hwmon: (asb100) Various cleanups
* Drop history, it's incomplete and doesn't belong there * Drop unused version number * Drop trailing spaces * Coding style fixes * Fold long lines * Rename new_client to client * Drop redundant initializations to 0 Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Hans de Goede <j.w.r.degoede@hhs.nl> Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>hifive-unleashed-5.1
Jean Delvare
Mark M. Hoffman
parent
8f74efe81d
commit
af22193151
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@ -47,12 +47,6 @@
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#include <linux/mutex.h>
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#include "lm75.h"
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/*
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HISTORY:
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2003-12-29 1.0.0 Ported from lm_sensors project for kernel 2.6
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*/
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#define ASB100_VERSION "1.0.0"
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/* I2C addresses to scan */
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static unsigned short normal_i2c[] = { 0x2d, I2C_CLIENT_END };
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@ -344,14 +338,14 @@ static ssize_t set_fan_div(struct device *dev, const char *buf,
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unsigned long min;
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unsigned long val = simple_strtoul(buf, NULL, 10);
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int reg;
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mutex_lock(&data->update_lock);
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min = FAN_FROM_REG(data->fan_min[nr],
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DIV_FROM_REG(data->fan_div[nr]));
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data->fan_div[nr] = DIV_TO_REG(val);
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switch(nr) {
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switch (nr) {
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case 0: /* fan 1 */
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reg = asb100_read_value(client, ASB100_REG_VID_FANDIV);
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reg = (reg & 0xcf) | (data->fan_div[0] << 4);
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@ -429,7 +423,7 @@ static int sprintf_temp_from_reg(u16 reg, char *buf, int nr)
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}
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return ret;
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}
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#define show_temp_reg(reg) \
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static ssize_t show_##reg(struct device *dev, char *buf, int nr) \
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{ \
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@ -502,7 +496,8 @@ sysfs_temp(3);
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sysfs_temp(4);
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/* VID */
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static ssize_t show_vid(struct device *dev, struct device_attribute *attr, char *buf)
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static ssize_t show_vid(struct device *dev, struct device_attribute *attr,
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char *buf)
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{
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struct asb100_data *data = asb100_update_device(dev);
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return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm));
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@ -511,13 +506,15 @@ static ssize_t show_vid(struct device *dev, struct device_attribute *attr, char
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static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
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/* VRM */
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static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, char *buf)
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static ssize_t show_vrm(struct device *dev, struct device_attribute *attr,
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char *buf)
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{
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struct asb100_data *data = dev_get_drvdata(dev);
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return sprintf(buf, "%d\n", data->vrm);
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}
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static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
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static ssize_t set_vrm(struct device *dev, struct device_attribute *attr,
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const char *buf, size_t count)
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{
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struct asb100_data *data = dev_get_drvdata(dev);
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data->vrm = simple_strtoul(buf, NULL, 10);
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@ -527,7 +524,8 @@ static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, const
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/* Alarms */
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static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);
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static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, char *buf)
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static ssize_t show_alarms(struct device *dev, struct device_attribute *attr,
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char *buf)
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{
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struct asb100_data *data = asb100_update_device(dev);
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return sprintf(buf, "%u\n", data->alarms);
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@ -536,13 +534,15 @@ static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, ch
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static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
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/* 1 PWM */
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static ssize_t show_pwm1(struct device *dev, struct device_attribute *attr, char *buf)
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static ssize_t show_pwm1(struct device *dev, struct device_attribute *attr,
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char *buf)
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{
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struct asb100_data *data = asb100_update_device(dev);
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return sprintf(buf, "%d\n", ASB100_PWM_FROM_REG(data->pwm & 0x0f));
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}
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static ssize_t set_pwm1(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
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static ssize_t set_pwm1(struct device *dev, struct device_attribute *attr,
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const char *buf, size_t count)
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{
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struct i2c_client *client = to_i2c_client(dev);
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struct asb100_data *data = i2c_get_clientdata(client);
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@ -556,14 +556,15 @@ static ssize_t set_pwm1(struct device *dev, struct device_attribute *attr, const
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return count;
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}
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static ssize_t show_pwm_enable1(struct device *dev, struct device_attribute *attr, char *buf)
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static ssize_t show_pwm_enable1(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct asb100_data *data = asb100_update_device(dev);
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return sprintf(buf, "%d\n", (data->pwm & 0x80) ? 1 : 0);
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}
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static ssize_t set_pwm_enable1(struct device *dev, struct device_attribute *attr, const char *buf,
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size_t count)
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static ssize_t set_pwm_enable1(struct device *dev,
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struct device_attribute *attr, const char *buf, size_t count)
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{
