hwmon: (dme1737) Add support for the SMSC SCH5027
Add support for the SCH5027. The differences to the DME1737 are: - No support for programmable temp offsets - In auto mode, PWM outputs stay on min value if temp goes below low threshold and can't be programmed to fully turn off - Different voltage scaling - No VID input Signed-off-by: Juerg Haefliger <juergh@gmail.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
This commit is contained in:
Juerg Haefliger
committed by
Jean Delvare
Jean Delvare
parent
55d68d75ab
commit
549edb8332
@ -1,11 +1,11 @@
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/*
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* dme1737.c - Driver for the SMSC DME1737, Asus A8000, and SMSC SCH311x
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* Super-I/O chips integrated hardware monitoring features.
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* Copyright (c) 2007 Juerg Haefliger <juergh@gmail.com>
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* dme1737.c - Driver for the SMSC DME1737, Asus A8000, SMSC SCH311x and
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* SCH5027 Super-I/O chips integrated hardware monitoring features.
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* Copyright (c) 2007, 2008 Juerg Haefliger <juergh@gmail.com>
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*
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* This driver is an I2C/ISA hybrid, meaning that it uses the I2C bus to access
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* the chip registers if a DME1737 (or A8000) is found and the ISA bus if a
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* SCH311x chip is found. Both types of chips have very similar hardware
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* the chip registers if a DME1737, A8000, or SCH5027 is found and the ISA bus
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* if a SCH311x chip is found. Both types of chips have very similar hardware
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* monitoring capabilities but differ in the way they can be accessed.
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*
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* This program is free software; you can redistribute it and/or modify
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@ -57,7 +57,10 @@ MODULE_PARM_DESC(probe_all_addr, "Include probing of non-standard LPC "
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static const unsigned short normal_i2c[] = {0x2c, 0x2d, 0x2e, I2C_CLIENT_END};
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/* Insmod parameters */
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I2C_CLIENT_INSMOD_1(dme1737);
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I2C_CLIENT_INSMOD_2(dme1737, sch5027);
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/* ISA chip types */
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enum isa_chips { sch311x = sch5027 + 1 };
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/* ---------------------------------------------------------------------
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* Registers
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@ -163,6 +166,7 @@ static const u8 DME1737_BIT_ALARM_FAN[] = {10, 11, 12, 13, 22, 23};
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#define DME1737_VERSTEP 0x88
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#define DME1737_VERSTEP_MASK 0xf8
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#define SCH311X_DEVICE 0x8c
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#define SCH5027_VERSTEP 0x69
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/* Length of ISA address segment */
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#define DME1737_EXTENT 2
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@ -182,6 +186,7 @@ struct dme1737_data {
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unsigned long last_update; /* in jiffies */
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unsigned long last_vbat; /* in jiffies */
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enum chips type;
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const int *in_nominal; /* pointer to IN_NOMINAL array */
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u8 vid;
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u8 pwm_rr_en;
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@ -220,23 +225,23 @@ static const int IN_NOMINAL_DME1737[] = {5000, 2250, 3300, 5000, 12000, 3300,
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3300};
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static const int IN_NOMINAL_SCH311x[] = {2500, 1500, 3300, 5000, 12000, 3300,
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3300};
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#define IN_NOMINAL(ix, type) (((type) == dme1737) ? \
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IN_NOMINAL_DME1737[(ix)] : \
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IN_NOMINAL_SCH311x[(ix)])
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static const int IN_NOMINAL_SCH5027[] = {5000, 2250, 3300, 1125, 1125, 3300,
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3300};
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#define IN_NOMINAL(type) ((type) == sch311x ? IN_NOMINAL_SCH311x : \
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(type) == sch5027 ? IN_NOMINAL_SCH5027 : \
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IN_NOMINAL_DME1737)
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/* Voltage input
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* Voltage inputs have 16 bits resolution, limit values have 8 bits
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* resolution. */
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static inline int IN_FROM_REG(int reg, int ix, int res, int type)
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static inline int IN_FROM_REG(int reg, int nominal, int res)
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{
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return (reg * IN_NOMINAL(ix, type) + (3 << (res - 3))) /
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(3 << (res - 2));
