[PATCH 10/10] hwmon: (amc6821) Convert to with_info API

Guenter Roeck
2024-06-28T15:14:10Z

Convert to use with_info API to simplify the code and make it easier
to maintain. This also reduces code size by approximately 20%.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
drivers/hwmon/amc6821.c | 743 +++++++++++++++++++++-------------------
1 file changed, 386 insertions(+), 357 deletions(-)

diff --git a/drivers/hwmon/amc6821.c b/drivers/hwmon/amc6821.c
index 6ffab4288134..14d59aa4254b 100644
--- a/drivers/hwmon/amc6821.c
+++ b/drivers/hwmon/amc6821.c
@@ -6,6 +6,9 @@
*
* Based on max6650.c:
* Copyright (C) 2007 Hans J. Koch <hjk@hansjkoch.de>
+ *
+ * Conversion to regmap and with_info API:
+ * Copyright (C) 2024 Guenter Roeck <linux@roeck-us.net>
*/

#include <linux/bits.h>
@@ -106,28 +109,6 @@ module_param(init, int, 0444);
#define AMC6821_STAT2_L_THERM BIT(6)
#define AMC6821_STAT2_THERM_IN BIT(7)

-enum {IDX_TEMP1_INPUT = 0, IDX_TEMP1_MIN, IDX_TEMP1_MAX,
- IDX_TEMP1_CRIT, IDX_TEMP2_INPUT, IDX_TEMP2_MIN,
- IDX_TEMP2_MAX, IDX_TEMP2_CRIT,
- TEMP_IDX_LEN, };
-
-static const u8 temp_reg[] = {AMC6821_REG_LTEMP_HI,
- AMC6821_REG_LTEMP_LIMIT_MIN,
- AMC6821_REG_LTEMP_LIMIT_MAX,
- AMC6821_REG_LTEMP_CRIT,
- AMC6821_REG_RTEMP_HI,
- AMC6821_REG_RTEMP_LIMIT_MIN,
- AMC6821_REG_RTEMP_LIMIT_MAX,
- AMC6821_REG_RTEMP_CRIT, };
-
-enum {IDX_FAN1_INPUT = 0, IDX_FAN1_MIN, IDX_FAN1_MAX, IDX_FAN1_TARGET,
- FAN1_IDX_LEN, };
-
-static const u8 fan_reg_low[] = {AMC6821_REG_TDATA_LOW,
- AMC6821_REG_TACH_LLIMITL,
- AMC6821_REG_TACH_HLIMITL,
- AMC6821_REG_TACH_SETTINGL, };
-
/*
* Client data (each client gets its own)
*/
@@ -188,232 +169,323 @@ static int amc6821_init_auto_point_data(struct amc6821_data *data)
return 0;
}

-static ssize_t temp_show(struct device *dev, struct device_attribute *devattr,
- char *buf)
+static int amc6821_temp_read_values(struct regmap *regmap, u32 attr, int channel, long *val)
{
- struct amc6821_data *data = dev_get_drvdata(dev);
- int ix = to_sensor_dev_attr(devattr)->index;
+ int reg, err;
u32 regval;
- int err;

