rtc: ds1343: remove undocumented and useless sysfs files

A documented ABI already exists to get information about the alarm. It is
the only one that is used.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

diff --git a/drivers/rtc/rtc-ds1343.c b/drivers/rtc/rtc-ds1343.c
index a5a5a36..67cae0d 100644 (file)
--- a/drivers/rtc/rtc-ds1343.c
+++ b/drivers/rtc/rtc-ds1343.c
@@ -199,74 +199,6 @@ static struct bin_attribute nvram_attr = {
        .size           = DS1343_NVRAM_LEN,
 };
 
-static ssize_t ds1343_show_alarmstatus(struct device *dev,
-                               struct device_attribute *attr, char *buf)
-{
-       struct ds1343_priv *priv = dev_get_drvdata(dev);
-       int alarmstatus, data;
-
-       regmap_read(priv->map, DS1343_CONTROL_REG, &data);
-
-       alarmstatus = !!(data & DS1343_A0IE);
-
-       if (alarmstatus)
-               return sprintf(buf, "enabled\n");
-       else
-               return sprintf(buf, "disabled\n");
-}
-
-static DEVICE_ATTR(alarm_status, S_IRUGO, ds1343_show_alarmstatus, NULL);
-
-static ssize_t ds1343_show_alarmmode(struct device *dev,
-                               struct device_attribute *attr, char *buf)
-{
-       struct ds1343_priv *priv = dev_get_drvdata(dev);
-       int alarm_mode, data;
-       char *alarm_str;
-
-       regmap_read(priv->map, DS1343_ALM0_SEC_REG, &data);
-       alarm_mode = (data & 0x80) >> 4;
-
-       regmap_read(priv->map, DS1343_ALM0_MIN_REG, &data);
-       alarm_mode |= (data & 0x80) >> 5;
-
-       regmap_read(priv->map, DS1343_ALM0_HOUR_REG, &data);
-       alarm_mode |= (data & 0x80) >> 6;
-
-       regmap_read(priv->map, DS1343_ALM0_DAY_REG, &data);
-       alarm_mode |= (data & 0x80) >> 7;
-
-       switch (alarm_mode) {
-       case 15:
-               alarm_str = "each second";
-               break;
-
-       case 7:
-               alarm_str = "seconds match";
-               break;
-
-       case 3:
-               alarm_str = "minutes and seconds match";
-               break;
-
-       case 1:
-               alarm_str = "hours, minutes and seconds match";
-               break;
-
-       case 0:
-               alarm_str = "day, hours, minutes and seconds match";
-               break;
-
-       default:
-               alarm_str = "invalid";
-               break;
-       }
-
-       return sprintf(buf, "%s\n", alarm_str);
-}
-
-static DEVICE_ATTR(alarm_mode, S_IRUGO, ds1343_show_alarmmode, NULL);
-
 static ssize_t ds1343_show_tricklecharger(struct device *dev,
                                struct device_attribute *attr, char *buf)
 {
@@ -313,7 +245,6 @@ static DEVICE_ATTR(trickle_charger, S_IRUGO, ds1343_show_tricklecharger, NULL);
 
 static int ds1343_sysfs_register(struct device *dev)
 {
-       struct ds1343_priv *priv = dev_get_drvdata(dev);
        int err;
 
        err = device_create_file(dev, &dev_attr_glitch_filter);
@@ -325,26 +256,9 @@ static int ds1343_sysfs_register(struct device *dev)
                goto error1;
 
        err = device_create_bin_file(dev, &nvram_attr);
-       if (err)
-               goto error2;
-
-       if (priv->irq <= 0)
-               return err;
-
-       err = device_create_file(dev, &dev_attr_alarm_mode);
-       if (err)
-               goto error3;
-
-       err = device_create_file(dev, &dev_attr_alarm_status);
        if (!err)
-               return err;
-
-       device_remove_file(dev, &dev_attr_alarm_mode);
-
-error3:
-       device_remove_bin_file(dev, &nvram_attr);
+               return 0;
 
-error2:
        device_remove_file(dev, &dev_attr_trickle_charger);
 
 error1:
@@ -355,17 +269,9 @@ error1:
 
 static void ds1343_sysfs_unregister(struct device *dev)
 {
-       struct ds1343_priv *priv = dev_get_drvdata(dev);
-
        device_remove_file(dev, &dev_attr_glitch_filter);
        device_remove_file(dev, &dev_attr_trickle_charger);
        device_remove_bin_file(dev, &nvram_attr);
-
-       if (priv->irq <= 0)
-               return;
-
-       device_remove_file(dev, &dev_attr_alarm_status);
-       device_remove_file(dev, &dev_attr_alarm_mode);
 }
 
 static int ds1343_read_time(struct device *dev, struct rtc_time *dt)