enum ds1511reg reg)
-{
- rtc_write((val | 0x80), reg);
-}
-
static noinline uint8_t
rtc_read(enum ds1511reg reg)
{
diff --git a/drivers/rtc/rtc-fsl-ftm-alarm.c b/drivers/rtc/rtc-fsl-ftm-alarm.c
index 57cc09d0a806..c0df49fb978c 100644
--- a/drivers/rtc/rtc-fsl-ftm-alarm.c
+++ b/drivers/rtc/rtc-fsl-ftm-alarm.c
@@ -310,6 +310,7 @@ static const struct of_device_id ftm_rtc_match[] = {
{ .compatible = "fsl,lx2160a-ftm-alarm", },
{ },
};
+MODULE_DEVICE_TABLE(of, ftm_rtc_match);
static const struct acpi_device_id ftm_imx_acpi_ids[] = {
{"NXP0014",},
diff --git a/drivers/rtc/rtc-hid-sensor-time.c b/drivers/rtc/rtc-hid-sensor-time.c
index 1b42ee0758d2..47cd12db2356 100644
--- a/drivers/rtc/rtc-hid-sensor-time.c
+++ b/drivers/rtc/rtc-hid-sensor-time.c
@@ -238,7 +238,9 @@ static int hid_time_probe(struct platform_device *pdev)
ret = hid_sensor_parse_common_attributes(hsdev,
HID_USAGE_SENSOR_TIME,
- &time_state->common_attributes);
+ &time_state->common_attributes,
+ NULL,
+ 0);
if (ret) {
dev_err(&pdev->dev, "failed to setup common attributes!\n");
return ret;
diff --git a/drivers/rtc/rtc-imx-sc.c b/drivers/rtc/rtc-imx-sc.c
index cc9fbab49999..814d516645e2 100644
--- a/drivers/rtc/rtc-imx-sc.c
+++ b/drivers/rtc/rtc-imx-sc.c
@@ -80,16 +80,6 @@ static int imx_sc_rtc_alarm_irq_enable(struct device *dev, unsigned int enable)
return imx_scu_irq_group_enable(SC_IRQ_GROUP_RTC, SC_IRQ_RTC, enable);
}
-static int imx_sc_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
-{
- /*
- * SCU firmware does NOT provide read alarm API, but .read_alarm
- * callback is required by RTC framework to support alarm function,
- * so just return here.
- */
- return 0;
-}
-
static int imx_sc_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
{
struct imx_sc_msg_timer_rtc_set_alarm msg;
@@ -127,7 +117,6 @@ static int imx_sc_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
static const struct rtc_class_ops imx_sc_rtc_ops = {
.read_time = imx_sc_rtc_read_time,
.set_time = imx_sc_rtc_set_time,
- .read_alarm = imx_sc_rtc_read_alarm,
.set_alarm = imx_sc_rtc_set_alarm,
.alarm_irq_enable = imx_sc_rtc_alarm_irq_enable,
};
diff --git a/drivers/rtc/rtc-imxdi.c b/drivers/rtc/rtc-imxdi.c
index c2692da74e09..c1806f4d68e7 100644
--- a/drivers/rtc/rtc-imxdi.c
+++ b/drivers/rtc/rtc-imxdi.c
@@ -840,19 +840,17 @@ static int __exit dryice_rtc_remove(struct platform_device *pdev)
return 0;
}
-#ifdef CONFIG_OF
static const struct of_device_id dryice_dt_ids[] = {
{ .compatible = "fsl,imx25-rtc" },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, dryice_dt_ids);
-#endif
static struct platform_driver dryice_rtc_driver = {
.driver = {
.name = "imxdi_rtc",
- .of_match_table = of_match_ptr(dryice_dt_ids),
+ .of_match_table = dryice_dt_ids,
},
.remove = __exit_p(dryice_rtc_remove),
};
diff --git a/drivers/rtc/rtc-m48t59.c b/drivers/rtc/rtc-m48t59.c
index 1d2e99a70fce..f0f6b9b6daec 100644
--- a/drivers/rtc/rtc-m48t59.c
+++ b/drivers/rtc/rtc-m48t59.c
@@ -421,7 +421,7 @@ static int m48t59_rtc_probe(struct platform_device *pdev)
/* Try to get irq number. We also can work in
* the mode without IRQ.
