diff options
| author | Joakim Tjernlund <Joakim.Tjernlund@transmode.se> | 2009-06-18 03:26:08 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-19 00:03:43 +0400 |
| commit | 33df2ee1bb59b8cd14e3a375d826a40de21f388c (patch) | |
| tree | 942037f5f217a92b4c384d3d28b464edf1fdc8f5 /drivers/rtc | |
| parent | 3a72970054e72e6d3b5cdb7364a079f8ecae62af (diff) | |
| download | linux-33df2ee1bb59b8cd14e3a375d826a40de21f388c.tar.xz | |
rtc: rtc-ds1307 add ds1388
Extend the ds1307 driver to support ds1388 too.
Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/rtc')
| -rw-r--r-- | drivers/rtc/rtc-ds1307.c | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c index 2c4a65302a9d..52e2427e5a95 100644 --- a/drivers/rtc/rtc-ds1307.c +++ b/drivers/rtc/rtc-ds1307.c @@ -31,6 +31,7 @@ enum ds_type { ds_1338, ds_1339, ds_1340, + ds_1388, m41t00, rx_8025, // rs5c372 too? different address... @@ -94,6 +95,7 @@ enum ds_type { struct ds1307 { + u8 offset; /* register's offset */ u8 regs[11]; enum ds_type type; unsigned long flags; @@ -138,6 +140,7 @@ static const struct i2c_device_id ds1307_id[] = { { "ds1337", ds_1337 }, { "ds1338", ds_1338 }, { "ds1339", ds_1339 }, + { "ds1388", ds_1388 }, { "ds1340", ds_1340 }, { "m41t00", m41t00 }, { "rx8025", rx_8025 }, @@ -291,7 +294,7 @@ static int ds1307_get_time(struct device *dev, struct rtc_time *t) /* read the RTC date and time registers all at once */ tmp = ds1307->read_block_data(ds1307->client, - DS1307_REG_SECS, 7, ds1307->regs); + ds1307->offset, 7, ds1307->regs); if (tmp != 7) { dev_err(dev, "%s error %d\n", "read", tmp); return -EIO; @@ -367,7 +370,8 @@ static int ds1307_set_time(struct device *dev, struct rtc_time *t) "write", buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], buf[6]); - result = ds1307->write_block_data(ds1307->client, 0, 7, buf); + result = ds1307->write_block_data(ds1307->client, + ds1307->offset, 7, buf); if (result < 0) { dev_err(dev, "%s error %d\n", "write", result); return result; @@ -632,9 +636,12 @@ static int __devinit ds1307_probe(struct i2c_client *client, if (!(ds1307 = kzalloc(sizeof(struct ds1307), GFP_KERNEL))) return -ENOMEM; - ds1307->client = client; i2c_set_clientdata(client, ds1307); - ds1307->type = id->driver_data; + + ds1307->client = client; + ds1307->type = id->driver_data; + ds1307->offset = 0; + buf = ds1307->regs; if (i2c_check_functionality(adapter, I2C_FUNC_SMBUS_I2C_BLOCK)) { ds1307->read_block_data = i2c_smbus_read_i2c_block_data; @@ -751,6 +758,9 @@ static int __devinit ds1307_probe(struct i2c_client *client, hour); } break; + case ds_1388: + ds1307->offset = 1; /* Seconds starts at 1 */ + break; default: break; } @@ -814,6 +824,7 @@ read_rtc: case rx_8025: case ds_1337: case ds_1339: + case ds_1388: break; } |