hwmon: (it87) Support up to 6 temperature sensors on IT8620E
Add support for the additional temperature sensors on IT8620E. Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>hifive-unleashed-5.1
Guenter Roeck
parent
8638d0afb4
commit
cc18da79d9
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@ -219,7 +219,7 @@ static bool fix_pwm_polarity;
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#define IT87_REG_FAN_DIV 0x0b
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#define IT87_REG_FAN_16BIT 0x0c
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/* Monitors: 9 voltage (0 to 7, battery), 3 temp (1 to 3), 3 fan (1 to 3) */
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/* Monitors: 9 voltage (0 to 7, battery), 6 temp (1 to 6), 3 fan (1 to 3) */
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static const u8 IT87_REG_FAN[] = { 0x0d, 0x0e, 0x0f, 0x80, 0x82, 0x4c };
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static const u8 IT87_REG_FAN_MIN[] = { 0x10, 0x11, 0x12, 0x84, 0x86, 0x4e };
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@ -252,10 +252,12 @@ static const u8 IT87_REG_PWM_DUTY[] = { 0x63, 0x6b, 0x73, 0x7b, 0xa3, 0xab };
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#define IT87_REG_AUTO_TEMP(nr, i) (0x60 + (nr) * 8 + (i))
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#define IT87_REG_AUTO_PWM(nr, i) (0x65 + (nr) * 8 + (i))
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#define IT87_REG_TEMP456_ENABLE 0x77
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struct it87_devices {
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const char *name;
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const char * const suffix;
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u16 features;
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u32 features;
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u8 peci_mask;
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u8 old_peci_mask;
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};
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@ -276,6 +278,7 @@ struct it87_devices {
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#define FEAT_AVCC3 (1 << 13) /* Chip supports in9/AVCC3 */
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#define FEAT_SIX_PWM (1 << 14) /* Chip supports 6 pwm chn */
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#define FEAT_PWM_FREQ2 (1 << 15) /* Separate pwm freq 2 */
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#define FEAT_SIX_TEMP (1 << 16) /* Up to 6 temp sensors */
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static const struct it87_devices it87_devices[] = {
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[it87] = {
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@ -412,7 +415,8 @@ static const struct it87_devices it87_devices[] = {
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.suffix = "E",
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.features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS
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| FEAT_TEMP_OFFSET | FEAT_TEMP_PECI | FEAT_SIX_FANS
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| FEAT_IN7_INTERNAL | FEAT_SIX_PWM | FEAT_PWM_FREQ2,
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| FEAT_IN7_INTERNAL | FEAT_SIX_PWM | FEAT_PWM_FREQ2
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| FEAT_SIX_TEMP,
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.peci_mask = 0x07,
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},
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};
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@ -437,6 +441,7 @@ static const struct it87_devices it87_devices[] = {
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#define has_avcc3(data) ((data)->features & FEAT_AVCC3)
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#define has_six_pwm(data) ((data)->features & FEAT_SIX_PWM)
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#define has_pwm_freq2(data) ((data)->features & FEAT_PWM_FREQ2)
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#define has_six_temp(data) ((data)->features & FEAT_SIX_TEMP)
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struct it87_sio_data {
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enum chips type;
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@ -477,7 +482,7 @@ struct it87_data {
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u8 has_fan; /* Bitfield, fans enabled */
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u16 fan[6][2]; /* Register values, [nr][0]=fan, [1]=min */
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u8 has_temp; /* Bitfield, temp sensors enabled */
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s8 temp[3][4]; /* [nr][0]=temp, [1]=min, [2]=max, [3]=offset */
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s8 temp[6][4]; /* [nr][0]=temp, [1]=min, [2]=max, [3]=offset */
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u8 sensor; /* Register value (IT87_REG_TEMP_ENABLE) */
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u8 extra; /* Register value (IT87_REG_TEMP_EXTRA) */
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u8 fan_div[3]; /* Register encoding, shifted right */
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@ -704,11 +709,16 @@ static struct it87_data *it87_update_device(struct device *dev)
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IT87_REG_FANX_MIN[i]) << 8;
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}
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}
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for (i = 0; i < 3; i++) {
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for (i = 0; i < 6; i++) {
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if (!(data->has_temp & (1 << i)))
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continue;
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data->temp[i][0] =
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it87_read_value(data, IT87_REG_TEMP(i));
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/* No limits/offset for additional sensors */
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if (i >= 3)
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continue;
