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authorJean Delvare <khali@linux-fr.org>2009-12-09 14:35:57 -0500
committerJean Delvare <khali@linux-fr.org>2009-12-09 14:35:57 -0500
commit52df6440a29123eed912183fe785bbe174ef14b9 (patch)
tree3a3b9f4110d21c2ec4f5711444dd9cec6fb3d32c /drivers/hwmon/lm93.c
parenta1fa4cdcc4abd4c02a81ab7052c16a342d29f060 (diff)
hwmon: Clean up detect functions
As kind is now hard-coded to -1, there is room for code clean-ups. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Corentin Labbe <corentin.labbe@geomatys.fr> Cc: "Mark M. Hoffman" <mhoffman@lightlink.com> Cc: Juerg Haefliger <juergh@gmail.com> Cc: Riku Voipio <riku.voipio@iki.fi> Acked-by: "Hans J. Koch" <hjk@linutronix.de> Cc: Rudolf Marek <r.marek@assembler.cz>
Diffstat (limited to 'drivers/hwmon/lm93.c')
-rw-r--r--drivers/hwmon/lm93.c32
1 files changed, 11 insertions, 21 deletions
diff --git a/drivers/hwmon/lm93.c b/drivers/hwmon/lm93.c
index fc36cadf36fb..495e7ce6f8a1 100644
--- a/drivers/hwmon/lm93.c
+++ b/drivers/hwmon/lm93.c
@@ -2505,34 +2505,24 @@ static int lm93_detect(struct i2c_client *client, int kind,
2505 struct i2c_board_info *info) 2505 struct i2c_board_info *info)
2506{ 2506{
2507 struct i2c_adapter *adapter = client->adapter; 2507 struct i2c_adapter *adapter = client->adapter;
2508 int mfr, ver;
2508 2509
2509 if (!i2c_check_functionality(adapter, LM93_SMBUS_FUNC_MIN)) 2510 if (!i2c_check_functionality(adapter, LM93_SMBUS_FUNC_MIN))
2510 return -ENODEV; 2511 return -ENODEV;
2511 2512
2512 /* detection */ 2513 /* detection */
2513 if (kind < 0) { 2514 mfr = lm93_read_byte(client, LM93_REG_MFR_ID);
2514 int mfr = lm93_read_byte(client, LM93_REG_MFR_ID); 2515 if (mfr != 0x01) {
2515 2516 dev_dbg(&adapter->dev,
2516 if (mfr != 0x01) { 2517 "detect failed, bad manufacturer id 0x%02x!\n", mfr);
2517 dev_dbg(&adapter->dev,"detect failed, " 2518 return -ENODEV;
2518 "bad manufacturer id 0x%02x!\n", mfr);
2519 return -ENODEV;
2520 }
2521 } 2519 }
2522 2520
2523 if (kind <= 0) { 2521 ver = lm93_read_byte(client, LM93_REG_VER);
2524 int ver = lm93_read_byte(client, LM93_REG_VER); 2522 if (ver != LM93_MFR_ID && ver != LM93_MFR_ID_PROTOTYPE) {
2525 2523 dev_dbg(&adapter->dev,
2526 if ((ver == LM93_MFR_ID) || (ver == LM93_MFR_ID_PROTOTYPE)) { 2524 "detect failed, bad version id 0x%02x!\n", ver);
2527 kind = lm93; 2525 return -ENODEV;
2528 } else {
2529 dev_dbg(&adapter->dev,"detect failed, "
2530 "bad version id 0x%02x!\n", ver);
2531 if (kind == 0)
2532 dev_dbg(&adapter->dev,
2533 "(ignored 'force' parameter)\n");
2534 return -ENODEV;
2535 }
2536 } 2526 }
2537 2527
2538 strlcpy(info->type, "lm93", I2C_NAME_SIZE); 2528 strlcpy(info->type, "lm93", I2C_NAME_SIZE);