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return (reg * nominal + (3 << (res - 3))) / (3 << (res - 2));
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}
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static inline int IN_TO_REG(int val, int ix, int type)
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static inline int IN_TO_REG(int val, int nominal)
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{
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return SENSORS_LIMIT((val * 192 + IN_NOMINAL(ix, type) / 2) /
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IN_NOMINAL(ix, type), 0, 255);
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return SENSORS_LIMIT((val * 192 + nominal / 2) / nominal, 0, 255);
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}
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/* Temperature input
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@ -565,7 +570,10 @@ static struct dme1737_data *dme1737_update_device(struct device *dev)
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/* Sample register contents every 1 sec */
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if (time_after(jiffies, data->last_update + HZ) || !data->valid) {
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data->vid = dme1737_read(client, DME1737_REG_VID) & 0x3f;
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if (data->type != sch5027) {
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data->vid = dme1737_read(client, DME1737_REG_VID) &
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0x3f;
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}
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/* In (voltage) registers */
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for (ix = 0; ix < ARRAY_SIZE(data->in); ix++) {
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@ -593,8 +601,10 @@ static struct dme1737_data *dme1737_update_device(struct device *dev)
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DME1737_REG_TEMP_MIN(ix));
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data->temp_max[ix] = dme1737_read(client,
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DME1737_REG_TEMP_MAX(ix));
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data->temp_offset[ix] = dme1737_read(client,
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DME1737_REG_TEMP_OFFSET(ix));
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if (data->type != sch5027) {
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data->temp_offset[ix] = dme1737_read(client,
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DME1737_REG_TEMP_OFFSET(ix));
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}
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}
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/* In and temp LSB registers
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@ -669,9 +679,11 @@ static struct dme1737_data *dme1737_update_device(struct device *dev)
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data->zone_abs[ix] = dme1737_read(client,
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DME1737_REG_ZONE_ABS(ix));
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}
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for (ix = 0; ix < ARRAY_SIZE(data->zone_hyst); ix++) {
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data->zone_hyst[ix] = dme1737_read(client,
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if (data->type != sch5027) {
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for (ix = 0; ix < ARRAY_SIZE(data->zone_hyst); ix++) {
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data->zone_hyst[ix] = dme1737_read(client,
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DME1737_REG_ZONE_HYST(ix));
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}
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}
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/* Alarm registers */
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@ -735,13 +747,13 @@ static ssize_t show_in(struct device *dev, struct device_attribute *attr,
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switch (fn) {
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case SYS_IN_INPUT:
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res = IN_FROM_REG(data->in[ix], ix, 16, data->type);
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res = IN_FROM_REG(data->in[ix], data->in_nominal[ix], 16);
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break;
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case SYS_IN_MIN:
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res = IN_FROM_REG(data->in_min[ix], ix, 8, data->type);
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res = IN_FROM_REG(data->in_min[ix], data->in_nominal[ix], 8);
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break;
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case SYS_IN_MAX:
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res = IN_FROM_REG(data->in_max[ix], ix, 8, data->type);
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res = IN_FROM_REG(data->in_max[ix], data->in_nominal[ix], 8);
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break;
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case SYS_IN_ALARM:
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res = (data->alarms >> DME1737_BIT_ALARM_IN[ix]) & 0x01;
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@ -768,12 +780,12 @@ static ssize_t set_in(struct device *dev, struct device_attribute *attr,
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mutex_lock(&data->update_lock);
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switch (fn) {
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case SYS_IN_MIN:
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data->in_min[ix] = IN_TO_REG(val, ix, data->type);
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data->in_min[ix] = IN_TO_REG(val, data->in_nominal[ix]);
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dme1737_write(client, DME1737_REG_IN_MIN(ix),
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data->in_min[ix]);
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break;