*/
- m48t59->irq = platform_get_irq(pdev, 0);
+ m48t59->irq = platform_get_irq_optional(pdev, 0);
if (m48t59->irq <= 0)
m48t59->irq = NO_IRQ;
diff --git a/drivers/rtc/rtc-mxc.c b/drivers/rtc/rtc-mxc.c
index db57dda7ab97..0f08f22df869 100644
--- a/drivers/rtc/rtc-mxc.c
+++ b/drivers/rtc/rtc-mxc.c
@@ -415,7 +415,7 @@ static int mxc_rtc_probe(struct platform_device *pdev)
static struct platform_driver mxc_rtc_driver = {
.driver = {
.name = "mxc_rtc",
- .of_match_table = of_match_ptr(imx_rtc_dt_ids),
+ .of_match_table = imx_rtc_dt_ids,
},
.probe = mxc_rtc_probe,
};
diff --git a/drivers/rtc/rtc-ntxec.c b/drivers/rtc/rtc-ntxec.c
new file mode 100644
index 000000000000..850ca49186fd
--- /dev/null
+++ b/drivers/rtc/rtc-ntxec.c
@@ -0,0 +1,145 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * The Netronix embedded controller is a microcontroller found in some
+ * e-book readers designed by the original design manufacturer Netronix, Inc.
+ * It contains RTC, battery monitoring, system power management, and PWM
+ * functionality.
+ *
+ * This driver implements access to the RTC time and date.
+ *
+ * Copyright 2020 Jonathan Neuschäfer <j.neuschaefer@gmx.net>
+ */
+
+#include <linux/mfd/ntxec.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/rtc.h>
+#include <linux/types.h>
+
+struct ntxec_rtc {
+ struct device *dev;
+ struct ntxec *ec;
+};
+
+#define NTXEC_REG_WRITE_YEAR 0x10
+#define NTXEC_REG_WRITE_MONTH 0x11
+#define NTXEC_REG_WRITE_DAY 0x12
+#define NTXEC_REG_WRITE_HOUR 0x13
+#define NTXEC_REG_WRITE_MINUTE 0x14
+#define NTXEC_REG_WRITE_SECOND 0x15
+
+#define NTXEC_REG_READ_YEAR_MONTH 0x20
+#define NTXEC_REG_READ_MDAY_HOUR 0x21
+#define NTXEC_REG_READ_MINUTE_SECOND 0x23
+
+static int ntxec_read_time(struct device *dev, struct rtc_time *tm)
+{
+ struct ntxec_rtc *rtc = dev_get_drvdata(dev);
+ unsigned int value;
+ int res;
+
+retry:
+ res = regmap_read(rtc->ec->regmap, NTXEC_REG_READ_MINUTE_SECOND, &value);
+ if (res < 0)
+ return res;
+
+ tm->tm_min = value >> 8;
+ tm->tm_sec = value & 0xff;
+
+ res = regmap_read(rtc->ec->regmap, NTXEC_REG_READ_MDAY_HOUR, &value);
+ if (res < 0)
+ return res;
+
+ tm->tm_mday = value >> 8;
+ tm->tm_hour = value & 0xff;
+
+ res = regmap_read(rtc->ec->regmap, NTXEC_REG_READ_YEAR_MONTH, &value);
+ if (res < 0)
+ return res;
+
+ tm->tm_year = (value >> 8) + 100;
+ tm->tm_mon = (value & 0xff) - 1;
+
+ /*
+ * Read the minutes/seconds field again. If it changed since the first
+ * read, we can't assume that the values read so far are consistent,
+ * and should start from the beginning.
