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path: root/drivers/rtc/rtc-max77686.c
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Diffstat (limited to 'drivers/rtc/rtc-max77686.c')
-rw-r--r--drivers/rtc/rtc-max77686.c85
1 files changed, 30 insertions, 55 deletions
diff --git a/drivers/rtc/rtc-max77686.c b/drivers/rtc/rtc-max77686.c
index 6b1337f9baf..9efe118a28b 100644
--- a/drivers/rtc/rtc-max77686.c
+++ b/drivers/rtc/rtc-max77686.c
@@ -24,7 +24,7 @@
/* RTC Control Register */
#define BCD_EN_SHIFT 0
-#define BCD_EN_MASK (1 << BCD_EN_SHIFT)
+#define BCD_EN_MASK (1 << BCD_EN_SHIFT)
#define MODEL24_SHIFT 1
#define MODEL24_MASK (1 << MODEL24_SHIFT)
/* RTC Update Register1 */
@@ -33,12 +33,12 @@
#define RTC_RBUDR_SHIFT 4
#define RTC_RBUDR_MASK (1 << RTC_RBUDR_SHIFT)
/* WTSR and SMPL Register */
-#define WTSRT_SHIFT 0
-#define SMPLT_SHIFT 2
+#define WTSRT_SHIFT 0
+#define SMPLT_SHIFT 2
#define WTSR_EN_SHIFT 6
#define SMPL_EN_SHIFT 7
-#define WTSRT_MASK (3 << WTSRT_SHIFT)
-#define SMPLT_MASK (3 << SMPLT_SHIFT)
+#define WTSRT_MASK (3 << WTSRT_SHIFT)
+#define SMPLT_MASK (3 << SMPLT_SHIFT)
#define WTSR_EN_MASK (1 << WTSR_EN_SHIFT)
#define SMPL_EN_MASK (1 << SMPL_EN_SHIFT)
/* RTC Hour register */
@@ -119,7 +119,7 @@ static int max77686_rtc_tm_to_data(struct rtc_time *tm, u8 *data)
data[RTC_WEEKDAY] = 1 << tm->tm_wday;
data[RTC_DATE] = tm->tm_mday;
data[RTC_MONTH] = tm->tm_mon + 1;
- data[RTC_YEAR] = tm->tm_year > 100 ? (tm->tm_year - 100) : 0 ;
+ data[RTC_YEAR] = tm->tm_year > 100 ? (tm->tm_year - 100) : 0;
if (tm->tm_year < 100) {
pr_warn("%s: MAX77686 RTC cannot handle the year %d."
@@ -240,9 +240,9 @@ static int max77686_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
}
alrm->pending = 0;
- ret = regmap_read(info->max77686->regmap, MAX77686_REG_STATUS1, &val);
+ ret = regmap_read(info->max77686->regmap, MAX77686_REG_STATUS2, &val);
if (ret < 0) {
- dev_err(info->dev, "%s:%d fail to read status1 reg(%d)\n",
+ dev_err(info->dev, "%s:%d fail to read status2 reg(%d)\n",
__func__, __LINE__, ret);
goto out;
}
@@ -466,7 +466,7 @@ static void max77686_rtc_enable_smpl(struct max77686_rtc_info *info, bool enable
val = 0;
regmap_read(info->max77686->rtc_regmap, MAX77686_WTSR_SMPL_CNTL, &val);
- pr_info("%s: WTSR_SMPL(0x%02x)\n", __func__, val);
+ dev_info(info->dev, "%s: WTSR_SMPL(0x%02x)\n", __func__, val);
}
#endif /* MAX77686_RTC_WTSR_SMPL */
@@ -505,7 +505,8 @@ static int max77686_rtc_probe(struct platform_device *pdev)
dev_info(&pdev->dev, "%s\n", __func__);
- info = kzalloc(sizeof(struct max77686_rtc_info), GFP_KERNEL);
+ info = devm_kzalloc(&pdev->dev, sizeof(struct max77686_rtc_info),
+ GFP_KERNEL);
if (!info)
return -ENOMEM;
@@ -513,13 +514,12 @@ static int max77686_rtc_probe(struct platform_device *pdev)
info->dev = &pdev->dev;
info->max77686 = max77686;
info->rtc = max77686->rtc;
- info->max77686->rtc_regmap = regmap_init_i2c(info->max77686->rtc,
+ info->max77686->rtc_regmap = devm_regmap_init_i2c(info->max77686->rtc,
&max77686_rtc_regmap_config);