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case SYS_IN_MAX:
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data->in_max[ix] = IN_TO_REG(val, ix, data->type);
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data->in_max[ix] = IN_TO_REG(val, data->in_nominal[ix]);
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dme1737_write(client, DME1737_REG_IN_MAX(ix),
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data->in_max[ix]);
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break;
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@ -1570,43 +1582,56 @@ static struct attribute *dme1737_attr[] ={
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&sensor_dev_attr_temp1_max.dev_attr.attr,
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&sensor_dev_attr_temp1_alarm.dev_attr.attr,
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&sensor_dev_attr_temp1_fault.dev_attr.attr,
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&sensor_dev_attr_temp1_offset.dev_attr.attr,
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&sensor_dev_attr_temp2_input.dev_attr.attr,
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&sensor_dev_attr_temp2_min.dev_attr.attr,
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&sensor_dev_attr_temp2_max.dev_attr.attr,
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&sensor_dev_attr_temp2_alarm.dev_attr.attr,
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&sensor_dev_attr_temp2_fault.dev_attr.attr,
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&sensor_dev_attr_temp2_offset.dev_attr.attr,
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&sensor_dev_attr_temp3_input.dev_attr.attr,
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&sensor_dev_attr_temp3_min.dev_attr.attr,
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&sensor_dev_attr_temp3_max.dev_attr.attr,
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&sensor_dev_attr_temp3_alarm.dev_attr.attr,
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&sensor_dev_attr_temp3_fault.dev_attr.attr,
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&sensor_dev_attr_temp3_offset.dev_attr.attr,
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/* Zones */
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&sensor_dev_attr_zone1_auto_point1_temp_hyst.dev_attr.attr,
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&sensor_dev_attr_zone1_auto_point1_temp.dev_attr.attr,
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&sensor_dev_attr_zone1_auto_point2_temp.dev_attr.attr,
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&sensor_dev_attr_zone1_auto_point3_temp.dev_attr.attr,
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&sensor_dev_attr_zone1_auto_channels_temp.dev_attr.attr,
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&sensor_dev_attr_zone2_auto_point1_temp_hyst.dev_attr.attr,
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&sensor_dev_attr_zone2_auto_point1_temp.dev_attr.attr,
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&sensor_dev_attr_zone2_auto_point2_temp.dev_attr.attr,
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&sensor_dev_attr_zone2_auto_point3_temp.dev_attr.attr,
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&sensor_dev_attr_zone2_auto_channels_temp.dev_attr.attr,
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&sensor_dev_attr_zone3_auto_point1_temp_hyst.dev_attr.attr,
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&sensor_dev_attr_zone3_auto_point1_temp.dev_attr.attr,
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&sensor_dev_attr_zone3_auto_point2_temp.dev_attr.attr,
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&sensor_dev_attr_zone3_auto_point3_temp.dev_attr.attr,
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&sensor_dev_attr_zone3_auto_channels_temp.dev_attr.attr,
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NULL
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};
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static const struct attribute_group dme1737_group = {
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.attrs = dme1737_attr,
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};
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/* The following struct holds misc attributes, which are not available in all
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* chips. Their creation depends on the chip type which is determined during
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* module load. */
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static struct attribute *dme1737_misc_attr[] = {
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/* Temperatures */
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&sensor_dev_attr_temp1_offset.dev_attr.attr,
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&sensor_dev_attr_temp2_offset.dev_attr.attr,
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&sensor_dev_attr_temp3_offset.dev_attr.attr,
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/* Zones */
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&sensor_dev_attr_zone1_auto_point1_temp_hyst.dev_attr.attr,
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&sensor_dev_attr_zone2_auto_point1_temp_hyst.dev_attr.attr,
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&sensor_dev_attr_zone3_auto_point1_temp_hyst.dev_attr.attr,
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/* Misc */
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&dev_attr_vrm.attr,
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&dev_attr_cpu0_vid.attr,
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NULL
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};
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static const struct attribute_group dme1737_group = {
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.attrs = dme1737_attr,
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static const struct attribute_group dme1737_misc_group = {
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.attrs = dme1737_misc_attr,
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};
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/* The following structs hold the PWM attributes, some of which are optional.