+ */
+ res = regmap_read(rtc->ec->regmap, NTXEC_REG_READ_MINUTE_SECOND, &value);
+ if (res < 0)
+ return res;
+
+ if (tm->tm_min != value >> 8 || tm->tm_sec != (value & 0xff))
+ goto retry;
+
+ return 0;
+}
+
+static int ntxec_set_time(struct device *dev, struct rtc_time *tm)
+{
+ struct ntxec_rtc *rtc = dev_get_drvdata(dev);
+
+ /*
+ * To avoid time overflows while we're writing the full date/time,
+ * set the seconds field to zero before doing anything else. For the
+ * next 59 seconds (plus however long it takes until the RTC's next
+ * update of the second field), the seconds field will not overflow
+ * into the other fields.
+ */
+ struct reg_sequence regs[] = {
+ { NTXEC_REG_WRITE_SECOND, ntxec_reg8(0) },
+ { NTXEC_REG_WRITE_YEAR, ntxec_reg8(tm->tm_year - 100) },
+ { NTXEC_REG_WRITE_MONTH, ntxec_reg8(tm->tm_mon + 1) },
+ { NTXEC_REG_WRITE_DAY, ntxec_reg8(tm->tm_mday) },
+ { NTXEC_REG_WRITE_HOUR, ntxec_reg8(tm->tm_hour) },
+ { NTXEC_REG_WRITE_MINUTE, ntxec_reg8(tm->tm_min) },
+ { NTXEC_REG_WRITE_SECOND, ntxec_reg8(tm->tm_sec) },
+ };
+
+ return regmap_multi_reg_write(rtc->ec->regmap, regs, ARRAY_SIZE(regs));
+}
+
+static const struct rtc_class_ops ntxec_rtc_ops = {
+ .read_time = ntxec_read_time,
+ .set_time = ntxec_set_time,
+};
+
+static int ntxec_rtc_probe(struct platform_device *pdev)
+{
+ struct rtc_device *dev;
+ struct ntxec_rtc *rtc;
+
+ pdev->dev.of_node = pdev->dev.parent->of_node;
+
+ rtc = devm_kzalloc(&pdev->dev, sizeof(*rtc), GFP_KERNEL);
+ if (!rtc)
+ return -ENOMEM;
+
+ rtc->dev = &pdev->dev;
+ rtc->ec = dev_get_drvdata(pdev->dev.parent);
+ platform_set_drvdata(pdev, rtc);
+
+ dev = devm_rtc_allocate_device(&pdev->dev);
+ if (IS_ERR(dev))
+ return PTR_ERR(dev);
+
+ dev->ops = &ntxec_rtc_ops;
+ dev->range_min = RTC_TIMESTAMP_BEGIN_2000;
+ dev->range_max = 9025257599LL; /* 2255-12-31 23:59:59 */
+
+ return devm_rtc_register_device(dev);
+}
+
+static struct platform_driver ntxec_rtc_driver = {
+ .driver = {
+ .name = "ntxec-rtc",
+ },
+ .probe = ntxec_rtc_probe,
+};
+module_platform_driver(ntxec_rtc_driver);
+
+MODULE_AUTHOR("Jonathan Neuschäfer <j.neuschaefer@gmx.net>");
+MODULE_DESCRIPTION("RTC driver for Netronix EC");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:ntxec-rtc");
diff --git a/drivers/rtc/rtc-omap.c b/drivers/rtc/rtc-omap.c
index dc7db2477f88..d46e0f0cc502 100644
--- a/drivers/rtc/rtc-omap.c
+++ b/drivers/rtc/rtc-omap.c
@@ -786,8 +786,7 @@ static int omap_rtc_probe(struct platform_device *pdev)
/* enable RTC functional clock */
if (rtc->type->has_32kclk_en) {
reg = rtc_read(rtc, OMAP_RTC_OSC_REG);
- rtc_writel(rtc, OMAP_RTC_OSC_REG,
- reg | OMAP_RTC_OSC_32KCLK_EN);
