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path: root/drivers/rtc/rtc-s5m.c
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Diffstat (limited to 'drivers/rtc/rtc-s5m.c')
-rw-r--r--drivers/rtc/rtc-s5m.c94
1 files changed, 28 insertions, 66 deletions
diff --git a/drivers/rtc/rtc-s5m.c b/drivers/rtc/rtc-s5m.c
index 89ac1d5083c6..8c70d785ba73 100644
--- a/drivers/rtc/rtc-s5m.c
+++ b/drivers/rtc/rtc-s5m.c
@@ -15,6 +15,8 @@
* GNU General Public License for more details.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/i2c.h>
#include <linux/bcd.h>
@@ -48,8 +50,6 @@ struct s5m_rtc_reg_config {
unsigned int alarm0;
/* First register for alarm 1, seconds */
unsigned int alarm1;
- /* SMPL/WTSR register */
- unsigned int smpl_wtsr;
/*
* Register for update flag (UDR). Typically setting UDR field to 1
* will enable update of time or alarm register. Then it will be
@@ -67,7 +67,6 @@ static const struct s5m_rtc_reg_config s5m_rtc_regs = {
.ctrl = S5M_ALARM1_CONF,
.alarm0 = S5M_ALARM0_SEC,
.alarm1 = S5M_ALARM1_SEC,
- .smpl_wtsr = S5M_WTSR_SMPL_CNTL,
.rtc_udr_update = S5M_RTC_UDR_CON,
.rtc_udr_mask = S5M_RTC_UDR_MASK,
};
@@ -82,7 +81,6 @@ static const struct s5m_rtc_reg_config s2mps_rtc_regs = {
.ctrl = S2MPS_RTC_CTRL,
.alarm0 = S2MPS_ALARM0_SEC,
.alarm1 = S2MPS_ALARM1_SEC,
- .smpl_wtsr = S2MPS_WTSR_SMPL_CNTL,
.rtc_udr_update = S2MPS_RTC_UDR_CON,
.rtc_udr_mask = S2MPS_RTC_WUDR_MASK,
};
@@ -94,9 +92,8 @@ struct s5m_rtc_info {
struct regmap *regmap;
struct rtc_device *rtc_dev;
int irq;
- int device_type;
+ enum sec_device_type device_type;
int rtc_24hr_mode;
- bool wtsr_smpl;
const struct s5m_rtc_reg_config *regs;
};
@@ -151,7 +148,7 @@ static int s5m8767_tm_to_data(struct rtc_time *tm, u8 *data)
data[RTC_YEAR1] = tm->tm_year > 100 ? (tm->tm_year - 100) : 0;
if (tm->tm_year < 100) {
- pr_err("s5m8767 RTC cannot handle the year %d.\n",
+ pr_err("RTC cannot handle the year %d\n",
1900 + tm->tm_year);
return -EINVAL;
} else {
@@ -192,6 +189,7 @@ static inline int s5m_check_peding_alarm_interrupt(struct s5m_rtc_info *info,
val &= S5M_ALARM0_STATUS;
break;
case S2MPS14X:
+ case S2MPS13X:
ret = regmap_read(info->s5m87xx->regmap_pmic, S2MPS14_REG_ST2,
&val);
val &= S2MPS_ALARM0_STATUS;
@@ -257,6 +255,9 @@ static inline int s5m8767_rtc_set_alarm_reg(struct s5m_rtc_info *info)
case S2MPS14X:
data |= S2MPS_RTC_RUDR_MASK;
break;
+ case S2MPS13X:
+ data |= S2MPS13_RTC_AUDR_MASK;
+ break;
default:
return -EINVAL;
}
@@ -270,6 +271,11 @@ static inline int s5m8767_rtc_set_alarm_reg(struct s5m_rtc_info *info)
ret = s5m8767_wait_for_udr_update(info);
+ /* On S2MPS13 the AUDR is not auto-cleared */
+ if (info->device_type == S2MPS13X)
+ regmap_update_bits(info->regmap, info->regs->rtc_udr_update,
