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authorMauro Carvalho Chehab <mchehab@redhat.com>2011-09-17 15:29:49 +0200
committerMauro Carvalho Chehab <mchehab@redhat.com>2011-09-17 15:29:49 +0200
commit7577911244c437f4a4abac5e4b67b059c06dbe9d (patch)
tree4f0078ddacff226e26b03fa4f6cf185d48633124 /drivers/hwmon/lm95241.c
parent[media] mt9p031: Aptina (Micron) MT9P031 5MP sensor driver (diff)
parentLinux 3.1-rc6 (diff)
downloadlinux-7577911244c437f4a4abac5e4b67b059c06dbe9d.tar.xz
linux-7577911244c437f4a4abac5e4b67b059c06dbe9d.zip
Merge tag 'v3.1-rc6' into staging/for_v3.2
* tag 'v3.1-rc6': (1902 commits) Linux 3.1-rc6 ioctl: register LTTng ioctl fuse: fix memory leak fuse: fix flock breakage Btrfs: add dummy extent if dst offset excceeds file end in Btrfs: calc file extent num_bytes correctly in file clone btrfs: xattr: fix attribute removal Btrfs: fix wrong nbytes information of the inode Btrfs: fix the file extent gap when doing direct IO Btrfs: fix unclosed transaction handle in btrfs_cont_expand Btrfs: fix misuse of trans block rsv Btrfs: reset to appropriate block rsv after orphan operations Btrfs: skip locking if searching the commit root in csum lookup btrfs: fix warning in iput for bad-inode Btrfs: fix an oops when deleting snapshots [media] vp7045: fix buffer setup [media] nuvoton-cir: simplify raw IR sample handling [media] [Resend] viacam: Don't explode if pci_find_bus() returns NULL [media] v4l2: Fix documentation of the codec device controls [media] gspca - sonixj: Fix the darkness of sensor om6802 in 320x240 ...
Diffstat (limited to 'drivers/hwmon/lm95241.c')
-rw-r--r--drivers/hwmon/lm95241.c31
1 files changed, 19 insertions, 12 deletions
diff --git a/drivers/hwmon/lm95241.c b/drivers/hwmon/lm95241.c
index d3b464b74ced..513901d592a9 100644
--- a/drivers/hwmon/lm95241.c
+++ b/drivers/hwmon/lm95241.c
@@ -74,8 +74,9 @@ static const unsigned short normal_i2c[] = {
#define TT_OFF 0
#define TT_ON 1
#define TT_MASK 7
-#define MANUFACTURER_ID 0x01
-#define DEFAULT_REVISION 0xA4
+#define NATSEMI_MAN_ID 0x01
+#define LM95231_CHIP_ID 0xA1
+#define LM95241_CHIP_ID 0xA4
static const u8 lm95241_reg_address[] = {
LM95241_REG_R_LOCAL_TEMPH,
@@ -338,20 +339,25 @@ static int lm95241_detect(struct i2c_client *new_client,
struct i2c_board_info *info)
{
struct i2c_adapter *adapter = new_client->adapter;
- int address = new_client->addr;
const char *name;
+ int mfg_id, chip_id;
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
return -ENODEV;
- if ((i2c_smbus_read_byte_data(new_client, LM95241_REG_R_MAN_ID)
- == MANUFACTURER_ID)
- && (i2c_smbus_read_byte_data(new_client, LM95241_REG_R_CHIP_ID)
- == DEFAULT_REVISION)) {
- name = DEVNAME;
- } else {
- dev_dbg(&adapter->dev, "LM95241 detection failed at 0x%02x\n",
- address);
+ mfg_id = i2c_smbus_read_byte_data(new_client, LM95241_REG_R_MAN_ID);
+ if (mfg_id != NATSEMI_MAN_ID)
+ return -ENODEV;
+
+ chip_id = i2c_smbus_read_byte_data(new_client, LM95241_REG_R_CHIP_ID);
+ switch (chip_id) {
+ case LM95231_CHIP_ID:
+ name = "lm95231";
+ break;
+ case LM95241_CHIP_ID:
+ name = "lm95241";
+ break;
+ default:
return -ENODEV;
}
@@ -431,7 +437,8 @@ static int lm95241_remove(struct i2c_client *client)
/* Driver data (common to all clients) */
static const struct i2c_device_id lm95241_id[] = {
- { DEVNAME, 0 },
+ { "lm95231", 0 },
+ { "lm95241", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, lm95241_id);