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hwmon: (fschmd) Fix checkpatch issues

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Fixed:
ERROR: that open brace { should be on the previous line
ERROR: trailing statements should be on next line
WARNING: line over 80 characters
WARNING: simple_strtol is obsolete, use kstrtol instead
WARNING: simple_strtoul is obsolete, use kstrtoul instead

Modify multi-line comments to follow Documentation/CodingStyle.

Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Guenter Roeck 2012-01-14 13:30:47 -08:00 committed by Guenter Roeck
parent f24d548bf2
commit 525ad37319
1 changed files with 142 additions and 76 deletions
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218
drivers/hwmon/fschmd.c
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@ -1,4 +1,5 @@
/* fschmd.c /*
* fschmd.c
* *
* Copyright (C) 2007 - 2009 Hans de Goede <hdegoede@redhat.com> * Copyright (C) 2007 - 2009 Hans de Goede <hdegoede@redhat.com>
* *
@ -76,12 +77,12 @@ enum chips { fscpos, fscher, fscscy, fschrc, fschmd, fschds, fscsyl };
#define FSCHMD_CONTROL_ALERT_LED 0x01 #define FSCHMD_CONTROL_ALERT_LED 0x01
/* watchdog */ /* watchdog */
static const u8 FSCHMD_REG_WDOG_CONTROL[7] = static const u8 FSCHMD_REG_WDOG_CONTROL[7] = {
{ 0x21, 0x21, 0x21, 0x21, 0x21, 0x28, 0x28 }; 0x21, 0x21, 0x21, 0x21, 0x21, 0x28, 0x28 };
static const u8 FSCHMD_REG_WDOG_STATE[7] = static const u8 FSCHMD_REG_WDOG_STATE[7] = {
{ 0x23, 0x23, 0x23, 0x23, 0x23, 0x29, 0x29 }; 0x23, 0x23, 0x23, 0x23, 0x23, 0x29, 0x29 };
static const u8 FSCHMD_REG_WDOG_PRESET[7] = static const u8 FSCHMD_REG_WDOG_PRESET[7] = {
{ 0x28, 0x28, 0x28, 0x28, 0x28, 0x2a, 0x2a }; 0x28, 0x28, 0x28, 0x28, 0x28, 0x2a, 0x2a };
#define FSCHMD_WDOG_CONTROL_TRIGGER 0x10 #define FSCHMD_WDOG_CONTROL_TRIGGER 0x10
#define FSCHMD_WDOG_CONTROL_STARTED 0x10 /* the same as trigger */ #define FSCHMD_WDOG_CONTROL_STARTED 0x10 /* the same as trigger */
@ -103,10 +104,12 @@ static const u8 FSCHMD_REG_VOLT[7][6] = {
static const int FSCHMD_NO_VOLT_SENSORS[7] = { 3, 3, 3, 3, 3, 3, 6 }; static const int FSCHMD_NO_VOLT_SENSORS[7] = { 3, 3, 3, 3, 3, 3, 6 };
/* minimum pwm at which the fan is driven (pwm can by increased depending on /*
the temp. Notice that for the scy some fans share there minimum speed. * minimum pwm at which the fan is driven (pwm can by increased depending on
Also notice that with the scy the sensor order is different than with the * the temp. Notice that for the scy some fans share there minimum speed.
other chips, this order was in the 2.4 driver and kept for consistency. */ * Also notice that with the scy the sensor order is different than with the
* other chips, this order was in the 2.4 driver and kept for consistency.
*/
static const u8 FSCHMD_REG_FAN_MIN[7][7] = { static const u8 FSCHMD_REG_FAN_MIN[7][7] = {
{ 0x55, 0x65 }, /* pos */ { 0x55, 0x65 }, /* pos */
{ 0x55, 0x65, 0xb5 }, /* her */ { 0x55, 0x65, 0xb5 }, /* her */
@ -182,11 +185,13 @@ static const u8 FSCHMD_REG_TEMP_STATE[7][11] = {
0xb9, 0xc9, 0xd9, 0xe9, 0xf9 }, 0xb9, 0xc9, 0xd9, 0xe9, 0xf9 },
}; };
/* temperature high limit registers, FSC does not document these. Proven to be /*
there with field testing on the fscher and fschrc, already supported / used * temperature high limit registers, FSC does not document these. Proven to be
in the fscscy 2.4 driver. FSC has confirmed that the fschmd has registers * there with field testing on the fscher and fschrc, already supported / used
at these addresses, but doesn't want to confirm they are the same as with * in the fscscy 2.4 driver. FSC has confirmed that the fschmd has registers
the fscher?? */ * at these addresses, but doesn't want to confirm they are the same as with
* the fscher??
