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>
diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c
index e7ef965..68ee8f7 100644
--- a/drivers/hwmon/lm90.c
+++ b/drivers/hwmon/lm90.c
@@ -85,7 +85,7 @@
* and MAX6658 have address 0x4c.
* ADM1032-2, ADT7461-2, LM89-1, LM99-1 and MAX6646 have address 0x4d.
* 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,
* 0x4c, 0x4d or 0x4e.
*/
@@ -93,8 +93,8 @@
static const unsigned short normal_i2c[] = {
0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b, 0x4c, 0x4d, 0x4e, I2C_CLIENT_END };
-enum chips { lm90, adm1032, lm99, lm86, max6657, adt7461, max6680, max6646,
- w83l771 };
+enum chips { lm90, adm1032, lm99, lm86, max6657, max6659, adt7461, max6680,
+ max6646, w83l771 };
/*
* The LM90 registers
@@ -176,7 +176,7 @@
{ "max6649", max6646 },
{ "max6657", max6657 },
{ "max6658", max6657 },
- { "max6659", max6657 },
+ { "max6659", max6659 },
{ "max6680", max6680 },
{ "max6681", max6680 },
{ "w83l771", w83l771 },
@@ -220,7 +220,7 @@
s16 temp11[5]; /* 0: remote input
1: remote low limit
2: remote high limit
- 3: remote offset (except max6646 and max6657)
+ 3: remote offset (except max6646 and max6657/58/59)
4: local input */
u8 temp_hyst;
u8 alarms; /* bitvector */
@@ -766,12 +766,20 @@
* register. Likewise, the config1 register seems to lack a
* low nibble, so the value will be those of the previous
* 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
- && (address == 0x4C || address == 0x4D)
+ && (address == 0x4C || address == 0x4D || address == 0x4E)
&& (reg_config1 & 0x1F) == (man_id & 0x0F)
&& reg_convrate <= 0x09) {
- name = "max6657";
+ if (address == 0x4C)
+ name = "max6657";
+ else
+ name = "max6659";
} else
/*
* The chip_id register of the MAX6680 and MAX6681 holds the
@@ -861,14 +869,16 @@
}
/* 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;
- if (data->kind == max6657 || data->kind == max6646)
+ if (data->kind == max6657 || data->kind == max6659
+ || data->kind == max6646)
data->flags |= LM90_HAVE_LOCAL_EXT;
- if (data->kind != max6657 && data->kind != max6646
- && data->kind != max6680)
+ if (data->kind != max6657 && data->kind != max6659
+ && data->kind != max6646 && data->kind != max6680)
data->flags |= LM90_HAVE_REM_LIMIT_EXT;
/* Initialize the LM90 chip */