- err = regmap_read(data->regmap, temp_reg[ix], &regval);
- if (err)
- return err;
-
- return sysfs_emit(buf, "%d\n", (int8_t)regval * 1000);
-}
-
-static ssize_t temp_store(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct amc6821_data *data = dev_get_drvdata(dev);
- int ix = to_sensor_dev_attr(attr)->index;
- long val;
- int err;
-
- int ret = kstrtol(buf, 10, &val);
- if (ret)
- return ret;
- val = clamp_val(val / 1000, -128, 127);
-
- err = regmap_write(data->regmap, temp_reg[ix], val);
- if (err)
- return err;
-
- return count;
-}
-
-static ssize_t temp_alarm_show(struct device *dev,
- struct device_attribute *devattr, char *buf)
-{
- struct amc6821_data *data = dev_get_drvdata(dev);
- int ix = to_sensor_dev_attr(devattr)->index;
- u32 regval, mask, reg;
- int err;
-
- switch (ix) {
- case IDX_TEMP1_MIN:
- reg = AMC6821_REG_STAT1;
- mask = AMC6821_STAT1_LTL;
+ switch (attr) {
+ case hwmon_temp_input:
+ reg = channel ? AMC6821_REG_RTEMP_HI : AMC6821_REG_LTEMP_HI;
break;
- case IDX_TEMP1_MAX:
- reg = AMC6821_REG_STAT1;
- mask = AMC6821_STAT1_LTH;
+ case hwmon_temp_min:
+ reg = channel ? AMC6821_REG_RTEMP_LIMIT_MIN : AMC6821_REG_LTEMP_LIMIT_MIN;
break;
- case IDX_TEMP1_CRIT:
- reg = AMC6821_REG_STAT2;
- mask = AMC6821_STAT2_LTC;
+ case hwmon_temp_max:
+ reg = channel ? AMC6821_REG_RTEMP_LIMIT_MAX : AMC6821_REG_LTEMP_LIMIT_MAX;
break;
- case IDX_TEMP2_MIN:
- reg = AMC6821_REG_STAT1;
- mask = AMC6821_STAT1_RTL;
- break;
- case IDX_TEMP2_MAX:
- reg = AMC6821_REG_STAT1;
- mask = AMC6821_STAT1_RTH;
- break;
- case IDX_TEMP2_CRIT:
- reg = AMC6821_REG_STAT2;
- mask = AMC6821_STAT2_RTC;
+ case hwmon_temp_crit:
+ reg = channel ? AMC6821_REG_RTEMP_CRIT : AMC6821_REG_LTEMP_CRIT;
break;
default:
- dev_dbg(dev, "Unknown attr->index (%d).\n", ix);
- return -EINVAL;
+ return -EOPNOTSUPP;
}
- err = regmap_read(data->regmap, reg, &regval);
+ err = regmap_read(regmap, reg, &regval);
if (err)
return err;
- return sysfs_emit(buf, "%d\n", !!(regval & mask));
+ *val = (int8_t)regval * 1000;
+ return 0;
}

-static ssize_t temp2_fault_show(struct device *dev,
- struct device_attribute *devattr, char *buf)
+static int amc6821_read_alarms(struct regmap *regmap, enum hwmon_sensor_types type,
+ u32 attr, int channel, long *val)
{
- struct amc6821_data *data = dev_get_drvdata(dev);
+ int reg, mask, err;
u32 regval;
- int err;

- err = regmap_read(data->regmap, AMC6821_REG_STAT1, &regval);
- if (err)
- return err;
-
- return sysfs_emit(buf, "%d\n", !!(regval & AMC6821_STAT1_RTF));
-}
-
-static ssize_t pwm1_show(struct device *dev, struct device_attribute *devattr,
- char *buf)
-{
- struct amc6821_data *data = dev_get_drvdata(dev);
- u32 regval;
- int err;
-
- err = regmap_read(data->regmap, AMC6821_REG_DCY, &regval);
- if (err)
- return err;
-
- return sysfs_emit(buf, "%d\n", regval);
-}
-
-static ssize_t pwm1_store(struct device *dev,
- struct device_attribute *devattr, const char *buf,
- size_t count)
-{
- struct amc6821_data *data = dev_get_drvdata(dev);
- long val;
- int ret = kstrtol(buf, 10, &val);
- if (ret)
- return ret;
-
- if (val < 0 || val > 255)
- return -EINVAL;
-
- ret = regmap_write(data->regmap, AMC6821_REG_DCY, val);
- if (ret)
- return ret;
-
- return count;
-}
-
-static ssize_t pwm1_enable_show(struct device *dev,
- struct device_attribute *devattr, char *buf)
-{
- struct amc6821_data *data = dev_get_drvdata(dev);
- int err;
- u32 val;
-
- err = regmap_read(data->regmap, AMC6821_REG_CONF1, &val);
- if (err)
- return err;
- switch (val & (AMC6821_CONF1_FDRC0 | AMC6821_CONF1_FDRC1)) {
- case 0:
- val = 1; /* manual */
+ switch (type) {
+ case hwmon_temp:
+ switch (attr) {
+ case hwmon_temp_min_alarm:
+ reg = AMC6821_REG_STAT1;
+ mask = channel ? AMC6821_STAT1_RTL : AMC6821_STAT1_LTL;
+ break;
+ case hwmon_temp_max_alarm:
+ reg = AMC6821_REG_STAT1;
+ mask = channel ? AMC6821_STAT1_RTH : AMC6821_STAT1_LTH;
+ break;
+ case hwmon_temp_crit_alarm:
+ reg = AMC6821_REG_STAT2;
+ mask = channel ? AMC6821_STAT2_RTC : AMC6821_STAT2_LTC;
+ break;
+ case hwmon_temp_fault:
+ reg = AMC6821_REG_STAT1;
+ mask = AMC6821_STAT1_RTF;
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
break;
- case AMC6821_CONF1_FDRC0:
- val = 4; /* target rpm (fan1_target) controlled */
- break;
- case AMC6821_CONF1_FDRC1:
- val = 2; /* remote temp controlled */
+ case hwmon_fan:
+ switch (attr) {
+ case hwmon_fan_fault:
+ reg = AMC6821_REG_STAT1;
+ mask = AMC6821_STAT1_FANS;
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
break;
default:
- val = 3; /* max(local, remote) temp controlled */
- break;
+ return -EOPNOTSUPP;
}
- return sysfs_emit(buf, "%d\n", val);
+ err = regmap_read(regmap, reg, &regval);
+ if (err)
+ return err;
+ *val = !!(regval & mask);
+ return 0;
}

