]> git.sur5r.net Git - groeck-nct6775/blobdiff - nct6775.c
Sync with upstream
[groeck-nct6775] / nct6775.c
index 3272356015af5478fda2d31588cb2056c05156cf..a6f3b73acb154bf4fabe6fe1ce6dbf52fbdfc85f 100644 (file)
--- a/nct6775.c
+++ b/nct6775.c
@@ -38,7 +38,9 @@
  * nct6776f     9      5       3       6+3    0xc330 0xc1    0x5ca3
  * nct6779d    15      5       5       2+6    0xc560 0xc1    0x5ca3
  * nct6791d    15      6       6       2+6    0xc800 0xc1    0x5ca3
- * nct6792d    15      6       6       2+6    0xc911 0xc1    0x5ca3
+ * nct6792d    15      6       6       2+6    0xc910 0xc1    0x5ca3
+ * nct6793d    15      6       6       2+6    0xd120 0xc1    0x5ca3
+ * nct6795d    14      6       6       2+6    0xd350 0xc1    0x5ca3
  *
  * #temp lists the number of monitored temperature sources (first value) plus
  * the number of directly connectable temperature sensors (second value).
 #include <linux/err.h>
 #include <linux/mutex.h>
 #include <linux/acpi.h>
+#include <linux/dmi.h>
 #include <linux/io.h>
 #include "lm75.h"
 #include "compat.h"
 
 #define USE_ALTERNATE
 
-enum kinds { nct6106, nct6775, nct6776, nct6779, nct6791, nct6792 };
+enum kinds { nct6106, nct6775, nct6776, nct6779, nct6791, nct6792, nct6793,
+            nct6795 };
 
 /* used to set data->name = nct6775_device_names[data->sio_kind] */
 static const char * const nct6775_device_names[] = {
@@ -73,6 +77,19 @@ static const char * const nct6775_device_names[] = {
        "nct6779",
        "nct6791",
        "nct6792",
+       "nct6793",
+       "nct6795",
+};
+
+static const char * const nct6775_sio_names[] __initconst = {
+       "NCT6106D",
+       "NCT6775F",
+       "NCT6776D/F",
+       "NCT6779D",
+       "NCT6791D",
+       "NCT6792D",
+       "NCT6793D",
+       "NCT6795D",
 };
 
 static unsigned short force_id;
@@ -92,6 +109,7 @@ MODULE_PARM_DESC(fan_debounce, "Enable debouncing for fan RPM signal");
 #define NCT6775_LD_ACPI                0x0a
 #define NCT6775_LD_HWM         0x0b
 #define NCT6775_LD_VID         0x0d
+#define NCT6775_LD_12          0x12
 
 #define SIO_REG_LDSEL          0x07    /* Logical device select */
 #define SIO_REG_DEVID          0x20    /* Device ID (2 bytes) */
@@ -104,6 +122,8 @@ MODULE_PARM_DESC(fan_debounce, "Enable debouncing for fan RPM signal");
 #define SIO_NCT6779_ID         0xc560
 #define SIO_NCT6791_ID         0xc800
 #define SIO_NCT6792_ID         0xc910
+#define SIO_NCT6793_ID         0xd120
+#define SIO_NCT6795_ID         0xd350
 #define SIO_ID_MASK            0xFFF0
 
 enum pwm_enable { off, manual, thermal_cruise, speed_cruise, sf3, sf4 };
@@ -182,6 +202,8 @@ superio_exit(int ioreg)
 
 #define NUM_FAN                6
 
+#define TEMP_SOURCE_VIRTUAL    0x1f
+
 /* Common and NCT6775 specific data */
 
 /* Voltage min/max registers for nr=7..14 are in bank 5 */
@@ -345,15 +367,31 @@ static const char *const nct6775_temp_label[] = {
        "PCH_DIM3_TEMP"
 };
 
-static const u16 NCT6775_REG_TEMP_ALTERNATE[ARRAY_SIZE(nct6775_temp_label) - 1]
-       = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x661, 0x662, 0x664 };
+#define NCT6775_TEMP_MASK      0x001ffffe
 
-static const u16 NCT6775_REG_TEMP_CRIT[ARRAY_SIZE(nct6775_temp_label) - 1]
-       = { 0, 0, 0, 0, 0xa00, 0xa01, 0xa02, 0xa03, 0xa04, 0xa05, 0xa06,
-           0xa07 };
+static const u16 NCT6775_REG_TEMP_ALTERNATE[32] = {
+       [13] = 0x661,
+       [14] = 0x662,
+       [15] = 0x664,
+};
+
+static const u16 NCT6775_REG_TEMP_CRIT[32] = {
+       [4] = 0xa00,
+       [5] = 0xa01,
+       [6] = 0xa02,
+       [7] = 0xa03,
+       [8] = 0xa04,
+       [9] = 0xa05,
+       [10] = 0xa06,
+       [11] = 0xa07
+};
 
