hwmon: (lm63) Support extended lookup table of LM96163

The LM96163 has an extended lookup table with 12 entries instead of 8,
add support for that.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Tested-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>

1 files changed, 62 insertions, 7 deletions

diff --git a/drivers/hwmon/lm63.c b/drivers/hwmon/lm63.c
index 1c06a333ba20..5e6457a6644d 100644
--- a/drivers/hwmon/lm63.c
+++ b/drivers/hwmon/lm63.c
@@ -203,18 +203,19 @@ struct lm63_data {
 
         int update_interval;    /* in milliseconds */
         int max_convrate_hz;
+        int lut_size;           /* 8 or 12 */
 
         /* registers values */
         u8 config, config_fan;
         u16 fan[2];     /* 0: input
                            1: low limit */
         u8 pwm1_freq;
-        u8 pwm1[9];     /* 0: current output
-                           1-8: lookup table */
-        s8 temp8[11];   /* 0: local input
+        u8 pwm1[13];    /* 0: current output
+                           1-12: lookup table */
+        s8 temp8[15];   /* 0: local input
                            1: local high limit
                            2: remote critical limit
-                           3-10: lookup table */
+                           3-14: lookup table */
         s16 temp11[4];  /* 0: remote input
                            1: remote low limit
                            2: remote high limit
@@ -653,6 +654,26 @@ static SENSOR_DEVICE_ATTR(pwm1_auto_point8_temp, S_IRUGO,
         show_lut_temp, NULL, 10);
 static SENSOR_DEVICE_ATTR(pwm1_auto_point8_temp_hyst, S_IRUGO,
         show_lut_temp_hyst, NULL, 10);
+static SENSOR_DEVICE_ATTR(pwm1_auto_point9_pwm, S_IRUGO, show_pwm1, NULL, 9);
+static SENSOR_DEVICE_ATTR(pwm1_auto_point9_temp, S_IRUGO,
+        show_lut_temp, NULL, 11);
+static SENSOR_DEVICE_ATTR(pwm1_auto_point9_temp_hyst, S_IRUGO,
+        show_lut_temp_hyst, NULL, 11);
+static SENSOR_DEVICE_ATTR(pwm1_auto_point10_pwm, S_IRUGO, show_pwm1, NULL, 10);
+static SENSOR_DEVICE_ATTR(pwm1_auto_point10_temp, S_IRUGO,
+        show_lut_temp, NULL, 12);
+static SENSOR_DEVICE_ATTR(pwm1_auto_point10_temp_hyst, S_IRUGO,
+        show_lut_temp_hyst, NULL, 12);
+static SENSOR_DEVICE_ATTR(pwm1_auto_point11_pwm, S_IRUGO, show_pwm1, NULL, 11);
+static SENSOR_DEVICE_ATTR(pwm1_auto_point11_temp, S_IRUGO,
+        show_lut_temp, NULL, 13);
+static SENSOR_DEVICE_ATTR(pwm1_auto_point11_temp_hyst, S_IRUGO,
+        show_lut_temp_hyst, NULL, 13);
+static SENSOR_DEVICE_ATTR(pwm1_auto_point12_pwm, S_IRUGO, show_pwm1, NULL, 12);
+static SENSOR_DEVICE_ATTR(pwm1_auto_point12_temp, S_IRUGO,
+        show_lut_temp, NULL, 14);
+static SENSOR_DEVICE_ATTR(pwm1_auto_point12_temp_hyst, S_IRUGO,
+        show_lut_temp_hyst, NULL, 14);
 
 static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_local_temp8, NULL, 0);
 static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_local_temp8,
@@ -732,6 +753,26 @@ static struct attribute *lm63_attributes[] = {
         NULL
 };
 
