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authorGuenter Roeck <linux@roeck-us.net>2012-09-07 17:34:41 -0600
committerGuenter Roeck <linux@roeck-us.net>2013-02-06 09:57:56 -0800
commitb06367070de3d9f50e4f8f82b92e77ba9a8ebf8f (patch)
tree0b2ea48fa06a573bcace0c9edd4a44a9635dd27c /drivers/hwmon
parent5372d2d71c46e5649e5d2edd4514adcd6fe7a085 (diff)
hwmon: (it87) Add support for IT8771E and IT8772E
Assume that IT8771E and IT8772E are fully compatible with IT8728F. IT8771E support contributed by Kelly Anderson. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Jean Delvare <khali@linux-fr.org>
Diffstat (limited to 'drivers/hwmon')
-rw-r--r--drivers/hwmon/Kconfig3
-rw-r--r--drivers/hwmon/it87.c39
2 files changed, 37 insertions, 5 deletions
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index ef5757265f78..3588b2a0915c 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -506,7 +506,8 @@ config SENSORS_IT87
help
If you say yes here you get support for ITE IT8705F, IT8712F,
IT8716F, IT8718F, IT8720F, IT8721F, IT8726F, IT8728F, IT8758E,
- IT8782F, and IT8783E/F sensor chips, and the SiS950 clone.
+ IT8771E, IT8772E, IT8782F, and IT8783E/F sensor chips, and the
+ SiS950 clone.
This driver can also be built as a module. If so, the module
will be called it87.
diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c
index 29632e849285..37fc980fde24 100644
--- a/drivers/hwmon/it87.c
+++ b/drivers/hwmon/it87.c
@@ -19,6 +19,8 @@
* IT8726F Super I/O chip w/LPC interface
* IT8728F Super I/O chip w/LPC interface
* IT8758E Super I/O chip w/LPC interface
+ * IT8771E Super I/O chip w/LPC interface
+ * IT8772E Super I/O chip w/LPC interface
* IT8782F Super I/O chip w/LPC interface
* IT8783E/F Super I/O chip w/LPC interface
* Sis950 A clone of the IT8705F
@@ -61,8 +63,8 @@
#define DRVNAME "it87"
-enum chips { it87, it8712, it8716, it8718, it8720, it8721, it8728, it8782,
- it8783 };
+enum chips { it87, it8712, it8716, it8718, it8720, it8721, it8728, it8771,
+ it8772, it8782, it8783 };
static unsigned short force_id;
module_param(force_id, ushort, 0);
@@ -140,6 +142,8 @@ static inline void superio_exit(void)
#define IT8721F_DEVID 0x8721
#define IT8726F_DEVID 0x8726
#define IT8728F_DEVID 0x8728
+#define IT8771E_DEVID 0x8771
+#define IT8772E_DEVID 0x8772
#define IT8782F_DEVID 0x8782
#define IT8783E_DEVID 0x8783
#define IT87_ACT_REG 0x30
@@ -281,6 +285,24 @@ static const struct it87_devices it87_devices[] = {
| FEAT_TEMP_OFFSET | FEAT_TEMP_PECI,
.peci_mask = 0x07,
},
+ [it8771] = {
+ .name = "it8771",
+ .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS
+ | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI,
+ /* PECI: guesswork */
+ /* 12mV ADC (OHM) */
+ /* 16 bit fans (OHM) */
+ .peci_mask = 0x07,
+ },
+ [it8772] = {
+ .name = "it8772",
+ .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS
+ | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI,
+ /* PECI (coreboot) */
+ /* 12mV ADC (HWSensors4, OHM) */
+ /* 16 bit fans (HWSensors4, OHM) */
+ .peci_mask = 0x07,
+ },
[it8782] = {
.name = "it8782",
.features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET
@@ -1708,6 +1730,12 @@ static int __init it87_find(unsigned short *address,
case IT8728F_DEVID:
sio_data->type = it8728;
break;
+ case IT8771E_DEVID:
+ sio_data->type = it8771;
+ break;
+ case IT8772E_DEVID:
+ sio_data->type = it8772;
+ break;
case IT8782F_DEVID:
sio_data->type = it8782;
break;
@@ -1825,10 +1853,11 @@ static int __init it87_find(unsigned short *address,
reg = superio_inb(IT87_SIO_GPIO3_REG);
if (sio_data->type == it8721 || sio_data->type == it8728 ||
+ sio_data->type == it8771 || sio_data->type == it8772 ||
sio_data->type == it8782) {
/*
* IT8721F/IT8758E, and IT8782F don't have VID pins
- * at all, not sure about the IT8728F.
+ * at all, not sure about the IT8728F and compatibles.
*/
sio_data->skip_vid = 1;
} else {
@@ -1882,7 +1911,9 @@ static int __init it87_find(unsigned short *address,
if (reg & (1 << 0))
sio_data->internal |= (1 << 0);
if ((reg & (1 << 1)) || sio_data->type == it8721 ||
- sio_data->type == it8728)
+ sio_data->type == it8728 ||
+ sio_data->type == it8771 ||
+ sio_data->type == it8772)
sio_data->internal |= (1 << 1);
/*