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hwmon: (lm90) Add explicit support for max6659 

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
This commit is contained in:
Guenter Roeck 2010-10-28 20:31:43 +02:00 committed by Jean Delvare
parent 96512861c3
commit 13c84951a3
2 changed files with 23 additions and 13 deletions
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4
Documentation/hwmon/lm90
View File

@ -63,8 +63,8 @@ Supported chips:
Datasheet: Publicly available at the Maxim website Datasheet: Publicly available at the Maxim website
http://www.maxim-ic.com/quick_view2.cfm/qv_pk/2578 http://www.maxim-ic.com/quick_view2.cfm/qv_pk/2578
* Maxim MAX6659 * Maxim MAX6659
Prefix: 'max6657' Prefix: 'max6659'
Addresses scanned: I2C 0x4c, 0x4d (unsupported 0x4e) Addresses scanned: I2C 0x4c, 0x4d, 0x4e
Datasheet: Publicly available at the Maxim website Datasheet: Publicly available at the Maxim website
http://www.maxim-ic.com/quick_view2.cfm/qv_pk/2578 http://www.maxim-ic.com/quick_view2.cfm/qv_pk/2578
* Maxim MAX6680 * Maxim MAX6680

32
drivers/hwmon/lm90.c
View File

@ -85,7 +85,7 @@
* and MAX6658 have address 0x4c. * and MAX6658 have address 0x4c.
* ADM1032-2, ADT7461-2, LM89-1, LM99-1 and MAX6646 have address 0x4d. * ADM1032-2, ADT7461-2, LM89-1, LM99-1 and MAX6646 have address 0x4d.
* MAX6647 has address 0x4e. * MAX6647 has address 0x4e.
* MAX6659 can have address 0x4c, 0x4d or 0x4e (unsupported). * MAX6659 can have address 0x4c, 0x4d or 0x4e.
* MAX6680 and MAX6681 can have address 0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b, * MAX6680 and MAX6681 can have address 0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b,
* 0x4c, 0x4d or 0x4e. * 0x4c, 0x4d or 0x4e.
*/ */
@ -93,8 +93,8 @@
static const unsigned short normal_i2c[] = { static const unsigned short normal_i2c[] = {
0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b, 0x4c, 0x4d, 0x4e, I2C_CLIENT_END }; 0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b, 0x4c, 0x4d, 0x4e, I2C_CLIENT_END };
enum chips { lm90, adm1032, lm99, lm86, max6657, adt7461, max6680, max6646, enum chips { lm90, adm1032, lm99, lm86, max6657, max6659, adt7461, max6680,
w83l771 }; max6646, w83l771 };
/* /*
* The LM90 registers * The LM90 registers
@ -176,7 +176,7 @@ static const struct i2c_device_id lm90_id[] = {
{ "max6649", max6646 }, { "max6649", max6646 },
{ "max6657", max6657 }, { "max6657", max6657 },
{ "max6658", max6657 }, { "max6658", max6657 },
{ "max6659", max6657 }, { "max6659", max6659 },
{ "max6680", max6680 }, { "max6680", max6680 },
{ "max6681", max6680 }, { "max6681", max6680 },
{ "w83l771", w83l771 }, { "w83l771", w83l771 },
@ -220,7 +220,7 @@ struct lm90_data {
s16 temp11[5]; /* 0: remote input s16 temp11[5]; /* 0: remote input
1: remote low limit 1: remote low limit
2: remote high limit 2: remote high limit
3: remote offset (except max6646 and max6657) 3: remote offset (except max6646 and max6657/58/59)
4: local input */ 4: local input */
u8 temp_hyst; u8 temp_hyst;
u8 alarms; /* bitvector */ u8 alarms; /* bitvector */
@ -766,12 +766,20 @@ static int lm90_detect(struct i2c_client *new_client,
* register. Likewise, the config1 register seems to lack a * register. Likewise, the config1 register seems to lack a
* low nibble, so the value will be those of the previous * low nibble, so the value will be those of the previous
* read, so in our case those of the man_id register. * read, so in our case those of the man_id register.
* MAX6659 has a third set of upper temperature limit registers.
* Those registers also return values on MAX6657 and MAX6658,
* thus the only way to detect MAX6659 is by its address.
* For this reason it will be mis-detected as MAX6657 if its
* address is 0x4C.
*/ */
if (chip_id == man_id if (chip_id == man_id
&& (address == 0x4C || address == 0x4D) && (address == 0x4C || address == 0x4D || address == 0x4E)
&& (reg_config1 & 0x1F) == (man_id & 0x0F) && (reg_config1 & 0x1F) == (man_id & 0x0F)
&& reg_convrate <= 0x09) { && reg_convrate <= 0x09) {
name = "max6657"; if (address == 0x4C)
name = "max6657";
else
name = "max6659";
} else } else
/* /*
* The chip_id register of the MAX6680 and MAX6681 holds the * The chip_id register of the MAX6680 and MAX6681 holds the
@ -861,14 +869,16 @@ static int lm90_probe(struct i2c_client *new_client,
} }
/* Set chip capabilities */ /* Set chip capabilities */
if (data->kind != max6657 && data->kind != max6646) if (data->kind != max6657 && data->kind != max6659
&& data->kind != max6646)
data->flags |= LM90_HAVE_OFFSET; data->flags |= LM90_HAVE_OFFSET;
if (data->kind == max6657 || data->kind == max6646) if (data->kind == max6657 || data->kind == max6659
|| data->kind == max6646)
data->flags |= LM90_HAVE_LOCAL_EXT; data->flags |= LM90_HAVE_LOCAL_EXT;
if (data->kind != max6657 && data->kind != max6646 if (data->kind != max6657 && data->kind != max6659
&& data->kind != max6680) && data->kind != max6646 && data->kind != max6680)
data->flags |= LM90_HAVE_REM_LIMIT_EXT; data->flags |= LM90_HAVE_REM_LIMIT_EXT;
/* Initialize the LM90 chip */ /* Initialize the LM90 chip */