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path: root/drivers/hwmon/w83627ehf.c
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Diffstat (limited to 'drivers/hwmon/w83627ehf.c')
-rw-r--r--drivers/hwmon/w83627ehf.c129
1 files changed, 113 insertions, 16 deletions
diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c
index 1821b7423d5b..0a89211c25f6 100644
--- a/drivers/hwmon/w83627ehf.c
+++ b/drivers/hwmon/w83627ehf.c
@@ -1,7 +1,7 @@
/*
* w83627ehf - Driver for the hardware monitoring functionality of
* the Winbond W83627EHF Super-I/O chip
- * Copyright (C) 2005-2011 Jean Delvare <khali@linux-fr.org>
+ * Copyright (C) 2005-2012 Jean Delvare <khali@linux-fr.org>
* Copyright (C) 2006 Yuan Mu (Winbond),
* Rudolf Marek <r.marek@assembler.cz>
* David Hubbard <david.c.hubbard@gmail.com>
@@ -354,8 +354,8 @@ static inline unsigned int step_time_from_reg(u8 reg, u8 mode)
static inline u8 step_time_to_reg(unsigned int msec, u8 mode)
{
- return SENSORS_LIMIT((mode ? (msec + 50) / 100 :
- (msec + 200) / 400), 1, 255);
+ return clamp_val((mode ? (msec + 50) / 100 : (msec + 200) / 400),
+ 1, 255);
}
static unsigned int fan_from_reg8(u16 reg, unsigned int divreg)
@@ -414,8 +414,7 @@ static inline long in_from_reg(u8 reg, u8 nr, const u16 *scale_in)
static inline u8 in_to_reg(u32 val, u8 nr, const u16 *scale_in)
{
- return SENSORS_LIMIT(DIV_ROUND_CLOSEST(val * 100, scale_in[nr]), 0,
- 255);
+ return clamp_val(DIV_ROUND_CLOSEST(val * 100, scale_in[nr]), 0, 255);
}
/*
@@ -502,6 +501,13 @@ struct w83627ehf_data {
u16 have_temp_offset;
u8 in6_skip:1;
u8 temp3_val_only:1;
+
+#ifdef CONFIG_PM
+ /* Remember extra register values over suspend/resume */
+ u8 vbat;
+ u8 fandiv1;
+ u8 fandiv2;
+#endif
};
struct w83627ehf_sio_data {
@@ -898,6 +904,8 @@ static struct w83627ehf_data *w83627ehf_update_device(struct device *dev)
data->temp_max_hyst[i]
= w83627ehf_read_temp(data,
data->reg_temp_hyst[i]);
+ if (i > 2)
+ continue;
if (data->have_temp_offset & (1 << i))
data->temp_offset[i]
= w83627ehf_read_value(data,
@@ -1258,7 +1266,7 @@ store_temp_offset(struct device *dev, struct device_attribute *attr,
if (err < 0)
return err;
- val = SENSORS_LIMIT(DIV_ROUND_CLOSEST(val, 1000), -128, 127);
+ val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), -128, 127);
mutex_lock(&data->update_lock);
data->temp_offset[nr] = val;
@@ -1426,7 +1434,7 @@ store_pwm(struct device *dev, struct device_attribute *attr,
if (err < 0)
return err;
- val = SENSORS_LIMIT(val, 0, 255);
+ val = clamp_val(val, 0, 255);
mutex_lock(&data->update_lock);
data->pwm[nr] = val;
@@ -1505,7 +1513,7 @@ store_target_temp(struct device *dev, struct device_attribute *attr,
if (err < 0)
return err;
- val = SENSORS_LIMIT(DIV_ROUND_CLOSEST(val, 1000), 0, 127);
+ val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), 0, 127);
mutex_lock(&data->update_lock);
data->target_temp[nr] = val;
@@ -1531,7 +1539,7 @@ store_tolerance(struct device *dev, struct device_attribute *attr,
return err;
/* Limit the temp to 0C - 15C */
- val = SENSORS_LIMIT(DIV_ROUND_CLOSEST(val, 1000), 0, 15);
+ val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), 0, 15);
mutex_lock(&data->update_lock);
if (sio_data->kind == nct6775 || sio_data->kind == nct6776) {
@@ -1630,7 +1638,7 @@ store_##reg(struct device *dev, struct device_attribute *attr, \
err = kstrtoul(buf, 10, &val); \
if (err < 0) \
return err; \
- val = SENSORS_LIMIT(val, 1, 255); \
+ val = clamp_val(val, 1, 255); \
mutex_lock(&data->update_lock); \
data->reg[nr] = val; \
w83627ehf_write_value(data, data->REG_##REG[nr], val); \
@@ -1866,7 +1874,7 @@ static void w83627ehf_device_remove_files(struct device *dev)
}
/* Get the monitoring functions started */
-static inline void __devinit w83627ehf_init_device(struct w83627ehf_data *data,
+static inline void w83627ehf_init_device(struct w83627ehf_data *data,
enum kinds kind)
{
int i;
@@ -1952,7 +1960,7 @@ static void w82627ehf_swap_tempreg(struct w83627ehf_data *data,
data->reg_temp_config[r2] = tmp;
}
