1 files changed, 60 insertions, 2 deletions

diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c
index d17325db0ea3..3f4ef21010d5 100644
--- a/drivers/hwmon/nct6775.c
+++ b/drivers/hwmon/nct6775.c
@@ -274,6 +274,8 @@ static const u16 NCT6775_FAN_PULSE_SHIFT[] = { 0, 0, 0, 0, 0, 0 };
 static const u16 NCT6775_REG_TEMP[] = {
         0x27, 0x150, 0x250, 0x62b, 0x62c, 0x62d };
 
+static const u16 NCT6775_REG_TEMP_MON[] = { 0x73, 0x75, 0x77 };
+
 static const u16 NCT6775_REG_TEMP_CONFIG[ARRAY_SIZE(NCT6775_REG_TEMP)] = {
         0, 0x152, 0x252, 0x628, 0x629, 0x62A };
 static const u16 NCT6775_REG_TEMP_HYST[ARRAY_SIZE(NCT6775_REG_TEMP)] = {
@@ -454,6 +456,7 @@ static const u16 NCT6779_REG_CRITICAL_PWM[] = {
         0x137, 0x237, 0x337, 0x837, 0x937, 0xa37 };
 
 static const u16 NCT6779_REG_TEMP[] = { 0x27, 0x150 };
+static const u16 NCT6779_REG_TEMP_MON[] = { 0x73, 0x75, 0x77, 0x79, 0x7b };
 static const u16 NCT6779_REG_TEMP_CONFIG[ARRAY_SIZE(NCT6779_REG_TEMP)] = {
         0x18, 0x152 };
 static const u16 NCT6779_REG_TEMP_HYST[ARRAY_SIZE(NCT6779_REG_TEMP)] = {
@@ -534,6 +537,7 @@ static const u16 NCT6106_REG_IN[] = {
         0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x07, 0x08, 0x09 };
 
 static const u16 NCT6106_REG_TEMP[] = { 0x10, 0x11, 0x12, 0x13, 0x14, 0x15 };
+static const u16 NCT6106_REG_TEMP_MON[] = { 0x18, 0x19, 0x1a };
 static const u16 NCT6106_REG_TEMP_HYST[] = {
         0xc3, 0xc7, 0xcb, 0xcf, 0xd3, 0xd7 };
 static const u16 NCT6106_REG_TEMP_OVER[] = {
@@ -3253,9 +3257,9 @@ static int nct6775_probe(struct platform_device *pdev)
         int i, s, err = 0;
         int src, mask, available;
         const u16 *reg_temp, *reg_temp_over, *reg_temp_hyst, *reg_temp_config;
-        const u16 *reg_temp_alternate, *reg_temp_crit;
+        const u16 *reg_temp_mon, *reg_temp_alternate, *reg_temp_crit;
         const u16 *reg_temp_crit_l = NULL, *reg_temp_crit_h = NULL;
-        int num_reg_temp;
+        int num_reg_temp, num_reg_temp_mon;
         u8 cr2a;
         struct attribute_group *group;
         struct device *hwmon_dev;
@@ -3338,7 +3342,9 @@ static int nct6775_probe(struct platform_device *pdev)
                 data->BEEP_BITS = NCT6106_BEEP_BITS;
 
                 reg_temp = NCT6106_REG_TEMP;
+                reg_temp_mon = NCT6106_REG_TEMP_MON;
                 num_reg_temp = ARRAY_SIZE(NCT6106_REG_TEMP);
+                num_reg_temp_mon = ARRAY_SIZE(NCT6106_REG_TEMP_MON);
                 reg_temp_over = NCT6106_REG_TEMP_OVER;
                 reg_temp_hyst = NCT6106_REG_TEMP_HYST;
                 reg_temp_config = NCT6106_REG_TEMP_CONFIG;
@@ -3410,7 +3416,9 @@ static int nct6775_probe(struct platform_device *pdev)
                 data->REG_BEEP = NCT6775_REG_BEEP;
 