+static struct attribute *lm63_attributes_extra_lut[] = {
+        &sensor_dev_attr_pwm1_auto_point9_pwm.dev_attr.attr,
+        &sensor_dev_attr_pwm1_auto_point9_temp.dev_attr.attr,
+        &sensor_dev_attr_pwm1_auto_point9_temp_hyst.dev_attr.attr,
+        &sensor_dev_attr_pwm1_auto_point10_pwm.dev_attr.attr,
+        &sensor_dev_attr_pwm1_auto_point10_temp.dev_attr.attr,
+        &sensor_dev_attr_pwm1_auto_point10_temp_hyst.dev_attr.attr,
+        &sensor_dev_attr_pwm1_auto_point11_pwm.dev_attr.attr,
+        &sensor_dev_attr_pwm1_auto_point11_temp.dev_attr.attr,
+        &sensor_dev_attr_pwm1_auto_point11_temp_hyst.dev_attr.attr,
+        &sensor_dev_attr_pwm1_auto_point12_pwm.dev_attr.attr,
+        &sensor_dev_attr_pwm1_auto_point12_temp.dev_attr.attr,
+        &sensor_dev_attr_pwm1_auto_point12_temp_hyst.dev_attr.attr,
+        NULL
+};
+
+static const struct attribute_group lm63_group_extra_lut = {
+        .attrs = lm63_attributes_extra_lut,
+};
+
 /*
  * On LM63, temp2_crit can be set only once, which should be job
  * of the bootloader.
@@ -861,6 +902,11 @@ static int lm63_probe(struct i2c_client *new_client,
                                          &dev_attr_temp2_type);
                 if (err)
                         goto exit_remove_files;
+
+                err = sysfs_create_group(&new_client->dev.kobj,
+                                         &lm63_group_extra_lut);
+                if (err)
+                        goto exit_remove_files;
         }
 
         data->hwmon_dev = hwmon_device_register(&new_client->dev);
@@ -872,9 +918,13 @@ static int lm63_probe(struct i2c_client *new_client,
         return 0;
 
 exit_remove_files:
-        device_remove_file(&new_client->dev, &dev_attr_temp2_type);
         sysfs_remove_group(&new_client->dev.kobj, &lm63_group);
         sysfs_remove_group(&new_client->dev.kobj, &lm63_group_fan1);
+        if (data->kind == lm96163) {
+                device_remove_file(&new_client->dev, &dev_attr_temp2_type);
+                sysfs_remove_group(&new_client->dev.kobj,
+                                   &lm63_group_extra_lut);
+        }
 exit_free:
         kfree(data);
 exit:
@@ -914,9 +964,11 @@ static void lm63_init_client(struct i2c_client *client)
         case lm63:
         case lm64:
                 data->max_convrate_hz = LM63_MAX_CONVRATE_HZ;
+                data->lut_size = 8;
                 break;
         case lm96163:
                 data->max_convrate_hz = LM96163_MAX_CONVRATE_HZ;
+                data->lut_size = 12;
                 data->trutherm
                   = i2c_smbus_read_byte_data(client,
                                              LM96163_REG_TRUTHERM) & 0x02;
@@ -963,9 +1015,12 @@ static int lm63_remove(struct i2c_client *client)
         struct lm63_data *data = i2c_get_clientdata(client);
 
         hwmon_device_unregister(data->hwmon_dev);
-        device_remove_file(&client->dev, &dev_attr_temp2_type);
         sysfs_remove_group(&client->dev.kobj, &lm63_group);
         sysfs_remove_group(&client->dev.kobj, &lm63_group_fan1);
+        if (data->kind == lm96163) {
+                device_remove_file(&client->dev, &dev_attr_temp2_type);
+                sysfs_remove_group(&client->dev.kobj, &lm63_group_extra_lut);
+        }
 
         kfree(data);
         return 0;
@@ -1046,7 +1101,7 @@ static struct lm63_data *lm63_update_device(struct device *dev)
 
         if (time_after(jiffies, data->lut_last_updated + 5 * HZ) ||
             !data->lut_valid) {
-                for (i = 0; i < 8; i++) {
+                for (i = 0; i < data->lut_size; i++) {
                         data->pwm1[1 + i] = i2c_smbus_read_byte_data(client,
                                             LM63_REG_LUT_PWM(i));
                         data->temp8[3 + i] = i2c_smbus_read_byte_data(client,