From: Constantine Shulyupin <const@MakeLinux.com>
To: Jean Delvare <jdelvare@suse.com>,
Guenter Roeck <linux@roeck-us.net>,
Jonathan Corbet <corbet@lwn.net>,
"open list:HARDWARE MONITORING" <lm-sensors@lm-sensors.org>,
"open list:DOCUMENTATION" <linux-doc@vger.kernel.org>,
open list <linux-kernel@vger.kernel.org>
Cc: Constantine Shulyupin <const@MakeLinux.com>
Subject: [lm-sensors] [PATCH v4] hwmon: (nct7802) Add autopoint attributes
Date: Sat, 25 Jul 2015 21:45:50 +0000 [thread overview]
Message-ID: <1437860750-10339-1-git-send-email-const@MakeLinux.com> (raw)
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WARNING: multiple messages have this Message-ID (diff)
From: Constantine Shulyupin <const@MakeLinux.com>
To: Jean Delvare <jdelvare@suse.com>,
Guenter Roeck <linux@roeck-us.net>,
Jonathan Corbet <corbet@lwn.net>,
lm-sensors@lm-sensors.org (open list:HARDWARE MONITORING),
linux-doc@vger.kernel.org (open list:DOCUMENTATION),
linux-kernel@vger.kernel.org (open list)
Cc: Constantine Shulyupin <const@MakeLinux.com>
Subject: [PATCH v4] hwmon: (nct7802) Add autopoint attributes
Date: Sun, 26 Jul 2015 00:45:50 +0300 [thread overview]
Message-ID: <1437860750-10339-1-git-send-email-const@MakeLinux.com> (raw)
Introduced REG_PWM, pwm[1..3]_auto_point[1..5]_temp,
pwm[1..3]_auto_point[1..5]_pwm, nct7802_auto_point_attrs,
nct7802_auto_point_group, updated nct7802_regmap_is_volatile
Signed-off-by: Constantine Shulyupin <const@MakeLinux.com>
---
Changed in v4:
- fixed expression in nct7802_regmap_is_volatile
- added pwmX_auto_temp to driver's documentation
Changed in v3:
- removed nct7802_auto_point_is_visible
- removed usage of sysfs_update_group
- introduced REG_PWM
- removed S_IWUSR from RO attributes
- added PWM registers to nct7802_regmap_is_volatile
Changed in v2:
- removed PWM_REG, TEMP_REG
- removed auto_point[1..4]_temp, auto_point[1..4]_pwm
and auto_point_crit_temp
- introduced pwm[1..3]_auto_point[1..5]_temp
and pwm[1..3]_auto_point[1..5]_pwm.
- introduced nct7802_auto_point_is_visible
- used sysfs_update_group in store_pwm_enable
Default values on my platform:
fan1_alarm:0 pwm2_auto_point1_temp:25000
fan1_beep:0 pwm2_auto_point2_pwm:170
fan1_input:150000 pwm2_auto_point2_temp:35000
fan1_min:0 pwm2_auto_point3_pwm:200
fan2_alarm:0 pwm2_auto_point3_temp:45000
fan2_beep:0 pwm2_auto_point4_pwm:230
fan2_input:0 pwm2_auto_point4_temp:55000
fan2_min:0 pwm2_auto_point5_pwm:255
fan3_alarm:0 pwm2_auto_point5_temp:60000
fan3_beep:0 pwm2_enable:1
fan3_input:0 pwm2_mode:1
fan3_min:0 pwm3:127
in0_alarm:0 pwm3_auto_point1_pwm:140
in0_beep:0 pwm3_auto_point1_temp:25000
in0_input:3312 pwm3_auto_point2_pwm:170
in0_max:4092 pwm3_auto_point2_temp:35000
in0_min:0 pwm3_auto_point3_pwm:200
in1_input:902 pwm3_auto_point3_temp:45000
in3_alarm:0 pwm3_auto_point4_pwm:230
in3_beep:0 pwm3_auto_point4_temp:55000
in3_input:1808 pwm3_auto_point5_pwm:255
in3_max:2046 pwm3_auto_point5_temp:60000
in3_min:0 pwm3_enable:1
in4_alarm:0 pwm3_mode:1
in4_beep:0 temp1_beep:0
in4_input:1508 temp1_crit:100000
in4_max:2046 temp1_crit_alarm:0
in4_min:0 temp1_fault:0
name:nct7802 temp1_input:35500
pwm1:127 temp1_max:85000
pwm1_auto_point1_pwm:140 temp1_max_alarm:0
pwm1_auto_point1_temp:25000 temp1_min:0
pwm1_auto_point2_pwm:170 temp1_min_alarm:0
pwm1_auto_point2_temp:35000 temp1_type:4
pwm1_auto_point3_pwm:200 temp4_beep:0
pwm1_auto_point3_temp:45000 temp4_crit:100000
pwm1_auto_point4_pwm:230 temp4_crit_alarm:0
pwm1_auto_point4_temp:55000 temp4_input:39000
pwm1_auto_point5_pwm:255 temp4_max:85000
pwm1_auto_point5_temp:60000 temp4_max_alarm:0
pwm1_enable:1 temp4_min:0
pwm1_mode:1 temp4_min_alarm:0
pwm2:127 temp6_beep:0
pwm2_auto_point1_pwm:140 temp6_input:0
---
Documentation/hwmon/nct7802 | 5 +-
drivers/hwmon/nct7802.c | 130 ++++++++++++++++++++++++++++++++++++++++++--
2 files changed, 128 insertions(+), 7 deletions(-)
diff --git a/Documentation/hwmon/nct7802 b/Documentation/hwmon/nct7802
index 2e00f5e..c5c25a5 100644
--- a/Documentation/hwmon/nct7802
+++ b/Documentation/hwmon/nct7802
@@ -5,7 +5,7 @@ Supported chips:
* Nuvoton NCT7802Y
Prefix: 'nct7802'
Addresses scanned: I2C 0x28..0x2f
- Datasheet: Available from Nuvoton web site
+ Datasheet: http://www.nuvoton.com/hq/products/cloud-computing/hardware-monitors/desktop-server-series/nct7802y/
Authors:
Guenter Roeck <linux@roeck-us.net>
@@ -17,8 +17,7 @@ This driver implements support for the Nuvoton NCT7802Y hardware monitoring
chip. NCT7802Y supports 6 temperature sensors, 5 voltage sensors, and 3 fan
speed sensors.
