IT8620E is mostly compatible to IT7828F. Add generic support for it.
IT8620E supports up to 6 fan tachometers and 6 pwm controls.
Support for the 6th tachometer and for the additional pwm controls
are addded in separate patches.
Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
---
Documentation/hwmon/it87 | 13 ++++++++++---
drivers/hwmon/Kconfig | 2 +-
drivers/hwmon/it87.c | 42 +++++++++++++++++++++++++++++++++++++++++-
3 files changed, 52 insertions(+), 5 deletions(-)
diff --git a/Documentation/hwmon/it87 b/Documentation/hwmon/it87
index 64ea41f017c1..b5c0eed22c15 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)
@@ -106,7 +110,7 @@ motherboard models.
Description
-----------
-This driver implements support for the IT8603E, IT8623E, IT8705F,
+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, IT8790E, and SiS950
chips.
@@ -147,8 +151,11 @@ 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.
The IT8790E supports up to three fans. 16-bit fan mode is always enabled.
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index 929d30e2047e..eb8424f5e4b4 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -601,7 +601,7 @@ 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, IT8790E,
- IT8603E, and IT8623E 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 01a021172121..ee6d30960fce 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
@@ -69,7 +70,7 @@
#define DRVNAME "it87"
enum chips { it87, it8712, it8716, it8718, it8720, it8721, it8728, it8771,
- it8772, it8781, it8782, it8783, it8786, it8790, it8603 };
+ it8772, it8781, it8782, it8783, it8786, it8790, it8603, it8620 };
static unsigned short force_id;
module_param(force_id, ushort, 0);
@@ -154,6 +155,7 @@ 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 IT8790E_DEVID 0x8790
#define IT87_ACT_REG 0x30
@@ -375,6 +377,14 @@ static const struct it87_devices it87_devices[] = {
.peci_mask = 0x07,
.suffix = "E",
},
+ [it8620] = {
+ .name = "it8620",
+ .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS
+ | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI | FEAT_FIVE_FANS
+ | FEAT_IN7_INTERNAL,
+ .peci_mask = 0x07,
+ .suffix = "E",
+ },
};
#define has_16bit_fans(data) ((data)->features & FEAT_16BIT_FANS)
@@ -1850,6 +1860,9 @@ 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:
@@ -1985,6 +1998,33 @@ static int __init it87_find(unsigned short *address,
sio_data->internal |= (1 << 3); /* in9 is AVCC */
sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f;
+ } else if (sio_data->type == it8620) {
+ int reg;
+
+ superio_select(GPIO);
+
+ /* Check for fan4, fan5 */
+ reg = superio_inb(IT87_SIO_GPIO2_REG);
+ if (!(reg & (1 << 5)))
+ sio_data->skip_fan |= (1 << 3);
+ if (!(reg & (1 << 4)))
+ sio_data->skip_fan |= (1 << 4);
+
+ /* Check for pwm3, fan3 */
+ reg = superio_inb(IT87_SIO_GPIO3_REG);
+ if (reg & (1 << 6))
+ sio_data->skip_pwm |= (1 << 2);
+ if (reg & (1 << 7))
+ sio_data->skip_fan |= (1 << 2);
+
+ /* Check for pwm2, fan2 */
+ reg = superio_inb(IT87_SIO_GPIO5_REG);
+ if (reg & (1 << 1))
+ sio_data->skip_pwm |= (1 << 1);
+ if (reg & (1 << 2))
+ sio_data->skip_fan |= (1 << 1);
+
+ sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f;
} else {
int reg;
bool uart6;
--
2.1.0
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