 /* NCT6776 specific data */
 
+/* STEP_UP_TIME and STEP_DOWN_TIME regs are swapped for all chips but NCT6775 */
+#define NCT6776_REG_FAN_STEP_UP_TIME NCT6775_REG_FAN_STEP_DOWN_TIME
+#define NCT6776_REG_FAN_STEP_DOWN_TIME NCT6775_REG_FAN_STEP_UP_TIME
+
 static const s8 NCT6776_ALARM_BITS[] = {
        0, 1, 2, 3, 8, 21, 20, 16,      /* in0.. in7 */
        17, -1, -1, -1, -1, -1, -1,     /* in8..in14 */
@@ -415,11 +453,18 @@ static const char *const nct6776_temp_label[] = {
        "BYTE_TEMP"
 };
 
-static const u16 NCT6776_REG_TEMP_ALTERNATE[ARRAY_SIZE(nct6776_temp_label) - 1]
-       = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x401, 0x402, 0x404 };
+#define NCT6776_TEMP_MASK      0x007ffffe
+
+static const u16 NCT6776_REG_TEMP_ALTERNATE[32] = {
+       [14] = 0x401,
+       [15] = 0x402,
+       [16] = 0x404,
+};
 
-static const u16 NCT6776_REG_TEMP_CRIT[ARRAY_SIZE(nct6776_temp_label) - 1]
-       = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x709, 0x70a };
+static const u16 NCT6776_REG_TEMP_CRIT[32] = {
+       [11] = 0x709,
+       [12] = 0x70a,
+};
 
 /* NCT6779 specific data */
 
@@ -498,17 +543,27 @@ static const char *const nct6779_temp_label[] = {
        "PCH_DIM1_TEMP",
        "PCH_DIM2_TEMP",
        "PCH_DIM3_TEMP",
-       "BYTE_TEMP"
+       "BYTE_TEMP",
+       "",
+       "",
+       "",
+       "",
+       "Virtual_TEMP"
 };
 
-static const u16 NCT6779_REG_TEMP_ALTERNATE[ARRAY_SIZE(nct6779_temp_label) - 1]
+#define NCT6779_TEMP_MASK      0x07ffff7e
+#define NCT6791_TEMP_MASK      0x87ffff7e
+
+static const u16 NCT6779_REG_TEMP_ALTERNATE[32]
        = { 0x490, 0x491, 0x492, 0x493, 0x494, 0x495, 0, 0,
            0, 0, 0, 0, 0, 0, 0, 0,
            0, 0x400, 0x401, 0x402, 0x404, 0x405, 0x406, 0x407,
            0x408, 0 };
 
-static const u16 NCT6779_REG_TEMP_CRIT[ARRAY_SIZE(nct6779_temp_label) - 1]
-       = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x709, 0x70a };
+static const u16 NCT6779_REG_TEMP_CRIT[32] = {
+       [15] = 0x709,
+       [16] = 0x70a,
+};
 
 /* NCT6791 specific data */
 
@@ -533,13 +588,124 @@ static const s8 NCT6791_ALARM_BITS[] = {
        4, 5, 13, -1, -1, -1,           /* temp1..temp6 */
        12, 9 };                        /* intrusion0, intrusion1 */
 
-/* NCT6792 specific data */
+/* NCT6792/NCT6793 specific data */
 
 static const u16 NCT6792_REG_TEMP_MON[] = {
        0x73, 0x75, 0x77, 0x79, 0x7b, 0x7d };
 static const u16 NCT6792_REG_BEEP[NUM_REG_BEEP] = {
        0xb2, 0xb3, 0xb4, 0xb5, 0xbf };
 