+ rtc_write(rtc, OMAP_RTC_OSC_REG, reg | OMAP_RTC_OSC_32KCLK_EN);
}
/* clear old status */
@@ -845,7 +844,7 @@ static int omap_rtc_probe(struct platform_device *pdev)
reg = rtc_read(rtc, OMAP_RTC_OSC_REG);
reg &= ~OMAP_RTC_OSC_OSC32K_GZ_DISABLE;
reg |= OMAP_RTC_OSC_32KCLK_EN | OMAP_RTC_OSC_SEL_32KCLK_SRC;
- rtc_writel(rtc, OMAP_RTC_OSC_REG, reg);
+ rtc_write(rtc, OMAP_RTC_OSC_REG, reg);
}
rtc->type->lock(rtc);
diff --git a/drivers/rtc/rtc-pcf85063.c b/drivers/rtc/rtc-pcf85063.c
index aef6c1ee8bb0..82becae14229 100644
--- a/drivers/rtc/rtc-pcf85063.c
+++ b/drivers/rtc/rtc-pcf85063.c
@@ -478,6 +478,7 @@ static struct clk *pcf85063_clkout_register_clk(struct pcf85063 *pcf85063)
{
struct clk *clk;
struct clk_init_data init;
+ struct device_node *node = pcf85063->rtc->dev.parent->of_node;
init.name = "pcf85063-clkout";
init.ops = &pcf85063_clkout_ops;
@@ -487,15 +488,13 @@ static struct clk *pcf85063_clkout_register_clk(struct pcf85063 *pcf85063)
pcf85063->clkout_hw.init = &init;
/* optional override of the clockname */
- of_property_read_string(pcf85063->rtc->dev.of_node,
- "clock-output-names", &init.name);
+ of_property_read_string(node, "clock-output-names", &init.name);
/* register the clock */
clk = devm_clk_register(&pcf85063->rtc->dev, &pcf85063->clkout_hw);
if (!IS_ERR(clk))
- of_clk_add_provider(pcf85063->rtc->dev.of_node,
- of_clk_src_simple_get, clk);
+ of_clk_add_provider(node, of_clk_src_simple_get, clk);
return clk;
}
diff --git a/drivers/rtc/rtc-pcf8523.c b/drivers/rtc/rtc-pcf8523.c
index 5e1e7b2a8c9a..740e2136ca98 100644
--- a/drivers/rtc/rtc-pcf8523.c
+++ b/drivers/rtc/rtc-pcf8523.c
@@ -8,12 +8,15 @@
#include <linux/module.h>
#include <linux/rtc.h>
#include <linux/of.h>
-
-#define DRIVER_NAME "rtc-pcf8523"
+#include <linux/pm_wakeirq.h>
#define REG_CONTROL1 0x00
#define REG_CONTROL1_CAP_SEL BIT(7)
#define REG_CONTROL1_STOP BIT(5)
+#define REG_CONTROL1_AIE BIT(1)
+
+#define REG_CONTROL2 0x01
+#define REG_CONTROL2_AF BIT(3)
#define REG_CONTROL3 0x02
#define REG_CONTROL3_PM_BLD BIT(7) /* battery low detection disabled */
@@ -32,9 +35,22 @@
#define REG_MONTHS 0x08
#define REG_YEARS 0x09
+#define REG_MINUTE_ALARM 0x0a
+#define REG_HOUR_ALARM 0x0b
+#define REG_DAY_ALARM 0x0c
+#define REG_WEEKDAY_ALARM 0x0d
+#define ALARM_DIS BIT(7)
+
#define REG_OFFSET 0x0e
#define REG_OFFSET_MODE BIT(7)
+#define REG_TMR_CLKOUT_CTRL 0x0f
+
+struct pcf8523 {
+ struct rtc_device *rtc;
+ struct i2c_client *client;
+};
+
static int pcf8523_read(struct i2c_client *client, u8 reg, u8 *valuep)
{
struct i2c_msg msgs[2];
@@ -140,6 +156,27 @@ static int pcf8523_set_pm(struct i2c_client *client, u8 pm)
return 0;
}
+static irqreturn_t pcf8523_irq(int irq, void *dev_id)