if (IS_ERR(info->max77686->rtc_regmap)) {
ret = PTR_ERR(info->max77686->rtc_regmap);
dev_err(info->max77686->dev, "Failed to allocate register map: %d\n",
ret);
- kfree(info);
return ret;
}
platform_set_drvdata(pdev, info);
@@ -538,8 +538,8 @@ static int max77686_rtc_probe(struct platform_device *pdev)
device_init_wakeup(&pdev->dev, 1);
- info->rtc_dev = rtc_device_register("max77686-rtc", &pdev->dev,
- &max77686_rtc_ops, THIS_MODULE);
+ info->rtc_dev = devm_rtc_device_register(&pdev->dev, "max77686-rtc",
+ &max77686_rtc_ops, THIS_MODULE);
if (IS_ERR(info->rtc_dev)) {
dev_info(&pdev->dev, "%s: fail\n", __func__);
@@ -551,37 +551,20 @@ static int max77686_rtc_probe(struct platform_device *pdev)
goto err_rtc;
}
virq = irq_create_mapping(max77686->irq_domain, MAX77686_RTCIRQ_RTCA1);
- if (!virq)
+ if (!virq) {
+ ret = -ENXIO;
goto err_rtc;
+ }
info->virq = virq;
- ret = request_threaded_irq(virq, NULL, max77686_rtc_alarm_irq, 0,
- "rtc-alarm0", info);
- if (ret < 0) {
+ ret = devm_request_threaded_irq(&pdev->dev, virq, NULL,
+ max77686_rtc_alarm_irq, 0, "rtc-alarm0", info);
+ if (ret < 0)
dev_err(&pdev->dev, "Failed to request alarm IRQ: %d: %d\n",
info->virq, ret);
- goto err_rtc;
- }
- goto out;
err_rtc:
- kfree(info);
return ret;
-out:
- return ret;
-}
-
-static int max77686_rtc_remove(struct platform_device *pdev)
-{
- struct max77686_rtc_info *info = platform_get_drvdata(pdev);
-
- if (info) {
- free_irq(info->virq, info);
- rtc_device_unregister(info->rtc_dev);
- kfree(info);
- }
-
- return 0;
}
static void max77686_rtc_shutdown(struct platform_device *pdev)
@@ -594,11 +577,14 @@ static void max77686_rtc_shutdown(struct platform_device *pdev)
for (i = 0; i < 3; i++) {
max77686_rtc_enable_wtsr(info, false);
regmap_read(info->max77686->rtc_regmap, MAX77686_WTSR_SMPL_CNTL, &val);
- pr_info("%s: WTSR_SMPL reg(0x%02x)\n", __func__, val);
- if (val & WTSR_EN_MASK)
- pr_emerg("%s: fail to disable WTSR\n", __func__);
- else {
- pr_info("%s: success to disable WTSR\n", __func__);
+ dev_info(info->dev, "%s: WTSR_SMPL reg(0x%02x)\n", __func__,
+ val);
+ if (val & WTSR_EN_MASK) {
+ dev_emerg(info->dev, "%s: fail to disable WTSR\n",
+ __func__);
+ } else {
+ dev_info(info->dev, "%s: success to disable WTSR\n",
+ __func__);
break;
}
}
@@ -619,23 +605,12 @@ static struct platform_driver max77686_rtc_driver = {
.owner = THIS_MODULE,
},
.probe = max77686_rtc_probe,
- .remove = max77686_rtc_remove,
.shutdown = max77686_rtc_shutdown,
.id_table = rtc_id,
};
-static int __init max77686_rtc_init(void)
-{
- return platform_driver_register(&max77686_rtc_driver);
-}
-module_init(max77686_rtc_init);
-
-static void __exit max77686_rtc_exit(void)
-{
- platform_driver_unregister(&max77686_rtc_driver);
-}
-module_exit(max77686_rtc_exit);
+module_platform_driver(max77686_rtc_driver);
MODULE_DESCRIPTION("Maxim MAX77686 RTC driver");
-MODULE_AUTHOR("<woong.byun@samsung.com>");
+MODULE_AUTHOR("Chiwoong Byun <woong.byun@samsung.com>");
MODULE_LICENSE("GPL");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 05:37:29 +0000