+static const char *const nct6792_temp_label[] = {
+       "",
+       "SYSTIN",
+       "CPUTIN",
+       "AUXTIN0",
+       "AUXTIN1",
+       "AUXTIN2",
+       "AUXTIN3",
+       "",
+       "SMBUSMASTER 0",
+       "SMBUSMASTER 1",
+       "SMBUSMASTER 2",
+       "SMBUSMASTER 3",
+       "SMBUSMASTER 4",
+       "SMBUSMASTER 5",
+       "SMBUSMASTER 6",
+       "SMBUSMASTER 7",
+       "PECI Agent 0",
+       "PECI Agent 1",
+       "PCH_CHIP_CPU_MAX_TEMP",
+       "PCH_CHIP_TEMP",
+       "PCH_CPU_TEMP",
+       "PCH_MCH_TEMP",
+       "PCH_DIM0_TEMP",
+       "PCH_DIM1_TEMP",
+       "PCH_DIM2_TEMP",
+       "PCH_DIM3_TEMP",
+       "BYTE_TEMP",
+       "PECI Agent 0 Calibration",
+       "PECI Agent 1 Calibration",
+       "",
+       "",
+       "Virtual_TEMP"
+};
+
+#define NCT6792_TEMP_MASK      0x9fffff7e
+
+static const char *const nct6793_temp_label[] = {
+       "",
+       "SYSTIN",
+       "CPUTIN",
+       "AUXTIN0",
+       "AUXTIN1",
+       "AUXTIN2",
+       "AUXTIN3",
+       "",
+       "SMBUSMASTER 0",
+       "SMBUSMASTER 1",
+       "",
+       "",
+       "",
+       "",
+       "",
+       "",
+       "PECI Agent 0",
+       "PECI Agent 1",
+       "PCH_CHIP_CPU_MAX_TEMP",
+       "PCH_CHIP_TEMP",
+       "PCH_CPU_TEMP",
+       "PCH_MCH_TEMP",
+       "Agent0 Dimm0 ",
+       "Agent0 Dimm1",
+       "Agent1 Dimm0",
+       "Agent1 Dimm1",
+       "BYTE_TEMP0",
+       "BYTE_TEMP1",
+       "PECI Agent 0 Calibration",
+       "PECI Agent 1 Calibration",
+       "",
+       "Virtual_TEMP"
+};
+
+#define NCT6793_TEMP_MASK      0xbfff037e
+
+static const char *const nct6795_temp_label[] = {
+       "",
+       "SYSTIN",
+       "CPUTIN",
+       "AUXTIN0",
+       "AUXTIN1",
+       "AUXTIN2",
+       "AUXTIN3",
+       "",
+       "SMBUSMASTER 0",
+       "SMBUSMASTER 1",
+       "SMBUSMASTER 2",
+       "SMBUSMASTER 3",
+       "SMBUSMASTER 4",
+       "SMBUSMASTER 5",
+       "SMBUSMASTER 6",
+       "SMBUSMASTER 7",
+       "PECI Agent 0",
+       "PECI Agent 1",
+       "PCH_CHIP_CPU_MAX_TEMP",
+       "PCH_CHIP_TEMP",
+       "PCH_CPU_TEMP",
+       "PCH_MCH_TEMP",
+       "PCH_DIM0_TEMP",
+       "PCH_DIM1_TEMP",
+       "PCH_DIM2_TEMP",
+       "PCH_DIM3_TEMP",
+       "BYTE_TEMP0",
+       "BYTE_TEMP1",
+       "PECI Agent 0 Calibration",
+       "PECI Agent 1 Calibration",
+       "",
+       "Virtual_TEMP"
+};
+
+#define NCT6795_TEMP_MASK      0xbfffff7e
+
 /* NCT6102D/NCT6106D specific data */
 
 #define NCT6106_REG_VBAT       0x318
@@ -634,11 +800,16 @@ static const s8 NCT6106_BEEP_BITS[] = {
        34, -1                          /* intrusion0, intrusion1 */
 };
 
-static const u16 NCT6106_REG_TEMP_ALTERNATE[ARRAY_SIZE(nct6776_temp_label) - 1]
-       = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x51, 0x52, 0x54 };
+static const u16 NCT6106_REG_TEMP_ALTERNATE[32] = {
+       [14] = 0x51,
+       [15] = 0x52,
+       [16] = 0x54,
+};
 
-static const u16 NCT6106_REG_TEMP_CRIT[ARRAY_SIZE(nct6776_temp_label) - 1]
-       = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x204, 0x205 };
+static const u16 NCT6106_REG_TEMP_CRIT[32] = {
+       [11] = 0x204,
+       [12] = 0x205,
+};
 
 static enum pwm_enable reg_to_pwm_enable(int pwm, int mode)
 {
@@ -757,7 +928,7 @@ struct nct6775_data {
        u8 temp_src[NUM_TEMP];
        u16 reg_temp_config[NUM_TEMP];
        const char * const *temp_label;
-       int temp_label_num;
+       u32 temp_mask;
 
        u16 REG_CONFIG;
        u16 REG_VBAT;
@@ -885,12 +1056,12 @@ struct nct6775_data {
        u16 have_temp;
        u16 have_temp_fixed;
        u16 have_in;
-#ifdef CONFIG_PM
+
        /* Remember extra register values over suspend/resume */
        u8 vbat;
        u8 fandiv1;
        u8 fandiv2;
-#endif
+       u8 sio_reg_enable;
 };
 
 struct nct6775_sio_data {
@@ -954,7 +1125,8 @@ struct sensor_template_group {
 };
 
