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[78.94.0.50]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3557a090d1bsm11052531f8f.60.2024.05.28.02.18.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 28 May 2024 02:18:19 -0700 (PDT) From: Naresh Solanki To: Jean Delvare , Guenter Roeck Cc: Naresh Solanki , linux-hwmon@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2] hwmon: (max6639) : Update hwmon init using info Date: Tue, 28 May 2024 14:48:05 +0530 Message-ID: <20240528091808.863702-1-naresh.solanki@9elements.com> X-Mailer: git-send-email 2.42.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Update hwmon init with info instead of group. Also added additional attribute for fan i.e., fanY_pulse pwmY_freq Signed-off-by: Naresh Solanki --- drivers/hwmon/max6639.c | 536 ++++++++++++++++++++++++++-------------- 1 file changed, 357 insertions(+), 179 deletions(-) diff --git a/drivers/hwmon/max6639.c b/drivers/hwmon/max6639.c index cbb595fe47aa..b757a85837e8 100644 --- a/drivers/hwmon/max6639.c +++ b/drivers/hwmon/max6639.c @@ -55,13 +55,17 @@ static const unsigned short normal_i2c[] =3D { 0x2c, 0x= 2e, 0x2f, I2C_CLIENT_END }; #define MAX6639_GCONFIG_PWM_FREQ_HI 0x08 =20 #define MAX6639_FAN_CONFIG1_PWM 0x80 - +#define MAX6639_FAN_CONFIG3_FREQ_MASK 0x03 #define MAX6639_FAN_CONFIG3_THERM_FULL_SPEED 0x40 =20 #define MAX6639_NUM_CHANNELS 2 =20 static const int rpm_ranges[] =3D { 2000, 4000, 8000, 16000 }; =20 +/* Supported PWM frequency */ +static const unsigned int freq_table[] =3D { 20, 33, 50, 100, 5000, 8333, = 12500, + 25000 }; + #define FAN_FROM_REG(val, rpm_range) ((val) =3D=3D 0 || (val) =3D=3D 255 ?= \ 0 : (rpm_ranges[rpm_range] * 30) / (val)) #define TEMP_LIMIT_TO_REG(val) clamp_val((val) / 1000, 0, 255) @@ -73,19 +77,16 @@ struct max6639_data { struct regmap *regmap; =20 /* Register values initialized only once */ - u8 ppr; /* Pulses per rotation 0..3 for 1..4 ppr */ - u8 rpm_range; /* Index in above rpm_ranges table */ + u8 ppr[MAX6639_NUM_CHANNELS]; /* Pulses per rotation 0..3 for 1..4 ppr */ + u8 rpm_range[MAX6639_NUM_CHANNELS]; /* Index in above rpm_ranges table */ =20 /* Optional regulator for FAN supply */ struct regulator *reg; }; =20 -static ssize_t temp_input_show(struct device *dev, - struct device_attribute *dev_attr, char *buf) +static int max6639_temp_read_input(struct device *dev, int channel, long *= temp) { - long temp; struct max6639_data *data =3D dev_get_drvdata(dev); - struct sensor_device_attribute *attr =3D to_sensor_dev_attr(dev_attr); unsigned int val; int res; =20 @@ -93,251 +94,425 @@ static ssize_t temp_input_show(struct device *dev, * Lock isn't needed as MAX6639_REG_TEMP wpnt change for at least 250ms a= fter reading * MAX6639_REG_TEMP_EXT */ - res =3D regmap_read(data->regmap, MAX6639_REG_TEMP_EXT(attr->index), &val= ); + res =3D regmap_read(data->regmap, MAX6639_REG_TEMP_EXT(channel), &val); if (res < 0) return res; =20 - temp =3D val >> 5; - res =3D regmap_read(data->regmap, MAX6639_REG_TEMP(attr->index), &val); + *temp =3D val >> 5; + res =3D regmap_read(data->regmap, MAX6639_REG_TEMP(channel), &val); if (res < 