+{
+ struct pcf8523 *pcf8523 = i2c_get_clientdata(dev_id);
+ u8 value;
+ int err;
+
+ err = pcf8523_read(pcf8523->client, REG_CONTROL2, &value);
+ if (err < 0)
+ return IRQ_HANDLED;
+
+ if (value & REG_CONTROL2_AF) {
+ value &= ~REG_CONTROL2_AF;
+ pcf8523_write(pcf8523->client, REG_CONTROL2, value);
+ rtc_update_irq(pcf8523->rtc, 1, RTC_IRQF | RTC_AF);
+
+ return IRQ_HANDLED;
+ }
+
+ return IRQ_NONE;
+}
+
static int pcf8523_stop_rtc(struct i2c_client *client)
{
u8 value;
@@ -259,11 +296,118 @@ static int pcf8523_rtc_set_time(struct device *dev, struct rtc_time *tm)
return pcf8523_start_rtc(client);
}
+static int pcf8523_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *tm)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ u8 start = REG_MINUTE_ALARM, regs[4];
+ struct i2c_msg msgs[2];
+ u8 value;
+ int err;
+
+ msgs[0].addr = client->addr;
+ msgs[0].flags = 0;
+ msgs[0].len = 1;
+ msgs[0].buf = &start;
+
+ msgs[1].addr = client->addr;
+ msgs[1].flags = I2C_M_RD;
+ msgs[1].len = sizeof(regs);
+ msgs[1].buf = regs;
+
+ err = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
+ if (err < 0)
+ return err;
+
+ tm->time.tm_sec = 0;
+ tm->time.tm_min = bcd2bin(regs[0] & 0x7F);
+ tm->time.tm_hour = bcd2bin(regs[1] & 0x3F);
+ tm->time.tm_mday = bcd2bin(regs[2] & 0x3F);
+ tm->time.tm_wday = bcd2bin(regs[3] & 0x7);
+
+ err = pcf8523_read(client, REG_CONTROL1, &value);
+ if (err < 0)
+ return err;
+ tm->enabled = !!(value & REG_CONTROL1_AIE);
+
+ err = pcf8523_read(client, REG_CONTROL2, &value);
+ if (err < 0)
+ return err;
+ tm->pending = !!(value & REG_CONTROL2_AF);
+
+ return 0;
+}
+
+static int pcf8523_irq_enable(struct device *dev, unsigned int enabled)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ u8 value;
+ int err;
+
+ err = pcf8523_read(client, REG_CONTROL1, &value);
+ if (err < 0)
+ return err;
+
+ value &= REG_CONTROL1_AIE;
+
+ if (enabled)
+ value |= REG_CONTROL1_AIE;
+
+ err = pcf8523_write(client, REG_CONTROL1, value);
+ if (err < 0)
+ return err;
+
+ return 0;
+}
+
+static int pcf8523_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *tm)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct i2c_msg msg;
+ u8 regs[5];
+ int err;
+
+ err = pcf8523_irq_enable(dev, 0);
+ if (err)
+ return err;
+
+ err = pcf8523_write(client, REG_CONTROL2, 0);
+ if (err < 0)
+ return err;
+
+ /* The alarm has no seconds, round up to nearest minute */
+ if (tm->time.tm_sec) {
+ time64_t alarm_time = rtc_tm_to_time64(&tm->time);
+
+ alarm_time += 60 - tm->time.tm_sec;
+ rtc_time64_to_tm(alarm_time, &tm->time);
+ }
+
+ regs[0] = REG_MINUTE_ALARM;
+ regs[1] = bin2bcd(tm->time.tm_min);
+ regs[2] = bin2bcd(tm->time.tm_hour);
