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it87: Initial / experimental support for IT8783E/F

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Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Guenter Roeck
2012-03-02 12:50:56 -08:00
parent af0c89e86e
commit 075d5f91c5
2 changed files with 98 additions and 17 deletions
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92
it87.c
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@@ -19,6 +19,7 @@
* IT8726F Super I/O chip w/LPC interface
* IT8728F Super I/O chip w/LPC interface
* IT8758E Super I/O chip w/LPC interface
* IT8783E/F Super I/O chip w/LPC interface
* Sis950 A clone of the IT8705F
*
* Copyright (C) 2001 Chris Gauthron
@@ -59,7 +60,7 @@
#define DRVNAME "it87"
enum chips { it87, it8712, it8716, it8718, it8720, it8721, it8728 };
enum chips { it87, it8712, it8716, it8718, it8720, it8721, it8728, it8783 };
static unsigned short force_id;
module_param(force_id, ushort, 0);
@@ -137,13 +138,17 @@ static inline void superio_exit(void)
#define IT8721F_DEVID 0x8721
#define IT8726F_DEVID 0x8726
#define IT8728F_DEVID 0x8728
#define IT8783E_DEVID 0x8783
#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_GPIO3_REG 0x27
#define IT87_SIO_GPIO5_REG 0x29
#define IT87_SIO_PINX1_REG 0x2a /* Pin selection */
#define IT87_SIO_PINX2_REG 0x2c /* Pin selection */
#define IT87_SIO_SPI_REG 0xef /* SPI function pin select */
#define IT87_SIO_VID_REG 0xfc /* VID value */
#define IT87_SIO_BEEP_PIN_REG 0xf6 /* Beep pin mapping */
@@ -313,8 +318,12 @@ static u8 in_to_reg(const struct it87_data *data, int nr, long val)
lsb = 24;
else
lsb = 12;
} else
lsb = 16;
} else {
if (data->in_scaled & (1 << nr))
lsb = 32;
else
lsb = 16;
}
val = DIV_ROUND_CLOSEST(val, lsb);
return SENSORS_LIMIT(val, 0, 255);
@@ -327,8 +336,12 @@ static int in_from_reg(const struct it87_data *data, int nr, int val)
return val * 24;
else
return val * 12;
} else
return val * 16;
} else {
if (data->in_scaled & (1 << nr))
return val * 32;
else
return val * 16;
}
}
static inline u8 FAN_TO_REG(long rpm, int div)
@@ -407,7 +420,8 @@ static inline int has_16bit_fans(const struct it87_data *data)
|| data->type == it8718
|| data->type == it8720
|| data->type == it8721
|| data->type == it8728;
|| data->type == it8728
|| data->type == it8783;
}
static inline int has_old_autopwm(const struct it87_data *data)
@@ -1651,6 +1665,9 @@ static int __init it87_find(unsigned short *address,
case IT8728F_DEVID:
sio_data->type = it8728;
break;
case IT8783E_DEVID:
sio_data->type = it8783;
break;
case 0xffff: /* No device at all */
goto exit;
default:
@@ -1686,6 +1703,60 @@ static int __init it87_find(unsigned short *address,
/* The IT8705F has a different LD number for GPIO */
superio_select(5);
sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f;
} else if (sio_data->type == it8783) {
int reg25, reg27, reg2A, reg2C, regEF;
sio_data->skip_vid = 1; /* No VID */
superio_select(GPIO);
reg25 = superio_inb(IT87_SIO_GPIO1_REG);
reg27 = superio_inb(IT87_SIO_GPIO3_REG);
reg2A = superio_inb(IT87_SIO_PINX1_REG);
reg2C = superio_inb(IT87_SIO_PINX2_REG);
regEF = superio_inb(IT87_SIO_SPI_REG);
/* Check if fan3 is there or not */
if ((reg27 & (1 << 0)) || !(reg2C & (1 << 2)))
sio_data->skip_fan |= (1 << 2);
if ((reg25 & (1 << 4))
|| (!(reg2A & (1 << 1)) && (regEF & (1 << 0))))
sio_data->skip_pwm |= (1 << 2);
/* Check if fan2 is there or not */
if (reg27 & (1 << 7))
sio_data->skip_fan |= (1 << 1);
if (reg27 & (1 << 3))
sio_data->skip_pwm |= (1 << 1);
/* VIN5 */
if ((reg27 & (1 << 0)) || (reg2C & (1 << 2)))
; /* No VIN5 */
/* VIN6 */
if ((reg27 & (1 << 1)) || (reg2C & (1 << 2)))
; /* No VIN6 */
/* VIN7 */
if ((reg27 & (1 << 2)) || (reg2C & (1 << 2))) {
/*
* If the external VIN7 pin is disabled, route it to the
* internal VCCH5V if that is not already done.
*/
if (!(reg2C & (1 << 1))) {
reg2C |= (1 << 1);
superio_outb(IT87_SIO_PINX2_REG, reg2C);
pr_notice("Routing internal VCCH to in7\n");
}
}
if (reg2C & (1 << 0))
sio_data->internal |= (1 << 0);
if (reg2C & (1 << 1))
sio_data->internal |= (1 << 1);
sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f;
} else {
int reg;
@@ -1694,8 +1765,8 @@ static int __init it87_find(unsigned short *address,
reg = superio_inb(IT87_SIO_GPIO3_REG);
if (sio_data->type == it8721 || sio_data->type == it8728) {
/*
* The IT8721F/IT8758E doesn't have VID pins at all,
* not sure about the IT8728F.
* The IT8721F/IT8758E/IT8783E/F don't have VID pins
* at all, not sure about the IT8728F.
*/
sio_data->skip_vid = 1;
} else {
@@ -1867,6 +1938,11 @@ static int __devinit it87_probe(struct platform_device *pdev)
data->in_scaled |= (1 << 7); /* in7 is VSB */
if (sio_data->internal & (1 << 2))
data->in_scaled |= (1 << 8); /* in8 is Vbat */
} else if (sio_data->type == it8783) {
if (sio_data->internal & (1 << 0))
data->in_scaled |= (1 << 3); /* in3 is VCC5V */
if (sio_data->internal & (1 << 1))
data->in_scaled |= (1 << 7); /* in7 is VCCH5V */
}
/* Initialize the IT87 chip */