0) return res; =20 - temp |=3D val << 3; - temp *=3D 125; + *temp |=3D val << 3; + *temp *=3D 125; =20 - return sprintf(buf, "%ld\n", temp); + return res; } =20 -static ssize_t temp_fault_show(struct device *dev, - struct device_attribute *dev_attr, char *buf) +static int max6639_temp_read_fault(struct device *dev, int channel, long *= fault) { struct max6639_data *data =3D dev_get_drvdata(dev); - struct sensor_device_attribute *attr =3D to_sensor_dev_attr(dev_attr); unsigned int val; int res; =20 - res =3D regmap_read(data->regmap, MAX6639_REG_TEMP_EXT(attr->index), &val= ); - if (res < 0) - return res; + res =3D regmap_read(data->regmap, MAX6639_REG_TEMP_EXT(channel), &val); + *fault =3D val & 1; =20 - return sprintf(buf, "%d\n", val & 1); + return res; } =20 -static ssize_t temp_max_show(struct device *dev, - struct device_attribute *dev_attr, char *buf) +static int max6639_temp_read_max(struct device *dev, int channel, long *ma= x) { - struct sensor_device_attribute *attr =3D to_sensor_dev_attr(dev_attr); struct max6639_data *data =3D dev_get_drvdata(dev); unsigned int val; int res; =20 - res =3D regmap_read(data->regmap, MAX6639_REG_THERM_LIMIT(attr->index), &= val); - if (res < 0) - return res; + res =3D regmap_read(data->regmap, MAX6639_REG_THERM_LIMIT(channel), &val); + *max =3D val * 1000; =20 - return sprintf(buf, "%d\n", (val * 1000)); + return res; } =20 -static ssize_t temp_max_store(struct device *dev, - struct device_attribute *dev_attr, - const char *buf, size_t count) +static int max6639_temp_read_crit(struct device *dev, int channel, long *c= rit) { - struct sensor_device_attribute *attr =3D to_sensor_dev_attr(dev_attr); struct max6639_data *data =3D dev_get_drvdata(dev); - unsigned long val; + unsigned int val; int res; =20 - res =3D kstrtoul(buf, 10, &val); - if (res) - return res; + res =3D regmap_read(data->regmap, MAX6639_REG_ALERT_LIMIT(channel), &val); + *crit =3D val * 1000; =20 - regmap_write(data->regmap, MAX6639_REG_THERM_LIMIT(attr->index), - TEMP_LIMIT_TO_REG(val)); - return count; + return res; } =20 -static ssize_t temp_crit_show(struct device *dev, - struct device_attribute *dev_attr, char *buf) +static int max6639_temp_read_emergency(struct device *dev, int channel, lo= ng *emerg) { - struct sensor_device_attribute *attr =3D to_sensor_dev_attr(dev_attr); struct max6639_data *data =3D dev_get_drvdata(dev); unsigned int val; int res; =20 - res =3D regmap_read(data->regmap, MAX6639_REG_ALERT_LIMIT(attr->index), &= val); - if (res < 0) - return res; + res =3D regmap_read(data->regmap, MAX6639_REG_OT_LIMIT(channel), &val); + *emerg =3D val * 1000; =20 - return sprintf(buf, "%d\n", (val * 1000)); + return res; } =20 -static ssize_t temp_crit_store(struct device *dev, - struct device_attribute *dev_attr, - const char *buf, size_t count) +static int max6639_get_status(struct device *dev, unsigned int *status) { - struct sensor_device_attribute *attr =3D to_sensor_dev_attr(dev_attr); struct max6639_data *data =3D dev_get_drvdata(dev); - unsigned long val; + unsigned int val; int res; =20 - res =3D kstrtoul(buf, 10, &val); - if (res) - return