 static struct attribute_group *
-nct6775_create_attr_group(struct device *dev, struct sensor_template_group *tg,
+nct6775_create_attr_group(struct device *dev,
+                         const struct sensor_template_group *tg,
                          int repeat)
 {
        struct attribute_group *group;
@@ -999,6 +1171,7 @@ nct6775_create_attr_group(struct device *dev, struct sensor_template_group *tg,
                                 (*t)->dev_attr.attr.name, tg->base + i);
                        if ((*t)->s2) {
                                a2 = &su->u.a2;
+                               sysfs_attr_init(&a2->dev_attr.attr);
                                a2->dev_attr.attr.name = su->name;
                                a2->nr = (*t)->u.s.nr + i;
                                a2->index = (*t)->u.s.index;
@@ -1009,6 +1182,7 @@ nct6775_create_attr_group(struct device *dev, struct sensor_template_group *tg,
                                *attrs = &a2->dev_attr.attr;
                        } else {
                                a = &su->u.a1;
+                               sysfs_attr_init(&a->dev_attr.attr);
                                a->dev_attr.attr.name = su->name;
                                a->index = (*t)->u.index + i;
                                a->dev_attr.attr.mode =
@@ -1058,6 +1232,8 @@ static bool is_word_sized(struct nct6775_data *data, u16 reg)
        case nct6779:
        case nct6791:
        case nct6792:
+       case nct6793:
+       case nct6795:
                return reg == 0x150 || reg == 0x153 || reg == 0x155 ||
                  ((reg & 0xfff0) == 0x4b0 && (reg & 0x000f) < 0x0b) ||
                  reg == 0x402 ||
@@ -1409,6 +1585,8 @@ static void nct6775_update_pwm_limits(struct device *dev)
                case nct6779:
                case nct6791:
                case nct6792:
+               case nct6793:
+               case nct6795:
                        reg = nct6775_read_value(data,
                                        data->REG_CRITICAL_PWM_ENABLE[i]);
                        if (reg & data->CRITICAL_PWM_ENABLE_MASK)
@@ -1732,7 +1910,7 @@ static struct sensor_device_template *nct6775_attributes_in_template[] = {
        NULL
 };
 
-static struct sensor_template_group nct6775_in_template_group = {
+static const struct sensor_template_group nct6775_in_template_group = {
        .templates = nct6775_attributes_in_template,
        .is_visible = nct6775_in_is_visible,
 };
@@ -1951,7 +2129,7 @@ static struct sensor_device_template *nct6775_attributes_fan_template[] = {
        NULL
 };
 
-static struct sensor_template_group nct6775_fan_template_group = {
+static const struct sensor_template_group nct6775_fan_template_group = {
        .templates = nct6775_attributes_fan_template,
        .is_visible = nct6775_fan_is_visible,
        .base = 1,
@@ -2098,6 +2276,9 @@ static umode_t nct6775_temp_is_visible(struct kobject *kobj,
        if (!(data->have_temp & (1 << temp)))
                return 0;
 
+       if (nr == 1 && !data->temp_label)
+               return 0;
+
        if (nr == 2 && find_temp_source(data, temp, data->num_temp_alarms) < 0)
                return 0;                               /* alarm */
 
@@ -2160,7 +2341,7 @@ static struct sensor_device_template *nct6775_attributes_temp_template[] = {
        NULL
 };
 
-static struct sensor_template_group nct6775_temp_template_group = {
+static const struct sensor_template_group nct6775_temp_template_group = {
        .templates = nct6775_attributes_temp_template,
        .is_visible = nct6775_temp_is_visible,
        .base = 1,
@@ -2836,6 +3017,8 @@ store_auto_pwm(struct device *dev, struct device_attribute *attr,
                case nct6779:
                case nct6791:
                case nct6792:
+               case nct6793:
+               case nct6795:
                        nct6775_write_value(data, data->REG_CRITICAL_PWM[nr],
                                            val);
                        reg = nct6775_read_value(data,
@@ -3033,7 +3216,7 @@ static struct sensor_device_template *nct6775_attributes_pwm_template[] = {
        NULL
 };
 
-static struct sensor_template_group nct6775_pwm_template_group = {
+static const struct sensor_template_group nct6775_pwm_template_group = {
        .templates = nct6775_attributes_pwm_template,
        .is_visible = nct6775_pwm_is_visible,
        .base = 1,
@@ -3197,6 +3380,10 @@ nct6775_check_fan_inputs(struct nct6775_data *data)
        int sioreg = data->sioreg;
        int regval;
 
+       /* Store SIO_REG_ENABLE for use during resume */
+       superio_select(sioreg, NCT6775_LD_HWM);
+       data->sio_reg_enable = superio_inb(sioreg, SIO_REG_ENABLE);
+
        /* fan4 and fan5 share some pins with the GPIO and serial flash */
        if (data->kind == nct6775) {
                regval = superio_inb(sioreg, 0x2c);
@@ -3214,21 +3401,38 @@ nct6775_check_fan_inputs(struct nct6775_data *data)
                pwm6pin = false;
        } else if (data->kind == nct6776) {
                bool gpok = superio_inb(sioreg, 0x27) & 0x80;
+               const char *board_vendor, *board_name;
 