-static void __devinit
+static void
w83627ehf_set_temp_reg_ehf(struct w83627ehf_data *data, int n_temp)
{
int i;
@@ -1965,7 +1973,7 @@ w83627ehf_set_temp_reg_ehf(struct w83627ehf_data *data, int n_temp)
}
}
-static void __devinit
+static void
w83627ehf_check_fan_inputs(const struct w83627ehf_sio_data *sio_data,
struct w83627ehf_data *data)
{
@@ -2054,7 +2062,7 @@ w83627ehf_check_fan_inputs(const struct w83627ehf_sio_data *sio_data,
}
}
-static int __devinit w83627ehf_probe(struct platform_device *pdev)
+static int w83627ehf_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct w83627ehf_sio_data *sio_data = dev->platform_data;
@@ -2083,6 +2091,7 @@ static int __devinit w83627ehf_probe(struct platform_device *pdev)
mutex_init(&data->lock);
mutex_init(&data->update_lock);
data->name = w83627ehf_device_names[sio_data->kind];
+ data->bank = 0xff; /* Force initial bank selection */
platform_set_drvdata(pdev, data);
/* 627EHG and 627EHF have 10 voltage inputs; 627DHG and 667HG have 9 */
@@ -2595,7 +2604,7 @@ exit:
return err;
}
-static int __devexit w83627ehf_remove(struct platform_device *pdev)
+static int w83627ehf_remove(struct platform_device *pdev)
{
struct w83627ehf_data *data = platform_get_drvdata(pdev);
@@ -2607,13 +2616,101 @@ static int __devexit w83627ehf_remove(struct platform_device *pdev)
return 0;
}
+#ifdef CONFIG_PM
+static int w83627ehf_suspend(struct device *dev)
+{
+ struct w83627ehf_data *data = w83627ehf_update_device(dev);
+ struct w83627ehf_sio_data *sio_data = dev->platform_data;
+
+ mutex_lock(&data->update_lock);
+ data->vbat = w83627ehf_read_value(data, W83627EHF_REG_VBAT);
+ if (sio_data->kind == nct6775) {
+ data->fandiv1 = w83627ehf_read_value(data, NCT6775_REG_FANDIV1);
+ data->fandiv2 = w83627ehf_read_value(data, NCT6775_REG_FANDIV2);
+ }
+ mutex_unlock(&data->update_lock);
+
+ return 0;
+}
+
+static int w83627ehf_resume(struct device *dev)
+{
+ struct w83627ehf_data *data = dev_get_drvdata(dev);
+ struct w83627ehf_sio_data *sio_data = dev->platform_data;
+ int i;
+
+ mutex_lock(&data->update_lock);
+ data->bank = 0xff; /* Force initial bank selection */
+
+ /* Restore limits */
+ for (i = 0; i < data->in_num; i++) {
+ if ((i == 6) && data->in6_skip)
+ continue;
+
+ w83627ehf_write_value(data, W83627EHF_REG_IN_MIN(i),
+ data->in_min[i]);
+ w83627ehf_write_value(data, W83627EHF_REG_IN_MAX(i),
+ data->in_max[i]);
+ }
+
+ for (i = 0; i < 5; i++) {
+ if (!(data->has_fan_min & (1 << i)))
+ continue;
+
+ w83627ehf_write_value(data, data->REG_FAN_MIN[i],
+ data->fan_min[i]);
+ }
+
+ for (i = 0; i < NUM_REG_TEMP; i++) {
+ if (!(data->have_temp & (1 << i)))
+ continue;
+
+ if (data->reg_temp_over[i])
+ w83627ehf_write_temp(data, data->reg_temp_over[i],
+ data->temp_max[i]);
+ if (data->reg_temp_hyst[i])
+ w83627ehf_write_temp(data, data->reg_temp_hyst[i],
+ data->temp_max_hyst[i]);
+ if (i > 2)
+ continue;
+ if (data->have_temp_offset & (1 << i))
+ w83627ehf_write_value(data,
+ W83627EHF_REG_TEMP_OFFSET[i],
+ data->temp_offset[i]);
+ }
+
+ /* Restore other settings */
+ w83627ehf_write_value(data, W83627EHF_REG_VBAT, data->vbat);
+ if (sio_data->kind == nct6775) {
+ w83627ehf_write_value(data, NCT6775_REG_FANDIV1, data->fandiv1);
+ w83627ehf_write_value(data, NCT6775_REG_FANDIV2, data->fandiv2);
+ }
+
+ /* Force re-reading all values */
+ data->valid = 0;
+ mutex_unlock(&data->update_lock);
+
+ return 0;
+}
+
+static const struct dev_pm_ops w83627ehf_dev_pm_ops = {
+ .suspend = w83627ehf_suspend,
+ .resume = w83627ehf_resume,
+};
+
+#define W83627EHF_DEV_PM_OPS (&w83627ehf_dev_pm_ops)
+#else
+#define W83627EHF_DEV_PM_OPS NULL
+#endif /* CONFIG_PM */
+
static struct platform_driver w83627ehf_driver = {
.driver = {
.owner = THIS_MODULE,
.name = DRVNAME,
+ .pm = W83627EHF_DEV_PM_OPS,
},
.probe = w83627ehf_probe,
- .remove = __devexit_p(w83627ehf_remove),
+ .remove = w83627ehf_remove,
};
/* w83627ehf_find() looks for a '627 in the Super-I/O config space */
generated by cgit v1.2.3 (git 2.0.4) at 2025-09-10 18:43:05 +0000