diff options
Diffstat (limited to 'drivers/hwmon')
-rw-r--r-- | drivers/hwmon/Kconfig | 4 | ||||
-rw-r--r-- | drivers/hwmon/it87.c | 61 |
2 files changed, 51 insertions, 14 deletions
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index cefb1adf4534..78c237f8fa0a 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -186,8 +186,8 @@ config SENSORS_IT87 select I2C_ISA select HWMON_VID help - If you say yes here you get support for ITE IT8705F, IT8712F and - IT8716F sensor chips, and the SiS960 clone. + If you say yes here you get support for ITE IT8705F, IT8712F, + IT8716F and IT8718F sensor chips, and the SiS960 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 e9ab8a32903b..956cd553c711 100644 --- a/drivers/hwmon/it87.c +++ b/drivers/hwmon/it87.c @@ -5,6 +5,7 @@ Supports: IT8705F Super I/O chip w/LPC interface IT8712F Super I/O chip w/LPC interface & SMBus IT8716F Super I/O chip w/LPC interface + IT8718F Super I/O chip w/LPC interface Sis950 A clone of the IT8705F Copyright (C) 2001 Chris Gauthron <chrisg@0-in.com> @@ -51,12 +52,13 @@ static unsigned short normal_i2c[] = { 0x2d, I2C_CLIENT_END }; static unsigned short isa_address; /* Insmod parameters */ -I2C_CLIENT_INSMOD_3(it87, it8712, it8716); +I2C_CLIENT_INSMOD_4(it87, it8712, it8716, it8718); #define REG 0x2e /* The register to read/write */ #define DEV 0x07 /* Register: Logical device select */ #define VAL 0x2f /* The value to read/write */ #define PME 0x04 /* The device with the fan registers in it */ +#define GPIO 0x07 /* The device with the IT8718F VID value in it */ #define DEVID 0x20 /* Register: Device ID */ #define DEVREV 0x22 /* Register: Device Revision */ @@ -78,10 +80,10 @@ static int superio_inw(int reg) } static inline void -superio_select(void) +superio_select(int ldn) { outb(DEV, REG); - outb(PME, VAL); + outb(ldn, VAL); } static inline void @@ -100,21 +102,27 @@ superio_exit(void) outb(0x02, VAL); } +/* Logical device 4 registers */ #define IT8712F_DEVID 0x8712 #define IT8705F_DEVID 0x8705 #define IT8716F_DEVID 0x8716 +#define IT8718F_DEVID 0x8718 #define IT87_ACT_REG 0x30 #define IT87_BASE_REG 0x60 +/* Logical device 7 registers (IT8712F and later) */ +#define IT87_SIO_PINX2_REG 0x2c /* Pin selection */ +#define IT87_SIO_VID_REG 0xfc /* VID value */ + /* Update battery voltage after every reading if true */ static int update_vbat; /* Not all BIOSes properly configure the PWM registers */ static int fix_pwm_polarity; -/* Chip Type */ - +/* Values read from Super-I/O config space */ static u16 chip_type; +static u8 vid_value; /* Many IT87 constants specified below */ @@ -133,6 +141,8 @@ static u16 chip_type; #define IT87_REG_ALARM2 0x02 #define IT87_REG_ALARM3 0x03 +/* The IT8718F has the VID value in a different register, in Super-I/O + configuration space. */ #define IT87_REG_VID 0x0a /* Warning: register 0x0b is used for something completely different in new chips/revisions. I suspect only 16-bit tachometer mode will work @@ -793,10 +803,11 @@ static int __init it87_find(unsigned short *address) chip_type = superio_inw(DEVID); if (chip_type != IT8712F_DEVID && chip_type != IT8716F_DEVID + && chip_type != IT8718F_DEVID && chip_type != IT8705F_DEVID) goto exit; - superio_select(); + superio_select(PME); if (!