-               superio_select(sioreg, NCT6775_LD_HWM);
-               regval = superio_inb(sioreg, SIO_REG_ENABLE);
+               board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR);
+               board_name = dmi_get_system_info(DMI_BOARD_NAME);
 
-               if (regval & 0x80)
+               if (board_name && board_vendor &&
+                   !strcmp(board_vendor, "ASRock")) {
+                       /*
+                        * Auxiliary fan monitoring is not enabled on ASRock
+                        * Z77 Pro4-M if booted in UEFI Ultra-FastBoot mode.
+                        * Observed with BIOS version 2.00.
+                        */
+                       if (!strcmp(board_name, "Z77 Pro4-M")) {
+                               if ((data->sio_reg_enable & 0xe0) != 0xe0) {
+                                       data->sio_reg_enable |= 0xe0;
+                                       superio_outb(sioreg, SIO_REG_ENABLE,
+                                                    data->sio_reg_enable);
+                               }
+                       }
+               }
+
+               if (data->sio_reg_enable & 0x80)
                        fan3pin = gpok;
                else
                        fan3pin = !(superio_inb(sioreg, 0x24) & 0x40);
 
-               if (regval & 0x40)
+               if (data->sio_reg_enable & 0x40)
                        fan4pin = gpok;
                else
                        fan4pin = superio_inb(sioreg, 0x1C) & 0x01;
 
-               if (regval & 0x20)
+               if (data->sio_reg_enable & 0x20)
                        fan5pin = gpok;
                else
                        fan5pin = superio_inb(sioreg, 0x1C) & 0x02;
@@ -3251,7 +3455,9 @@ nct6775_check_fan_inputs(struct nct6775_data *data)
                pwm4pin = false;
                pwm5pin = false;
                pwm6pin = false;
-       } else {        /* NCT6779D, NCT6791D, or NCT6792D */
+       } else {        /* NCT6779D, NCT6791D, NCT6792D, NCT6793D, NCT6795D */
+               int regval_1b, regval_2a, regval_eb;
+
                regval = superio_inb(sioreg, 0x1c);
 
                fan3pin = !(regval & (1 << 5));
@@ -3262,16 +3468,44 @@ nct6775_check_fan_inputs(struct nct6775_data *data)
                pwm4pin = !(regval & (1 << 1));
                pwm5pin = !(regval & (1 << 2));
 
-               fan4min = fan4pin;
-
-               if (data->kind == nct6791 || data->kind == nct6792) {
-                       regval = superio_inb(sioreg, 0x2d);
-                       fan6pin = (regval & (1 << 1));
-                       pwm6pin = (regval & (1 << 0));
-               } else {        /* NCT6779D */
+               regval = superio_inb(sioreg, 0x2d);
+               switch (data->kind) {
+               case nct6791:
+               case nct6792:
+                       fan6pin = regval & (1 << 1);
+                       pwm6pin = regval & (1 << 0);
+                       break;
+               case nct6793:
+               case nct6795:
+                       regval_1b = superio_inb(sioreg, 0x1b);
+                       regval_2a = superio_inb(sioreg, 0x2a);
+
+                       if (!pwm5pin)
+                               pwm5pin = regval & (1 << 7);
+                       fan6pin = regval & (1 << 1);
+                       pwm6pin = regval & (1 << 0);
+                       if (!fan5pin)
+                               fan5pin = regval_1b & (1 << 5);
+
+                       superio_select(sioreg, NCT6775_LD_12);
+                       regval_eb = superio_inb(sioreg, 0xeb);
+                       if (!fan5pin)
+                               fan5pin = regval_eb & (1 << 5);
+                       if (!pwm5pin)
+                               pwm5pin = (regval_eb & (1 << 4)) &&
+                                          !(regval_2a & (1 << 0));
+                       if (!fan6pin)
+                               fan6pin = regval_eb & (1 << 3);
+                       if (!pwm6pin)
+                               pwm6pin = regval_eb & (1 << 2);
+                       break;
+               default:        /* NCT6779D */
                        fan6pin = false;
                        pwm6pin = false;
+                       break;
                }
+
+               fan4min = fan4pin;
        }
 
