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authorGuenter Roeck <linux@roeck-us.net>2017-02-08 14:00:21 -0800
committerGuenter Roeck <linux@roeck-us.net>2017-02-10 21:35:08 -0800
commit638c1c07f99b752c14502009b50ffe4dd4de5ae2 (patch)
treeec26cd54ff0316076ae00c05750cc5f0c2fa9fcf /drivers/hwmon
parent8af1abae7275026ae18a8b10084c4410accdb1f0 (diff)
hwmon: (it87) Improve IT8622 support
Configuration registers on ITE8622 are different to 8620 and 8628 and require special handling. Also, the chip supports up to 5 pwm controls. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon')
-rw-r--r--drivers/hwmon/it87.c67
1 files changed, 59 insertions, 8 deletions
diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c
index 4d9090f89401..11a28b233006 100644
--- a/drivers/hwmon/it87.c
+++ b/drivers/hwmon/it87.c
@@ -295,10 +295,11 @@ struct it87_devices {
#define FEAT_SIX_FANS BIT(11) /* Supports six fans */
#define FEAT_10_9MV_ADC BIT(12)
#define FEAT_AVCC3 BIT(13) /* Chip supports in9/AVCC3 */
-#define FEAT_SIX_PWM BIT(14) /* Chip supports 6 pwm chn */
-#define FEAT_PWM_FREQ2 BIT(15) /* Separate pwm freq 2 */
-#define FEAT_SIX_TEMP BIT(16) /* Up to 6 temp sensors */
-#define FEAT_VIN3_5V BIT(17) /* VIN3 connected to +5V */
+#define FEAT_FIVE_PWM BIT(14) /* Chip supports 5 pwm chn */
+#define FEAT_SIX_PWM BIT(15) /* Chip supports 6 pwm chn */
+#define FEAT_PWM_FREQ2 BIT(16) /* Separate pwm freq 2 */
+#define FEAT_SIX_TEMP BIT(17) /* Up to 6 temp sensors */
+#define FEAT_VIN3_5V BIT(18) /* VIN3 connected to +5V */
static const struct it87_devices it87_devices[] = {
[it87] = {
@@ -444,8 +445,8 @@ static const struct it87_devices it87_devices[] = {
.suffix = "E",
.features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS
| FEAT_TEMP_OFFSET | FEAT_TEMP_PECI | FEAT_FIVE_FANS
- | FEAT_IN7_INTERNAL | FEAT_PWM_FREQ2 | FEAT_AVCC3
- | FEAT_VIN3_5V,
+ | FEAT_FIVE_PWM | FEAT_IN7_INTERNAL | FEAT_PWM_FREQ2
+ | FEAT_AVCC3 | FEAT_VIN3_5V,
.peci_mask = 0x07,
},
[it8628] = {
@@ -477,6 +478,8 @@ static const struct it87_devices it87_devices[] = {
#define has_in7_internal(data) ((data)->features & FEAT_IN7_INTERNAL)
#define has_six_fans(data) ((data)->features & FEAT_SIX_FANS)
#define has_avcc3(data) ((data)->features & FEAT_AVCC3)
+#define has_five_pwm(data) ((data)->features & (FEAT_FIVE_PWM \
+ | FEAT_SIX_PWM))
#define has_six_pwm(data) ((data)->features & FEAT_SIX_PWM)
#define has_pwm_freq2(data) ((data)->features & FEAT_PWM_FREQ2)
#define has_six_temp(data) ((data)->features & FEAT_SIX_TEMP)
@@ -1929,11 +1932,13 @@ static ssize_t show_label(struct device *dev, struct device_attribute *attr,
"+5V",
"5VSB",
"Vbat",
+ "AVCC",
};
static const char * const labels_it8721[] = {
"+3.3V",
"3VSB",
"Vbat",
+ "+3.3V",
};
struct it87_data *data = dev_get_drvdata(dev);
int nr = to_sensor_dev_attr(attr)->index;
@@ -1952,7 +1957,7 @@ static SENSOR_DEVICE_ATTR(in3_label, S_IRUGO, show_label, NULL, 0);
static SENSOR_DEVICE_ATTR(in7_label, S_IRUGO, show_label, NULL, 1);
static SENSOR_DEVICE_ATTR(in8_label, S_IRUGO, show_label, NULL, 2);
/* AVCC3 */
-static SENSOR_DEVICE_ATTR(in9_label, S_IRUGO, show_label, NULL, 0);
+static SENSOR_DEVICE_ATTR(in9_label, S_IRUGO, show_label, NULL, 3);
static umode_t it87_in_is_visible(struct kobject *kobj,
struct attribute *attr, int index)
@@ -2475,8 +2480,10 @@ static int __init it87_find(int sioaddr, unsigned short *address,
else
sio_data->skip_in |= BIT(9);
- if (!has_six_pwm(config))
+ if (!has_five_pwm(config))
sio_data->skip_pwm |= BIT(3) | BIT(4) | BIT(5);
+ else if (!has_six_pwm(config))
+ sio_data->skip_pwm |= BIT(5);
if (!has_vid(config))
sio_data->skip_vid = 1;
@@ -2620,6 +2627,50 @@ static int __init it87_find(int sioaddr, unsigned short *address,
sio_data->skip_fan |= BIT(5);
}
+ /* Check if AVCC is on VIN3 */
+ reg = superio_inb(sioaddr, IT87_SIO_PINX2_REG);
+ if (reg & BIT(0))
+ sio_data->internal |= BIT(0);
+ else
+ sio_data->skip_in |= BIT(9);
+
+ sio_data->beep_pin = superio_inb(sioaddr,
+ IT87_SIO_BEEP_PIN_REG) & 0x3f;
+ } else if (sio_data->type == it8622) {
+ int reg;
+
+ superio_select(sioaddr, GPIO);
+
+ /* Check for pwm4, fan4 */
+ reg = superio_inb(sioaddr, IT87_SIO_GPIO1_REG);
+ if (reg & BIT(6))
+ sio_data->skip_fan |= BIT(3);
+ if (reg & BIT(5))
+ sio_data->skip_pwm |= BIT(3);
+
+ /* Check for pwm3, fan3, pwm5, fan5 */
+ 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(3))
+ sio_data->skip_pwm |= BIT(4);
+ if (reg & BIT(1))
+ sio_data->skip_fan |= BIT(4);
+
+ /* 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 AVCC */
+ reg = superio_inb(sioaddr, IT87_SIO_PINX2_REG);
+ if (!(reg & BIT(0)))
+ sio_data->skip_in |= BIT(9);
+
sio_data->beep_pin = superio_inb(sioaddr,
IT87_SIO_BEEP_PIN_REG) & 0x3f;
} else {