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Message-ID: <20100324092357.GE6368@salidar.me.mortis.eu>
Date: Wed, 24 Mar 2010 10:23:58 +0100
From: Giel van Schijndel <me@...tis.eu>
To: Hans de Goede <hdegoede@...hat.com>
Cc: Jean Delvare <khali@...ux-fr.org>,
Jonathan Cameron <jic23@....ac.uk>,
Laurens Leemans <laurens@...nips.com>,
lm-sensors@...sensors.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/4] hwmon: f71882fg: Add support for the Fintek F71808E
On Wed, Mar 24, 2010 at 09:25:08AM +0100, Hans de Goede wrote:
> See comments inline.
>
> On 03/24/2010 12:12 AM, Giel van Schijndel wrote:
>> Allow device probing to recognise the Fintek F71808E.
>>
>> Sysfs interface:
>> * Fan/pwm control is the same as for F71889FG
>> * Temperature and voltage sensor handling is largely the same as for
>> the F71889FG
>> - Has one temperature sensor less (doesn't have temp3)
>> - Misses one voltage sensor (doesn't have V6, thus in6_input refers to
>> what in7_input refers for F71889FG)
>>
>> For the purpose of the sysfs interface fxxxx_in_temp_attr[] is split up
>> such that it can largely be reused.
>> ---
>> Documentation/hwmon/f71882fg | 4 ++
>> drivers/hwmon/Kconfig | 6 ++--
>> drivers/hwmon/f71882fg.c | 80 +++++++++++++++++++++++++++++++++++++----
>> 3 files changed, 79 insertions(+), 11 deletions(-)
>>
>> diff --git a/drivers/hwmon/f71882fg.c b/drivers/hwmon/f71882fg.c
>> index 25e1cad..b290b87 100644
>> --- a/drivers/hwmon/f71882fg.c
>> +++ b/drivers/hwmon/f71882fg.c
>> @@ -1974,8 +2002,27 @@ static int __devinit f71882fg_probe(struct platform_device *pdev)
>> /* fall through! */
>> case f71862fg:
>> err = f71882fg_create_sysfs_files(pdev,
>> - fxxxx_in_temp_attr,
>> - ARRAY_SIZE(fxxxx_in_temp_attr));
>> + f71862_temp_attr,
>> + ARRAY_SIZE(f71862_temp_attr));
>> + if (err)
>> + goto exit_unregister_sysfs;
>> + err = f71882fg_create_sysfs_files(pdev,
>> + fxxxx_in_attr,
>> + ARRAY_SIZE(fxxxx_in_attr));
>> + if (err)
>> + goto exit_unregister_sysfs;
>> + /* fall through! */
>
> Ugh, please don't fall through, and then have an if below to only do
> some parts of the case falling through. This is quite confusing
> at first I thought your code was buggy I had to read it twice to notice
> the if. Instead just duplicate the following lines:
>> + err = f71882fg_create_sysfs_files(pdev,
>> + fxxxx_temp_attr,
>> + ARRAY_SIZE(fxxxx_temp_attr));
> In the f71862fg case, end the f71862fg case with a break and remove
> the if test from the f71808fg case.
>
>> + case f71808fg:
>> + if (data->type == f71808fg) {
>> + err = f71882fg_create_sysfs_files(pdev,
>> + f71808_in_attr,
>> + ARRAY_SIZE(f71808_in_attr));
>> + if (err)
>> + goto exit_unregister_sysfs;
>> + }
>> + err = f71882fg_create_sysfs_files(pdev,
>> + fxxxx_temp_attr,
>> + ARRAY_SIZE(fxxxx_temp_attr));
>> break;
>> case f8000:
>> err = f71882fg_create_sysfs_files(pdev,
>> @@ -2126,8 +2175,20 @@ static int f71882fg_remove(struct platform_device *pdev)
>> /* fall through! */
>> case f71862fg:
>> f71882fg_remove_sysfs_files(pdev,
>> - fxxxx_in_temp_attr,
>> - ARRAY_SIZE(fxxxx_in_temp_attr));
>> + f71862_temp_attr,
>> + ARRAY_SIZE(f71862_temp_attr));
>> + f71882fg_remove_sysfs_files(pdev,
>> + fxxxx_in_attr,
>> + ARRAY_SIZE(fxxxx_in_attr));
>> + /* fall through! */
>
> Idem.