+ S2MPS13_RTC_AUDR_MASK, 0);
+
return ret;
}
@@ -311,7 +317,7 @@ static int s5m_rtc_read_time(struct device *dev, struct rtc_time *tm)
u8 data[info->regs->regs_count];
int ret;
- if (info->device_type == S2MPS14X) {
+ if (info->device_type == S2MPS14X || info->device_type == S2MPS13X) {
ret = regmap_update_bits(info->regmap,
info->regs->rtc_udr_update,
S2MPS_RTC_RUDR_MASK, S2MPS_RTC_RUDR_MASK);
@@ -334,6 +340,7 @@ static int s5m_rtc_read_time(struct device *dev, struct rtc_time *tm)
case S5M8767X:
case S2MPS14X:
+ case S2MPS13X:
s5m8767_data_to_tm(data, tm, info->rtc_24hr_mode);
break;
@@ -360,6 +367,7 @@ static int s5m_rtc_set_time(struct device *dev, struct rtc_time *tm)
break;
case S5M8767X:
case S2MPS14X:
+ case S2MPS13X:
ret = s5m8767_tm_to_data(tm, data);
break;
default:
@@ -407,6 +415,7 @@ static int s5m_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
case S5M8767X:
case S2MPS14X:
+ case S2MPS13X:
s5m8767_data_to_tm(data, &alrm->time, info->rtc_24hr_mode);
alrm->enabled = 0;
for (i = 0; i < info->regs->regs_count; i++) {
@@ -455,6 +464,7 @@ static int s5m_rtc_stop_alarm(struct s5m_rtc_info *info)
case S5M8767X:
case S2MPS14X:
+ case S2MPS13X:
for (i = 0; i < info->regs->regs_count; i++)
data[i] &= ~ALARM_ENABLE_MASK;
@@ -499,6 +509,7 @@ static int s5m_rtc_start_alarm(struct s5m_rtc_info *info)
case S5M8767X:
case S2MPS14X:
+ case S2MPS13X:
data[RTC_SEC] |= ALARM_ENABLE_MASK;
data[RTC_MIN] |= ALARM_ENABLE_MASK;
data[RTC_HOUR] |= ALARM_ENABLE_MASK;
@@ -538,6 +549,7 @@ static int s5m_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
case S5M8767X:
case S2MPS14X:
+ case S2MPS13X:
s5m8767_tm_to_data(&alrm->time, data);
break;
@@ -597,28 +609,6 @@ static const struct rtc_class_ops s5m_rtc_ops = {
.alarm_irq_enable = s5m_rtc_alarm_irq_enable,
};
-static void s5m_rtc_enable_wtsr(struct s5m_rtc_info *info, bool enable)
-{
- int ret;
- ret = regmap_update_bits(info->regmap, info->regs->smpl_wtsr,
- WTSR_ENABLE_MASK,
- enable ? WTSR_ENABLE_MASK : 0);
- if (ret < 0)
- dev_err(info->dev, "%s: fail to update WTSR reg(%d)\n",
- __func__, ret);
-}
-
-static void s5m_rtc_enable_smpl(struct s5m_rtc_info *info, bool enable)
-{
- int ret;
- ret = regmap_update_bits(info->regmap, info->regs->smpl_wtsr,
- SMPL_ENABLE_MASK,
- enable ? SMPL_ENABLE_MASK : 0);
- if (ret < 0)
- dev_err(info->dev, "%s: fail to update SMPL reg(%d)\n",
- __func__, ret);
-}
-
static int s5m8767_rtc_init_reg(struct s5m_rtc_info *info)
{
u8 data[2];
@@ -642,6 +632,7 @@ static int s5m8767_rtc_init_reg(struct s5m_rtc_info *info)
break;
case S2MPS14X:
+ case S2MPS13X:
data[0] = (0 << BCD_EN_SHIFT) | (1 << MODEL24_SHIFT);
ret = regmap_write(info->regmap, info->regs->ctrl, data[0]);
