it87: Add experimental support for IT8781F and IT8782F

Assume that IT8781F and IT8782F are compatible with IT8783E/F.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>

diff --git a/README b/README
index e529532d3f59e1a9ba75913cd9061d717cbc87a9..4d97bffaf6fdd7c095dab35d80775d88056c6cad 100644 (file)
--- a/README
+++ b/README
@@ -38,6 +38,14 @@ Supported chips:
     Prefix: 'it8772'
     Addresses scanned: from Super I/O config space (8 I/O ports)
     Datasheet: Not publicly available
+  * IT8781F
+    Prefix: 'it8781'
+    Addresses scanned: from Super I/O config space (8 I/O ports)
+    Datasheet: Not publicly available
+  * IT8782F
+    Prefix: 'it8782'
+    Addresses scanned: from Super I/O config space (8 I/O ports)
+    Datasheet: Not publicly available
   * IT8783E/F
     Prefix: 'it8783'
     Addresses scanned: from Super I/O config space (8 I/O ports)

diff --git a/it87.c b/it87.c
index 998cbd4d35c4aaa702ee2faea3ba281be7de0e21..74ac8e39a67224359d56f27158a0b0868547425d 100644 (file)
--- a/it87.c
+++ b/it87.c
@@ -21,6 +21,8 @@
  *            IT8758E  Super I/O chip w/LPC interface
  *            IT8771E  Super I/O chip w/LPC interface
  *            IT8772E  Super I/O chip w/LPC interface
+ *            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
  *            Sis950   A clone of the IT8705F
  *
@@ -70,7 +72,7 @@
 #define DRVNAME "it87"
 
 enum chips { it87, it8712, it8716, it8718, it8720, it8721, it8728, it8771,
-            it8772, it8783 };
+            it8772, it8781, it8782, it8783 };
 
 static unsigned short force_id;
 module_param(force_id, ushort, 0);
@@ -154,6 +156,8 @@ static inline void superio_exit(void)
 #define IT8728F_DEVID 0x8728
 #define IT8771E_DEVID 0x8771
 #define IT8772E_DEVID 0x8772
+#define IT8781F_DEVID 0x8781
+#define IT8782F_DEVID 0x8782
 #define IT8783E_DEVID 0x8783
 #define IT87_ACT_REG  0x30
 #define IT87_BASE_REG 0x60
@@ -444,6 +448,8 @@ static inline int has_16bit_fans(const struct it87_data *data)
            || data->type == it8728
            || data->type == it8771
            || data->type == it8772
+           || data->type == it8781
+           || data->type == it8782
            || data->type == it8783;
 }
 
@@ -1694,6 +1700,12 @@ static int __init it87_find(unsigned short *address,
        case IT8772E_DEVID:
                sio_data->type = it8772;
                break;
+       case IT8781F_DEVID:
+               sio_data->type = it8781;
+               break;
+       case IT8782F_DEVID:
+               sio_data->type = it8782;
+               break;
        case IT8783E_DEVID:
                sio_data->type = it8783;
                break;
@@ -1732,7 +1744,8 @@ static int __init it87_find(unsigned short *address,
                /* The IT8705F has a different LD number for GPIO */
                superio_select(5);
                sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f;
-       } else if (sio_data->type == it8783) {
+       } else if (sio_data->type == it8781 || sio_data->type == it8782 ||
+                  sio_data->type == it8783) {
                int reg25, reg27, reg2A, reg2C, regEF;
 
                sio_data->skip_vid = 1; /* No VID */
@@ -1927,6 +1940,8 @@ static int __devinit it87_probe(struct platform_device *pdev)
                "it8728",
                "it8771",
                "it8772",
+               "it8781",
+               "it8782",
                "it8783",
        };
 
@@ -1972,7 +1987,8 @@ static int __devinit it87_probe(struct platform_device *pdev)
                        data->in_scaled |= (1 << 7);    /* in7 is VSB */
                if (sio_data->internal & (1 << 2))
                        data->in_scaled |= (1 << 8);    /* in8 is Vbat */
-       } else if (sio_data->type == it8783) {
+       } else if (sio_data->type == it8781 || sio_data->type == it8782 ||
+                  sio_data->type == it8783) {
                if (sio_data->internal & (1 << 0))
                        data->in_scaled |= (1 << 3);    /* in3 is VCC5V */
                if (sio_data->internal & (1 << 1))
@@ -2254,7 +2270,8 @@ static void __devinit it87_init_device(struct platform_device *pdev)
                                         tmp | 0x07);
                }
                /* IT8705F and IT8783E/F only support three fans. */
-               if (data->type != it87 && data->type != it8783) {
+               if (data->type != it87 && data->type != it8781
+                   && data->type != it8782 && data->type != it8783) {
                        if (tmp & (1 << 4))
                                data->has_fan |= (1 << 3); /* fan4 enabled */
                        if (tmp & (1 << 5))