-static ssize_t pwm1_enable_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
+static int amc6821_temp_read(struct device *dev, u32 attr, int channel, long *val)
{
struct amc6821_data *data = dev_get_drvdata(dev);
- long val;
+
+ switch (attr) {
+ case hwmon_temp_input:
+ case hwmon_temp_min:
+ case hwmon_temp_max:
+ case hwmon_temp_crit:
+ return amc6821_temp_read_values(data->regmap, attr, channel, val);
+ case hwmon_temp_min_alarm:
+ case hwmon_temp_max_alarm:
+ case hwmon_temp_crit_alarm:
+ case hwmon_temp_fault:
+ return amc6821_read_alarms(data->regmap, hwmon_temp, attr, channel, val);
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static int amc6821_temp_write(struct device *dev, u32 attr, int channel, long val)
+{
+ struct amc6821_data *data = dev_get_drvdata(dev);
+ int reg;
+
+ val = DIV_ROUND_CLOSEST(clamp_val(val, -128000, 127000), 1000);
+
+ switch (attr) {
+ case hwmon_temp_min:
+ reg = channel ? AMC6821_REG_RTEMP_LIMIT_MIN : AMC6821_REG_LTEMP_LIMIT_MIN;
+ break;
+ case hwmon_temp_max:
+ reg = channel ? AMC6821_REG_RTEMP_LIMIT_MAX : AMC6821_REG_LTEMP_LIMIT_MAX;
+ break;
+ case hwmon_temp_crit:
+ reg = channel ? AMC6821_REG_RTEMP_CRIT : AMC6821_REG_LTEMP_CRIT;
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+ return regmap_write(data->regmap, reg, val);
+}
+
+static int amc6821_pwm_read(struct device *dev, u32 attr, long *val)
+{
+ struct amc6821_data *data = dev_get_drvdata(dev);
+ struct regmap *regmap = data->regmap;
+ u32 regval;
+ int err;
+
+ switch (attr) {
+ case hwmon_pwm_enable:
+ err = regmap_read(regmap, AMC6821_REG_CONF1, &regval);
+ if (err)
+ return err;
+ switch (regval & (AMC6821_CONF1_FDRC0 | AMC6821_CONF1_FDRC1)) {
+ case 0:
+ *val = 1; /* manual */
+ break;
+ case AMC6821_CONF1_FDRC0:
+ *val = 4; /* target rpm (fan1_target) controlled */
+ break;
+ case AMC6821_CONF1_FDRC1:
+ *val = 2; /* remote temp controlled */
+ break;
+ default:
+ *val = 3; /* max(local, remote) temp controlled */
+ break;
+ }
+ return 0;
+ case hwmon_pwm_auto_channels_temp:
+ err = regmap_read(regmap, AMC6821_REG_CONF1, &regval);
+ if (err)
+ return err;
+ switch (regval & (AMC6821_CONF1_FDRC0 | AMC6821_CONF1_FDRC1)) {
+ case 0:
+ case AMC6821_CONF1_FDRC0:
+ *val = 0; /* manual or target rpm controlled */
+ break;
+ case AMC6821_CONF1_FDRC1:
+ *val = 2; /* remote temp controlled */
+ break;
+ default:
+ *val = 3; /* max(local, remote) temp controlled */
+ break;
+ }
+ return 0;
+ case hwmon_pwm_input:
+ err = regmap_read(regmap, AMC6821_REG_DCY, &regval);
+ if (err)
+ return err;
+ *val = regval;
+ return 0;
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static int amc6821_pwm_write(struct device *dev, u32 attr, long val)
+{
+ struct amc6821_data *data = dev_get_drvdata(dev);
+ struct regmap *regmap = data->regmap;
u32 mask;
- int err;

