hwmon: (it87) Add support for IT8732F
Add support for the IT8732F. This chip is pretty similar to IT8721F,
with the main difference being that the ADC LSB is 10.9 mV instead of
12 mV.
Signed-off-by: Justin Maggard <jmaggard@netgear.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index 7c65b73..500b262 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -609,8 +609,8 @@
depends on !PPC
select HWMON_VID
help
- If you say yes here you get support for ITE IT8705F, IT8712F,
- IT8716F, IT8718F, IT8720F, IT8721F, IT8726F, IT8728F, IT8758E,
+ If you say yes here you get support for ITE IT8705F, IT8712F, IT8716F,
+ IT8718F, IT8720F, IT8721F, IT8726F, IT8728F, IT8732F, IT8758E,
IT8771E, IT8772E, IT8781F, IT8782F, IT8783E/F, IT8786E, IT8790E,
IT8603E, IT8620E, and IT8623E sensor chips, and the SiS950 clone.
diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c
index d0ee556..1896e26 100644
--- a/drivers/hwmon/it87.c
+++ b/drivers/hwmon/it87.c
@@ -21,6 +21,7 @@
* IT8721F Super I/O chip w/LPC interface
* IT8726F Super I/O chip w/LPC interface
* IT8728F Super I/O chip w/LPC interface
+ * IT8732F Super I/O chip w/LPC interface
* IT8758E Super I/O chip w/LPC interface
* IT8771E Super I/O chip w/LPC interface
* IT8772E Super I/O chip w/LPC interface
@@ -69,8 +70,9 @@
#define DRVNAME "it87"
-enum chips { it87, it8712, it8716, it8718, it8720, it8721, it8728, it8771,
- it8772, it8781, it8782, it8783, it8786, it8790, it8603, it8620 };
+enum chips { it87, it8712, it8716, it8718, it8720, it8721, it8728, it8732,
+ it8771, it8772, it8781, it8782, it8783, it8786, it8790, it8603,
+ it8620 };
static unsigned short force_id;
module_param(force_id, ushort, 0);
@@ -148,6 +150,7 @@
#define IT8721F_DEVID 0x8721
#define IT8726F_DEVID 0x8726
#define IT8728F_DEVID 0x8728
+#define IT8732F_DEVID 0x8732
#define IT8771E_DEVID 0x8771
#define IT8772E_DEVID 0x8772
#define IT8781F_DEVID 0x8781
@@ -265,6 +268,7 @@
#define FEAT_VID (1 << 9) /* Set if chip supports VID */
#define FEAT_IN7_INTERNAL (1 << 10) /* Set if in7 is internal */
#define FEAT_SIX_FANS (1 << 11) /* Supports six fans */
+#define FEAT_10_9MV_ADC (1 << 12)
static const struct it87_devices it87_devices[] = {
[it87] = {
@@ -315,6 +319,15 @@
| FEAT_IN7_INTERNAL,
.peci_mask = 0x07,
},
+ [it8732] = {
+ .name = "it8732",
+ .suffix = "F",
+ .features = FEAT_NEWER_AUTOPWM | FEAT_16BIT_FANS
+ | FEAT_TEMP_OFFSET | FEAT_TEMP_OLD_PECI | FEAT_TEMP_PECI
+ | FEAT_10_9MV_ADC | FEAT_IN7_INTERNAL,
+ .peci_mask = 0x07,
+ .old_peci_mask = 0x02, /* Actually reports PCH */
+ },
[it8771] = {
.name = "it8771",
.suffix = "E",
@@ -391,6 +404,7 @@
#define has_16bit_fans(data) ((data)->features & FEAT_16BIT_FANS)
#define has_12mv_adc(data) ((data)->features & FEAT_12MV_ADC)
+#define has_10_9mv_adc(data) ((data)->features & FEAT_10_9MV_ADC)
#define has_newer_autopwm(data) ((data)->features & FEAT_NEWER_AUTOPWM)
#define has_old_autopwm(data) ((data)->features & FEAT_OLD_AUTOPWM)
#define has_temp_offset(data) ((data)->features & FEAT_TEMP_OFFSET)
@@ -475,7 +489,14 @@
static int adc_lsb(const struct it87_data *data, int nr)
{
- int lsb = has_12mv_adc(data) ? 12 : 16;
+ int lsb;
+
+ if (has_12mv_adc(data))
+ lsb = 120;
+ else if (has_10_9mv_adc(data))
+ lsb = 109;
+ else
+ lsb = 160;
if (data->in_scaled & (1 << nr))
lsb <<= 1;
return lsb;
@@ -483,13 +504,13 @@
static u8 in_to_reg(const struct it87_data *data, int nr, long val)
{
- val = DIV_ROUND_CLOSEST(val, adc_lsb(data, nr));
+ val = DIV_ROUND_CLOSEST(val * 10, adc_lsb(data, nr));
return clamp_val(val, 0, 255);
}
static int in_from_reg(const struct it87_data *data, int nr, int val)
{
- return val * adc_lsb(data, nr);
+ return DIV_ROUND_CLOSEST(val * adc_lsb(data, nr), 10);
}
static inline u8 FAN_TO_REG(long rpm, int div)
@@ -1515,9 +1536,14 @@
};
struct it87_data *data = dev_get_drvdata(dev);
int nr = to_sensor_dev_attr(attr)->index;
+ const char *label;
- return sprintf(buf, "%s\n", has_12mv_adc(data) ? labels_it8721[nr]
- : labels[nr]);
+ if (has_12mv_adc(data) || has_10_9mv_adc(data))
+ label = labels_it8721[nr];
+ else
+ label = labels[nr];
+
+ return sprintf(buf, "%s\n", label);
}
static SENSOR_DEVICE_ATTR(in3_label, S_IRUGO, show_label, NULL, 0);
static SENSOR_DEVICE_ATTR(in7_label, S_IRUGO, show_label, NULL, 1);
@@ -1853,6 +1879,9 @@
case IT8728F_DEVID:
sio_data->type = it8728;
break;
+ case IT8732F_DEVID:
+ sio_data->type = it8732;
+ break;
case IT8771E_DEVID:
sio_data->type = it8771;
break;