res; + res =3D regmap_read(data->regmap, MAX6639_REG_STATUS, &val); + *status =3D val; =20 - regmap_write(data->regmap, MAX6639_REG_ALERT_LIMIT(attr->index), - TEMP_LIMIT_TO_REG(val)); - return count; + return res; } =20 -static ssize_t temp_emergency_show(struct device *dev, - struct device_attribute *dev_attr, - char *buf) +static int max6639_temp_set_max(struct max6639_data *data, int channel, un= signed long val) { - struct sensor_device_attribute *attr =3D to_sensor_dev_attr(dev_attr); - struct max6639_data *data =3D dev_get_drvdata(dev); - unsigned int val; int res; =20 - res =3D regmap_read(data->regmap, MAX6639_REG_OT_LIMIT(attr->index), &val= ); - if (res < 0) - return res; - - return sprintf(buf, "%d\n", (val * 1000)); + res =3D regmap_write(data->regmap, MAX6639_REG_THERM_LIMIT(channel), + TEMP_LIMIT_TO_REG(val)); + return res; } =20 -static ssize_t temp_emergency_store(struct device *dev, - struct device_attribute *dev_attr, - const char *buf, size_t count) +static int max6639_temp_set_crit(struct max6639_data *data, int channel, u= nsigned long val) { - struct sensor_device_attribute *attr =3D to_sensor_dev_attr(dev_attr); - struct max6639_data *data =3D dev_get_drvdata(dev); - unsigned long val; int res; =20 - res =3D kstrtoul(buf, 10, &val); - if (res) - return res; + res =3D regmap_write(data->regmap, MAX6639_REG_ALERT_LIMIT(channel), TEMP= _LIMIT_TO_REG(val)); + + return res; +} + +static int max6639_temp_set_emergency(struct max6639_data *data, int chann= el, unsigned long val) +{ + int res; =20 - regmap_write(data->regmap, MAX6639_REG_OT_LIMIT(attr->index), TEMP_LIMIT_= TO_REG(val)); + res =3D regmap_write(data->regmap, MAX6639_REG_OT_LIMIT(channel), TEMP_LI= MIT_TO_REG(val)); =20 - return count; + return res; } =20 -static ssize_t pwm_show(struct device *dev, struct device_attribute *dev_a= ttr, - char *buf) +static int max6639_read_fan(struct device *dev, u32 attr, int channel, + long *fan_val) { - struct sensor_device_attribute *attr =3D to_sensor_dev_attr(dev_attr); struct max6639_data *data =3D dev_get_drvdata(dev); - unsigned int val; - int res; + unsigned int val, res; =20 - res =3D regmap_read(data->regmap, MAX6639_REG_TARGTDUTY(attr->index), &va= l); - if (res < 0) + if (IS_ERR(data)) + return PTR_ERR(data); + + switch (attr) { + case hwmon_fan_input: + res =3D regmap_read(data->regmap, MAX6639_REG_FAN_CNT(channel), &val); + *fan_val =3D FAN_FROM_REG(val, data->rpm_range[channel]); + return res; + case hwmon_fan_fault: + res =3D max6639_get_status(dev, &val); + *fan_val =3D !!(val & (2 >> channel)); return res; + case hwmon_fan_pulses: + *fan_val =3D data->ppr[channel]; + return 0; + default: + return -EOPNOTSUPP; + } +} =20 - return sprintf(buf, "%d\n", val * 255 / 120); +static int max6639_set_ppr(struct max6639_data *data, int channel, u8 ppr) +{ + return regmap_write(data->regmap, MAX6639_REG_FAN_PPR(channel), ppr-- << = 6); } =20 -static ssize_t pwm_store(struct device *dev, - struct device_attribute *dev_attr, const char *buf, - size_t count) +static int max6639_write_fan(struct device *dev, u32 attr, int channel, + long val) { - struct