+ regs[3] = bin2bcd(tm->time.tm_mday);
+ regs[4] = ALARM_DIS;
+ msg.addr = client->addr;
+ msg.flags = 0;
+ msg.len = sizeof(regs);
+ msg.buf = regs;
+ err = i2c_transfer(client->adapter, &msg, 1);
+ if (err < 0)
+ return err;
+
+ if (tm->enabled)
+ return pcf8523_irq_enable(dev, tm->enabled);
+
+ return 0;
+}
+
#ifdef CONFIG_RTC_INTF_DEV
static int pcf8523_rtc_ioctl(struct device *dev, unsigned int cmd,
unsigned long arg)
{
struct i2c_client *client = to_i2c_client(dev);
+ unsigned int flags = 0;
+ u8 value;
int ret;
switch (cmd) {
@@ -272,9 +416,16 @@ static int pcf8523_rtc_ioctl(struct device *dev, unsigned int cmd,
if (ret < 0)
return ret;
if (ret)
- ret = RTC_VL_BACKUP_LOW;
+ flags |= RTC_VL_BACKUP_LOW;
- return put_user(ret, (unsigned int __user *)arg);
+ ret = pcf8523_read(client, REG_SECONDS, &value);
+ if (ret < 0)
+ return ret;
+
+ if (value & REG_SECONDS_OS)
+ flags |= RTC_VL_DATA_INVALID;
+
+ return put_user(flags, (unsigned int __user *)arg);
default:
return -ENOIOCTLCMD;
@@ -322,6 +473,9 @@ static int pcf8523_rtc_set_offset(struct device *dev, long offset)
static const struct rtc_class_ops pcf8523_rtc_ops = {
.read_time = pcf8523_rtc_read_time,
.set_time = pcf8523_rtc_set_time,
+ .read_alarm = pcf8523_rtc_read_alarm,
+ .set_alarm = pcf8523_rtc_set_alarm,
+ .alarm_irq_enable = pcf8523_irq_enable,
.ioctl = pcf8523_rtc_ioctl,
.read_offset = pcf8523_rtc_read_offset,
.set_offset = pcf8523_rtc_set_offset,
@@ -330,12 +484,21 @@ static const struct rtc_class_ops pcf8523_rtc_ops = {
static int pcf8523_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
+ struct pcf8523 *pcf8523;
struct rtc_device *rtc;
+ bool wakeup_source = false;
int err;
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C))
return -ENODEV;
+ pcf8523 = devm_kzalloc(&client->dev, sizeof(struct pcf8523), GFP_KERNEL);
+ if (!pcf8523)
+ return -ENOMEM;
+
+ i2c_set_clientdata(client, pcf8523);
+ pcf8523->client = client;
+
err = pcf8523_load_capacitance(client);
if (err < 0)
dev_warn(&client->dev, "failed to set xtal load capacitance: %d",
@@ -349,9 +512,32 @@ static int pcf8523_probe(struct i2c_client *client,
if (IS_ERR(rtc))
return PTR_ERR(rtc);
+ pcf8523->rtc = rtc;
rtc->ops = &pcf8523_rtc_ops;
rtc->range_min = RTC_TIMESTAMP_BEGIN_2000;
rtc->range_max = RTC_TIMESTAMP_END_2099;
+ rtc->uie_unsupported = 1;
+
+ if (client->irq > 0) {
+ err = pcf8523_write(client, REG_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,
+ dev_name(&rtc->dev), client);
+ if (err)
+ return err;
+
+ dev_pm_set_wake_irq(&client->dev, client->irq);
+ }
+
+#ifdef CONFIG_OF
+ wakeup_source = of_property_read_bool(client->dev.of_node, "wakeup-source");
+#endif
