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hwmon: (it87) Add support for IT8620E

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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.

Reviewed-by: Jean Delvare <[email protected]>
Signed-off-by: Guenter Roeck <[email protected]>
This commit is contained in:
Guenter Roeck 2015-02-13 20:13:20 -08:00
commit 3ba9d977a9
3 changed files with 53 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

2
drivers/hwmon/Kconfig
View file

@ -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.

43
drivers/hwmon/it87.c
View file

@ -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);
@ -155,12 +156,14 @@ static inline void superio_exit(void)
#define IT8786E_DEVID 0x8786
#define IT8790E_DEVID 0x8790
#define IT8603E_DEVID 0x8603
#define IT8620E_DEVID 0x8620
#define IT8623E_DEVID 0x8623
#define IT87_ACT_REG 0x30
#define IT87_BASE_REG 0x60
/* Logical device 7 registers (IT8712F and later) */
#define IT87_SIO_GPIO1_REG 0x25
#define IT87_SIO_GPIO2_REG 0x26
#define IT87_SIO_GPIO3_REG 0x27
#define IT87_SIO_GPIO5_REG 0x29
#define IT87_SIO_PINX1_REG 0x2a /* Pin selection */
@ -375,6 +378,14 @@ static const struct it87_devices it87_devices[] = {
| FEAT_TEMP_OFFSET | FEAT_TEMP_PECI | FEAT_IN7_INTERNAL,
.peci_mask = 0x07,
},
[it8620] = {
.name = "it8620",
.suffix = "E",
.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,
},
};
#define has_16bit_fans(data) ((data)->features & FEAT_16BIT_FANS)
@ -1850,6 +1861,9 @@ 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:
@ -1984,6 +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;