diff options
Diffstat (limited to 'drivers/rtc/rtc-pcf8583.c')
-rw-r--r-- | drivers/rtc/rtc-pcf8583.c | 24 |
1 files changed, 7 insertions, 17 deletions
diff --git a/drivers/rtc/rtc-pcf8583.c b/drivers/rtc/rtc-pcf8583.c index c973ba94c422..8b3997007506 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) | |||
163 | 163 | ||
164 | static int pcf8583_write_mem(struct i2c_client *client, struct rtc_mem *mem) | 164 | static int pcf8583_write_mem(struct i2c_client *client, struct rtc_mem *mem) |
165 | { | 165 | { |
166 | unsigned char addr[1]; | 166 | unsigned char buf[9]; |
167 | struct i2c_msg msgs[2] = { | 167 | int ret; |
168 | { | ||
169 | .addr = client->addr, | ||
170 | .flags = 0, | ||
171 | .len = 1, | ||
172 | .buf = addr, | ||
173 | }, { | ||
174 | .addr = client->addr, | ||
175 | .flags = I2C_M_NOSTART, | ||
176 | .len = mem->nr, | ||
177 | .buf = mem->data, | ||
178 | } | ||
179 | }; | ||
180 | 168 | ||
181 | if (mem->loc < 8) | 169 | if (mem->loc < 8 || mem->nr > 8) |
182 | return -EINVAL; | 170 | return -EINVAL; |
183 | 171 | ||
184 | addr[0] = mem->loc; | 172 | buf[0] = mem->loc; |
173 | memcpy(buf + 1, mem->data, mem->nr); | ||
185 | 174 | ||
186 | return i2c_transfer(client->adapter, msgs, 2) == 2 ? 0 : -EIO; | 175 | ret = i2c_master_send(client, buf, mem->nr + 1); |
176 | return ret == mem->nr + 1 ? 0 : -EIO; | ||
187 | } | 177 | } |
188 | 178 | ||
189 | static int pcf8583_rtc_read_time(struct device *dev, struct rtc_time *tm) | 179 | static int pcf8583_rtc_read_time(struct device *dev, struct rtc_time *tm) |