*/
static const u8 FSCHMD_REG_TEMP_LIMIT[7][11] = { static const u8 FSCHMD_REG_TEMP_LIMIT[7][11] = {
{ 0, 0, 0 }, /* pos */ { 0, 0, 0 }, /* pos */
{ 0x76, 0x86, 0x96 }, /* her */ { 0x76, 0x86, 0x96 }, /* her */
@ -198,13 +203,15 @@ static const u8 FSCHMD_REG_TEMP_LIMIT[7][11] = {
0xba, 0xca, 0xda, 0xea, 0xfa }, 0xba, 0xca, 0xda, 0xea, 0xfa },
}; };
/* These were found through experimenting with an fscher, currently they are /*
not used, but we keep them around for future reference. * These were found through experimenting with an fscher, currently they are
On the fscsyl AUTOP1 lives at 0x#c (so 0x5c for fan1, 0x6c for fan2, etc), * not used, but we keep them around for future reference.
AUTOP2 lives at 0x#e, and 0x#1 is a bitmask defining which temps influence * On the fscsyl AUTOP1 lives at 0x#c (so 0x5c for fan1, 0x6c for fan2, etc),
the fan speed. * AUTOP2 lives at 0x#e, and 0x#1 is a bitmask defining which temps influence
static const u8 FSCHER_REG_TEMP_AUTOP1[] = { 0x73, 0x83, 0x93 }; * the fan speed.
static const u8 FSCHER_REG_TEMP_AUTOP2[] = { 0x75, 0x85, 0x95 }; */ * static const u8 FSCHER_REG_TEMP_AUTOP1[] = { 0x73, 0x83, 0x93 };
* static const u8 FSCHER_REG_TEMP_AUTOP2[] = { 0x75, 0x85, 0x95 };
*/
static const int FSCHMD_NO_TEMP_SENSORS[7] = { 3, 3, 4, 3, 5, 5, 11 }; static const int FSCHMD_NO_TEMP_SENSORS[7] = { 3, 3, 4, 3, 5, 5, 11 };
@ -290,24 +297,30 @@ struct fschmd_data {
u8 fan_ripple[7]; /* divider for rps */ u8 fan_ripple[7]; /* divider for rps */
}; };
/* Global variables to hold information read from special DMI tables, which are /*
available on FSC machines with an fscher or later chip. There is no need to * Global variables to hold information read from special DMI tables, which are
protect these with a lock as they are only modified from our attach function * available on FSC machines with an fscher or later chip. There is no need to
which always gets called with the i2c-core lock held and never accessed * protect these with a lock as they are only modified from our attach function
before the attach function is done with them. */ * which always gets called with the i2c-core lock held and never accessed
* before the attach function is done with them.
*/
static int dmi_mult[6] = { 490, 200, 100, 100, 200, 100 }; static int dmi_mult[6] = { 490, 200, 100, 100, 200, 100 };
static int dmi_offset[6] = { 0, 0, 0, 0, 0, 0 }; static int dmi_offset[6] = { 0, 0, 0, 0, 0, 0 };
static int dmi_vref = -1; static int dmi_vref = -1;
/* Somewhat ugly :( global data pointer list with all fschmd devices, so that /*
we can find our device data as when using misc_register there is no other * Somewhat ugly :( global data pointer list with all fschmd devices, so that
method to get to ones device data from the open fop. */ * we can find our device data as when using misc_register there is no other
* method to get to ones device data from the open fop.