        /* fan 1 and 2 (0x03) are always present */
@@ -3298,8 +3532,7 @@ static void add_temp_sensors(struct nct6775_data *data, const u16 *regp,
                src &= 0x1f;
                if (!src || (*mask & (1 << src)))
                        continue;
-               if (src >= data->temp_label_num ||
-                   !strlen(data->temp_label[src]))
+               if (!(data->temp_mask & BIT(src)))
                        continue;
 
                index = __ffs(*available);
@@ -3357,7 +3590,7 @@ static int nct6775_probe(struct platform_device *pdev)
                data->fan_from_reg_min = fan_from_reg13;
 
                data->temp_label = nct6776_temp_label;
-               data->temp_label_num = ARRAY_SIZE(nct6776_temp_label);
+               data->temp_mask = NCT6776_TEMP_MASK;
 
                data->REG_VBAT = NCT6106_REG_VBAT;
                data->REG_DIODE = NCT6106_REG_DIODE;
@@ -3435,7 +3668,7 @@ static int nct6775_probe(struct platform_device *pdev)
                data->speed_tolerance_limit = 15;
 
                data->temp_label = nct6775_temp_label;
-               data->temp_label_num = ARRAY_SIZE(nct6775_temp_label);
+               data->temp_mask = NCT6775_TEMP_MASK;
 
                data->REG_CONFIG = NCT6775_REG_CONFIG;
                data->REG_VBAT = NCT6775_REG_VBAT;
@@ -3507,7 +3740,7 @@ static int nct6775_probe(struct platform_device *pdev)
                data->speed_tolerance_limit = 63;
 
                data->temp_label = nct6776_temp_label;
-               data->temp_label_num = ARRAY_SIZE(nct6776_temp_label);
+               data->temp_mask = NCT6776_TEMP_MASK;
 
                data->REG_CONFIG = NCT6775_REG_CONFIG;
                data->REG_VBAT = NCT6775_REG_VBAT;
@@ -3523,8 +3756,8 @@ static int nct6775_probe(struct platform_device *pdev)
                data->REG_FAN_PULSES = NCT6776_REG_FAN_PULSES;
                data->FAN_PULSE_SHIFT = NCT6775_FAN_PULSE_SHIFT;
                data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
-               data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME;
-               data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME;
+               data->REG_FAN_TIME[1] = NCT6776_REG_FAN_STEP_UP_TIME;
+               data->REG_FAN_TIME[2] = NCT6776_REG_FAN_STEP_DOWN_TIME;
                data->REG_TOLERANCE_H = NCT6776_REG_TOLERANCE_H;
                data->REG_PWM[0] = NCT6775_REG_PWM;
                data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
@@ -3579,7 +3812,7 @@ static int nct6775_probe(struct platform_device *pdev)
                data->speed_tolerance_limit = 63;
 
                data->temp_label = nct6779_temp_label;
-               data->temp_label_num = ARRAY_SIZE(nct6779_temp_label);
+               data->temp_mask = NCT6779_TEMP_MASK;
 
                data->REG_CONFIG = NCT6775_REG_CONFIG;
                data->REG_VBAT = NCT6775_REG_VBAT;
@@ -3595,8 +3828,8 @@ static int nct6775_probe(struct platform_device *pdev)
                data->REG_FAN_PULSES = NCT6779_REG_FAN_PULSES;
                data->FAN_PULSE_SHIFT = NCT6775_FAN_PULSE_SHIFT;
                data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
-               data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME;
-               data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME;
+               data->REG_FAN_TIME[1] = NCT6776_REG_FAN_STEP_UP_TIME;
+               data->REG_FAN_TIME[2] = NCT6776_REG_FAN_STEP_DOWN_TIME;
                data->REG_TOLERANCE_H = NCT6776_REG_TOLERANCE_H;
                data->REG_PWM[0] = NCT6775_REG_PWM;
                data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
@@ -3638,6 +3871,8 @@ static int nct6775_probe(struct platform_device *pdev)
                break;
        case nct6791:
        case nct6792:
+       case nct6793:
+       case nct6795:
                data->in_num = 15;
                data->pwm_num = 6;
                data->auto_pwm_num = 4;
@@ -3655,8 +3890,25 @@ static int nct6775_probe(struct platform_device *pdev)
                data->tolerance_mask = 0x07;
                data->speed_tolerance_limit = 63;
 
