redonkable/remarkable-linux
redonkable/remarkable-linux
1
0
Fork 0
Code Releases Activity

hwmon/f71882fg: Fix temp1 sensor type reporting

Browse source 
The code for determining a sensort type for temp1 was based on me misreading
the datasheet, the tested registers do not determine what kind of sensor
is actually reported as temp1. Instead the enable / disable certain additional
digital sensor readouts throug PECI / AMDSI, etc. Independent of these settings
temp1 is still reading an external BJT or thermistor as configured by the
Temperature Sensor Type Register (0x6b).

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
This commit is contained in:
Hans de Goede 2011-03-09 20:57:07 +01:00 committed by Guenter Roeck
parent 02309ad2b8
commit 44c4dc521e
1 changed files with 3 additions and 32 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

35
drivers/hwmon/f71882fg.c
View file

@ -1,6 +1,6 @@
/***************************************************************************
* Copyright (C) 2006 by Hans Edgington <hans@edgington.nl> *
* Copyright (C) 2007-2009 Hans de Goede <hdegoede@redhat.com> *
* Copyright (C) 2007-2011 Hans de Goede <hdegoede@redhat.com> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
@ -57,8 +57,6 @@
#define ADDR_REG_OFFSET 5
#define DATA_REG_OFFSET 6
#define F71882FG_REG_PECI 0x0A
#define F71882FG_REG_IN_STATUS 0x12 /* f71882fg only */
#define F71882FG_REG_IN_BEEP 0x13 /* f71882fg only */
#define F71882FG_REG_IN(nr) (0x20 + (nr))
@ -943,7 +941,7 @@ static u16 f71882fg_read_temp(struct f71882fg_data *data, int nr)
static struct f71882fg_data *f71882fg_update_device(struct device *dev)
{
struct f71882fg_data *data = dev_get_drvdata(dev);
int nr, reg = 0, reg2;
int nr, reg;
int nr_fans = (data->type == f71882fg) ? 4 : 3;
int nr_ins = (data->type == f71858fg || data->type == f8000) ? 3 : 9;
@ -980,38 +978,11 @@ static struct f71882fg_data *f71882fg_update_device(struct device *dev)
F71882FG_REG_FAN_BEEP);
data->temp_beep = f71882fg_read8(data,
F71882FG_REG_TEMP_BEEP);
/* Have to hardcode type, because temp1 is special */
reg = f71882fg_read8(data, F71882FG_REG_TEMP_TYPE);
data->temp_type[1] = (reg & 0x02) ? 2 : 4;
data->temp_type[2] = (reg & 0x04) ? 2 : 4;
data->temp_type[3] = (reg & 0x08) ? 2 : 4;
}
/* Determine temp index 1 sensor type */
if (data->type == f71889fg) {
reg2 = f71882fg_read8(data, F71882FG_REG_START);
switch ((reg2 & 0x60) >> 5) {
case 0x00: /* BJT / Thermistor */
data->temp_type[1] = (reg & 0x02) ? 2 : 4;
break;
case 0x01: /* AMDSI */
data->temp_type[1] = 5;
break;
case 0x02: /* PECI */
case 0x03: /* Ibex Peak ?? Report as PECI for now */
data->temp_type[1] = 6;
break;
}
} else {
reg2 = f71882fg_read8(data, F71882FG_REG_PECI);
if ((reg2 & 0x03) == 0x01)
data->temp_type[1] = 6; /* PECI */
else if ((reg2 & 0x03) == 0x02)
data->temp_type[1] = 5; /* AMDSI */
else if (data->type == f71862fg ||
data->type == f71882fg)
data->temp_type[1] = (reg & 0x02) ? 2 : 4;
else /* f71858fg and f8000 only support BJT */
data->temp_type[1] = 2;
}
data->pwm_enable = f71882fg_read8(data,
F71882FG_REG_PWM_ENABLE);