                 reg_temp = NCT6775_REG_TEMP;
+                reg_temp_mon = NCT6775_REG_TEMP_MON;
                 num_reg_temp = ARRAY_SIZE(NCT6775_REG_TEMP);
+                num_reg_temp_mon = ARRAY_SIZE(NCT6775_REG_TEMP_MON);
                 reg_temp_over = NCT6775_REG_TEMP_OVER;
                 reg_temp_hyst = NCT6775_REG_TEMP_HYST;
                 reg_temp_config = NCT6775_REG_TEMP_CONFIG;
@@ -3480,7 +3488,9 @@ static int nct6775_probe(struct platform_device *pdev)
                 data->REG_BEEP = NCT6776_REG_BEEP;
 
                 reg_temp = NCT6775_REG_TEMP;
+                reg_temp_mon = NCT6775_REG_TEMP_MON;
                 num_reg_temp = ARRAY_SIZE(NCT6775_REG_TEMP);
+                num_reg_temp_mon = ARRAY_SIZE(NCT6775_REG_TEMP_MON);
                 reg_temp_over = NCT6775_REG_TEMP_OVER;
                 reg_temp_hyst = NCT6775_REG_TEMP_HYST;
                 reg_temp_config = NCT6776_REG_TEMP_CONFIG;
@@ -3554,7 +3564,9 @@ static int nct6775_probe(struct platform_device *pdev)
                 data->REG_BEEP = NCT6776_REG_BEEP;
 
                 reg_temp = NCT6779_REG_TEMP;
+                reg_temp_mon = NCT6779_REG_TEMP_MON;
                 num_reg_temp = ARRAY_SIZE(NCT6779_REG_TEMP);
+                num_reg_temp_mon = ARRAY_SIZE(NCT6779_REG_TEMP_MON);
                 reg_temp_over = NCT6779_REG_TEMP_OVER;
                 reg_temp_hyst = NCT6779_REG_TEMP_HYST;
                 reg_temp_config = NCT6779_REG_TEMP_CONFIG;
@@ -3628,7 +3640,9 @@ static int nct6775_probe(struct platform_device *pdev)
                 data->REG_BEEP = NCT6776_REG_BEEP;
 
                 reg_temp = NCT6779_REG_TEMP;
+                reg_temp_mon = NCT6779_REG_TEMP_MON;
                 num_reg_temp = ARRAY_SIZE(NCT6779_REG_TEMP);
+                num_reg_temp_mon = ARRAY_SIZE(NCT6779_REG_TEMP_MON);
                 reg_temp_over = NCT6779_REG_TEMP_OVER;
                 reg_temp_hyst = NCT6779_REG_TEMP_HYST;
                 reg_temp_config = NCT6779_REG_TEMP_CONFIG;
@@ -3729,6 +3743,50 @@ static int nct6775_probe(struct platform_device *pdev)
                 s++;
         }
 
+        /*
+         * Repeat with temperatures used for fan control.
+         * This set of registers does not support limits.
+         */
+        for (i = 0; i < num_reg_temp_mon; i++) {
+                if (reg_temp_mon[i] == 0)
+                        continue;
+
+                src = nct6775_read_value(data, data->REG_TEMP_SEL[i]) & 0x1f;
+                if (!src || (mask & (1 << src)))
+                        continue;
+
+                if (src >= data->temp_label_num ||
+                    !strlen(data->temp_label[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],
+                                 reg_temp_mon[i]);
+                        continue;
+                }
+
+                mask |= 1 << src;
+
+                /* Use fixed index for SYSTIN(1), CPUTIN(2), AUXTIN(3) */
+                if (src <= data->temp_fixed_num) {
+                        if (data->have_temp & (1 << (src - 1)))
+                                continue;
+                        data->have_temp |= 1 << (src - 1);
+                        data->have_temp_fixed |= 1 << (src - 1);
+                        data->reg_temp[0][src - 1] = reg_temp_mon[i];
+                        data->temp_src[src - 1] = src;
+                        continue;
+                }
+
+                if (s >= NUM_TEMP)
+                        continue;
+
+                /* Use dynamic index for other sources */
+                data->have_temp |= 1 << s;
+                data->reg_temp[0][s] = reg_temp_mon[i];
+                data->temp_src[s] = src;
+                s++;
+        }
+
 #ifdef USE_ALTERNATE
         /*
          * Go through the list of alternate temp registers and enable