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authorGuenter Roeck <linux@roeck-us.net>2013-04-03 09:14:06 +0400
committerGuenter Roeck <linux@roeck-us.net>2013-08-12 09:10:39 +0400
commitb7a61353484ca6d2d149cefda4982de5575895dd (patch)
treee9edea300092eab4a422044ce8eab97939847bc8 /drivers/hwmon/nct6775.c
parent6c009501ff20012e80ef997443b49cf121a6e4b0 (diff)
downloadlinux-b7a61353484ca6d2d149cefda4982de5575895dd.tar.xz
hwmon: (nct6775) Add support for critical low/high temperature limits on NCT6106
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon/nct6775.c')
-rw-r--r--drivers/hwmon/nct6775.c43
1 files changed, 34 insertions, 9 deletions
diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c
index bebddbbd3907..1560f2359f6a 100644
--- a/drivers/hwmon/nct6775.c
+++ b/drivers/hwmon/nct6775.c
@@ -472,7 +472,11 @@ static const u16 NCT6106_REG_TEMP[] = { 0x10, 0x11, 0x12, 0x13, 0x14, 0x15 };
static const u16 NCT6106_REG_TEMP_HYST[] = {
0xc3, 0xc7, 0xcb, 0xcf, 0xd3, 0xd7 };
static const u16 NCT6106_REG_TEMP_OVER[] = {
- 0xc2, 0xc6, 0xca, 0xce, 0xd2, 0xd4 };
+ 0xc2, 0xc6, 0xca, 0xce, 0xd2, 0xd6 };
+static const u16 NCT6106_REG_TEMP_CRIT_L[] = {
+ 0xc0, 0xc4, 0xc8, 0xcc, 0xd0, 0xd4 };
+static const u16 NCT6106_REG_TEMP_CRIT_H[] = {
+ 0xc1, 0xc5, 0xc9, 0xcf, 0xd1, 0xd5 };
static const u16 NCT6106_REG_TEMP_OFFSET[] = { 0x311, 0x312, 0x313 };
static const u16 NCT6106_REG_TEMP_CONFIG[] = {
0xb7, 0xb8, 0xb9, 0xba, 0xbb, 0xbc };
@@ -647,8 +651,8 @@ struct nct6775_data {
struct attribute_group *group_temp;
struct attribute_group *group_pwm;
- u16 reg_temp[4][NUM_TEMP]; /* 0=temp, 1=temp_over, 2=temp_hyst,
- * 3=temp_crit
+ u16 reg_temp[5][NUM_TEMP]; /* 0=temp, 1=temp_over, 2=temp_hyst,
+ * 3=temp_crit, 4=temp_lcrit
*/
u8 temp_src[NUM_TEMP];
u16 reg_temp_config[NUM_TEMP];
@@ -1851,8 +1855,8 @@ static umode_t nct6775_temp_is_visible(struct kobject *kobj,
{
struct device *dev = container_of(kobj, struct device, kobj);
struct nct6775_data *data = dev_get_drvdata(dev);
- int temp = index / 8; /* temp index */
- int nr = index % 8; /* attribute index */
+ int temp = index / 9; /* temp index */
+ int nr = index % 9; /* attribute index */
if (!(data->have_temp & (1 << temp)))
return 0;
@@ -1869,7 +1873,11 @@ static umode_t nct6775_temp_is_visible(struct kobject *kobj,
if (nr == 5 && !data->reg_temp[3][temp]) /* crit */
return 0;
- if (nr > 5 && !(data->have_temp_fixed & (1 << temp)))
+ if (nr == 6 && !data->reg_temp[4][temp]) /* lcrit */
+ return 0;
+
+ /* offset and type only apply to fixed sensors */
+ if (nr > 6 && !(data->have_temp_fixed & (1 << temp)))
return 0;
return attr->mode;
@@ -1883,6 +1891,8 @@ SENSOR_TEMPLATE_2(temp_max_hyst, "temp%d_max_hyst", S_IRUGO | S_IWUSR,