Ack. New and improved patch follows this line.
========================================================================
hwmon: f71882fg: Add support for the Fintek F71808E
Allow device probing to recognise the Fintek F71808E.
Sysfs interface:
* Fan/pwm control is the same as for F71889FG
* Temperature and voltage sensor handling is largely the same as for
the F71889FG
- Has one temperature sensor less (doesn't have temp3)
- Misses one voltage sensor (doesn't have V6, thus in6_input refers to
what in7_input refers for F71889FG)
For the purpose of the sysfs interface fxxxx_in_temp_attr[] is split up
such that it can largely be reused.
Signed-off-by: Giel van Schijndel <me@...tis.eu>
---
Documentation/hwmon/f71882fg | 4 ++
drivers/hwmon/Kconfig | 6 ++--
drivers/hwmon/f71882fg.c | 83 ++++++++++++++++++++++++++++++++++++++----
3 files changed, 82 insertions(+), 11 deletions(-)
diff --git a/Documentation/hwmon/f71882fg b/Documentation/hwmon/f71882fg
index a7952c2..1a07fd6 100644
--- a/Documentation/hwmon/f71882fg
+++ b/Documentation/hwmon/f71882fg
@@ -2,6 +2,10 @@ Kernel driver f71882fg
======================
Supported chips:
+ * Fintek F71808E
+ Prefix: 'f71808fg'
+ Addresses scanned: none, address read from Super I/O config space
+ Datasheet: Not public
* Fintek F71858FG
Prefix: 'f71858fg'
Addresses scanned: none, address read from Super I/O config space
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index e4595e6..7053608 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -332,11 +332,11 @@ config SENSORS_F71805F
will be called f71805f.
config SENSORS_F71882FG
- tristate "Fintek F71858FG, F71862FG, F71882FG, F71889FG and F8000"
+ tristate "Fintek F71808E, F71858FG, F71862FG, F71882FG, F71889FG and F8000"
depends on EXPERIMENTAL
help
- If you say yes here you get support for hardware monitoring
- features of the Fintek F71858FG, F71862FG/71863FG, F71882FG/F71883FG,
+ If you say yes here you get support for hardware monitoring features
+ of the Fintek F71808E, F71858FG, F71862FG/71863FG, F71882FG/F71883FG,
F71889FG and F8000 Super-I/O chips.
This driver can also be built as a module. If so, the module
diff --git a/drivers/hwmon/f71882fg.c b/drivers/hwmon/f71882fg.c
index 28bcbac..0b89bb6 100644
--- a/drivers/hwmon/f71882fg.c
+++ b/drivers/hwmon/f71882fg.c
@@ -45,6 +45,7 @@
#define SIO_REG_ADDR 0x60 /* Logical device address (2 bytes) */
#define SIO_FINTEK_ID 0x1934 /* Manufacturers ID */
+#define SIO_F71808_ID 0x0901 /* Chipset ID */
#define SIO_F71858_ID 0x0507 /* Chipset ID */
#define SIO_F71862_ID 0x0601 /* Chipset ID */
#define SIO_F71882_ID 0x0541 /* Chipset ID */
@@ -96,9 +97,10 @@ static unsigned short force_id;
module_param(force_id, ushort, 0);
MODULE_PARM_DESC(force_id, "Override the detected device ID");