-The chip also supports intelligent fan speed control. This functionality is
-not currently supported by the driver.
+Smart Fan™ speed control is avilabel via pwmX_auto_temp attributes.
Tested Boards and BIOS Versions
-------------------------------
diff --git a/drivers/hwmon/nct7802.c b/drivers/hwmon/nct7802.c
index d018571..c1898ba 100644
--- a/drivers/hwmon/nct7802.c
+++ b/drivers/hwmon/nct7802.c
@@ -53,6 +53,7 @@ static const u8 REG_VOLTAGE_LIMIT_MSB_SHIFT[2][5] = {
#define REG_PECI_ENABLE 0x23
#define REG_FAN_ENABLE 0x24
#define REG_VMON_ENABLE 0x25
+#define REG_PWM(x) (0x60 + (x))
#define REG_SMARTFAN_EN(x) (0x64 + (x) / 2)
#define SMARTFAN_EN_SHIFT(x) ((x) % 2 * 4)
#define REG_VENDOR_ID 0xfd
@@ -130,6 +131,9 @@ static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr,
unsigned int val;
int ret;
+ if (!attr->index)
+ return sprintf(buf, "255\n");
+
ret = regmap_read(data->regmap, attr->index, &val);
if (ret < 0)
return ret;
@@ -826,9 +830,12 @@ static SENSOR_DEVICE_ATTR(pwm2_mode, S_IRUGO, show_pwm_mode, NULL, 1);
static SENSOR_DEVICE_ATTR(pwm3_mode, S_IRUGO, show_pwm_mode, NULL, 2);
/* 7.2.91... Fan Control Output Value */
-static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm, store_pwm, 0x60);
-static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, show_pwm, store_pwm, 0x61);
-static SENSOR_DEVICE_ATTR(pwm3, S_IRUGO | S_IWUSR, show_pwm, store_pwm, 0x62);
+static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm, store_pwm,
+ REG_PWM(0));
+static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, show_pwm, store_pwm,
+ REG_PWM(1));
+static SENSOR_DEVICE_ATTR(pwm3, S_IRUGO | S_IWUSR, show_pwm, store_pwm,
+ REG_PWM(2));
/* 7.2.95... Temperature to Fan mapping Relationships Register */
static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, show_pwm_enable,
@@ -893,11 +900,125 @@ static struct attribute_group nct7802_pwm_group = {
.attrs = nct7802_pwm_attrs,
};
+/* 7.2.115... 0x80-0x83, 0x84 Temperature (X-axis) transition */
+static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0x80, 0);
+static SENSOR_DEVICE_ATTR_2(pwm1_auto_point2_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0x81, 0);
+static SENSOR_DEVICE_ATTR_2(pwm1_auto_point3_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0x82, 0);
+static SENSOR_DEVICE_ATTR_2(pwm1_auto_point4_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0x83, 0);
+static SENSOR_DEVICE_ATTR_2(pwm1_auto_point5_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0x84, 0);
+
+/* 7.2.120... 0x85-0x88 PWM (Y-axis) transition */
+static SENSOR_DEVICE_ATTR(pwm1_auto_point1_pwm, S_IRUGO | S_IWUSR,
+ show_pwm, store_pwm, 0x85);
+static SENSOR_DEVICE_ATTR(pwm1_auto_point2_pwm, S_IRUGO | S_IWUSR,
+ show_pwm, store_pwm, 0x86);
+static SENSOR_DEVICE_ATTR(pwm1_auto_point3_pwm, S_IRUGO | S_IWUSR,
+ show_pwm, store_pwm, 0x87);
+static SENSOR_DEVICE_ATTR(pwm1_auto_point4_pwm, S_IRUGO | S_IWUSR,
+ show_pwm, store_pwm, 0x88);
+static SENSOR_DEVICE_ATTR(pwm1_auto_point5_pwm, S_IRUGO, show_pwm, NULL, 0);
+
+/* 7.2.124 Table 2 X-axis Transition Point 1 Register */
+static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0x90, 0);
+static SENSOR_DEVICE_ATTR_2(pwm2_auto_point2_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0x91, 0);
+static SENSOR_DEVICE_ATTR_2(pwm2_auto_point3_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0x92, 0);
+static SENSOR_DEVICE_ATTR_2(pwm2_auto_point4_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0x93, 0);
+static SENSOR_DEVICE_ATTR_2(pwm2_auto_point5_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0x94, 0);
+
+/* 7.2.129 Table 2 Y-axis Transition Point 1 Register */
+static SENSOR_DEVICE_ATTR(pwm2_auto_point1_pwm, S_IRUGO | S_IWUSR,
+ show_pwm, store_pwm, 0x95);
+static SENSOR_DEVICE_ATTR(pwm2_auto_point2_pwm, S_IRUGO | S_IWUSR,