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@ -1618,7 +1643,6 @@ static struct attribute *dme1737_pwm1_attr[] = {
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&sensor_dev_attr_pwm1_enable.dev_attr.attr,
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&sensor_dev_attr_pwm1_ramp_rate.dev_attr.attr,
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&sensor_dev_attr_pwm1_auto_channels_zone.dev_attr.attr,
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&sensor_dev_attr_pwm1_auto_pwm_min.dev_attr.attr,
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&sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr,
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&sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr,
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NULL
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@ -1629,7 +1653,6 @@ static struct attribute *dme1737_pwm2_attr[] = {
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&sensor_dev_attr_pwm2_enable.dev_attr.attr,
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&sensor_dev_attr_pwm2_ramp_rate.dev_attr.attr,
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&sensor_dev_attr_pwm2_auto_channels_zone.dev_attr.attr,
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&sensor_dev_attr_pwm2_auto_pwm_min.dev_attr.attr,
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&sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr,
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&sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr,
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NULL
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@ -1640,7 +1663,6 @@ static struct attribute *dme1737_pwm3_attr[] = {
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&sensor_dev_attr_pwm3_enable.dev_attr.attr,
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&sensor_dev_attr_pwm3_ramp_rate.dev_attr.attr,
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&sensor_dev_attr_pwm3_auto_channels_zone.dev_attr.attr,
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&sensor_dev_attr_pwm3_auto_pwm_min.dev_attr.attr,
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&sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr,
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&sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr,
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NULL
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@ -1667,6 +1689,15 @@ static const struct attribute_group dme1737_pwm_group[] = {
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{ .attrs = dme1737_pwm6_attr },
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};
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/* The following struct holds misc PWM attributes, which are not available in
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* all chips. Their creation depends on the chip type which is determined
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* during module load. */
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static struct attribute *dme1737_pwm_misc_attr[] = {
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&sensor_dev_attr_pwm1_auto_pwm_min.dev_attr.attr,
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&sensor_dev_attr_pwm2_auto_pwm_min.dev_attr.attr,
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&sensor_dev_attr_pwm3_auto_pwm_min.dev_attr.attr,
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};
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/* The following structs hold the fan attributes, some of which are optional.
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* Their creation depends on the chip configuration which is determined during
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* module load. */
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@ -1722,31 +1753,23 @@ static const struct attribute_group dme1737_fan_group[] = {
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{ .attrs = dme1737_fan6_attr },
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};
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/* The permissions of all of the following attributes are changed to read-
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/* The permissions of the following zone attributes are changed to read-
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* writeable if the chip is *not* locked. Otherwise they stay read-only. */
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static struct attribute *dme1737_misc_chmod_attr[] = {
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/* Temperatures */
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&sensor_dev_attr_temp1_offset.dev_attr.attr,
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&sensor_dev_attr_temp2_offset.dev_attr.attr,
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&sensor_dev_attr_temp3_offset.dev_attr.attr,
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/* Zones */
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&sensor_dev_attr_zone1_auto_point1_temp_hyst.dev_attr.attr,
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static struct attribute *dme1737_zone_chmod_attr[] = {
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&sensor_dev_attr_zone1_auto_point1_temp.dev_attr.attr,
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&sensor_dev_attr_zone1_auto_point2_temp.dev_attr.attr,
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&sensor_dev_attr_zone1_auto_point3_temp.dev_attr.attr,
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&sensor_dev_attr_zone2_auto_point1_temp_hyst.dev_attr.attr,
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&sensor_dev_attr_zone2_auto_point1_temp.dev_attr.attr,
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&sensor_dev_attr_zone2_auto_point2_temp.dev_attr.attr,
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&sensor_dev_attr_zone2_auto_point3_temp.dev_attr.attr,
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&sensor_dev_attr_zone3_auto_point1_temp_hyst.dev_attr.attr,
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&sensor_dev_attr_zone3_auto_point1_temp.dev_attr.attr,
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&sensor_dev_attr_zone3_auto_point2_temp.dev_attr.attr,
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&sensor_dev_attr_zone3_auto_point3_temp.dev_attr.attr,
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NULL
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};
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static const struct attribute_group dme1737_misc_chmod_group = {
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.attrs = dme1737_misc_chmod_attr,
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static const struct attribute_group dme1737_zone_chmod_group = {
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.attrs = dme1737_zone_chmod_attr,