-enum chips { f71858fg, f71862fg, f71882fg, f71889fg, f8000 };
+enum chips { f71808fg, f71858fg, f71862fg, f71882fg, f71889fg, f8000 };
static const char *f71882fg_names[] = {
+ "f71808fg",
"f71858fg",
"f71862fg",
"f71882fg",
@@ -306,8 +308,8 @@ static struct sensor_device_attribute_2 f71858fg_in_temp_attr[] = {
SENSOR_ATTR_2(temp3_fault, S_IRUGO, show_temp_fault, NULL, 0, 2),
};
-/* Temp and in attr common to the f71862fg, f71882fg and f71889fg */
-static struct sensor_device_attribute_2 fxxxx_in_temp_attr[] = {
+/* In attr common to the f71862fg, f71882fg and f71889fg */
+static struct sensor_device_attribute_2 fxxxx_in_attr[] = {
SENSOR_ATTR_2(in0_input, S_IRUGO, show_in, NULL, 0, 0),
SENSOR_ATTR_2(in1_input, S_IRUGO, show_in, NULL, 0, 1),
SENSOR_ATTR_2(in2_input, S_IRUGO, show_in, NULL, 0, 2),
@@ -317,6 +319,22 @@ static struct sensor_device_attribute_2 fxxxx_in_temp_attr[] = {
SENSOR_ATTR_2(in6_input, S_IRUGO, show_in, NULL, 0, 6),
SENSOR_ATTR_2(in7_input, S_IRUGO, show_in, NULL, 0, 7),
SENSOR_ATTR_2(in8_input, S_IRUGO, show_in, NULL, 0, 8),
+};
+
+/* In attr for the f71808fg */
+static struct sensor_device_attribute_2 f71808_in_attr[] = {
+ SENSOR_ATTR_2(in0_input, S_IRUGO, show_in, NULL, 0, 0),
+ SENSOR_ATTR_2(in1_input, S_IRUGO, show_in, NULL, 0, 1),
+ SENSOR_ATTR_2(in2_input, S_IRUGO, show_in, NULL, 0, 2),
+ SENSOR_ATTR_2(in3_input, S_IRUGO, show_in, NULL, 0, 3),
+ SENSOR_ATTR_2(in4_input, S_IRUGO, show_in, NULL, 0, 4),
+ SENSOR_ATTR_2(in5_input, S_IRUGO, show_in, NULL, 0, 5),
+ SENSOR_ATTR_2(in6_input, S_IRUGO, show_in, NULL, 0, 7),
+ SENSOR_ATTR_2(in7_input, S_IRUGO, show_in, NULL, 0, 8),
+};
+
+/* Temp attr common to the f71808fg, f71862fg, f71882fg and f71889fg */
+static struct sensor_device_attribute_2 fxxxx_temp_attr[] = {
SENSOR_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, 0, 1),
SENSOR_ATTR_2(temp1_max, S_IRUGO|S_IWUSR, show_temp_max,
store_temp_max, 0, 1),
@@ -355,6 +373,10 @@ static struct sensor_device_attribute_2 fxxxx_in_temp_attr[] = {
store_temp_beep, 0, 6),
SENSOR_ATTR_2(temp2_type, S_IRUGO, show_temp_type, NULL, 0, 2),
SENSOR_ATTR_2(temp2_fault, S_IRUGO, show_temp_fault, NULL, 0, 2),
+};
+
+/* Temp and in attr common to the f71862fg, f71882fg and f71889fg */
+static struct sensor_device_attribute_2 f71862_temp_attr[] = {
SENSOR_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, 0, 3),
SENSOR_ATTR_2(temp3_max, S_IRUGO|S_IWUSR, show_temp_max,
store_temp_max, 0, 3),
@@ -989,6 +1011,11 @@ static struct f71882fg_data *f71882fg_update_device(struct device *dev)
data->temp_type[1] = 6;
break;
}
+ } else if (data->type == f71808fg) {
+ reg = f71882fg_read8(data, F71882FG_REG_TEMP_TYPE);
+ data->temp_type[1] = (reg & 0x02) ? 2 : 4;
+ data->temp_type[2] = (reg & 0x04) ? 2 : 4;