*/
static LIST_HEAD(watchdog_data_list); static LIST_HEAD(watchdog_data_list);
/* Note this lock not only protect list access, but also data.kref access */ /* Note this lock not only protect list access, but also data.kref access */
static DEFINE_MUTEX(watchdog_data_mutex); static DEFINE_MUTEX(watchdog_data_mutex);
/* Release our data struct when we're detached from the i2c client *and* all /*
references to our watchdog device are released */ * Release our data struct when we're detached from the i2c client *and* all
* references to our watchdog device are released
*/
static void fschmd_release_resources(struct kref *ref) static void fschmd_release_resources(struct kref *ref)
{ {
struct fschmd_data *data = container_of(ref, struct fschmd_data, kref); struct fschmd_data *data = container_of(ref, struct fschmd_data, kref);
@ -359,9 +372,14 @@ static ssize_t store_temp_max(struct device *dev, struct device_attribute
{ {
int index = to_sensor_dev_attr(devattr)->index; int index = to_sensor_dev_attr(devattr)->index;
struct fschmd_data *data = dev_get_drvdata(dev); struct fschmd_data *data = dev_get_drvdata(dev);
long v = simple_strtol(buf, NULL, 10) / 1000; long v;
int err;
v = SENSORS_LIMIT(v, -128, 127) + 128; err = kstrtol(buf, 10, &v);
if (err)
return err;
v = SENSORS_LIMIT(v / 1000, -128, 127) + 128;
mutex_lock(&data->update_lock); mutex_lock(&data->update_lock);
i2c_smbus_write_byte_data(to_i2c_client(dev), i2c_smbus_write_byte_data(to_i2c_client(dev),
@ -427,12 +445,23 @@ static ssize_t store_fan_div(struct device *dev, struct device_attribute
int index = to_sensor_dev_attr(devattr)->index; int index = to_sensor_dev_attr(devattr)->index;
struct fschmd_data *data = dev_get_drvdata(dev); struct fschmd_data *data = dev_get_drvdata(dev);
/* supported values: 2, 4, 8 */ /* supported values: 2, 4, 8 */
unsigned long v = simple_strtoul(buf, NULL, 10); unsigned long v;
int err;
err = kstrtoul(buf, 10, &v);
if (err)
return err;
switch (v) { switch (v) {
case 2: v = 1; break; case 2:
case 4: v = 2; break; v = 1;
case 8: v = 3; break; break;
case 4:
v = 2;
break;
case 8:
v = 3;
break;
default: default:
dev_err(dev, "fan_div value %lu not supported. " dev_err(dev, "fan_div value %lu not supported. "
"Choose one of 2, 4 or 8!\n", v); "Choose one of 2, 4 or 8!\n", v);
@ -502,7 +531,12 @@ static ssize_t store_pwm_auto_point1_pwm(struct device *dev,
{ {
int index = to_sensor_dev_attr(devattr)->index; int index = to_sensor_dev_attr(devattr)->index;
struct fschmd_data *data = dev_get_drvdata(dev); struct fschmd_data *data = dev_get_drvdata(dev);
unsigned long v = simple_strtoul(buf, NULL, 10); unsigned long v;
int err;
err = kstrtoul(buf, 10, &v);
if (err)
return err;
/* reg: 0 = allow turning off (except on the syl), 1-255 = 50-100% */ /* reg: 0 = allow turning off (except on the syl), 1-255 = 50-100% */
if (v || data->kind == fscsyl) { if (v || data->kind == fscsyl) {
@ -522,8 +556,10 @@ static ssize_t store_pwm_auto_point1_pwm(struct device *dev,
} }
/* The FSC hwmon family has the ability to force an attached alert led to flash /*
from software, we export this as an alert_led sysfs attr */ * The FSC hwmon family has the ability to force an attached alert led to flash
* from software, we export this as an alert_led sysfs attr
*/
static ssize_t show_alert_led(struct device *dev, static ssize_t show_alert_led(struct device *dev,
struct device_attribute *devattr, char *buf) struct device_attribute *devattr, char *buf)
{ {
@ -540,7 +576,12 @@ static ssize_t store_alert_led(struct device *dev,
{ {
u8 reg; u8 reg;
struct fschmd_data *data = dev_get_drvdata(dev); struct fschmd_data *data = dev_get_drvdata(dev);
unsigned long v = simple_strtoul(buf, NULL, 10); unsigned long v;
int err;
err = kstrtoul(buf, 10, &v);
if (err)
return err;
mutex_lock(&data->update_lock); mutex_lock(&data->update_lock);
@ -754,8 +795,10 @@ static int watchdog_stop(struct fschmd_data *data)
} }
data->watchdog_control &= ~FSCHMD_WDOG_CONTROL_STARTED; data->watchdog_control &= ~FSCHMD_WDOG_CONTROL_STARTED;
/* Don't store the stop flag in our watchdog control register copy, as /*
its a write only bit (read always returns 0) */ * Don't store the stop flag in our watchdog control register copy, as
* its a write only bit (read always returns 0)
*/
i2c_smbus_write_byte_data(data->client, i2c_smbus_write_byte_data(data->client,
FSCHMD_REG_WDOG_CONTROL[data->kind], FSCHMD_REG_WDOG_CONTROL[data->kind],
data->watchdog_control | FSCHMD_WDOG_CONTROL_STOP); data->watchdog_control | FSCHMD_WDOG_CONTROL_STOP);
@ -769,10 +812,12 @@ static int watchdog_open(struct inode *inode, struct file *filp)
struct fschmd_data *pos, *data = NULL; struct fschmd_data *pos, *data = NULL;
int watchdog_is_open; int watchdog_is_open;
/* We get called from drivers/char/misc.c with misc_mtx hold, and we /*
call misc_register() from fschmd_probe() with watchdog_data_mutex * We get called from drivers/char/misc.c with misc_mtx hold, and we
hold, as misc_register() takes the misc_mtx lock, this is a possible * call misc_register() from fschmd_probe() with watchdog_data_mutex
deadlock, so we use mutex_trylock here. */ * hold, as misc_register() takes the misc_mtx lock, this is a possible
* deadlock, so we use mutex_trylock here.