+ show_pwm, store_pwm, 0x96);
+static SENSOR_DEVICE_ATTR(pwm2_auto_point3_pwm, S_IRUGO | S_IWUSR,
+ show_pwm, store_pwm, 0x97);
+static SENSOR_DEVICE_ATTR(pwm2_auto_point4_pwm, S_IRUGO | S_IWUSR,
+ show_pwm, store_pwm, 0x98);
+static SENSOR_DEVICE_ATTR(pwm2_auto_point5_pwm, S_IRUGO, show_pwm, NULL, 0);
+
+/* 7.2.133 Table 3 X-axis Transition Point 1 Register */
+static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0xA0, 0);
+static SENSOR_DEVICE_ATTR_2(pwm3_auto_point2_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0xA1, 0);
+static SENSOR_DEVICE_ATTR_2(pwm3_auto_point3_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0xA2, 0);
+static SENSOR_DEVICE_ATTR_2(pwm3_auto_point4_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0xA3, 0);
+static SENSOR_DEVICE_ATTR_2(pwm3_auto_point5_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0xA4, 0);
+
+/* 7.2.138 Table 3 Y-axis Transition Point 1 Register */
+static SENSOR_DEVICE_ATTR(pwm3_auto_point1_pwm, S_IRUGO | S_IWUSR,
+ show_pwm, store_pwm, 0xA5);
+static SENSOR_DEVICE_ATTR(pwm3_auto_point2_pwm, S_IRUGO | S_IWUSR,
+ show_pwm, store_pwm, 0xA6);
+static SENSOR_DEVICE_ATTR(pwm3_auto_point3_pwm, S_IRUGO | S_IWUSR,
+ show_pwm, store_pwm, 0xA7);
+static SENSOR_DEVICE_ATTR(pwm3_auto_point4_pwm, S_IRUGO | S_IWUSR,
+ show_pwm, store_pwm, 0xA8);
+static SENSOR_DEVICE_ATTR(pwm3_auto_point5_pwm, S_IRUGO, show_pwm, NULL, 0);
+
+static struct attribute *nct7802_auto_point_attrs[] = {
+ &sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point3_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point4_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point5_temp.dev_attr.attr,
+
+ &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point3_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point4_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point5_pwm.dev_attr.attr,
+
+ &sensor_dev_attr_pwm2_auto_point1_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point3_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point4_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point5_temp.dev_attr.attr,
+
+ &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point3_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point4_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point5_pwm.dev_attr.attr,
+
+ &sensor_dev_attr_pwm3_auto_point1_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point2_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point3_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point4_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point5_temp.dev_attr.attr,
+
+ &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point3_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point4_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point5_pwm.dev_attr.attr,
+
+ NULL
+};
+
+static struct attribute_group nct7802_auto_point_group = {
+ .attrs = nct7802_auto_point_attrs,
+};
+
static const struct attribute_group *nct7802_groups[] = {
&nct7802_temp_group,
&nct7802_in_group,
&nct7802_fan_group,
&nct7802_pwm_group,
+ &nct7802_auto_point_group,
NULL
};
@@ -945,7 +1066,8 @@ static int nct7802_detect(struct i2c_client *client,
static bool nct7802_regmap_is_volatile(struct device *dev, unsigned int reg)
{
- return reg != REG_BANK && reg <= 0x20;
+ return (reg != REG_BANK && reg <= 0x20) ||
+ (reg >= REG_PWM(0) && reg <= REG_PWM(2));
}
static const struct regmap_config nct7802_regmap_config = {
--
1.9.1
next reply other threads:[~2015-07-25 21:45 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-25 21:45 Constantine Shulyupin [this message]
2015-07-25 21:45 ` [PATCH v4] hwmon: (nct7802) Add autopoint attributes Constantine Shulyupin
2015-07-26 11:40 ` [lm-sensors] " Guenter Roeck
2015-07-27 4:05 ` Guenter Roeck
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