IT8620E is widely reported to be compatible to IT7828F.
Add generic support for it.
Note that IT8620E is reported to support up to 5 pwm controls.
This functionality is not currently supported.
Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
---
Do we know enough about the chip to add support for it ?
Should we assume that it is closer to IT8603E/IT8623E ?
Documentation/hwmon/it87 | 17 ++++++++++++-----
drivers/hwmon/Kconfig | 2 +-
drivers/hwmon/it87.c | 19 ++++++++++++++++---
3 files changed, 29 insertions(+), 9 deletions(-)
diff --git a/Documentation/hwmon/it87 b/Documentation/hwmon/it87
index 19fbe77..34d654e 100644
--- a/Documentation/hwmon/it87
+++ b/Documentation/hwmon/it87
@@ -6,6 +6,10 @@ Supported chips:
Prefix: 'it8603'
Addresses scanned: from Super I/O config space (8 I/O ports)
Datasheet: Not publicly available
+ * IT8620E
+ Prefix: 'it8620'
+ Addresses scanned: from Super I/O config space (8 I/O ports)
+ Datasheet: Not publicly available
* IT8705F
Prefix: 'it87'
Addresses scanned: from Super I/O config space (8 I/O ports)
@@ -102,9 +106,9 @@ motherboard models.
Description
-----------
-This driver implements support for the IT8603E, IT8623E, IT8705F, IT8712F,
-IT8716F, IT8718F, IT8720F, IT8721F, IT8726F, IT8728F, IT8758E, IT8771E,
-IT8772E, IT8781F, IT8782F, IT8783E/F, IT8786E, and SiS950 chips.
+This driver implements support for the IT8603E, IT8620E, IT8623E, IT8705F,
+IT8712F, IT8716F, IT8718F, IT8720F, IT8721F, IT8726F, IT8728F, IT8758E,
+IT8771E, IT8772E, IT8781F, IT8782F, IT8783E/F, IT8786E, and SiS950 chips.
These chips are 'Super I/O chips', supporting floppy disks, infrared ports,
joysticks and other miscellaneous stuff. For hardware monitoring, they
@@ -142,8 +146,11 @@ The IT8728F, IT8771E, and IT8772E are considered compatible with the IT8721F,
until a datasheet becomes available (hopefully.)
The IT8603E/IT8623E is a custom design, hardware monitoring part is similar to
-IT8728F. It only supports 16-bit fan mode, the full speed mode of the
-fan is not supported (value 0 of pwmX_enable).
+IT8728F. It only supports three fans, 16-bit fan mode, and the full speed mode
+of the fan is not supported (value 0 of pwmX_enable).
+
+The IT8620E is another custom design, hardware monitoring part is similar to
+IT8728F. It only supports 16-bit fan mode.
Temperatures are measured in degrees Celsius. An alarm is triggered once
when the Overtemperature Shutdown limit is crossed.
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index 018f574..a17c98c 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -600,7 +600,7 @@ config SENSORS_IT87
If you say yes here you get support for ITE IT8705F, IT8712F,
IT8716F, IT8718F, IT8720F, IT8721F, IT8726F, IT8728F, IT8758E,
IT8771E, IT8772E, IT8781F, IT8782F, IT8783E/F, IT8786E,
- and IT8603E sensor chips, and the SiS950 clone.
+ IT8603E, IT8620E, and IT8623E 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 ab12dc2..ab9a8be 100644
--- a/drivers/hwmon/it87.c
+++ b/drivers/hwmon/it87.c
@@ -11,6 +11,7 @@
* similar parts. The other devices are supported by different drivers.
*
* Supports: IT8603E Super I/O chip w/LPC interface
+ * IT8620E Super I/O chip w/LPC interface
* IT8623E Super I/O chip w/LPC interface
* IT8705F Super I/O chip w/LPC interface
* IT8712F Super I/O chip w/LPC interface
@@ -68,7 +69,7 @@
#define DRVNAME "it87"
enum chips { it87, it8712, it8716, it8718, it8720, it8721, it8728, it8771,
- it8772, it8781, it8782, it8783, it8786, it8603 };
+ it8772, it8781, it8782, it8783, it8786, it8603, it8620 };
static unsigned short force_id;
module_param(force_id, ushort, 0);
@@ -153,6 +154,7 @@ static inline void superio_exit(void)
#define IT8783E_DEVID 0x8783
#define IT8786E_DEVID 0x8786
#define IT8603E_DEVID 0x8603
+#define IT8620E_DEVID 0x8620
#define IT8623E_DEVID 0x8623
#define IT87_ACT_REG 0x30
#define IT87_BASE_REG 0x60
@@ -349,6 +351,12 @@ static const struct it87_devices it87_devices[] = {
| FEAT_TEMP_OFFSET | FEAT_TEMP_PECI,
.peci_mask = 0x07,
},
+ [it8620] = {
+ .name = "it8620",
+ .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS
+ | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI | FEAT_FIVE_FANS,
+ .peci_mask = 0x07,
+ },
};
#define has_16bit_fans(data) ((data)->features & FEAT_16BIT_FANS)
@@ -1804,6 +1812,9 @@ static int __init it87_find(unsigned short *address,
case IT8623E_DEVID:
sio_data->type = it8603;
break;
+ case IT8620E_DEVID:
+ sio_data->type = it8620;
+ break;
case 0xffff: /* No device at all */
goto exit;
default:
@@ -1827,7 +1838,8 @@ static int __init it87_find(unsigned short *address,
sio_data->revision = superio_inb(DEVREV) & 0x0f;
pr_info("Found IT%04x%c chip at 0x%x, revision %d\n", chip_type,
chip_type == 0x8771 || chip_type == 0x8772 ||
- chip_type == 0x8786 || chip_type == 0x8603 ? 'E' : 'F',
+ chip_type == 0x8786 || chip_type == 0x8603 ||
+ chip_type == 0x8620 ? 'E' : 'F',
*address, sio_data->revision);
/* in8 (Vbat) is always internal */
@@ -1993,7 +2005,8 @@ 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 ||
+ if ((reg & (1 << 1)) ||
+ sio_data->type == it8620 || sio_data->type == it8721 ||
sio_data->type == it8728 || sio_data->type == it8771 ||
sio_data->type == it8772 || sio_data->type == it8786)
sio_data->internal |= (1 << 1);
--
2.1.0
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