*/
if (!mutex_trylock(&watchdog_data_mutex)) if (!mutex_trylock(&watchdog_data_mutex))
return -ERESTARTSYS; return -ERESTARTSYS;
list_for_each_entry(pos, &watchdog_data_list, list) { list_for_each_entry(pos, &watchdog_data_list, list) {
@ -847,7 +892,8 @@ static ssize_t watchdog_write(struct file *filp, const char __user *buf,
return count; return count;
} }
static long watchdog_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) static long watchdog_ioctl(struct file *filp, unsigned int cmd,
unsigned long arg)
{ {
struct watchdog_info ident = { struct watchdog_info ident = {
.options = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT | .options = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT |
@ -930,30 +976,38 @@ static const struct file_operations watchdog_fops = {
* Detect, register, unregister and update device functions * Detect, register, unregister and update device functions
*/ */
/* DMI decode routine to read voltage scaling factors from special DMI tables, /*
which are available on FSC machines with an fscher or later chip. */ * DMI decode routine to read voltage scaling factors from special DMI tables,
* which are available on FSC machines with an fscher or later chip.
*/
static void fschmd_dmi_decode(const struct dmi_header *header, void *dummy) static void fschmd_dmi_decode(const struct dmi_header *header, void *dummy)
{ {
int i, mult[3] = { 0 }, offset[3] = { 0 }, vref = 0, found = 0; int i, mult[3] = { 0 }, offset[3] = { 0 }, vref = 0, found = 0;
/* dmi code ugliness, we get passed the address of the contents of /*
a complete DMI record, but in the form of a dmi_header pointer, in * dmi code ugliness, we get passed the address of the contents of
reality this address holds header->length bytes of which the header * a complete DMI record, but in the form of a dmi_header pointer, in
are the first 4 bytes */ * reality this address holds header->length bytes of which the header
* are the first 4 bytes
*/
u8 *dmi_data = (u8 *)header; u8 *dmi_data = (u8 *)header;
/* We are looking for OEM-specific type 185 */ /* We are looking for OEM-specific type 185 */
if (header->type != 185) if (header->type != 185)
return; return;
/* we are looking for what Siemens calls "subtype" 19, the subtype /*
is stored in byte 5 of the dmi block */ * we are looking for what Siemens calls "subtype" 19, the subtype
* is stored in byte 5 of the dmi block
*/
if (header->length < 5 || dmi_data[4] != 19) if (header->length < 5 || dmi_data[4] != 19)
return; return;
/* After the subtype comes 1 unknown byte and then blocks of 5 bytes, /*
consisting of what Siemens calls an "Entity" number, followed by * After the subtype comes 1 unknown byte and then blocks of 5 bytes,
2 16-bit words in LSB first order */ * consisting of what Siemens calls an "Entity" number, followed by
* 2 16-bit words in LSB first order
*/
for (i = 6; (i + 4) < header->length; i += 5) { for (i = 6; (i + 4) < header->length; i += 5) {
/* entity 1 - 3: voltage multiplier and offset */ /* entity 1 - 3: voltage multiplier and offset */
if (dmi_data[i] >= 1 && dmi_data[i] <= 3) { if (dmi_data[i] >= 1 && dmi_data[i] <= 3) {
@ -988,9 +1042,11 @@ static void fschmd_dmi_decode(const struct dmi_header *header, void *dummy)
dmi_mult[i] = mult[i] * 10; dmi_mult[i] = mult[i] * 10;
dmi_offset[i] = offset[i] * 10; dmi_offset[i] = offset[i] * 10;