sensor_device_attribute *attr =3D to_sensor_dev_attr(dev_attr); struct max6639_data *data =3D dev_get_drvdata(dev); - unsigned long val; - int res; + int err; =20 - res =3D kstrtoul(buf, 10, &val); - if (res) - return res; + if (IS_ERR(data)) + return PTR_ERR(data); + + switch (attr) { + case hwmon_fan_pulses: + if (val <=3D 0 || val > 5) { + dev_err(dev, "invalid pulses-per-revolution %ld. Valid range id 1 - 4.", + val); + return -EINVAL; + } + /* Set Fan pulse per revolution */ + err =3D max6639_set_ppr(data, channel, val); + if (err) + dev_err(dev, "Failed to set pulses-per-revolution"); + else + data->ppr[channel] =3D val; + return 0; + default: + return -EOPNOTSUPP; + } +} =20 - val =3D clamp_val(val, 0, 255); +static umode_t max6639_fan_is_visible(const void *_data, u32 attr, int cha= nnel) +{ + struct max6639_data *data =3D (struct max6639_data *)_data; =20 - regmap_write(data->regmap, MAX6639_REG_TARGTDUTY(attr->index), val * 120 = / 255); + if (IS_ERR(data)) + return PTR_ERR(data); =20 - return count; + switch (attr) { + case hwmon_fan_input: + case hwmon_fan_fault: + return 0444; + case hwmon_fan_pulses: + return 0644; + default: + return 0; + } } =20 -static ssize_t fan_input_show(struct device *dev, - struct device_attribute *dev_attr, char *buf) +static int max6639_read_pwm(struct device *dev, u32 attr, int channel, + long *pwm_val) { struct max6639_data *data =3D dev_get_drvdata(dev); - struct sensor_device_attribute *attr =3D to_sensor_dev_attr(dev_attr); - unsigned int val; - int res; - - res =3D regmap_read(data->regmap, MAX6639_REG_FAN_CNT(attr->index), &val); - if (res < 0) + unsigned int val, res; + + if (IS_ERR(data)) + return PTR_ERR(data); + + switch (attr) { + case hwmon_pwm_input: + res =3D regmap_read(data->regmap, MAX6639_REG_TARGTDUTY(channel), &val); + *pwm_val =3D val * 255 / 120; + return 0; + case hwmon_pwm_freq: + u8 x; + + res =3D regmap_read(data->regmap, MAX6639_REG_FAN_CONFIG3(channel), &val= ); + if (res < 0) + return res; + x =3D val & MAX6639_FAN_CONFIG3_FREQ_MASK; + + res =3D regmap_read(data->regmap, MAX6639_REG_GCONFIG, &val); + if (res < 0) + return res; + + if (val & MAX6639_GCONFIG_PWM_FREQ_HI) + x |=3D 0x4; + x &=3D 0x7; + *pwm_val =3D freq_table[x]; return res; - - return sprintf(buf, "%d\n", FAN_FROM_REG(val, data->rpm_range)); + default: + return -EOPNOTSUPP; + } } =20 -static ssize_t alarm_show(struct device *dev, - struct device_attribute *dev_attr, char *buf) +static int max6639_write_pwm(struct device *dev, u32 attr, int channel, + long val) { struct max6639_data *data =3D dev_get_drvdata(dev); - struct sensor_device_attribute *attr =3D to_sensor_dev_attr(dev_attr); - unsigned int val; + int err; + + if (IS_ERR(data)) + return PTR_ERR(data); + + switch (attr) { + case hwmon_pwm_input: + val =3D clamp_val(val, 0, 255); + err =3D regmap_write(data->regmap, MAX6639_REG_TARGTDUTY(channel), + val * 120 / 255); + return err; + case hwmon_pwm_freq: + u8 x; + + val =3D clamp_val(val, 0, 25000); + /* Chip supports limited number of frequency */ + for (x =3D 0; x < sizeof(freq_table); x++) + if (val <=3D freq_table[x]) + break; + + err =3D regmap_update_bits(data->regmap, MAX6639_REG_FAN_CONFIG3(channel= ), + MAX6639_FAN_CONFIG3_FREQ_MASK, x); + if (err < 0) + return err; + + if (x >> 2) + err =3D regmap_set_bits(data->regmap, MAX6639_REG_GCONFIG, + MAX6639_GCONFIG_PWM_FREQ_HI); + else + err =3D regmap_clear_bits(data->regmap, MAX6639_REG_GCONFIG, + MAX6639_GCONFIG_PWM_FREQ_HI); + return err; + default: + return -EOPNOTSUPP; + } +} + +static umode_t max6639_pwm_is_visible(const void *_data, u32 attr, int cha= nnel) +{ + struct max6639_data *data =3D (struct max6639_data *)_data; + + if (IS_ERR(data)) + return PTR_ERR(data); + + switch (attr) { + case hwmon_pwm_input: + case hwmon_pwm_freq: + return 0644; + default: + return 0; + } +} + +static int max6639_read_temp(struct device *dev, u32 attr, int channel, + long *val) +{ + unsigned int status; int res; =20 - res =3D regmap_read(data->regmap, MAX6639_REG_STATUS, &val); - if (res < 0) + switch (attr) { + case hwmon_temp_input: + res =3D max6639_temp_read_input(dev, channel, val); + return res; + case hwmon_temp_fault: + res =3D max6639_temp_read_fault(dev, channel, val); return res; + case hwmon_temp_max: + res =3D max6639_temp_read_max(dev, channel, val); + return res; + case hwmon_temp_crit: + res =3D max6639_temp_read_crit(dev, channel, val); + return res; + case hwmon_temp_emergency: + res =3D max6639_temp_read_emergency(dev, channel, val); + return res; + case hwmon_temp_max_alarm: + res =3D max6639_get_status(dev, &status); + *val =3D !!(status & (0x08 >> channel)); + return res; + case hwmon_temp_crit_alarm: + res =3D max6639_get_status(dev, &status); + *val =3D !!(status & (0x80 >> channel)); + return res; + case hwmon_temp_emergency_alarm: + res =3D max6639_get_status(dev, &status); + *val =3D !!(status & (0x20 >> channel)); + return res; + default: + return -EOPNOTSUPP; + } +} + +static int max6639_write_temp(struct device *dev, u32 attr, int channel, + long val) +{ + struct max6639_data *data =3D dev_get_drvdata(dev); + + switch (attr) { + case hwmon_temp_max: + return max6639_temp_set_max(data, channel, val); + case hwmon_temp_crit: + return max6639_temp_set_crit(data, channel, val); + case hwmon_temp_emergency: + return max6639_temp_set_emergency(data, channel, val); + default: + return -EOPNOTSUPP; + } +} + +static umode_t max6639_temp_is_visible(const void *_data, u32 attr, int ch= annel) +{ + switch (attr) { + case hwmon_temp_input: + case hwmon_temp_fault: + case hwmon_temp_max_alarm: + case hwmon_temp_crit_alarm: + case hwmon_temp_emergency_alarm: + return 0444; + case hwmon_temp_max: + case hwmon_temp_crit: + case hwmon_temp_emergency: + return 0644; + default: + return 0; + } +} + +static int max6639_read(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long *val) +{ + switch (type) { + case hwmon_fan: + return max6639_read_fan(dev, attr, channel, val); + case hwmon_pwm: + return max6639_read_pwm(dev, attr, channel, val); + case hwmon_temp: + return max6639_read_temp(dev, attr, channel, val); + default: + return -EOPNOTSUPP; + } +} =20 - return sprintf(buf, "%d\n", !!