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};
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/* The permissions of the following PWM attributes are changed to read-
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@ -1757,7 +1780,6 @@ static struct attribute *dme1737_pwm1_chmod_attr[] = {
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&sensor_dev_attr_pwm1_enable.dev_attr.attr,
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&sensor_dev_attr_pwm1_ramp_rate.dev_attr.attr,
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&sensor_dev_attr_pwm1_auto_channels_zone.dev_attr.attr,
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&sensor_dev_attr_pwm1_auto_pwm_min.dev_attr.attr,
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&sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr,
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NULL
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};
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@ -1766,7 +1788,6 @@ static struct attribute *dme1737_pwm2_chmod_attr[] = {
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&sensor_dev_attr_pwm2_enable.dev_attr.attr,
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&sensor_dev_attr_pwm2_ramp_rate.dev_attr.attr,
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&sensor_dev_attr_pwm2_auto_channels_zone.dev_attr.attr,
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&sensor_dev_attr_pwm2_auto_pwm_min.dev_attr.attr,
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&sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr,
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NULL
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};
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@ -1775,7 +1796,6 @@ static struct attribute *dme1737_pwm3_chmod_attr[] = {
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&sensor_dev_attr_pwm3_enable.dev_attr.attr,
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&sensor_dev_attr_pwm3_ramp_rate.dev_attr.attr,
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&sensor_dev_attr_pwm3_auto_channels_zone.dev_attr.attr,
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&sensor_dev_attr_pwm3_auto_pwm_min.dev_attr.attr,
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&sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr,
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NULL
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};
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@ -1875,9 +1895,17 @@ static void dme1737_remove_files(struct device *dev)
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if (data->has_pwm & (1 << ix)) {
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sysfs_remove_group(&dev->kobj,
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&dme1737_pwm_group[ix]);
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if (data->type != sch5027 && ix < 3) {
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sysfs_remove_file(&dev->kobj,
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dme1737_pwm_misc_attr[ix]);
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}
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}
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}
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if (data->type != sch5027) {
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sysfs_remove_group(&dev->kobj, &dme1737_misc_group);
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}
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sysfs_remove_group(&dev->kobj, &dme1737_group);
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if (!data->client.driver) {
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@ -1901,6 +1929,13 @@ static int dme1737_create_files(struct device *dev)
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goto exit_remove;
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}
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/* Create misc sysfs attributes */
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if ((data->type != sch5027) &&
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(err = sysfs_create_group(&dev->kobj,
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&dme1737_misc_group))) {
|
||||
goto exit_remove;
|
||||
}
|
||||
|
||||
/* Create fan sysfs attributes */
|
||||
for (ix = 0; ix < ARRAY_SIZE(dme1737_fan_group); ix++) {
|
||||
if (data->has_fan & (1 << ix)) {
|
||||
@ -1918,6 +1953,11 @@ static int dme1737_create_files(struct device *dev)
|
||||
&dme1737_pwm_group[ix]))) {
|
||||
goto exit_remove;
|
||||
}
|
||||
if (data->type != sch5027 && ix < 3 &&
|
||||
(err = sysfs_create_file(&dev->kobj,
|
||||
dme1737_pwm_misc_attr[ix]))) {
|
||||
goto exit_remove;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@ -1927,16 +1967,27 @@ static int dme1737_create_files(struct device *dev)
|
||||
dev_info(dev, "Device is locked. Some attributes "
|
||||
"will be read-only.\n");
|
||||
} else {
|
||||
/* Change permissions of standard sysfs attributes */
|
||||
dme1737_chmod_group(dev, &dme1737_misc_chmod_group,
|
||||
/* Change permissions of zone sysfs attributes */
|
||||
dme1737_chmod_group(dev, &dme1737_zone_chmod_group,
|
||||
S_IRUGO | S_IWUSR);
|
||||
|
||||
/* Change permissions of misc sysfs attributes */
|
||||
if (data->type != sch5027) {
|
||||
dme1737_chmod_group(dev, &dme1737_misc_group,
|
||||
S_IRUGO | S_IWUSR);
|
||||
}
|
||||
|
||||
/* Change permissions of PWM sysfs attributes */
|
||||
for (ix = 0; ix < ARRAY_SIZE(dme1737_pwm_chmod_group); ix++) {
|
||||
if (data->has_pwm & (1 << ix)) {
|
||||
dme1737_chmod_group(dev,
|
||||
&dme1737_pwm_chmod_group[ix],
|
||||
S_IRUGO | S_IWUSR);
|
||||
if (data->type != sch5027 && ix < 3) {
|
||||
dme1737_chmod_file(dev,
|
||||
dme1737_pwm_misc_attr[ix],
|
||||
S_IRUGO | S_IWUSR);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@ -1966,6 +2017,9 @@ static int dme1737_init_device(struct device *dev)
|
||||
int ix;
|
||||
u8 reg;
|
||||
|
||||
/* Point to the right nominal voltages array */
|
||||
data->in_nominal = IN_NOMINAL(data->type);
|
||||
|
||||
data->config = dme1737_read(client, DME1737_REG_CONFIG);
|
||||
/* Inform if part is not monitoring/started */
|
||||
if (!(data->config & 0x01)) {
|
||||
@ -2076,7 +2130,9 @@ static int dme1737_init_device(struct device *dev)
|
||||
data->pwm_acz[2] = 4; /* pwm3 -> zone3 */
|
||||
|
||||
/* Set VRM */
|
||||
data->vrm = vid_which_vrm();
|
||||
if (data->type != sch5027) {
|
||||
data->vrm = vid_which_vrm();
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
@ -2095,9 +2151,10 @@ static int dme1737_i2c_get_features(int sio_cip, struct dme1737_data *data)
|
||||
dme1737_sio_enter(sio_cip);
|
||||
|
||||
/* Check device ID
|
||||
* The DME1737 can return either 0x78 or 0x77 as its device ID. */
|
||||
* The DME1737 can return either 0x78 or 0x77 as its device ID.