- err = kstrtol(buf, 10, &val);
- if (err)
- return err;
-
- switch (val) {
- case 1:
- mask = 0;
- break;
- case 2:
- mask = AMC6821_CONF1_FDRC1;
- break;
- case 3:
- mask = AMC6821_CONF1_FDRC0 | AMC6821_CONF1_FDRC1;
- break;
- case 4:
- mask = AMC6821_CONF1_FDRC0;
- break;
+ switch (attr) {
+ case hwmon_pwm_enable:
+ switch (val) {
+ case 1:
+ mask = 0;
+ break;
+ case 2:
+ mask = AMC6821_CONF1_FDRC1;
+ break;
+ case 3:
+ mask = AMC6821_CONF1_FDRC0 | AMC6821_CONF1_FDRC1;
+ break;
+ case 4:
+ mask = AMC6821_CONF1_FDRC0;
+ break;
+ default:
+ return -EINVAL;
+ }
+ return regmap_update_bits(regmap, AMC6821_REG_CONF1,
+ AMC6821_CONF1_FDRC0 | AMC6821_CONF1_FDRC1,
+ mask);
+ case hwmon_pwm_input:
+ if (val < 0 || val > 255)
+ return -EINVAL;
+ return regmap_write(regmap, AMC6821_REG_DCY, val);
default:
- return -EINVAL;
+ return -EOPNOTSUPP;
}
-
- err = regmap_update_bits(data->regmap, AMC6821_REG_CONF1,
- AMC6821_CONF1_FDRC0 | AMC6821_CONF1_FDRC1,
- mask);
- if (err < 0)
- return err;
-
- return count;
}

-static ssize_t pwm1_auto_channels_temp_show(struct device *dev,
- struct device_attribute *devattr,
- char *buf)
+static int amc6821_fan_read_rpm(struct regmap *regmap, u32 attr, long *val)
{
- struct amc6821_data *data = dev_get_drvdata(dev);
- u32 val;
- int err;
+ int reg, err;
+ u8 regs[2];
+ u32 regval;

- err = regmap_read(data->regmap, AMC6821_REG_CONF1, &val);
- if (err)
- return err;
- switch (val & (AMC6821_CONF1_FDRC0 | AMC6821_CONF1_FDRC1)) {
- case 0:
- case AMC6821_CONF1_FDRC0:
- val = 0; /* manual or target rpm controlled */
+ switch (attr) {
+ case hwmon_fan_input:
+ reg = AMC6821_REG_TDATA_LOW;
break;
- case AMC6821_CONF1_FDRC1:
- val = 2; /* remote temp controlled */
+ case hwmon_fan_min:
+ reg = AMC6821_REG_TACH_LLIMITL;
+ break;
+ case hwmon_fan_max:
+ reg = AMC6821_REG_TACH_HLIMITL;
+ break;
+ case hwmon_fan_target:
+ reg = AMC6821_REG_TACH_SETTINGL;
break;
default:
- val = 3; /* max(local, remote) temp controlled */
- break;
+ return -EOPNOTSUPP;
}

