1 files changed, 16 insertions, 13 deletions

diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c
index 47a93c022d91..0d559b6416dd 100644
--- a/drivers/rtc/rtc-ds1307.c
+++ b/drivers/rtc/rtc-ds1307.c
@@ -106,9 +106,9 @@ struct ds1307 {
         struct i2c_client       *client;
         struct rtc_device       *rtc;
         struct work_struct      work;
-        s32 (*read_block_data)(struct i2c_client *client, u8 command,
+        s32 (*read_block_data)(const struct i2c_client *client, u8 command,
                                u8 length, u8 *values);
-        s32 (*write_block_data)(struct i2c_client *client, u8 command,
+        s32 (*write_block_data)(const struct i2c_client *client, u8 command,
                                 u8 length, const u8 *values);
 };
 
@@ -158,8 +158,8 @@ MODULE_DEVICE_TABLE(i2c, ds1307_id);
 
 #define BLOCK_DATA_MAX_TRIES 10
 
-static s32 ds1307_read_block_data_once(struct i2c_client *client, u8 command,
-                                  u8 length, u8 *values)
+static s32 ds1307_read_block_data_once(const struct i2c_client *client,
+                                       u8 command, u8 length, u8 *values)
 {
         s32 i, data;
 
@@ -172,7 +172,7 @@ static s32 ds1307_read_block_data_once(struct i2c_client *client, u8 command,
         return i;
 }
 
-static s32 ds1307_read_block_data(struct i2c_client *client, u8 command,
+static s32 ds1307_read_block_data(const struct i2c_client *client, u8 command,
                                   u8 length, u8 *values)
 {
         u8 oldvalues[I2C_SMBUS_BLOCK_MAX];
@@ -198,7 +198,7 @@ static s32 ds1307_read_block_data(struct i2c_client *client, u8 command,
         return length;
 }
 
-static s32 ds1307_write_block_data(struct i2c_client *client, u8 command,
+static s32 ds1307_write_block_data(const struct i2c_client *client, u8 command,
                                    u8 length, const u8 *values)
 {
         u8 currvalues[I2C_SMBUS_BLOCK_MAX];
@@ -556,7 +556,8 @@ static const struct rtc_class_ops ds13xx_rtc_ops = {
 #define NVRAM_SIZE      56
 
 static ssize_t
-ds1307_nvram_read(struct kobject *kobj, struct bin_attribute *attr,
+ds1307_nvram_read(struct file *filp, struct kobject *kobj,
+                struct bin_attribute *attr,
                 char *buf, loff_t off, size_t count)
 {
         struct i2c_client       *client;
@@ -580,7 +581,8 @@ ds1307_nvram_read(struct kobject *kobj, struct bin_attribute *attr,
 }
 
 static ssize_t
-ds1307_nvram_write(struct kobject *kobj, struct bin_attribute *attr,
+ds1307_nvram_write(struct file *filp, struct kobject *kobj,
+                struct bin_attribute *attr,
                 char *buf, loff_t off, size_t count)
 {
         struct i2c_client       *client;
@@ -775,7 +777,7 @@ static int __devinit ds1307_probe(struct i2c_client *client,
 
 read_rtc:
         /* read RTC registers */
-        tmp = ds1307->read_block_data(ds1307->client, 0, 8, buf);
+        tmp = ds1307->read_block_data(ds1307->client, ds1307->offset, 8, buf);
         if (tmp != 8) {
                 pr_debug("read error %d\n", tmp);
                 err = -EIO;
@@ -860,7 +862,7 @@ read_rtc:
                 if (ds1307->regs[DS1307_REG_HOUR] & DS1307_BIT_PM)
                         tmp += 12;
                 i2c_smbus_write_byte_data(client,
-                                DS1307_REG_HOUR,
+                                ds1307->offset + DS1307_REG_HOUR,
                                 bin2bcd(tmp));
         }
 
@@ -874,13 +876,15 @@ read_rtc:
         }
 
         if (want_irq) {
-                err = request_irq(client->irq, ds1307_irq, 0,
+                err = request_irq(client->irq, ds1307_irq, IRQF_SHARED,
                           ds1307->rtc->name, client);
                 if (err) {
                         dev_err(&client->dev,
                                 "unable to request IRQ!\n");
                         goto exit_irq;
                 }
+
+                device_set_wakeup_capable(&client->dev, 1);
                 set_bit(HAS_ALARM, &ds1307->flags);
                 dev_dbg(&client->dev, "got IRQ %d\n", client->irq);
         }
@@ -896,8 +900,7 @@ read_rtc:
         return 0;
 
 exit_irq:
-        if (ds1307->rtc)
-                rtc_device_unregister(ds1307->rtc);
+        rtc_device_unregister(ds1307->rtc);
 exit_free:
         kfree(ds1307);
         return err;