hwmon: (it87) Update IT8732F chip for 4 fans and PWMs

Add support for 4 fans and 4 PWMs to chipset IT8732F.

Signed-off-by: Frank Crawford <frank@crawford.emu.id.au>
Link: https://lore.kernel.org/r/20230429115205.1547251-4-frank@crawford.emu.id.au
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c
index d5482c6..96c1766 100644 (file)
--- a/drivers/hwmon/it87.c
+++ b/drivers/hwmon/it87.c
@@ -377,7 +377,8 @@ static const struct it87_devices it87_devices[] = {
                .model = "IT8732F",
                .features = FEAT_NEWER_AUTOPWM | FEAT_16BIT_FANS
                  | FEAT_TEMP_OFFSET | FEAT_TEMP_OLD_PECI | FEAT_TEMP_PECI
-                 | FEAT_10_9MV_ADC | FEAT_IN7_INTERNAL,
+                 | FEAT_10_9MV_ADC | FEAT_IN7_INTERNAL | FEAT_FOUR_FANS
+                 | FEAT_FOUR_PWM,
                .peci_mask = 0x07,
                .old_peci_mask = 0x02,  /* Actually reports PCH */
        },
@@ -2932,6 +2933,34 @@ static int __init it87_find(int sioaddr, unsigned short *address,
                if (!(reg & BIT(0)))
                        sio_data->skip_in |= BIT(9);
 
+               sio_data->beep_pin = superio_inb(sioaddr,
+                                                IT87_SIO_BEEP_PIN_REG) & 0x3f;
+       } else if (sio_data->type == it8732) {
+               int reg;
+
+               superio_select(sioaddr, GPIO);
+
+               /* Check for pwm2, fan2 */
+               reg = superio_inb(sioaddr, IT87_SIO_GPIO5_REG);
+               if (reg & BIT(1))
+                       sio_data->skip_pwm |= BIT(1);
+               if (reg & BIT(2))
+                       sio_data->skip_fan |= BIT(1);
+
+               /* Check for pwm3, fan3, fan4 */
+               reg = superio_inb(sioaddr, IT87_SIO_GPIO3_REG);
+               if (reg & BIT(6))
+                       sio_data->skip_pwm |= BIT(2);
+               if (reg & BIT(7))
+                       sio_data->skip_fan |= BIT(2);
+               if (reg & BIT(5))
+                       sio_data->skip_fan |= BIT(3);
+
+               /* Check if AVCC is on VIN3 */
+               reg = superio_inb(sioaddr, IT87_SIO_PINX2_REG);
+               if (reg & BIT(0))
+                       sio_data->internal |= BIT(0);
+
                sio_data->beep_pin = superio_inb(sioaddr,
                                                 IT87_SIO_BEEP_PIN_REG) & 0x3f;
        } else {