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data->temp[i][1] =
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it87_read_value(data, IT87_REG_TEMP_LOW(i));
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data->temp[i][2] =
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@ -848,7 +858,7 @@ static SENSOR_DEVICE_ATTR_2(in7_max, S_IRUGO | S_IWUSR, show_in, set_in,
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static SENSOR_DEVICE_ATTR_2(in8_input, S_IRUGO, show_in, NULL, 8, 0);
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static SENSOR_DEVICE_ATTR_2(in9_input, S_IRUGO, show_in, NULL, 9, 0);
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/* 3 temperatures */
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/* Up to 6 temperatures */
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static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
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char *buf)
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{
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@ -921,6 +931,9 @@ static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp, set_temp,
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2, 2);
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static SENSOR_DEVICE_ATTR_2(temp3_offset, S_IRUGO | S_IWUSR, show_temp,
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set_temp, 2, 3);
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static SENSOR_DEVICE_ATTR_2(temp4_input, S_IRUGO, show_temp, NULL, 3, 0);
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static SENSOR_DEVICE_ATTR_2(temp5_input, S_IRUGO, show_temp, NULL, 4, 0);
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static SENSOR_DEVICE_ATTR_2(temp6_input, S_IRUGO, show_temp, NULL, 5, 0);
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static ssize_t show_temp_type(struct device *dev, struct device_attribute *attr,
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char *buf)
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@ -1828,6 +1841,11 @@ static umode_t it87_temp_is_visible(struct kobject *kobj,
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int i = index / 7; /* temperature index */
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int a = index % 7; /* attribute index */
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if (index >= 21) {
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i = index - 21 + 3;
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a = 0;
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}
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if (!(data->has_temp & (1 << i)))
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return 0;
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@ -1849,7 +1867,7 @@ static struct attribute *it87_attributes_temp[] = {
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&sensor_dev_attr_temp1_offset.dev_attr.attr, /* 5 */
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&sensor_dev_attr_temp1_beep.dev_attr.attr, /* 6 */
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&sensor_dev_attr_temp2_input.dev_attr.attr,
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&sensor_dev_attr_temp2_input.dev_attr.attr, /* 7 */
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&sensor_dev_attr_temp2_max.dev_attr.attr,
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&sensor_dev_attr_temp2_min.dev_attr.attr,
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&sensor_dev_attr_temp2_type.dev_attr.attr,
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@ -1857,7 +1875,7 @@ static struct attribute *it87_attributes_temp[] = {
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&sensor_dev_attr_temp2_offset.dev_attr.attr,
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&sensor_dev_attr_temp2_beep.dev_attr.attr,
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&sensor_dev_attr_temp3_input.dev_attr.attr,
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&sensor_dev_attr_temp3_input.dev_attr.attr, /* 14 */
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&sensor_dev_attr_temp3_max.dev_attr.attr,
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&sensor_dev_attr_temp3_min.dev_attr.attr,
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&sensor_dev_attr_temp3_type.dev_attr.attr,
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@ -1865,6 +1883,9 @@ static struct attribute *it87_attributes_temp[] = {
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&sensor_dev_attr_temp3_offset.dev_attr.attr,
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&sensor_dev_attr_temp3_beep.dev_attr.attr,
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&sensor_dev_attr_temp4_input.dev_attr.attr, /* 21 */
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&sensor_dev_attr_temp5_input.dev_attr.attr,
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&sensor_dev_attr_temp6_input.dev_attr.attr,
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NULL
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};
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@ -2710,6 +2731,17 @@ static int it87_probe(struct platform_device *pdev)
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data->in_internal = sio_data->internal;
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data->has_in = 0x3ff & ~sio_data->skip_in;
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if (has_six_temp(data)) {
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u8 reg = it87_read_value(data, IT87_REG_TEMP456_ENABLE);
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if ((reg & 0x03) >= 0x02)
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data->has_temp |= (1 << 3);
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if (((reg >> 2) & 0x03) >= 0x02)
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data->has_temp |= (1 << 4);
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if (((reg >> 4) & 0x03) >= 0x02)
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data->has_temp |= (1 << 5);
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}
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data->has_beep = !!sio_data->beep_pin;
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/* Initialize the IT87 chip */
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