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path: root/drivers/rtc/rtc-m41t80.c
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Diffstat (limited to 'drivers/rtc/rtc-m41t80.c')
-rw-r--r--drivers/rtc/rtc-m41t80.c30
1 files changed, 8 insertions, 22 deletions
diff --git a/drivers/rtc/rtc-m41t80.c b/drivers/rtc/rtc-m41t80.c
index 5a8daa358066..69fe664a2228 100644
--- a/drivers/rtc/rtc-m41t80.c
+++ b/drivers/rtc/rtc-m41t80.c
@@ -213,41 +213,27 @@ static int m41t80_rtc_set_time(struct device *dev, struct rtc_time *tm)
213 return m41t80_set_datetime(to_i2c_client(dev), tm); 213 return m41t80_set_datetime(to_i2c_client(dev), tm);
214} 214}
215 215
216#if defined(CONFIG_RTC_INTF_DEV) || defined(CONFIG_RTC_INTF_DEV_MODULE) 216static int m41t80_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled)
217static int
218m41t80_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg)
219{ 217{
220 struct i2c_client *client = to_i2c_client(dev); 218 struct i2c_client *client = to_i2c_client(dev);
221 int rc; 219 int rc;
222 220
223 switch (cmd) {
224 case RTC_AIE_OFF:
225 case RTC_AIE_ON:
226 break;
227 default:
228 return -ENOIOCTLCMD;
229 }
230
231 rc = i2c_smbus_read_byte_data(client, M41T80_REG_ALARM_MON); 221 rc = i2c_smbus_read_byte_data(client, M41T80_REG_ALARM_MON);
232 if (rc < 0) 222 if (rc < 0)
233 goto err; 223 goto err;
234 switch (cmd) { 224
235 case RTC_AIE_OFF: 225 if (enabled)
236 rc &= ~M41T80_ALMON_AFE;
237 break;
238 case RTC_AIE_ON:
239 rc |= M41T80_ALMON_AFE; 226 rc |= M41T80_ALMON_AFE;
240 break; 227 else
241 } 228 rc &= ~M41T80_ALMON_AFE;
229
242 if (i2c_smbus_write_byte_data(client, M41T80_REG_ALARM_MON, rc) < 0) 230 if (i2c_smbus_write_byte_data(client, M41T80_REG_ALARM_MON, rc) < 0)
243 goto err; 231 goto err;
232
244 return 0; 233 return 0;
245err: 234err:
246 return -EIO; 235 return -EIO;
247} 236}
248#else
249#define m41t80_rtc_ioctl NULL
250#endif
251 237
252static int m41t80_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *t) 238static int m41t80_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *t)
253{ 239{
@@ -374,7 +360,7 @@ static struct rtc_class_ops m41t80_rtc_ops = {
374 .read_alarm = m41t80_rtc_read_alarm, 360 .read_alarm = m41t80_rtc_read_alarm,
375 .set_alarm = m41t80_rtc_set_alarm, 361 .set_alarm = m41t80_rtc_set_alarm,
376 .proc = m41t80_rtc_proc, 362 .proc = m41t80_rtc_proc,
377 .ioctl = m41t80_rtc_ioctl, 363 .alarm_irq_enable = m41t80_rtc_alarm_irq_enable,
378}; 364};
379 365
380#if defined(CONFIG_RTC_INTF_SYSFS) || defined(CONFIG_RTC_INTF_SYSFS_MODULE) 366#if defined(CONFIG_RTC_INTF_SYSFS) || defined(CONFIG_RTC_INTF_SYSFS_MODULE)