- return sprintf(buf, "%d\n", val);
+ err = regmap_bulk_read(regmap, reg, regs, 2);
+ if (err)
+ return err;
+
+ regval = (regs[1] << 8) | regs[0];
+ *val = 6000000 / (regval ? : 1);
+
+ return 0;
+}
+
+static int amc6821_fan_read(struct device *dev, u32 attr, long *val)
+{
+ struct amc6821_data *data = dev_get_drvdata(dev);
+ struct regmap *regmap = data->regmap;
+ u32 regval;
+ int err;
+
+ switch (attr) {
+ case hwmon_fan_input:
+ case hwmon_fan_min:
+ case hwmon_fan_max:
+ case hwmon_fan_target:
+ return amc6821_fan_read_rpm(regmap, attr, val);
+ case hwmon_fan_fault:
+ return amc6821_read_alarms(regmap, hwmon_fan, attr, 0, val);
+ case hwmon_fan_pulses:
+ err = regmap_read(regmap, AMC6821_REG_CONF4, &regval);
+ if (err)
+ return err;
+ *val = (regval & AMC6821_CONF4_PSPR) ? 4 : 2;
+ return 0;
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static int amc6821_fan_write(struct device *dev, u32 attr, long val)
+{
+ struct amc6821_data *data = dev_get_drvdata(dev);
+ struct regmap *regmap = data->regmap;
+ u8 regs[2];
+ int reg;
+
+ if (attr == hwmon_fan_pulses) {
+ if (val != 2 && val != 4)
+ return -EINVAL;
+ return regmap_update_bits(regmap, AMC6821_REG_CONF4,
+ AMC6821_CONF4_PSPR,
+ val == 4 ? AMC6821_CONF4_PSPR : 0);
+ }
+
+ if (val < 0)
+ return -EINVAL;
+
+ val = clamp_val(6000000 / (val ? : 1), 0, 0xffff);
+
+ switch (attr) {
+ case hwmon_fan_min:
+ reg = AMC6821_REG_TACH_LLIMITL;
+ break;
+ case hwmon_fan_max:
+ reg = AMC6821_REG_TACH_HLIMITL;
+ break;
+ case hwmon_fan_target:
+ reg = AMC6821_REG_TACH_SETTINGL;
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ regs[0] = val & 0xff;
+ regs[1] = val >> 8;
+
+ return regmap_bulk_write(data->regmap, reg, regs, 2);
}

static ssize_t temp_auto_point_temp_show(struct device *dev,
struct device_attribute *devattr,
char *buf)
{
+ struct amc6821_data *data = dev_get_drvdata(dev);
int ix = to_sensor_dev_attr_2(devattr)->index;
int nr = to_sensor_dev_attr_2(devattr)->nr;
- struct amc6821_data *data = dev_get_drvdata(dev);

switch (nr) {
case 1:
@@ -423,7 +495,6 @@ static ssize_t temp_auto_point_temp_show(struct device *dev,
return sprintf(buf, "%d\n",
data->temp2_auto_point_temp[ix] * 1000);
default:
- dev_dbg(dev, "Unknown attr->nr (%d).\n", nr);
return -EINVAL;
}
}
@@ -579,130 +650,9 @@ static ssize_t pwm1_auto_point_pwm_store(struct device *dev,
return count;
}