show_temp, store_temp, 0, 2);
SENSOR_TEMPLATE_2(temp_crit, "temp%d_crit", S_IRUGO | S_IWUSR, show_temp,
store_temp, 0, 3);
+SENSOR_TEMPLATE_2(temp_lcrit, "temp%d_lcrit", S_IRUGO | S_IWUSR, show_temp,
+ store_temp, 0, 4);
SENSOR_TEMPLATE(temp_offset, "temp%d_offset", S_IRUGO | S_IWUSR,
show_temp_offset, store_temp_offset, 0);
SENSOR_TEMPLATE(temp_type, "temp%d_type", S_IRUGO | S_IWUSR, show_temp_type,
@@ -1901,8 +1911,9 @@ static struct sensor_device_template *nct6775_attributes_temp_template[] = {
&sensor_dev_template_temp_max, /* 3 */
&sensor_dev_template_temp_max_hyst, /* 4 */
&sensor_dev_template_temp_crit, /* 5 */
- &sensor_dev_template_temp_offset, /* 6 */
- &sensor_dev_template_temp_type, /* 7 */
+ &sensor_dev_template_temp_lcrit, /* 6 */
+ &sensor_dev_template_temp_offset, /* 7 */
+ &sensor_dev_template_temp_type, /* 8 */
NULL
};
@@ -3054,6 +3065,7 @@ static int nct6775_probe(struct platform_device *pdev)
int src, mask, available;
const u16 *reg_temp, *reg_temp_over, *reg_temp_hyst, *reg_temp_config;
const u16 *reg_temp_alternate, *reg_temp_crit;
+ const u16 *reg_temp_crit_l = NULL, *reg_temp_crit_h = NULL;
int num_reg_temp;
u8 cr2a;
struct attribute_group *group;
@@ -3138,6 +3150,8 @@ static int nct6775_probe(struct platform_device *pdev)
reg_temp_config = NCT6106_REG_TEMP_CONFIG;
reg_temp_alternate = NCT6106_REG_TEMP_ALTERNATE;
reg_temp_crit = NCT6106_REG_TEMP_CRIT;
+ reg_temp_crit_l = NCT6106_REG_TEMP_CRIT_L;
+ reg_temp_crit_h = NCT6106_REG_TEMP_CRIT_H;
break;
case nct6775:
@@ -3406,6 +3420,13 @@ static int nct6775_probe(struct platform_device *pdev)
data->reg_temp[0][src - 1] = reg_temp[i];
data->reg_temp[1][src - 1] = reg_temp_over[i];
data->reg_temp[2][src - 1] = reg_temp_hyst[i];
+ if (reg_temp_crit_h && reg_temp_crit_h[i])
+ data->reg_temp[3][src - 1] = reg_temp_crit_h[i];
+ else if (reg_temp_crit[src - 1])
+ data->reg_temp[3][src - 1]
+ = reg_temp_crit[src - 1];
+ if (reg_temp_crit_l && reg_temp_crit_l[i])
+ data->reg_temp[4][src - 1] = reg_temp_crit_l[i];
data->reg_temp_config[src - 1] = reg_temp_config[i];
data->temp_src[src - 1] = src;
continue;
@@ -3420,8 +3441,12 @@ static int nct6775_probe(struct platform_device *pdev)
data->reg_temp[1][s] = reg_temp_over[i];
data->reg_temp[2][s] = reg_temp_hyst[i];
data->reg_temp_config[s] = reg_temp_config[i];
- if (reg_temp_crit[src - 1])
+ if (reg_temp_crit_h && reg_temp_crit_h[i])
+ data->reg_temp[3][s] = reg_temp_crit_h[i];
+ else if (reg_temp_crit[src - 1])
data->reg_temp[3][s] = reg_temp_crit[src - 1];
+ if (reg_temp_crit_l && reg_temp_crit_l[i])
+ data->reg_temp[4][s] = reg_temp_crit_l[i];
data->temp_src[s] = src;
s++;