From: Juerg Haefliger Date: Wed, 12 Jan 2011 20:55:13 +0000 (+0100) Subject: hwmon: (dme1737) Add support for in7 for SCH5127 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=d4b94e1fa6c69fd74abca5b7db1ab350d65ce89b;p=linux-beck.git hwmon: (dme1737) Add support for in7 for SCH5127 Add support for the 1.5V voltage monitoring input (in7) of the SMSC SCH5127 chip. Signed-off-by: Juerg Haefliger Signed-off-by: Jean Delvare --- diff --git a/Documentation/hwmon/dme1737 b/Documentation/hwmon/dme1737 index fc5df7654d63..4d2935145a1c 100644 --- a/Documentation/hwmon/dme1737 +++ b/Documentation/hwmon/dme1737 @@ -42,7 +42,7 @@ Description This driver implements support for the hardware monitoring capabilities of the SMSC DME1737 and Asus A8000 (which are the same), SMSC SCH5027, SCH311x, and SCH5127 Super-I/O chips. These chips feature monitoring of 3 temp sensors -temp[1-3] (2 remote diodes and 1 internal), 7 voltages in[0-6] (6 external and +temp[1-3] (2 remote diodes and 1 internal), 8 voltages in[0-7] (7 external and 1 internal) and up to 6 fan speeds fan[1-6]. Additionally, the chips implement up to 5 PWM outputs pwm[1-3,5-6] for controlling fan speeds both manually and automatically. @@ -105,6 +105,7 @@ SCH5127: in4: V1_IN 0V - 1.5V in5: VTR (+3.3V standby) 0V - 4.38V in6: Vbat (+3.0V) 0V - 4.38V + in7: Vtrip (+1.5V) 0V - 1.99V Each voltage input has associated min and max limits which trigger an alarm when crossed. @@ -217,10 +218,10 @@ cpu0_vid RO CPU core reference voltage in vrm RW Voltage regulator module version number. -in[0-6]_input RO Measured voltage in millivolts. -in[0-6]_min RW Low limit for voltage input. -in[0-6]_max RW High limit for voltage input. -in[0-6]_alarm RO Voltage input alarm. Returns 1 if +in[0-7]_input RO Measured voltage in millivolts. +in[0-7]_min RW Low limit for voltage input. +in[0-7]_max RW High limit for voltage input. +in[0-7]_alarm RO Voltage input alarm. Returns 1 if voltage input is or went outside the associated min-max range, 0 otherwise. @@ -324,3 +325,4 @@ fan5 opt opt pwm5 opt opt fan6 opt opt pwm6 opt opt +in7 yes diff --git a/drivers/hwmon/dme1737.c b/drivers/hwmon/dme1737.c index e9a610bfd0cc..ec683eabd7ac 100644 --- a/drivers/hwmon/dme1737.c +++ b/drivers/hwmon/dme1737.c @@ -77,12 +77,14 @@ enum chips { dme1737, sch5027, sch311x, sch5127 }; * in4 +12V * in5 VTR (+3.3V stby) * in6 Vbat + * in7 Vtrip (sch5127 only) * * --------------------------------------------------------------------- */ -/* Voltages (in) numbered 0-6 (ix) */ -#define DME1737_REG_IN(ix) ((ix) < 5 ? 0x20 + (ix) \ - : 0x94 + (ix)) +/* Voltages (in) numbered 0-7 (ix) */ +#define DME1737_REG_IN(ix) ((ix) < 5 ? 0x20 + (ix) : \ + (ix) < 7 ? 0x94 + (ix) : \ + 0x1f) #define DME1737_REG_IN_MIN(ix) ((ix) < 5 ? 0x44 + (ix) * 2 \ : 0x91 + (ix) * 2) #define DME1737_REG_IN_MAX(ix) ((ix) < 5 ? 