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authorThomas Lorblanches <zlika_ese@hotmail.com>2015-02-13 13:19:06 +0100
committerGuenter Roeck <linux@roeck-us.net>2015-03-09 09:59:36 -0700
commita0c1424acb16326d9b741be8db7a3e776fc28b19 (patch)
tree5d066bd4cd5e27308ba4bd6f7bbc8f51b49c0716
parent32dd7c409d52655c4ab68be8e0cdd0985c3fa138 (diff)
downloadkernel-a0c1424acb16326d9b741be8db7a3e776fc28b19.tar.gz
hwmon: (it87) Add support for IT8786E
IT8786E is mostly compatible with IT8771 / IT8772. Parameters determined by testing various combinations. Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Thomas Lorblanches <zlika_ese@hotmail.com> [Guenter Roeck: merged from github, addressed review comments] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
-rw-r--r--Documentation/hwmon/it876
-rw-r--r--drivers/hwmon/Kconfig4
-rw-r--r--drivers/hwmon/it87.c22
3 files changed, 23 insertions, 9 deletions
diff --git a/Documentation/hwmon/it87 b/Documentation/hwmon/it87
index 8e192fff10f4..19fbe775ae10 100644
--- a/Documentation/hwmon/it87
+++ b/Documentation/hwmon/it87
@@ -54,6 +54,10 @@ Supported chips:
Prefix: 'it8783'
Addresses scanned: from Super I/O config space (8 I/O ports)
Datasheet: Not publicly available
+ * IT8786E
+ Prefix: 'it8786'
+ Addresses scanned: from Super I/O config space (8 I/O ports)
+ Datasheet: Not publicly available
* SiS950 [clone of IT8705F]
Prefix: 'it87'
Addresses scanned: from Super I/O config space (8 I/O ports)
@@ -100,7 +104,7 @@ Description
This driver implements support for the IT8603E, IT8623E, IT8705F, IT8712F,
IT8716F, IT8718F, IT8720F, IT8721F, IT8726F, IT8728F, IT8758E, IT8771E,
-IT8772E, IT8781F, IT8782F, IT8783E/F, and SiS950 chips.
+IT8772E, IT8781F, IT8782F, IT8783E/F, IT8786E, and SiS950 chips.
These chips are 'Super I/O chips', supporting floppy disks, infrared ports,
joysticks and other miscellaneous stuff. For hardware monitoring, they
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index e96c0ebaaceb..4b40ea79b20f 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -599,8 +599,8 @@ config SENSORS_IT87
help
If you say yes here you get support for ITE IT8705F, IT8712F,
IT8716F, IT8718F, IT8720F, IT8721F, IT8726F, IT8728F, IT8758E,
- IT8771E, IT8772E, IT8781F, IT8782F, IT8783E/F and IT8603E
- sensor chips, and the SiS950 clone.
+ IT8771E, IT8772E, IT8781F, IT8782F, IT8783E/F, IT8786E,
+ and IT8603E sensor chips, and the SiS950 clone.
This driver can also be built as a module. If so, the module
will be called it87.
diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c
index 9ca10a73aee8..691067bbe07c 100644
--- a/drivers/hwmon/it87.c
+++ b/drivers/hwmon/it87.c
@@ -26,6 +26,7 @@
* IT8781F Super I/O chip w/LPC interface
* IT8782F Super I/O chip w/LPC interface
* IT8783E/F Super I/O chip w/LPC interface
+ * IT8786E Super I/O chip w/LPC interface
* Sis950 A clone of the IT8705F
*
* Copyright (C) 2001 Chris Gauthron
@@ -67,7 +68,7 @@
#define DRVNAME "it87"
enum chips { it87, it8712, it8716, it8718, it8720, it8721, it8728, it8771,
- it8772, it8781, it8782, it8783, it8603 };
+ it8772, it8781, it8782, it8783, it8786, it8603 };
static unsigned short force_id;
module_param(force_id, ushort, 0);
@@ -150,6 +151,7 @@ static inline void superio_exit(void)
#define IT8781F_DEVID 0x8781
#define IT8782F_DEVID 0x8782
#define IT8783E_DEVID 0x8783
+#define IT8786E_DEVID 0x8786
#define IT8603E_DEVID 0x8603
#define IT8623E_DEVID 0x8623
#define IT87_ACT_REG 0x30
@@ -335,6 +337,12 @@ static const struct it87_devices it87_devices[] = {
| FEAT_TEMP_OLD_PECI | FEAT_FAN16_CONFIG,
.old_peci_mask = 0x4,
},
+ [it8786] = {
+ .name = "it8786",
+ .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS
+ | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI,
+ .peci_mask = 0x07,
+ },
[it8603] = {
.name = "it8603",
.features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS
@@ -1789,6 +1797,9 @@ static int __init it87_find(unsigned short *address,
case IT8783E_DEVID:
sio_data->type = it8783;
break;
+ case IT8786E_DEVID:
+ sio_data->type = it8786;
+ break;
case IT8603E_DEVID:
case IT8623E_DEVID:
sio_data->type = it8603;
@@ -1816,8 +1827,8 @@ static int __init it87_find(unsigned short *address,
sio_data->revision = superio_inb(DEVREV) & 0x0f;
pr_info("Found IT%04x%c chip at 0x%x, revision %d\n", chip_type,
chip_type == 0x8771 || chip_type == 0x8772 ||
- chip_type == 0x8603 ? 'E' : 'F', *address,
- sio_data->revision);
+ chip_type == 0x8786 || chip_type == 0x8603 ? 'E' : 'F',
+ *address, sio_data->revision);
/* in8 (Vbat) is always internal */
sio_data->internal = (1 << 2);
@@ -1987,9 +1998,8 @@ static int __init it87_find(unsigned short *address,
if (reg & (1 << 0))
sio_data->internal |= (1 << 0);
if ((reg & (1 << 1)) || sio_data->type == it8721 ||
- sio_data->type == it8728 ||
- sio_data->type == it8771 ||
- sio_data->type == it8772)
+ sio_data->type == it8728 || sio_data->type == it8771 ||
+ sio_data->type == it8772 || sio_data->type == it8786)
sio_data->internal |= (1 << 1);
/*