} }
/* According to the docs there should be separate dmi entries /*
for the mult's and offsets of in3-5 of the syl, but on * According to the docs there should be separate dmi entries
my test machine these are not present */ * for the mult's and offsets of in3-5 of the syl, but on
* my test machine these are not present
*/
dmi_mult[3] = dmi_mult[2]; dmi_mult[3] = dmi_mult[2];
dmi_mult[4] = dmi_mult[1]; dmi_mult[4] = dmi_mult[1];
dmi_mult[5] = dmi_mult[2]; dmi_mult[5] = dmi_mult[2];
@ -1058,15 +1114,19 @@ static int fschmd_probe(struct i2c_client *client,
mutex_init(&data->watchdog_lock); mutex_init(&data->watchdog_lock);
INIT_LIST_HEAD(&data->list); INIT_LIST_HEAD(&data->list);
kref_init(&data->kref); kref_init(&data->kref);
/* Store client pointer in our data struct for watchdog usage /*
(where the client is found through a data ptr instead of the * Store client pointer in our data struct for watchdog usage
otherway around) */ * (where the client is found through a data ptr instead of the
* otherway around)
*/
data->client = client; data->client = client;
data->kind = kind; data->kind = kind;
if (kind == fscpos) { if (kind == fscpos) {
/* The Poseidon has hardwired temp limits, fill these /*
in for the alarm resetting code */ * The Poseidon has hardwired temp limits, fill these
* in for the alarm resetting code
*/
data->temp_max[0] = 70 + 128; data->temp_max[0] = 70 + 128;
data->temp_max[1] = 50 + 128; data->temp_max[1] = 50 + 128;
data->temp_max[2] = 50 + 128; data->temp_max[2] = 50 + 128;
@ -1157,9 +1217,11 @@ static int fschmd_probe(struct i2c_client *client,
goto exit_detach; goto exit_detach;
} }
/* We take the data_mutex lock early so that watchdog_open() cannot /*
run when misc_register() has completed, but we've not yet added * We take the data_mutex lock early so that watchdog_open() cannot
our data to the watchdog_data_list (and set the default timeout) */ * run when misc_register() has completed, but we've not yet added
* our data to the watchdog_data_list (and set the default timeout)
*/
mutex_lock(&watchdog_data_mutex); mutex_lock(&watchdog_data_mutex);
for (i = 0; i < ARRAY_SIZE(watchdog_minors); i++) { for (i = 0; i < ARRAY_SIZE(watchdog_minors); i++) {
/* Register our watchdog part */ /* Register our watchdog part */
@ -1225,8 +1287,10 @@ static int fschmd_remove(struct i2c_client *client)
mutex_unlock(&data->watchdog_lock); mutex_unlock(&data->watchdog_lock);
} }
/* Check if registered in case we're called from fschmd_detect /*
to cleanup after an error */ * Check if registered in case we're called from fschmd_detect
* to cleanup after an error
*/
if (data->hwmon_dev) if (data->hwmon_dev)
hwmon_device_unregister(data->hwmon_dev); hwmon_device_unregister(data->hwmon_dev);
@ -1269,8 +1333,10 @@ static struct fschmd_data *fschmd_update_device(struct device *dev)
client, client,
FSCHMD_REG_TEMP_LIMIT[data->kind][i]); FSCHMD_REG_TEMP_LIMIT[data->kind][i]);
/* reset alarm if the alarm condition is gone, /*
the chip doesn't do this itself */ * reset alarm if the alarm condition is gone,
* the chip doesn't do this itself
*/
if ((data->temp_status[i] & FSCHMD_TEMP_ALARM_MASK) == if ((data->temp_status[i] & FSCHMD_TEMP_ALARM_MASK) ==
FSCHMD_TEMP_ALARM_MASK && FSCHMD_TEMP_ALARM_MASK &&
data->temp_act[i] < data->temp_max[i]) data->temp_act[i] < data->temp_max[i])