-               data->temp_label = nct6779_temp_label;
-               data->temp_label_num = ARRAY_SIZE(nct6779_temp_label);
+               switch (data->kind) {
+               default:
+               case nct6791:
+                       data->temp_label = nct6779_temp_label;
+                       data->temp_mask = NCT6791_TEMP_MASK;
+                       break;
+               case nct6792:
+                       data->temp_label = nct6792_temp_label;
+                       data->temp_mask = NCT6792_TEMP_MASK;
+                       break;
+               case nct6793:
+                       data->temp_label = nct6793_temp_label;
+                       data->temp_mask = NCT6793_TEMP_MASK;
+                       break;
+               case nct6795:
+                       data->temp_label = nct6795_temp_label;
+                       data->temp_mask = NCT6795_TEMP_MASK;
+                       break;
+               }
 
                data->REG_CONFIG = NCT6775_REG_CONFIG;
                data->REG_VBAT = NCT6775_REG_VBAT;
@@ -3672,8 +3924,8 @@ static int nct6775_probe(struct platform_device *pdev)
                data->REG_FAN_PULSES = NCT6779_REG_FAN_PULSES;
                data->FAN_PULSE_SHIFT = NCT6775_FAN_PULSE_SHIFT;
                data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
-               data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME;
-               data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME;
+               data->REG_FAN_TIME[1] = NCT6776_REG_FAN_STEP_UP_TIME;
+               data->REG_FAN_TIME[2] = NCT6776_REG_FAN_STEP_DOWN_TIME;
                data->REG_TOLERANCE_H = NCT6776_REG_TOLERANCE_H;
                data->REG_PWM[0] = NCT6775_REG_PWM;
                data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
@@ -3765,8 +4017,7 @@ static int nct6775_probe(struct platform_device *pdev)
                if (!src || (mask & (1 << src)))
                        continue;
 
-               if (src >= data->temp_label_num ||
-                   !strlen(data->temp_label[src])) {
+               if (!(data->temp_mask & BIT(src))) {
                        dev_info(dev,
                                 "Invalid temperature source %d at index %d, source register 0x%x, temp register 0x%x\n",
                                 src, i, data->REG_TEMP_SOURCE[i], reg_temp[i]);
@@ -3823,11 +4074,10 @@ static int nct6775_probe(struct platform_device *pdev)
                        continue;
 
                src = nct6775_read_value(data, data->REG_TEMP_SEL[i]) & 0x1f;
-               if (!src || (mask & (1 << src)))
+               if (!src)
                        continue;
 
-               if (src >= data->temp_label_num ||
-                   !strlen(data->temp_label[src])) {
+               if (!(data->temp_mask & BIT(src))) {
                        dev_info(dev,
                                 "Invalid temperature source %d at index %d, source register 0x%x, temp register 0x%x\n",
                                 src, i, data->REG_TEMP_SEL[i],
@@ -3835,7 +4085,16 @@ static int nct6775_probe(struct platform_device *pdev)
                        continue;
                }
 
-               mask |= 1 << src;
+               /*
+                * For virtual temperature sources, the 'virtual' temperature
+                * for each fan reflects a different temperature, and there
+                * are no duplicates.
+                */
+               if (src != TEMP_SOURCE_VIRTUAL) {
+                       if (mask & (1 << src))
+                               continue;
+                       mask |= 1 << src;
+               }
 
                /* Use fixed index for SYSTIN(1), CPUTIN(2), AUXTIN(3) */
                if (src <= data->temp_fixed_num) {
@@ -3865,7 +4124,9 @@ static int nct6775_probe(struct platform_device *pdev)
         * The temperature is already monitored if the respective bit in <mask>
         * is set.
         */
-       for (i = 0; i < data->temp_label_num - 1; i++) {
+       for (i = 0; i < 32; i++) {
+               if (!(data->temp_mask & BIT(i)))
+                       continue;
                if (!reg_temp_alternate[i])
                        continue;
                if (mask & (1 << (i + 1)))
@@ -3913,6 +4174,8 @@ static int nct6775_probe(struct platform_device *pdev)
        case nct6779:
        case nct6791:
        case nct6792:
+       case nct6793:
+       case nct6795:
                break;
        }
 
@@ -3945,6 +4208,8 @@ static int nct6775_probe(struct platform_device *pdev)
                        break;
                case nct6791:
                case nct6792:
+               case nct6793:
+               case nct6795:
                        tmp |= 0x7e;
                        break;
                }
@@ -4031,8 +4296,7 @@ static void nct6791_enable_io_mapping(int sioaddr)
        }
 }
 
-#ifdef CONFIG_PM
-static int nct6775_suspend(struct device *dev)
+static int __maybe_unused nct6775_suspend(struct device *dev)
 {
        struct nct6775_data *data = nct6775_update_device(dev);
 
@@ -4047,22 +4311,30 @@ static int nct6775_suspend(struct device *dev)
        return 0;
 }
 
-static int nct6775_resume(struct device *dev)
+static int __maybe_unused nct6775_resume(struct device *dev)
 {
        struct nct6775_data *data = dev_get_drvdata(dev);
+       int sioreg = data->sioreg;
        int i, j, err = 0;
+       u8 reg;
 
        mutex_lock(&data->update_lock);
        data->bank = 0xff;              /* Force initial bank selection */
 
-       if (data->kind == nct6791 || data->kind == nct6792) {
-               err = superio_enter(data->sioreg);
-               if (err)
-                       goto abort;
+       err = superio_enter(sioreg);
+       if (err)
+               goto abort;
 