(val & (1 << attr->index))); +static int max6639_write(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long val) +{ + switch (type) { + case hwmon_fan: + return max6639_write_fan(dev, attr, channel, val); + case hwmon_pwm: + return max6639_write_pwm(dev, attr, channel, val); + case hwmon_temp: + return max6639_write_temp(dev, attr, channel, val); + default: + return -EOPNOTSUPP; + } } =20 -static SENSOR_DEVICE_ATTR_RO(temp1_input, temp_input, 0); -static SENSOR_DEVICE_ATTR_RO(temp2_input, temp_input, 1); -static SENSOR_DEVICE_ATTR_RO(temp1_fault, temp_fault, 0); -static SENSOR_DEVICE_ATTR_RO(temp2_fault, temp_fault, 1); -static SENSOR_DEVICE_ATTR_RW(temp1_max, temp_max, 0); -static SENSOR_DEVICE_ATTR_RW(temp2_max, temp_max, 1); -static SENSOR_DEVICE_ATTR_RW(temp1_crit, temp_crit, 0); -static SENSOR_DEVICE_ATTR_RW(temp2_crit, temp_crit, 1); -static SENSOR_DEVICE_ATTR_RW(temp1_emergency, temp_emergency, 0); -static SENSOR_DEVICE_ATTR_RW(temp2_emergency, temp_emergency, 1); -static SENSOR_DEVICE_ATTR_RW(pwm1, pwm, 0); -static SENSOR_DEVICE_ATTR_RW(pwm2, pwm, 1); -static SENSOR_DEVICE_ATTR_RO(fan1_input, fan_input, 0); -static SENSOR_DEVICE_ATTR_RO(fan2_input, fan_input, 1); -static SENSOR_DEVICE_ATTR_RO(fan1_fault, alarm, 1); -static SENSOR_DEVICE_ATTR_RO(fan2_fault, alarm, 0); -static SENSOR_DEVICE_ATTR_RO(temp1_max_alarm, alarm, 3); -static SENSOR_DEVICE_ATTR_RO(temp2_max_alarm, alarm, 2); -static SENSOR_DEVICE_ATTR_RO(temp1_crit_alarm, alarm, 7); -static SENSOR_DEVICE_ATTR_RO(temp2_crit_alarm, alarm, 6); -static SENSOR_DEVICE_ATTR_RO(temp1_emergency_alarm, alarm, 5); -static SENSOR_DEVICE_ATTR_RO(temp2_emergency_alarm, alarm, 4); - - -static struct attribute *max6639_attrs[] =3D { - &sensor_dev_attr_temp1_input.dev_attr.attr, - &sensor_dev_attr_temp2_input.dev_attr.attr, - &sensor_dev_attr_temp1_fault.dev_attr.attr, - &sensor_dev_attr_temp2_fault.dev_attr.attr, - &sensor_dev_attr_temp1_max.dev_attr.attr, - &sensor_dev_attr_temp2_max.dev_attr.attr, - &sensor_dev_attr_temp1_crit.dev_attr.attr, - &sensor_dev_attr_temp2_crit.dev_attr.attr, - &sensor_dev_attr_temp1_emergency.dev_attr.attr, - &sensor_dev_attr_temp2_emergency.dev_attr.attr, - &sensor_dev_attr_pwm1.dev_attr.attr, - &sensor_dev_attr_pwm2.dev_attr.attr, - &sensor_dev_attr_fan1_input.dev_attr.attr, - &sensor_dev_attr_fan2_input.dev_attr.attr, - &sensor_dev_attr_fan1_fault.dev_attr.attr, - &sensor_dev_attr_fan2_fault.dev_attr.attr, - &sensor_dev_attr_temp1_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp2_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp1_crit_alarm.dev_attr.attr, - &sensor_dev_attr_temp2_crit_alarm.dev_attr.attr, - &sensor_dev_attr_temp1_emergency_alarm.dev_attr.attr, - &sensor_dev_attr_temp2_emergency_alarm.dev_attr.attr, +static umode_t max6639_is_visible(const void *data, + enum hwmon_sensor_types type, + u32 attr, int channel) +{ + switch (type) { + case hwmon_fan: + return max6639_fan_is_visible(data, attr, channel); + case hwmon_pwm: + return max6639_pwm_is_visible(data, attr, channel); + case hwmon_temp: + return max6639_temp_is_visible(data, attr, channel); + default: + return 0; + } +} + +static const struct hwmon_channel_info * const