-static ssize_t fan_show(struct device *dev, struct device_attribute *devattr,
- char *buf)
-{
- struct amc6821_data *data = dev_get_drvdata(dev);
- int ix = to_sensor_dev_attr(devattr)->index;
- u32 regval;
- u8 regs[2];
- int err;
-
- err = regmap_bulk_read(data->regmap, fan_reg_low[ix], regs, 2);
- if (err)
- return err;
- regval = (regs[1] << 8) | regs[0];
-
- return sysfs_emit(buf, "%d\n", 6000000 / (regval ? : 1));
-}
-
-static ssize_t fan1_fault_show(struct device *dev,
- struct device_attribute *devattr, char *buf)
-{
- struct amc6821_data *data = dev_get_drvdata(dev);
- u32 regval;
- int err;
-
- err = regmap_read(data->regmap, AMC6821_REG_STAT1, &regval);
- if (err)
- return err;
-
- return sysfs_emit(buf, "%d\n", !!(regval & AMC6821_STAT1_FANS));
-}
-
-static ssize_t fan_store(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct amc6821_data *data = dev_get_drvdata(dev);
- int ix = to_sensor_dev_attr(attr)->index;
- u8 regs[2];
- long val;
- int err;
-
- err = kstrtol(buf, 10, &val);
- if (err)
- return err;
-
- val = val < 1 ? 0xFFFF : 6000000 / val;
- val = clamp_val(val, 0, 0xFFFF);
-
- regs[0] = val & 0xff;
- regs[1] = val >> 8;
-
- err = regmap_bulk_write(data->regmap, fan_reg_low[ix], regs, 2);
- if (err)
- return err;
-
- return count;
-}
-
-static ssize_t fan1_pulses_show(struct device *dev,
- struct device_attribute *devattr, char *buf)
-{
- struct amc6821_data *data = dev_get_drvdata(dev);
- u32 regval;
- int err;
-
- err = regmap_read(data->regmap, AMC6821_REG_CONF4, &regval);
- if (err)
- return err;
-
- return sysfs_emit(buf, "%d\n", (regval & AMC6821_CONF4_PSPR) ? 4 : 2);
-}
-
-static ssize_t fan1_pulses_store(struct device *dev,
- struct device_attribute *attr, const char *buf,
- size_t count)
-{
- struct amc6821_data *data = dev_get_drvdata(dev);
- long val;
- int err;
-
- err = kstrtol(buf, 10, &val);
- if (err)
- return err;
-
- if (val != 2 && val != 4)
- return -EINVAL;
-
- err = regmap_update_bits(data->regmap, AMC6821_REG_CONF4,
- AMC6821_CONF4_PSPR,
- val == 4 ? AMC6821_CONF4_PSPR : 0);
- if (err)
- return err;
-
- return count;
-}
-
-static SENSOR_DEVICE_ATTR_RO(temp1_input, temp, IDX_TEMP1_INPUT);
-static SENSOR_DEVICE_ATTR_RW(temp1_min, temp, IDX_TEMP1_MIN);
-static SENSOR_DEVICE_ATTR_RW(temp1_max, temp, IDX_TEMP1_MAX);
-static SENSOR_DEVICE_ATTR_RW(temp1_crit, temp, IDX_TEMP1_CRIT);
-static SENSOR_DEVICE_ATTR_RO(temp1_min_alarm, temp_alarm, IDX_TEMP1_MIN);
-static SENSOR_DEVICE_ATTR_RO(temp1_max_alarm, temp_alarm, IDX_TEMP1_MAX);
-static SENSOR_DEVICE_ATTR_RO(temp1_crit_alarm, temp_alarm, IDX_TEMP1_CRIT);
-static SENSOR_DEVICE_ATTR_RO(temp2_input, temp, IDX_TEMP2_INPUT);
-static SENSOR_DEVICE_ATTR_RW(temp2_min, temp, IDX_TEMP2_MIN);
-static SENSOR_DEVICE_ATTR_RW(temp2_max, temp, IDX_TEMP2_MAX);
-static SENSOR_DEVICE_ATTR_RW(temp2_crit, temp, IDX_TEMP2_CRIT);
-static SENSOR_DEVICE_ATTR_RO(temp2_fault, temp2_fault, 0);
-static SENSOR_DEVICE_ATTR_RO(temp2_min_alarm, temp_alarm, IDX_TEMP2_MIN);
-static SENSOR_DEVICE_ATTR_RO(temp2_max_alarm, temp_alarm, IDX_TEMP2_MAX);
-static SENSOR_DEVICE_ATTR_RO(temp2_crit_alarm, temp_alarm, IDX_TEMP2_CRIT);
-static SENSOR_DEVICE_ATTR_RO(fan1_input, fan, IDX_FAN1_INPUT);
-static SENSOR_DEVICE_ATTR_RW(fan1_min, fan, IDX_FAN1_MIN);
-static SENSOR_DEVICE_ATTR_RW(fan1_max, fan, IDX_FAN1_MAX);
-static SENSOR_DEVICE_ATTR_RW(fan1_target, fan, IDX_FAN1_TARGET);
-static SENSOR_DEVICE_ATTR_RO(fan1_fault, fan1_fault, 0);
-static SENSOR_DEVICE_ATTR_RW(fan1_pulses, fan1_pulses, 0);
-
-static SENSOR_DEVICE_ATTR_RW(pwm1, pwm1, 0);
-static SENSOR_DEVICE_ATTR_RW(pwm1_enable, pwm1_enable, 0);
static SENSOR_DEVICE_ATTR_RO(pwm1_auto_point1_pwm, pwm1_auto_point_pwm, 0);
static SENSOR_DEVICE_ATTR_RW(pwm1_auto_point2_pwm, pwm1_auto_point_pwm, 1);
static SENSOR_DEVICE_ATTR_RO(pwm1_auto_point3_pwm, pwm1_auto_point_pwm, 2);
-static SENSOR_DEVICE_ATTR_RO(pwm1_auto_channels_temp, pwm1_auto_channels_temp,
- 0);
static SENSOR_DEVICE_ATTR_2_RO(temp1_auto_point1_temp, temp_auto_point_temp,
1, 0);
static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_point2_temp, temp_auto_point_temp,
@@ -718,30 +668,6 @@ static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_point3_temp, temp_auto_point_temp,
2, 2);