+
} else {
reg2 = f71882fg_read8(data, F71882FG_REG_PECI);
if ((reg2 & 0x03) == 0x01)
@@ -1871,7 +1898,8 @@ static ssize_t store_pwm_auto_point_temp(struct device *dev,
val /= 1000;
- if (data->type == f71889fg)
+ if (data->type == f71889fg
+ || data->type == f71808fg)
val = SENSORS_LIMIT(val, -128, 127);
else
val = SENSORS_LIMIT(val, 0, 127);
@@ -1974,8 +2002,28 @@ static int __devinit f71882fg_probe(struct platform_device *pdev)
/* fall through! */
case f71862fg:
err = f71882fg_create_sysfs_files(pdev,
- fxxxx_in_temp_attr,
- ARRAY_SIZE(fxxxx_in_temp_attr));
+ f71862_temp_attr,
+ ARRAY_SIZE(f71862_temp_attr));
+ if (err)
+ goto exit_unregister_sysfs;
+ err = f71882fg_create_sysfs_files(pdev,
+ fxxxx_in_attr,
+ ARRAY_SIZE(fxxxx_in_attr));
+ if (err)
+ goto exit_unregister_sysfs;
+ err = f71882fg_create_sysfs_files(pdev,
+ fxxxx_temp_attr,
+ ARRAY_SIZE(fxxxx_temp_attr));
+ break;
+ case f71808fg:
+ err = f71882fg_create_sysfs_files(pdev,
+ f71808_in_attr,
+ ARRAY_SIZE(f71808_in_attr));
+ if (err)
+ goto exit_unregister_sysfs;
+ err = f71882fg_create_sysfs_files(pdev,
+ fxxxx_temp_attr,
+ ARRAY_SIZE(fxxxx_temp_attr));
break;
case f8000:
err = f71882fg_create_sysfs_files(pdev,
@@ -2002,6 +2050,7 @@ static int __devinit f71882fg_probe(struct platform_device *pdev)
case f71862fg:
err = (data->pwm_enable & 0x15) != 0x15;
break;
+ case f71808fg:
case f71882fg:
case f71889fg:
err = 0;
@@ -2047,6 +2096,7 @@ static int __devinit f71882fg_probe(struct platform_device *pdev)
f8000_auto_pwm_attr,
ARRAY_SIZE(f8000_auto_pwm_attr));
break;
+ case f71808fg:
case f71889fg:
for (i = 0; i < nr_fans; i++) {
data->pwm_auto_point_mapping[i] =
@@ -2126,8 +2176,22 @@ static int f71882fg_remove(struct platform_device *pdev)
/* fall through! */
case f71862fg:
f71882fg_remove_sysfs_files(pdev,
- fxxxx_in_temp_attr,
- ARRAY_SIZE(fxxxx_in_temp_attr));
+ f71862_temp_attr,
+ ARRAY_SIZE(f71862_temp_attr));
+ f71882fg_remove_sysfs_files(pdev,
+ fxxxx_in_attr,
+ ARRAY_SIZE(fxxxx_in_attr));
+ f71882fg_remove_sysfs_files(pdev,
+ fxxxx_temp_attr,
+ ARRAY_SIZE(fxxxx_temp_attr));
+ break;
+ case f71808fg:
+ f71882fg_remove_sysfs_files(pdev,
+ f71808_in_attr,
+ ARRAY_SIZE(f71808_in_attr));
+ f71882fg_remove_sysfs_files(pdev,
+ fxxxx_temp_attr,
+ ARRAY_SIZE(fxxxx_temp_attr));
break;
case f8000:
f71882fg_remove_sysfs_files(pdev,
@@ -2195,6 +2259,9 @@ static int __init f71882fg_find(int sioaddr, unsigned short *address,
devid = force_id ? force_id : superio_inw(sioaddr, SIO_REG_DEVID);
switch (devid) {
+ case SIO_F71808_ID:
+ sio_data->type = f71808fg;
+ break;
case SIO_F71858_ID:
sio_data->type = f71858fg;
break;
--
1.6.4.4
--
Met vriendelijke groet,
With kind regards,
Giel van Schijndel
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