summaryrefslogtreecommitdiffstats
path: root/drivers/rtc/rtc-pcf8583.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/rtc/rtc-pcf8583.c')
-rw-r--r--drivers/rtc/rtc-pcf8583.c24
1 files changed, 7 insertions, 17 deletions
diff --git a/drivers/rtc/rtc-pcf8583.c b/drivers/rtc/rtc-pcf8583.c
index c973ba94c42..8b399700750 100644
--- a/drivers/rtc/rtc-pcf8583.c
+++ b/drivers/rtc/rtc-pcf8583.c
@@ -163,27 +163,17 @@ static int pcf8583_read_mem(struct i2c_client *client, struct rtc_mem *mem)
static int pcf8583_write_mem(struct i2c_client *client, struct rtc_mem *mem)
{
- unsigned char addr[1];
- struct i2c_msg msgs[2] = {
- {
- .addr = client->addr,
- .flags = 0,
- .len = 1,
- .buf = addr,
- }, {
- .addr = client->addr,
- .flags = I2C_M_NOSTART,
- .len = mem->nr,
- .buf = mem->data,
- }
- };
+ unsigned char buf[9];
+ int ret;
- if (mem->loc < 8)
+ if (mem->loc < 8 || mem->nr > 8)
return -EINVAL;
- addr[0] = mem->loc;
+ buf[0] = mem->loc;
+ memcpy(buf + 1, mem->data, mem->nr);
- return i2c_transfer(client->adapter, msgs, 2) == 2 ? 0 : -EIO;
+ ret = i2c_master_send(client, buf, mem->nr + 1);
+ return ret == mem->nr + 1 ? 0 : -EIO;
}
static int pcf8583_rtc_read_time(struct device *dev, struct rtc_time *tm)