static struct attribute *amc6821_attrs[] = {
- &sensor_dev_attr_temp1_input.dev_attr.attr,
- &sensor_dev_attr_temp1_min.dev_attr.attr,
- &sensor_dev_attr_temp1_max.dev_attr.attr,
- &sensor_dev_attr_temp1_crit.dev_attr.attr,
- &sensor_dev_attr_temp1_min_alarm.dev_attr.attr,
- &sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
- &sensor_dev_attr_temp1_crit_alarm.dev_attr.attr,
- &sensor_dev_attr_temp2_input.dev_attr.attr,
- &sensor_dev_attr_temp2_min.dev_attr.attr,
- &sensor_dev_attr_temp2_max.dev_attr.attr,
- &sensor_dev_attr_temp2_crit.dev_attr.attr,
- &sensor_dev_attr_temp2_min_alarm.dev_attr.attr,
- &sensor_dev_attr_temp2_max_alarm.dev_attr.attr,
- &sensor_dev_attr_temp2_crit_alarm.dev_attr.attr,
- &sensor_dev_attr_temp2_fault.dev_attr.attr,
- &sensor_dev_attr_fan1_input.dev_attr.attr,
- &sensor_dev_attr_fan1_min.dev_attr.attr,
- &sensor_dev_attr_fan1_max.dev_attr.attr,
- &sensor_dev_attr_fan1_target.dev_attr.attr,
- &sensor_dev_attr_fan1_fault.dev_attr.attr,
- &sensor_dev_attr_fan1_pulses.dev_attr.attr,
- &sensor_dev_attr_pwm1.dev_attr.attr,
- &sensor_dev_attr_pwm1_enable.dev_attr.attr,
- &sensor_dev_attr_pwm1_auto_channels_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,
@@ -753,13 +679,117 @@ static struct attribute *amc6821_attrs[] = {
&sensor_dev_attr_temp2_auto_point3_temp.dev_attr.attr,
NULL
};
-
ATTRIBUTE_GROUPS(amc6821);