(superio_inb(IT87_ACT_REG) & 0x01)) { pr_info("it87: Device not activated, skipping\n"); goto exit; @@ -812,6 +823,21 @@ static int __init it87_find(unsigned short *address) pr_info("it87: Found IT%04xF chip at 0x%x, revision %d\n", chip_type, *address, superio_inb(DEVREV) & 0x0f); + /* Read GPIO config and VID value from LDN 7 (GPIO) */ + if (chip_type != IT8705F_DEVID) { + int reg; + + superio_select(GPIO); + if (chip_type == it8718) + vid_value = superio_inb(IT87_SIO_VID_REG); + + reg = superio_inb(IT87_SIO_PINX2_REG); + if (reg & (1 << 0)) + pr_info("it87: in3 is VCC (+5V)\n"); + if (reg & (1 << 1)) + pr_info("it87: in7 is VCCH (+5V Stand-By)\n"); + } + exit: superio_exit(); return err; @@ -880,6 +906,9 @@ static int it87_detect(struct i2c_adapter *adapter, int address, int kind) case IT8716F_DEVID: kind = it8716; break; + case IT8718F_DEVID: + kind = it8718; + break; } } } @@ -900,6 +929,8 @@ static int it87_detect(struct i2c_adapter *adapter, int address, int kind) name = "it8712"; } else if (kind == it8716) { name = "it8716"; + } else if (kind == it8718) { + name = "it8718"; } /* Fill in the remaining client fields and put it into the global list */ @@ -969,7 +1000,8 @@ static int it87_detect(struct i2c_adapter *adapter, int address, int kind) device_create_file(&new_client->dev, &sensor_dev_attr_temp3_type.dev_attr); /* Do not create fan files for disabled fans */ - if (data->type == it8716) { /* 16-bit tachometers */ + if (data->type == it8716 || data->type == it8718) { + /* 16-bit tachometers */ if (data->has_fan & (1 << 0)) { device_create_file(&new_client->dev, &sensor_dev_attr_fan1_input16.dev_attr); @@ -989,6 +1021,7 @@ static int it87_detect(struct i2c_adapter *adapter, int address, int kind) &sensor_dev_attr_fan3_min16.dev_attr); } } else { + /* 8-bit tachometers with clock divider */ if (data->has_fan & (1 << 0)) { device_create_file(&new_client->dev, &sensor_dev_attr_fan1_input.dev_attr); @@ -1025,8 +1058,11 @@ static int it87_detect(struct i2c_adapter *adapter, int address, int kind) device_create_file(&new_client->dev, &sensor_dev_attr_pwm3.dev_attr); } - if (data->type == it8712 || data->type == it8716) { + if (data->type == it8712 || data->type == it8716 + || data->type == it8718) { data->vrm = vid_which_vrm(); + /* VID reading from Super-I/O config space if available */ + data->vid = vid_value; device_create_file_vrm(new_client); device_create_file_vid(new_client); } @@ -1192,7 +1228,7 @@ static void it87_init_client(struct i2c_client *client, struct it87_data *data) data->has_fan = (data->fan_main_ctrl >> 4) & 0x07; /* Set tachometers to 16-bit mode if needed */ - if (data->type == it8716) { + if (data->type == it8716 || data->type == it8718) { tmp = it87_read_value(client, IT87_REG_FAN_16BIT); if (~tmp & 0x07 & data->has_fan) { dev_dbg(&client->dev, @@ -1265,7 +1301,7 @@ static struct it87_data *it87_update_device(struct device *dev) data->fan[i] = it87_read_value(client, IT87_REG_FAN(i)); /* Add high byte if in 16-bit mode */ - if (data->type == it8716) { + if (data->type == it8716 || data->type == it8718) { data->fan[i] |= it87_read_value(client, IT87_REG_FANX(i)) << 8; data->fan_min[i] |= it87_read_value(client, @@ -1282,7 +1318,8 @@ static struct it87_data *it87_update_device(struct device *dev) } /* Newer chips don't have clock dividers */ - if ((data->has_fan & 0x07) && data->type != it8716) { + if ((data->has_fan & 0x07) && data->type != it8716 + && data->type != it8718) { i = it87_read_value(client, IT87_REG_FAN_DIV); data->fan_div[0] = i & 0x07; data->fan_div[1] = (i >> 3) & 0x07; @@ -1340,7 +1377,7 @@ static void __exit sm_it87_exit(void) MODULE_AUTHOR("Chris Gauthron <chrisg@0-in.com>"); -MODULE_DESCRIPTION("IT8705F/8712F/8716F, SiS950 driver"); +MODULE_DESCRIPTION("IT8705F/8712F/8716F/8718F, SiS950 driver"); module_param(update_vbat, bool, 0); MODULE_PARM_DESC(update_vbat, "Update vbat if set else return powerup value"); module_param(fix_pwm_polarity, bool, 0); |