|
||||
* The SCH5027 returns 0x89 as its device ID. */
|
||||
reg = force_id ? force_id : dme1737_sio_inb(sio_cip, 0x20);
|
||||
if (!(reg == 0x77 || reg == 0x78)) {
|
||||
if (!(reg == 0x77 || reg == 0x78 || reg == 0x89)) {
|
||||
err = -ENODEV;
|
||||
goto exit;
|
||||
}
|
||||
@ -2166,15 +2223,24 @@ static int dme1737_i2c_detect(struct i2c_adapter *adapter, int address,
|
||||
company = dme1737_read(client, DME1737_REG_COMPANY);
|
||||
verstep = dme1737_read(client, DME1737_REG_VERSTEP);
|
||||
|
||||
if (!((company == DME1737_COMPANY_SMSC) &&
|
||||
((verstep & DME1737_VERSTEP_MASK) == DME1737_VERSTEP))) {
|
||||
if (company == DME1737_COMPANY_SMSC &&
|
||||
(verstep & DME1737_VERSTEP_MASK) == DME1737_VERSTEP) {
|
||||
kind = dme1737;
|
||||
} else if (company == DME1737_COMPANY_SMSC &&
|
||||
verstep == SCH5027_VERSTEP) {
|
||||
kind = sch5027;
|
||||
} else {
|
||||
err = -ENODEV;
|
||||
goto exit_kfree;
|
||||
}
|
||||
}
|
||||
|
||||
kind = dme1737;
|
||||
name = "dme1737";
|
||||
if (kind == sch5027) {
|
||||
name = "sch5027";
|
||||
} else {
|
||||
kind = dme1737;
|
||||
name = "dme1737";
|
||||
}
|
||||
data->type = kind;
|
||||
|
||||
/* Fill in the remaining client fields and put it into the global
|
||||
@ -2187,8 +2253,9 @@ static int dme1737_i2c_detect(struct i2c_adapter *adapter, int address,
|
||||
goto exit_kfree;
|
||||
}
|
||||
|
||||
dev_info(dev, "Found a DME1737 chip at 0x%02x (rev 0x%02x).\n",
|
||||
client->addr, verstep);
|
||||
dev_info(dev, "Found a %s chip at 0x%02x (rev 0x%02x).\n",
|
||||
kind == sch5027 ? "SCH5027" : "DME1737", client->addr,
|
||||
verstep);
|
||||
|
||||
/* Initialize the DME1737 chip */
|
||||
if ((err = dme1737_init_device(dev))) {
|
||||
@ -2371,7 +2438,7 @@ static int __devinit dme1737_isa_probe(struct platform_device *pdev)
|
||||
goto exit_kfree;
|
||||
}
|
||||
}
|
||||
data->type = -1;
|
||||
data->type = sch311x;
|
||||
|
||||
/* Fill in the remaining client fields and initialize the mutex */
|
||||
strlcpy(client->name, "sch311x", I2C_NAME_SIZE);
|
||||
|
||||
Reference in New Issue
Block a user