+ if (client->irq > 0 || wakeup_source)
+ device_init_wakeup(&client->dev, true);
return devm_rtc_register_device(rtc);
}
@@ -373,7 +559,7 @@ MODULE_DEVICE_TABLE(of, pcf8523_of_match);
static struct i2c_driver pcf8523_driver = {
.driver = {
- .name = DRIVER_NAME,
+ .name = "rtc-pcf8523",
.of_match_table = of_match_ptr(pcf8523_of_match),
},
.probe = pcf8523_probe,
diff --git a/drivers/rtc/rtc-pm8xxx.c b/drivers/rtc/rtc-pm8xxx.c
index eb206597a8fa..29a1c65661e9 100644
--- a/drivers/rtc/rtc-pm8xxx.c
+++ b/drivers/rtc/rtc-pm8xxx.c
@@ -445,6 +445,16 @@ static const struct pm8xxx_rtc_regs pm8941_regs = {
.alarm_en = BIT(7),
};
+static const struct pm8xxx_rtc_regs pmk8350_regs = {
+ .ctrl = 0x6146,
+ .write = 0x6140,
+ .read = 0x6148,
+ .alarm_rw = 0x6240,
+ .alarm_ctrl = 0x6246,
+ .alarm_ctrl2 = 0x6248,
+ .alarm_en = BIT(7),
+};
+
/*
* Hardcoded RTC bases until IORESOURCE_REG mapping is figured out
*/
@@ -453,6 +463,7 @@ static const struct of_device_id pm8xxx_id_table[] = {
{ .compatible = "qcom,pm8018-rtc", .data = &pm8921_regs },
{ .compatible = "qcom,pm8058-rtc", .data = &pm8058_regs },
{ .compatible = "qcom,pm8941-rtc", .data = &pm8941_regs },
+ { .compatible = "qcom,pmk8350-rtc", .data = &pmk8350_regs },
{ },
};
MODULE_DEVICE_TABLE(of, pm8xxx_id_table);
diff --git a/drivers/rtc/rtc-rv3028.c b/drivers/rtc/rtc-rv3028.c
index 0c48d980d06a..12c807306893 100644
--- a/drivers/rtc/rtc-rv3028.c
+++ b/drivers/rtc/rtc-rv3028.c
@@ -320,7 +320,7 @@ static int rv3028_get_time(struct device *dev, struct rtc_time *tm)
tm->tm_sec = bcd2bin(date[RV3028_SEC] & 0x7f);
tm->tm_min = bcd2bin(date[RV3028_MIN] & 0x7f);
tm->tm_hour = bcd2bin(date[RV3028_HOUR] & 0x3f);
- tm->tm_wday = ilog2(date[RV3028_WDAY] & 0x7f);
+ tm->tm_wday = date[RV3028_WDAY] & 0x7f;
tm->tm_mday = bcd2bin(date[RV3028_DAY] & 0x3f);
tm->tm_mon = bcd2bin(date[RV3028_MONTH] & 0x1f) - 1;
tm->tm_year = bcd2bin(date[RV3028_YEAR]) + 100;
@@ -337,7 +337,7 @@ static int rv3028_set_time(struct device *dev, struct rtc_time *tm)
date[RV3028_SEC] = bin2bcd(tm->tm_sec);
date[RV3028_MIN] = bin2bcd(tm->tm_min);
date[RV3028_HOUR] = bin2bcd(tm->tm_hour);
- date[RV3028_WDAY] = 1 << (tm->tm_wday);
+ date[RV3028_WDAY] = tm->tm_wday;
date[RV3028_DAY] = bin2bcd(tm->tm_mday);
date[RV3028_MONTH] = bin2bcd(tm->tm_mon + 1);
date[RV3028_YEAR] = bin2bcd(tm->tm_year - 100);
diff --git a/drivers/rtc/rtc-rx6110.c b/drivers/rtc/rtc-rx6110.c
index 79161d4c6ce4..f4d425002f7f 100644
--- a/drivers/rtc/rtc-rx6110.c
+++ b/drivers/rtc/rtc-rx6110.c
@@ -447,6 +447,12 @@ static int rx6110_i2c_probe(struct i2c_client *client,
return rx6110_probe(rx6110, &client->dev);
}
+static const struct acpi_device_id rx6110_i2c_acpi_match[] = {
