Hi Jean,
> Drop a lot of useless register defines, conversion macros, data structure
> members and update code. All these register values were read from the
> device but nothing is done out of them, so this is all dead code in
> practice.
>
> Signed-off-by: Jean Delvare <khali at linux-fr.org>
> ---
> Documentation/hwmon/lm85 | 11 ++----
> drivers/hwmon/lm85.c | 82 +---------------------------------------------
> 2 files changed, 6 insertions(+), 87 deletions(-)
>
> --- linux-2.6.25-rc8.orig/drivers/hwmon/lm85.c 2008-04-04 10:45:10.000000000 +0200
> +++ linux-2.6.25-rc8/drivers/hwmon/lm85.c 2008-04-04 15:41:53.000000000 +0200
> @@ -56,16 +56,9 @@ I2C_CLIENT_INSMOD_6(lm85b, lm85c, adm102
>
> #define LM85_REG_PWM(nr) (0x30 + (nr))
>
> -#define ADT7463_REG_OPPOINT(nr) (0x33 + (nr))
> -
> -#define ADT7463_REG_TMIN_CTL1 0x36
> -#define ADT7463_REG_TMIN_CTL2 0x37
> -
> -#define LM85_REG_DEVICE 0x3d
> #define LM85_REG_COMPANY 0x3e
> #define LM85_REG_VERSTEP 0x3f
> /* These are the recognized values for the above regs */
> -#define LM85_DEVICE_ADX 0x27
> #define LM85_COMPANY_NATIONAL 0x01
> #define LM85_COMPANY_ANALOG_DEV 0x41
> #define LM85_COMPANY_SMSC 0x5c
> @@ -91,27 +84,14 @@ I2C_CLIENT_INSMOD_6(lm85b, lm85c, adm102
> #define LM85_REG_AFAN_CONFIG(nr) (0x5c + (nr))
> #define LM85_REG_AFAN_RANGE(nr) (0x5f + (nr))
> #define LM85_REG_AFAN_SPIKE1 0x62
> -#define LM85_REG_AFAN_SPIKE2 0x63
> #define LM85_REG_AFAN_MINPWM(nr) (0x64 + (nr))
> #define LM85_REG_AFAN_LIMIT(nr) (0x67 + (nr))
> #define LM85_REG_AFAN_CRITICAL(nr) (0x6a + (nr))
> #define LM85_REG_AFAN_HYST1 0x6d
> #define LM85_REG_AFAN_HYST2 0x6e
>
> -#define LM85_REG_TACH_MODE 0x74
> -#define LM85_REG_SPINUP_CTL 0x75
> -
> -#define ADM1027_REG_TEMP_OFFSET(nr) (0x70 + (nr))
> -#define ADM1027_REG_CONFIG2 0x73
> -#define ADM1027_REG_INTMASK1 0x74
> -#define ADM1027_REG_INTMASK2 0x75
> #define ADM1027_REG_EXTEND_ADC1 0x76
> #define ADM1027_REG_EXTEND_ADC2 0x77
> -#define ADM1027_REG_CONFIG3 0x78
> -#define ADM1027_REG_FAN_PPR 0x7b
> -
> -#define ADT7463_REG_THERM 0x79
> -#define ADT7463_REG_THERM_LIMIT 0x7A
>
> #define EMC6D100_REG_ALARM3 0x7d
> /* IN5, IN6 and IN7 */
> @@ -264,13 +244,6 @@ static int ZONE_TO_REG(int zone)
> #define HYST_TO_REG(val) SENSORS_LIMIT(((val) + 500) / 1000, 0, 15)
> #define HYST_FROM_REG(val) ((val) * 1000)
>
> -#define OFFSET_TO_REG(val) SENSORS_LIMIT((val) / 25, -127, 127)
> -#define OFFSET_FROM_REG(val) ((val) * 25)
> -
> -#define PPR_MASK(fan) (0x03 << ((fan) * 2))
> -#define PPR_TO_REG(val, fan) (SENSORS_LIMIT((val) - 1, 0, 3) << ((fan) * 2))
> -#define PPR_FROM_REG(val, fan) ((((val) >> ((fan) * 2)) & 0x03) + 1)
> -
> /* Chip sampling rates
> *
> * Some sensors are not updated more frequently than once per second
> @@ -331,23 +304,15 @@ struct lm85_data {
> s8 temp[3]; /* Register value */
> s8 temp_min[3]; /* Register value */
> s8 temp_max[3]; /* Register value */
> - s8 temp_offset[3]; /* Register value */
> u16 fan[4]; /* Register value */
> u16 fan_min[4]; /* Register value */
> u8 pwm[3]; /* Register value */
> - u8 spinup_ctl; /* Register encoding, combined */
> - u8 tach_mode; /* Register encoding, combined */
> u8 temp_ext[3]; /* Decoded values */
> u8 in_ext[8]; /* Decoded values */
> - u8 fan_ppr; /* Register value */
> - u8 smooth[3]; /* Register encoding */
> + u8 smooth[1]; /* Register encoding */
> u8 vid; /* Register value */
> u8 vrm; /* VRM version */
> u8 syncpwm3; /* Saved PWM3 for TACH 2,3,4 config */
> - u8 oppoint[3]; /* Register value */
> - u16 tmin_ctl; /* Register value */
> - unsigned long therm_total; /* Cummulative therm count */
> - u8 therm_limit; /* Register value */
> u32 alarms; /* Register encoding, combined */
> struct lm85_autofan autofan[3];
> struct lm85_zone zone[3];
> @@ -1336,10 +1301,6 @@ static int lm85_read_value(struct i2c_cl
> res = i2c_smbus_read_byte_data(client, reg) & 0xff;
> res |= i2c_smbus_read_byte_data(client, reg + 1) << 8;
> break;
> - case ADT7463_REG_TMIN_CTL1: /* Read WORD MSB, LSB */
> - res = i2c_smbus_read_byte_data(client, reg) << 8;
> - res |= i2c_smbus_read_byte_data(client, reg + 1) & 0xff;
> - break;
> default: /* Read BYTE data */
> res = i2c_smbus_read_byte_data(client, reg);
> break;
> @@ -1366,11 +1327,6 @@ static int lm85_write_value(struct i2c_c
