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Clark wrote: > Adds temperature sensors to the ayn-ec hwmon interface. These read-only > values include Battery, Motherboard, Charger IC, vCore, and CPU Core, as > well as labels for each entry. The temperature values provided by the EC > are whole numbers in degrees Celsius. As hwmon expects millidegrees, we > scale the raw value up. > > `sensors` output after this patch is applied: > aynec-isa-0000 > Adapter: ISA adapter > fan1: 1876 RPM > Battery: +29.0°C > Motherboard: +30.0°C > Charger IC: +30.0°C > vCore: +36.0°C > CPU Core: +48.0°C > > Signed-off-by: Derek J. Clark > --- > drivers/platform/x86/ayn-ec.c | 89 +++++++++++++++++++++++++++++++++++ > 1 file changed, 89 insertions(+) > > diff --git a/drivers/platform/x86/ayn-ec.c b/drivers/platform/x86/ayn-ec.c > index 06f232bd10fa..b2054dc2358a 100644 > --- a/drivers/platform/x86/ayn-ec.c > +++ b/drivers/platform/x86/ayn-ec.c > @@ -50,8 +50,16 @@ > #define AYN_SENSOR_PWM_FAN_TEMP_4_REG 0x19 > #define AYN_SENSOR_PWM_FAN_TEMP_5_REG 0x1B > > +/* EC Teperature Sensors */ typo Teperature > +#define AYN_SENSOR_BAT_TEMP_REG 0x04 /* Battery */ > +#define AYN_SENSOR_CHARGE_TEMP_REG 0x07 /* Charger IC */ > +#define AYN_SENSOR_MB_TEMP_REG 0x05 /* Motherboard */ > +#define AYN_SENSOR_PROC_TEMP_REG 0x09 /* CPU Core */ > +#define AYN_SENSOR_VCORE_TEMP_REG 0x08 /* vCore */ > + > /* Handle ACPI lock mechanism */ > #define ACPI_LOCK_DELAY_MS 500 > + > enum ayn_model { > ayn_loki_max = 1, > ayn_loki_minipro, > @@ -63,6 +71,20 @@ struct ayn_device { > u32 ayn_lock; /* ACPI EC Lock */ > } drvdata; > > +struct thermal_sensor { > + char *name; > + int reg; > +}; > + > +static struct thermal_sensor thermal_sensors[] = { > + { "Battery", AYN_SENSOR_BAT_TEMP_REG }, > + { "Motherboard", AYN_SENSOR_MB_TEMP_REG }, > + { "Charger IC", AYN_SENSOR_CHARGE_TEMP_REG }, > + { "vCore", AYN_SENSOR_VCORE_TEMP_REG }, > + { "CPU Core", AYN_SENSOR_PROC_TEMP_REG }, > + {} > +}; > + > /* Handle ACPI lock mechanism */ > #define ACPI_LOCK_DELAY_MS 500 > > @@ -503,6 +525,63 @@ static SENSOR_DEVICE_ATTR_RW(pwm1_auto_point3_temp, pwm_curve, 7); > static SENSOR_DEVICE_ATTR_RW(pwm1_auto_point4_temp, pwm_curve, 8); > static SENSOR_DEVICE_ATTR_RW(pwm1_auto_point5_temp, pwm_curve, 9); > > +/** > + * thermal_sensor_show() - Read a thermal sensor attribute value. > + * > + * @dev: The attribute's parent device. > + * @attr: The attribute to read. > + * @buf: Buffer to read to. @buf: Buffer to write the result into. > + * > + * Return: Number of bytes read, or an error. > + */ > +static ssize_t thermal_sensor_show(struct device *dev, > + struct device_attribute *attr, char *buf) > +{ > + long ret, val; > + int i; > + > + i = to_sensor_dev_attr(attr)->index; > + > + ret = read_from_ec(thermal_sensors[i].reg, 1, &val); > + if (ret) > + return ret; > + > + val = val * 1000L; > + > + return sysfs_emit(buf, "%ld\n", val); > +} > + > +/** > + * thermal_sensor_label_show() - Read a thermal sensor attribute label. > + * > + * @dev: The attribute's parent device. > + * @attr: The attribute to read. > + * @buf: Buffer to read to. > + * > + * Return: Number of bytes read, or an error. > + */ > +static ssize_t thermal_sensor_label_show(struct device *dev, > + struct device_attribute *attr, > + char *buf) > +{ > + int i; > + > + i = to_sensor_dev_attr(attr)->index; int i = to_sensor_dev_attr(attr)->index; > + > + return sysfs_emit(buf, "%s\n", thermal_sensors[i].name); > +} > + > +static SENSOR_DEVICE_ATTR_RO(temp1_input, thermal_sensor, 0); > +static SENSOR_DEVICE_ATTR_RO(temp2_input, thermal_sensor, 1); > +static SENSOR_DEVICE_ATTR_RO(temp3_input, thermal_sensor, 2); > +static SENSOR_DEVICE_ATTR_RO(temp4_input, thermal_sensor, 3); > +static SENSOR_DEVICE_ATTR_RO(temp5_input, thermal_sensor, 4); > +static SENSOR_DEVICE_ATTR_RO(temp1_label, thermal_sensor_label, 0); > +static SENSOR_DEVICE_ATTR_RO(temp2_label, thermal_sensor_label, 1); > +static SENSOR_DEVICE_ATTR_RO(temp3_label, thermal_sensor_label, 2); > +static SENSOR_DEVICE_ATTR_RO(temp4_label, thermal_sensor_label, 3); > +static SENSOR_DEVICE_ATTR_RO(temp5_label, thermal_sensor_label, 4); > + > static struct attribute *ayn_sensors_attrs[] = { > &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr, > &sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr, > @@ -514,6 +593,16 @@ static struct attribute *ayn_sensors_attrs[] = { > &sensor_dev_attr_pwm1_auto_point4_temp.dev_attr.attr, > &sensor_dev_attr_pwm1_auto_point5_pwm.dev_attr.attr, > &sensor_dev_attr_pwm1_auto_point5_temp.dev_attr.attr, > + &sensor_dev_attr_temp1_input.dev_attr.attr, > + &sensor_dev_attr_temp1_label.dev_attr.attr, > + &sensor_dev_attr_temp2_input.dev_attr.attr, > + &sensor_dev_attr_temp2_label.dev_attr.attr, > + &sensor_dev_attr_temp3_input.dev_attr.attr, > + &sensor_dev_attr_temp3_label.dev_attr.attr, > + &sensor_dev_attr_temp4_input.dev_attr.attr, > + &sensor_dev_attr_temp4_label.dev_attr.attr, > + &sensor_dev_attr_temp5_input.dev_attr.attr, > + &sensor_dev_attr_temp5_label.dev_attr.attr, > NULL, > }; > Thanks, Alok