-               nct6791_enable_io_mapping(data->sioreg);
-               superio_exit(data->sioreg);
-       }
+       superio_select(sioreg, NCT6775_LD_HWM);
+       reg = superio_inb(sioreg, SIO_REG_ENABLE);
+       if (reg != data->sio_reg_enable)
+               superio_outb(sioreg, SIO_REG_ENABLE, data->sio_reg_enable);
+
+       if (data->kind == nct6791 || data->kind == nct6792 ||
+           data->kind == nct6793 || data->kind == nct6795)
+               nct6791_enable_io_mapping(sioreg);
+
+       superio_exit(sioreg);
 
        /* Restore limits */
        for (i = 0; i < data->in_num; i++) {
@@ -4108,23 +4380,13 @@ abort:
        return err;
 }
 
-static const struct dev_pm_ops nct6775_dev_pm_ops = {
-       .suspend = nct6775_suspend,
-       .resume = nct6775_resume,
-       .freeze = nct6775_suspend,
-       .restore = nct6775_resume,
-};
-
-#define NCT6775_DEV_PM_OPS     (&nct6775_dev_pm_ops)
-#else
-#define NCT6775_DEV_PM_OPS     NULL
-#endif /* CONFIG_PM */
+static SIMPLE_DEV_PM_OPS(nct6775_dev_pm_ops, nct6775_suspend, nct6775_resume);
 
 static struct platform_driver nct6775_driver = {
        .driver = {
                .owner  = THIS_MODULE,
                .name   = DRVNAME,
-               .pm     = NCT6775_DEV_PM_OPS,
+               .pm     = &nct6775_dev_pm_ops,
        },
        .probe          = nct6775_probe,
 #if LINUX_VERSION_CODE < KERNEL_VERSION(3, 13, 0)
@@ -4132,15 +4394,6 @@ static struct platform_driver nct6775_driver = {
 #endif
 };
 
-static const char * const nct6775_sio_names[] __initconst = {
-       "NCT6106D",
-       "NCT6775F",
-       "NCT6776D/F",
-       "NCT6779D",
-       "NCT6791D",
-       "NCT6792D",
-};
-
 /* nct6775_find() looks for a '627 in the Super-I/O config space */
 static int __init nct6775_find(int sioaddr, struct nct6775_sio_data *sio_data)
 {
@@ -4152,11 +4405,11 @@ static int __init nct6775_find(int sioaddr, struct nct6775_sio_data *sio_data)
        if (err)
                return err;
 
-       if (force_id)
+       val = (superio_inb(sioaddr, SIO_REG_DEVID) << 8) |
+               superio_inb(sioaddr, SIO_REG_DEVID + 1);
+       if (force_id && val != 0xffff)
                val = force_id;
-       else
-               val = (superio_inb(sioaddr, SIO_REG_DEVID) << 8)
-                   | superio_inb(sioaddr, SIO_REG_DEVID + 1);
+
        switch (val & SIO_ID_MASK) {
        case SIO_NCT6106_ID:
                sio_data->kind = nct6106;
@@ -4176,6 +4429,12 @@ static int __init nct6775_find(int sioaddr, struct nct6775_sio_data *sio_data)
        case SIO_NCT6792_ID:
                sio_data->kind = nct6792;
                break;
+       case SIO_NCT6793_ID:
+               sio_data->kind = nct6793;
+               break;
+       case SIO_NCT6795_ID:
+               sio_data->kind = nct6795;
+               break;
        default:
                if (val != 0xffff)
                        pr_debug("unsupported chip ID: 0x%04x\n", val);
@@ -4201,7 +4460,8 @@ static int __init nct6775_find(int sioaddr, struct nct6775_sio_data *sio_data)
                superio_outb(sioaddr, SIO_REG_ENABLE, val | 0x01);
        }
 
-       if (sio_data->kind == nct6791 || sio_data->kind == nct6792)
+       if (sio_data->kind == nct6791 || sio_data->kind == nct6792 ||
+           sio_data->kind == nct6793 || sio_data->kind == nct6795)
                nct6791_enable_io_mapping(sioaddr);
 
        superio_exit(sioaddr);
@@ -4311,7 +4571,7 @@ static void __exit sensors_nct6775_exit(void)
 }
 
 MODULE_AUTHOR("Guenter Roeck <linux@roeck-us.net>");
-MODULE_DESCRIPTION("NCT6106D/NCT6775F/NCT6776F/NCT6779D/NCT6791D/NCT6792D driver");
+MODULE_DESCRIPTION("Driver for NCT6775F and compatible chips");
 MODULE_LICENSE("GPL");
 
 module_init(sensors_nct6775_init);