max6639_info[] =3D { + HWMON_CHANNEL_INFO(fan, + HWMON_F_INPUT | HWMON_F_FAULT | HWMON_F_PULSES, + HWMON_F_INPUT | HWMON_F_FAULT | HWMON_F_PULSES), + HWMON_CHANNEL_INFO(pwm, + HWMON_PWM_INPUT | HWMON_PWM_FREQ, + HWMON_PWM_INPUT | HWMON_PWM_FREQ), + HWMON_CHANNEL_INFO(temp, + HWMON_T_INPUT | HWMON_T_FAULT | HWMON_T_MAX | HWMON_T_MAX_ALARM | + HWMON_T_CRIT | HWMON_T_CRIT_ALARM | HWMON_T_EMERGENCY | + HWMON_T_EMERGENCY_ALARM, + HWMON_T_INPUT | HWMON_T_FAULT | HWMON_T_MAX | HWMON_T_MAX_ALARM | + HWMON_T_CRIT | HWMON_T_CRIT_ALARM | HWMON_T_EMERGENCY | + HWMON_T_EMERGENCY_ALARM), NULL }; -ATTRIBUTE_GROUPS(max6639); + +static const struct hwmon_ops max6639_hwmon_ops =3D { + .is_visible =3D max6639_is_visible, + .read =3D max6639_read, + .write =3D max6639_write, +}; + +static const struct hwmon_chip_info max6639_chip_info =3D { + .ops =3D &max6639_hwmon_ops, + .info =3D max6639_info, +}; =20 /* * returns respective index in rpm_ranges table @@ -355,11 +530,6 @@ static int rpm_range_to_reg(int range) return 1; /* default: 4000 RPM */ } =20 -static int max6639_set_ppr(struct max6639_data *data, u8 channel, u8 ppr) -{ - return regmap_write(data->regmap, MAX6639_REG_FAN_PPR(channel), ppr << 6); -} - static int max6639_init_client(struct i2c_client *client, struct max6639_data *data) { @@ -380,14 +550,16 @@ static int max6639_init_client(struct i2c_client *cli= ent, ppr =3D max6639_info->ppr; else ppr =3D 2; - ppr -=3D 1; + + data->ppr[0] =3D ppr; + data->ppr[1] =3D ppr; =20 if (max6639_info) rpm_range =3D rpm_range_to_reg(max6639_info->rpm_range); - data->rpm_range =3D rpm_range; + data->rpm_range[0] =3D rpm_range; + data->rpm_range[1] =3D rpm_range; =20 for (i =3D 0; i < MAX6639_NUM_CHANNELS; i++) { - /* Set Fan pulse per revolution */ err =3D max6639_set_ppr(data, i, ppr); if (err) @@ -395,15 +567,17 @@ static int max6639_init_client(struct i2c_client *cli= ent, =20 /* Fans config PWM, RPM */ err =3D regmap_write(data->regmap, MAX6639_REG_FAN_CONFIG1(i), - MAX6639_FAN_CONFIG1_PWM | rpm_range); + MAX6639_FAN_CONFIG1_PWM | data->rpm_range[i]); if (err) return err; =20 /* Fans PWM polarity high by default */ - if (max6639_info && max6639_info->pwm_polarity =3D=3D 0) - err =3D regmap_write(data->regmap, MAX6639_REG_FAN_CONFIG2a(i), 0x00); - else - err =3D regmap_write(data->regmap, MAX6639_REG_FAN_CONFIG2a(i), 0x02); + if (max6639_info) { + if (max6639_info->pwm_polarity =3D=3D 0) + err =3D regmap_write(data->regmap, MAX6639_REG_FAN_CONFIG2a(i), 0x00); + else + err =3D regmap_write(data->regmap, MAX6639_REG_FAN_CONFIG2a(i), 0x02); + } if (err) return err; =20 @@ -534,9 +708,13 @@ static int max6639_probe(struct i2c_client *client) if (err < 0) return err; =20 - hwmon_dev =3D devm_hwmon_device_register_with_groups(dev, client->name, - data, - max6639_groups); + hwmon_dev =3D devm_hwmon_device_register_with_info(dev, client->name, + data, &max6639_chip_info, + NULL); + + if (IS_ERR(hwmon_dev)) + return dev_err_probe(dev, PTR_ERR(hwmon_dev), + "unable to register hwmon device\n"); return PTR_ERR_OR_ZERO(hwmon_dev); } =20 base-commit: 5fbf8734fb36cf67339f599f0e51747a6aff690c --=20 2.42.0