> res |= i2c_smbus_write_byte_data(client, reg + 1,
> (value >> 8) & 0xff);
> break;
> - case ADT7463_REG_TMIN_CTL1: /* Write WORD MSB, LSB */
> - res = i2c_smbus_write_byte_data(client, reg,
> - (value >> 8) & 0xff);
> - res |= i2c_smbus_write_byte_data(client, reg + 1, value & 0xff);
> - break;
> default: /* Write BYTE data */
> res = i2c_smbus_write_byte_data(client, reg, value);
> break;
> @@ -1482,12 +1438,7 @@ static struct lm85_data *lm85_update_dev
>
> data->alarms = lm85_read_value(client, LM85_REG_ALARM1);
>
> - if (data->type == adt7463) {
> - if (data->therm_total < ULONG_MAX - 256) {
> - data->therm_total +=
> - lm85_read_value(client, ADT7463_REG_THERM);
> - }
> - } else if (data->type == emc6d100) {
> + if (data->type == emc6d100) {
> /* Three more voltage sensors */
> for (i = 5; i <= 7; ++i) {
> data->in[i] = lm85_read_value(client,
> @@ -1584,9 +1535,6 @@ static struct lm85_data *lm85_update_dev
> data->autofan[0].min_off = (i & 0x20) != 0;
> data->autofan[1].min_off = (i & 0x40) != 0;
> data->autofan[2].min_off = (i & 0x80) != 0;
> - i = lm85_read_value(client, LM85_REG_AFAN_SPIKE2);
> - data->smooth[1] = (i>>4) & 0x0f;
> - data->smooth[2] = i & 0x0f;
>
> i = lm85_read_value(client, LM85_REG_AFAN_HYST1);
> data->zone[0].hyst = (i>>4) & 0x0f;
> @@ -1595,32 +1543,6 @@ static struct lm85_data *lm85_update_dev
> i = lm85_read_value(client, LM85_REG_AFAN_HYST2);
> data->zone[2].hyst = (i>>4) & 0x0f;
>
> - if (data->type == lm85b || data->type == lm85c) {
> - data->tach_mode = lm85_read_value(client,
> - LM85_REG_TACH_MODE);
> - data->spinup_ctl = lm85_read_value(client,
> - LM85_REG_SPINUP_CTL);
> - } else if (data->type == adt7463 || data->type == adm1027) {
> - if (data->type == adt7463) {
> - for (i = 0; i <= 2; ++i) {
> - data->oppoint[i] = lm85_read_value(client,
> - ADT7463_REG_OPPOINT(i));
> - }
> - data->tmin_ctl = lm85_read_value(client,
> - ADT7463_REG_TMIN_CTL1);
> - data->therm_limit = lm85_read_value(client,
> - ADT7463_REG_THERM_LIMIT);
> - }
> - for (i = 0; i <= 2; ++i) {
> - data->temp_offset[i] = lm85_read_value(client,
> - ADM1027_REG_TEMP_OFFSET(i));
> - }
> - data->tach_mode = lm85_read_value(client,
> - ADM1027_REG_CONFIG3);
> - data->fan_ppr = lm85_read_value(client,
> - ADM1027_REG_FAN_PPR);
> - }
> -
> data->last_config = jiffies;
> } /* last_config */
>
> --- linux-2.6.25-rc8.orig/Documentation/hwmon/lm85 2008-04-04 15:41:52.000000000 +0200
> +++ linux-2.6.25-rc8/Documentation/hwmon/lm85 2008-04-04 15:46:40.000000000 +0200
> @@ -96,11 +96,6 @@ initial testing of the ADM1027 it was 1.
> confirmed this "bug". The ADT7463 is reported to work as described in the
> documentation. The current lm85 driver does not show the offset register.
>
> -The ADT7463 has a THERM asserted counter. This counter has a 22.76ms
> -resolution and a range of 5.8 seconds. The driver implements a 32-bit
> -accumulator of the counter value to extend the range to over a year. The
> -counter will stay at it's max value until read.
> -
> See the vendor datasheets for more information. There is application note
> from National (AN-1260) with some additional information about the LM85.
> The Analog Devices datasheet is very detailed and describes a procedure for
> @@ -206,13 +201,15 @@ Configuration choices:
>
> The National LM85's have two vendor specific configuration
> features. Tach. mode and Spinup Control. For more details on these,
> -see the LM85 datasheet or Application Note AN-1260.
> +see the LM85 datasheet or Application Note AN-1260. These features
> +are not currently supported by the lm85 driver.
>
> The Analog Devices ADM1027 has several vendor specific enhancements.
> The number of pulses-per-rev of the fans can be set, Tach monitoring
> can be optimized for PWM operation, and an offset can be applied to
> the temperatures to compensate for systemic errors in the
> -measurements.
> +measurements. These features are not currently supported by the lm85
> +driver.
>
> In addition to the ADM1027 features, the ADT7463 also has Tmin control
> and THERM asserted counts. Automatic Tmin control acts to adjust the
Wow, sure a lot of unused junk. The patch looks good but doesn't apply
cleanly over the revised patch 02/10. Could you please refresh and
resend it?
...juerg