0x45 + (ix) * 2 \ @@ -101,10 +103,11 @@ enum chips { dme1737, sch5027, sch311x, sch5127 }; * IN_TEMP_LSB(1) = [temp3, temp1] * IN_TEMP_LSB(2) = [in4, temp2] * IN_TEMP_LSB(3) = [in3, in0] - * IN_TEMP_LSB(4) = [in2, in1] */ + * IN_TEMP_LSB(4) = [in2, in1] + * IN_TEMP_LSB(5) = [res, in7] */ #define DME1737_REG_IN_TEMP_LSB(ix) (0x84 + (ix)) -static const u8 DME1737_REG_IN_LSB[] = {3, 4, 4, 3, 2, 0, 0}; -static const u8 DME1737_REG_IN_LSB_SHL[] = {4, 4, 0, 0, 0, 0, 4}; +static const u8 DME1737_REG_IN_LSB[] = {3, 4, 4, 3, 2, 0, 0, 5}; +static const u8 DME1737_REG_IN_LSB_SHL[] = {4, 4, 0, 0, 0, 0, 4, 4}; static const u8 DME1737_REG_TEMP_LSB[] = {1, 2, 1}; static const u8 DME1737_REG_TEMP_LSB_SHL[] = {4, 4, 0}; @@ -145,7 +148,7 @@ static const u8 DME1737_REG_TEMP_LSB_SHL[] = {4, 4, 0}; #define DME1737_REG_ALARM1 0x41 #define DME1737_REG_ALARM2 0x42 #define DME1737_REG_ALARM3 0x83 -static const u8 DME1737_BIT_ALARM_IN[] = {0, 1, 2, 3, 8, 16, 17}; +static const u8 DME1737_BIT_ALARM_IN[] = {0, 1, 2, 3, 8, 16, 17, 18}; static const u8 DME1737_BIT_ALARM_TEMP[] = {4, 5, 6}; static const u8 DME1737_BIT_ALARM_FAN[] = {10, 11, 12, 13, 22, 23}; @@ -190,6 +193,7 @@ static const u8 DME1737_BIT_ALARM_FAN[] = {10, 11, 12, 13, 22, 23}; #define HAS_PWM_MIN (1 << 4) /* bit 4 */ #define HAS_FAN(ix) (1 << ((ix) + 5)) /* bits 5-10 */ #define HAS_PWM(ix) (1 << ((ix) + 11)) /* bits 11-16 */ +#define HAS_IN7 (1 << 17) /* bit 17 */ /* --------------------------------------------------------------------- * Data structures and manipulation thereof @@ -213,9 +217,9 @@ struct dme1737_data { u32 has_features; /* Register values */ - u16 in[7]; - u8 in_min[7]; - u8 in_max[7]; + u16 in[8]; + u8 in_min[8]; + u8 in_max[8]; s16 temp[3]; s8 temp_min[3]; s8 temp_max[3]; @@ -247,7 +251,7 @@ static const int IN_NOMINAL_SCH311x[] = {2500, 1500, 3300, 5000, 12000, 3300, static const int IN_NOMINAL_SCH5027[] = {5000, 2250, 3300, 1125, 1125, 3300, 3300}; static const int IN_NOMINAL_SCH5127[] = {2500, 2250, 3300, 1125, 1125, 3300, - 3300}; + 3300, 1500}; #define IN_NOMINAL(type) ((type) == sch311x ? IN_NOMINAL_SCH311x : \ (type) == sch5027 ? IN_NOMINAL_SCH5027 : \ (type) == sch5127 ? IN_NOMINAL_SCH5127 : \ @@ -580,7 +584,7 @@ static struct dme1737_data *dme1737_update_device(struct device *dev) { struct dme1737_data *data = dev_get_drvdata(dev); int ix; - u8 lsb[5]; + u8 lsb[6]; mutex_lock(&data->update_lock); @@ -603,6 +607,9 @@ static struct dme1737_data *dme1737_update_device(struct device *dev) /* Voltage inputs are stored as 16 bit values even * though they have only 12 bits resolution. This is * to make it consistent with the temp inputs. */ + if (ix == 7 && !(data->has_features & HAS_IN7)) { + continue; + } data->in[ix] = dme1737_read(data, DME1737_REG_IN(ix)) << 8; data->in_min[ix] = dme1737_read(data, @@ -635,10 +642,16 @@ static struct dme1737_data *dme1737_update_device(struct device *dev) * which the registers are read (MSB first, then LSB) is * important! */ for (ix = 0; ix < ARRAY_SIZE(lsb); ix++) { + if (ix == 5 && !