+ { "SECC6110" },
+ { }
+};
+MODULE_DEVICE_TABLE(acpi, rx6110_i2c_acpi_match);
+
static const struct i2c_device_id rx6110_i2c_id[] = {
{ "rx6110", 0 },
{ }
@@ -456,6 +462,7 @@ MODULE_DEVICE_TABLE(i2c, rx6110_i2c_id);
static struct i2c_driver rx6110_i2c_driver = {
.driver = {
.name = RX6110_DRIVER_NAME,
+ .acpi_match_table = rx6110_i2c_acpi_match,
},
.probe = rx6110_i2c_probe,
.id_table = rx6110_i2c_id,
diff --git a/drivers/rtc/rtc-s5m.c b/drivers/rtc/rtc-s5m.c
index 80b66f16db89..038269a6b08c 100644
--- a/drivers/rtc/rtc-s5m.c
+++ b/drivers/rtc/rtc-s5m.c
@@ -713,16 +713,10 @@ static int s5m8767_rtc_init_reg(struct s5m_rtc_info *info)
static int s5m_rtc_probe(struct platform_device *pdev)
{
struct sec_pmic_dev *s5m87xx = dev_get_drvdata(pdev->dev.parent);
- struct sec_platform_data *pdata = s5m87xx->pdata;
struct s5m_rtc_info *info;
const struct regmap_config *regmap_cfg;
int ret, alarm_irq;
- if (!pdata) {
- dev_err(pdev->dev.parent, "Platform data not supplied\n");
- return -ENODEV;
- }
-
info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
if (!info)
return -ENOMEM;
diff --git a/drivers/rtc/rtc-spear.c b/drivers/rtc/rtc-spear.c
index 833daeb7b60e..ee721e53c155 100644
--- a/drivers/rtc/rtc-spear.c
+++ b/drivers/rtc/rtc-spear.c
@@ -153,12 +153,12 @@ static void rtc_wait_not_busy(struct spear_rtc_config *config)
static irqreturn_t spear_rtc_irq(int irq, void *dev_id)
{
struct spear_rtc_config *config = dev_id;
- unsigned long flags, events = 0;
+ unsigned long events = 0;
unsigned int irq_data;
- spin_lock_irqsave(&config->lock, flags);
+ spin_lock(&config->lock);
irq_data = readl(config->ioaddr + STATUS_REG);
- spin_unlock_irqrestore(&config->lock, flags);
+ spin_unlock(&config->lock);
if ((irq_data & RTC_INT_MASK)) {
spear_rtc_clear_interrupt(config);
diff --git a/drivers/rtc/rtc-tps65910.c b/drivers/rtc/rtc-tps65910.c
index 288abb1abdb8..bc89c62ccb9b 100644
--- a/drivers/rtc/rtc-tps65910.c
+++ b/drivers/rtc/rtc-tps65910.c
@@ -18,6 +18,7 @@
#include <linux/rtc.h>
#include <linux/bcd.h>
#include <linux/math64.h>
+#include <linux/property.h>
#include <linux/platform_device.h>
#include <linux/interrupt.h>
#include <linux/mfd/tps65910.h>
diff --git a/drivers/rtc/sysfs.c b/drivers/rtc/sysfs.c
index 8a957d31a1a4..74026f67fdfb 100644
--- a/drivers/rtc/sysfs.c
+++ b/drivers/rtc/sysfs.c
@@ -273,7 +273,7 @@ static bool rtc_does_wakealarm(struct rtc_device *rtc)
if (!device_can_wakeup(rtc->dev.parent))
return false;
- return rtc->ops->set_alarm != NULL;
+ return !!test_bit(RTC_FEATURE_ALARM, rtc->features);
}
static umode_t rtc_attr_is_visible(struct kobject *kobj,
generated by cgit v1.2.3 (git 2.39.0) at 2025-11-01 02:21:54 +0300