--- drivers/hwmon/it87.c

+++ drivers/hwmon/it87.c

@@ -80,6 +80,13 @@ superio_inb(int reg)

return inb(VAL);

}

+static inline void

+superio_outb(int reg, int val)

+{

+ outb(reg, REG);

+ outb(val, VAL);

+}

+

static int superio_inw(int reg)

{

int val;

@@ -1036,6 +1043,21 @@ static int __init it87_find(unsigned sho

sio_data->vid_value = superio_inb(IT87_SIO_VID_REG);

reg = superio_inb(IT87_SIO_PINX2_REG);

+ /*

+ * The IT8720F has no VIN7 pin, so VCCH should always be

+ * routed internally to VIN7 with an internal divider.

+ * Curiously, there still is a configuration bit to control

+ * this, which means it can be set incorrectly. And even

+ * more curiously, many boards out there are improperly

+ * configured, even though the IT8720F datasheet claims

+ * that the internal routing of VCCH to VIN7 is the default

+ * setting. So we force the internal routing in this case.

+ */

+ if (sio_data->type == it8720 && !(reg & (1 << 1))) {

+ reg |= (1 << 1);

+ superio_outb(IT87_SIO_PINX2_REG, reg);

+ pr_notice("it87: Routing internal VCCH to in7\n");

+ }

if (reg & (1 << 0))

pr_info("it87: in3 is VCC (+5V)\n");

if (reg & (1 << 1))