(data->has_features & HAS_IN7)) { + continue; + } lsb[ix] = dme1737_read(data, DME1737_REG_IN_TEMP_LSB(ix)); } for (ix = 0; ix < ARRAY_SIZE(data->in); ix++) { + if (ix == 7 && !(data->has_features & HAS_IN7)) { + continue; + } data->in[ix] |= (lsb[DME1737_REG_IN_LSB[ix]] << DME1737_REG_IN_LSB_SHL[ix]) & 0xf0; } @@ -762,7 +775,7 @@ static struct dme1737_data *dme1737_update_device(struct device *dev) /* --------------------------------------------------------------------- * Voltage sysfs attributes - * ix = [0-5] + * ix = [0-7] * --------------------------------------------------------------------- */ #define SYS_IN_INPUT 0 @@ -1439,7 +1452,7 @@ static ssize_t show_name(struct device *dev, struct device_attribute *attr, * Sysfs device attribute defines and structs * --------------------------------------------------------------------- */ -/* Voltages 0-6 */ +/* Voltages 0-7 */ #define SENSOR_DEVICE_ATTR_IN(ix) \ static SENSOR_DEVICE_ATTR_2(in##ix##_input, S_IRUGO, \ @@ -1458,6 +1471,7 @@ SENSOR_DEVICE_ATTR_IN(3); SENSOR_DEVICE_ATTR_IN(4); SENSOR_DEVICE_ATTR_IN(5); SENSOR_DEVICE_ATTR_IN(6); +SENSOR_DEVICE_ATTR_IN(7); /* Temperatures 1-3 */ @@ -1695,6 +1709,21 @@ static const struct attribute_group dme1737_zone_hyst_group = { .attrs = dme1737_zone_hyst_attr, }; +/* The following struct holds voltage in7 related attributes, which + * are not available in all chips. The following chips support them: + * SCH5127 */ +static struct attribute *dme1737_in7_attr[] = { + &sensor_dev_attr_in7_input.dev_attr.attr, + &sensor_dev_attr_in7_min.dev_attr.attr, + &sensor_dev_attr_in7_max.dev_attr.attr, + &sensor_dev_attr_in7_alarm.dev_attr.attr, + NULL +}; + +static const struct attribute_group dme1737_in7_group = { + .attrs = dme1737_in7_attr, +}; + /* The following structs hold the PWM attributes, some of which are optional. * Their creation depends on the chip configuration which is determined during * module load. */ @@ -1986,6 +2015,9 @@ static void dme1737_remove_files(struct device *dev) if (data->has_features & HAS_ZONE_HYST) { sysfs_remove_group(&dev->kobj, &dme1737_zone_hyst_group); } + if (data->has_features & HAS_IN7) { + sysfs_remove_group(&dev->kobj, &dme1737_in7_group); + } sysfs_remove_group(&dev->kobj, &dme1737_group); if (!data->client) { @@ -2030,6 +2062,12 @@ static int dme1737_create_files(struct device *dev) &dme1737_zone_hyst_group))) { goto exit_remove; } + if (data->has_features & HAS_IN7) { + err = sysfs_create_group(&dev->kobj, &dme1737_in7_group); + if (err) { + goto exit_remove; + } + } /* Create fan sysfs attributes */ for (ix = 0; ix < ARRAY_SIZE(dme1737_fan_group); ix++) { @@ -2188,7 +2226,7 @@ static int dme1737_init_device(struct device *dev) data->has_features |= HAS_ZONE3; break; case sch5127: - data->has_features |= HAS_FAN(2) | HAS_PWM(2); + data->has_features |= HAS_FAN(2) | HAS_PWM(2) | HAS_IN7; break; default: break;