+static int amc6821_read(struct device *dev, enum hwmon_sensor_types type,
+ u32 attr, int channel, long *val)
+{
+ switch (type) {
+ case hwmon_temp:
+ return amc6821_temp_read(dev, attr, channel, val);
+ case hwmon_fan:
+ return amc6821_fan_read(dev, attr, val);
+ case hwmon_pwm:
+ return amc6821_pwm_read(dev, attr, val);
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static int amc6821_write(struct device *dev, enum hwmon_sensor_types type,
+ u32 attr, int channel, long val)
+{
+ switch (type) {
+ case hwmon_temp:
+ return amc6821_temp_write(dev, attr, channel, val);
+ case hwmon_fan:
+ return amc6821_fan_write(dev, attr, val);
+ case hwmon_pwm:
+ return amc6821_pwm_write(dev, attr, val);
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static umode_t amc6821_is_visible(const void *data,
+ enum hwmon_sensor_types type,
+ u32 attr, int channel)
+{
+ switch (type) {
+ case hwmon_temp:
+ switch (attr) {
+ case hwmon_temp_input:
+ case hwmon_temp_min_alarm:
+ case hwmon_temp_max_alarm:
+ case hwmon_temp_crit_alarm:
+ case hwmon_temp_fault:
+ return 0444;
+ case hwmon_temp_min:
+ case hwmon_temp_max:
+ case hwmon_temp_crit:
+ return 0644;
+ default:
+ return 0;
+ }
+ case hwmon_fan:
+ switch (attr) {
+ case hwmon_fan_input:
+ case hwmon_fan_fault:
+ return 0444;
+ case hwmon_fan_pulses:
+ case hwmon_fan_min:
+ case hwmon_fan_max:
+ case hwmon_fan_target:
+ return 0644;
+ default:
+ return 0;
+ }
+ case hwmon_pwm:
+ switch (attr) {
+ case hwmon_pwm_enable:
+ case hwmon_pwm_input:
+ return 0644;
+ case hwmon_pwm_auto_channels_temp:
+ return 0444;
+ default:
+ return 0;
+ }
+ default:
+ return 0;
+ }
+}
+
+static const struct hwmon_channel_info * const amc6821_info[] = {
+ HWMON_CHANNEL_INFO(temp,
+ HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX |
+ HWMON_T_CRIT | HWMON_T_MIN_ALARM |
+ HWMON_T_MAX_ALARM | HWMON_T_CRIT_ALARM,
+ HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX |
+ HWMON_T_CRIT | HWMON_T_MIN_ALARM |
+ HWMON_T_MAX_ALARM | HWMON_T_CRIT_ALARM |
+ HWMON_T_FAULT),
+ HWMON_CHANNEL_INFO(fan,
+ HWMON_F_INPUT | HWMON_F_MIN | HWMON_F_MAX |
+ HWMON_F_TARGET | HWMON_F_PULSES | HWMON_F_FAULT),
+ HWMON_CHANNEL_INFO(pwm,
+ HWMON_PWM_INPUT | HWMON_PWM_ENABLE |
+ HWMON_PWM_AUTO_CHANNELS_TEMP),
+ NULL
+};
+
+static const struct hwmon_ops amc6821_hwmon_ops = {
+ .is_visible = amc6821_is_visible,
+ .read = amc6821_read,
+ .write = amc6821_write,
+};
+
+static const struct hwmon_chip_info amc6821_chip_info = {
+ .ops = &amc6821_hwmon_ops,
+ .info = amc6821_info,
+};
+
/* Return 0 if detection is successful, -ENODEV otherwise */
-static int amc6821_detect(
- struct i2c_client *client,
- struct i2c_board_info *info)
+static int amc6821_detect(struct i2c_client *client, struct i2c_board_info *info)
{
struct i2c_adapter *adapter = client->adapter;
int address = client->addr;
@@ -872,7 +902,6 @@ static int amc6821_probe(struct i2c_client *client)
if (!data)
return -ENOMEM;

-
regmap = devm_regmap_init_i2c(client, &amc6821_regmap_config);
if (IS_ERR(regmap))
return dev_err_probe(dev, PTR_ERR(regmap),
@@ -883,9 +912,9 @@ static int amc6821_probe(struct i2c_client *client)
if (err)
return err;

- hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
- data,
- amc6821_groups);
+ hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name,
+ data, &amc6821_chip_info,
+ amc6821_groups);
return PTR_ERR_OR_ZERO(hwmon_dev);
}

--
2.39.2