break;
@@ -677,8 +668,9 @@ static int s5m_rtc_probe(struct platform_device *pdev)
if (!info)
return -ENOMEM;
- switch (pdata->device_type) {
+ switch (platform_get_device_id(pdev)->driver_data) {
case S2MPS14X:
+ case S2MPS13X:
regmap_cfg = &s2mps14_rtc_regmap_config;
info->regs = &s2mps_rtc_regs;
alarm_irq = S2MPS14_IRQ_RTCA0;
@@ -694,7 +686,9 @@ static int s5m_rtc_probe(struct platform_device *pdev)
alarm_irq = S5M8767_IRQ_RTCA1;
break;
default:
- dev_err(&pdev->dev, "Device type is not supported by RTC driver\n");
+ dev_err(&pdev->dev,
+ "Device type %lu is not supported by RTC driver\n",
+ platform_get_device_id(pdev)->driver_data);
return -ENODEV;
}
@@ -714,8 +708,7 @@ static int s5m_rtc_probe(struct platform_device *pdev)
info->dev = &pdev->dev;
info->s5m87xx = s5m87xx;
- info->device_type = s5m87xx->device_type;
- info->wtsr_smpl = s5m87xx->wtsr_smpl;
+ info->device_type = platform_get_device_id(pdev)->driver_data;
if (s5m87xx->irq_data) {
info->irq = regmap_irq_get_virq(s5m87xx->irq_data, alarm_irq);
@@ -731,11 +724,6 @@ static int s5m_rtc_probe(struct platform_device *pdev)
ret = s5m8767_rtc_init_reg(info);
- if (info->wtsr_smpl) {
- s5m_rtc_enable_wtsr(info, true);
- s5m_rtc_enable_smpl(info, true);
- }
-
device_init_wakeup(&pdev->dev, 1);
info->rtc_dev = devm_rtc_device_register(&pdev->dev, "s5m-rtc",
@@ -768,36 +756,10 @@ err:
return ret;
}
-static void s5m_rtc_shutdown(struct platform_device *pdev)
-{
- struct s5m_rtc_info *info = platform_get_drvdata(pdev);
- int i;
- unsigned int val = 0;
- if (info->wtsr_smpl) {
- for (i = 0; i < 3; i++) {
- s5m_rtc_enable_wtsr(info, false);
- regmap_read(info->regmap, info->regs->smpl_wtsr, &val);
- pr_debug("%s: WTSR_SMPL reg(0x%02x)\n", __func__, val);
- if (val & WTSR_ENABLE_MASK)
- pr_emerg("%s: fail to disable WTSR\n",
- __func__);
- else {
- pr_info("%s: success to disable WTSR\n",
- __func__);
- break;
- }
- }
- }
- /* Disable SMPL when power off */
- s5m_rtc_enable_smpl(info, false);
-}
-
static int s5m_rtc_remove(struct platform_device *pdev)
{
struct s5m_rtc_info *info = platform_get_drvdata(pdev);
- /* Perform also all shutdown steps when removing */
- s5m_rtc_shutdown(pdev);
i2c_unregister_device(info->i2c);
return 0;
@@ -831,6 +793,7 @@ static SIMPLE_DEV_PM_OPS(s5m_rtc_pm_ops, s5m_rtc_suspend, s5m_rtc_resume);
static const struct platform_device_id s5m_rtc_id[] = {
{ "s5m-rtc", S5M8767X },
+ { "s2mps13-rtc", S2MPS13X },
{ "s2mps14-rtc", S2MPS14X },
{ },
};
@@ -842,7 +805,6 @@ static struct platform_driver s5m_rtc_driver = {
},
.probe = s5m_rtc_probe,
.remove = s5m_rtc_remove,
- .shutdown = s5m_rtc_shutdown,
.id_table = s5m_rtc_id,
};
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.