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struct i2c_client *client = to_i2c_client(dev);
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struct asb100_data *data = i2c_get_clientdata(client);
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@ -653,10 +654,10 @@ static int asb100_attach_adapter(struct i2c_adapter *adapter)
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}
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static int asb100_detect_subclients(struct i2c_adapter *adapter, int address,
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int kind, struct i2c_client *new_client)
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int kind, struct i2c_client *client)
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{
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int i, id, err;
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struct asb100_data *data = i2c_get_clientdata(new_client);
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struct asb100_data *data = i2c_get_clientdata(client);
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data->lm75[0] = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
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if (!(data->lm75[0])) {
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@ -676,26 +677,26 @@ static int asb100_detect_subclients(struct i2c_adapter *adapter, int address,
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for (i = 2; i <= 3; i++) {
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if (force_subclients[i] < 0x48 ||
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force_subclients[i] > 0x4f) {
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dev_err(&new_client->dev, "invalid subclient "
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dev_err(&client->dev, "invalid subclient "
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"address %d; must be 0x48-0x4f\n",
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force_subclients[i]);
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err = -ENODEV;
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goto ERROR_SC_2;
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}
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}
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asb100_write_value(new_client, ASB100_REG_I2C_SUBADDR,
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asb100_write_value(client, ASB100_REG_I2C_SUBADDR,
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(force_subclients[2] & 0x07) |
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((force_subclients[3] & 0x07) <<4));
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((force_subclients[3] & 0x07) << 4));
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data->lm75[0]->addr = force_subclients[2];
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data->lm75[1]->addr = force_subclients[3];
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} else {
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int val = asb100_read_value(new_client, ASB100_REG_I2C_SUBADDR);
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int val = asb100_read_value(client, ASB100_REG_I2C_SUBADDR);
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data->lm75[0]->addr = 0x48 + (val & 0x07);
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data->lm75[1]->addr = 0x48 + ((val >> 4) & 0x07);
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}
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if(data->lm75[0]->addr == data->lm75[1]->addr) {
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dev_err(&new_client->dev, "duplicate addresses 0x%x "
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if (data->lm75[0]->addr == data->lm75[1]->addr) {
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dev_err(&client->dev, "duplicate addresses 0x%x "
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"for subclients\n", data->lm75[0]->addr);
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err = -ENODEV;
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goto ERROR_SC_2;
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@ -705,18 +706,17 @@ static int asb100_detect_subclients(struct i2c_adapter *adapter, int address,
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i2c_set_clientdata(data->lm75[i], NULL);
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data->lm75[i]->adapter = adapter;
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data->lm75[i]->driver = &asb100_driver;
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data->lm75[i]->flags = 0;
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strlcpy(data->lm75[i]->name, "asb100 subclient", I2C_NAME_SIZE);
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}
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if ((err = i2c_attach_client(data->lm75[0]))) {
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dev_err(&new_client->dev, "subclient %d registration "
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dev_err(&client->dev, "subclient %d registration "
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"at address 0x%x failed.\n", i, data->lm75[0]->addr);
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goto ERROR_SC_2;
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}
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if ((err = i2c_attach_client(data->lm75[1]))) {
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dev_err(&new_client->dev, "subclient %d registration "
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dev_err(&client->dev, "subclient %d registration "
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"at address 0x%x failed.\n", i, data->lm75[1]->addr);
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goto ERROR_SC_3;
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}
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@ -737,7 +737,7 @@ ERROR_SC_0:
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static int asb100_detect(struct i2c_adapter *adapter, int address, int kind)
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{
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int err;
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struct i2c_client *new_client;
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struct i2c_client *client;
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struct asb100_data *data;
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if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
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@ -757,13 +757,12 @@ static int asb100_detect(struct i2c_adapter *adapter, int address, int kind)
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goto ERROR0;
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}
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new_client = &data->client;
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client = &data->client;
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mutex_init(&data->lock);
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i2c_set_clientdata(new_client, data);
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new_client->addr = address;
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new_client->adapter = adapter;
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new_client->driver = &asb100_driver;
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new_client->flags = 0;
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i2c_set_clientdata(client, data);
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client->addr = address;
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client->adapter = adapter;
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client->driver = &asb100_driver;
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/* Now, we do the remaining detection. */
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@ -773,15 +772,15 @@ static int asb100_detect(struct i2c_adapter *adapter, int address, int kind)
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bank. */
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if (kind < 0) {
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int val1 = asb100_read_value(new_client, ASB100_REG_BANK);
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int val2 = asb100_read_value(new_client, ASB100_REG_CHIPMAN);
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int val1 = asb100_read_value(client, ASB100_REG_BANK);
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int val2 = asb100_read_value(client, ASB100_REG_CHIPMAN);
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/* If we're in bank 0 */
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if ( (!(val1 & 0x07)) &&
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if ((!(val1 & 0x07)) &&
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/* Check for ASB100 ID (low byte) */
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( ((!(val1 & 0x80)) && (val2 != 0x94)) ||
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(((!(val1 & 0x80)) && (val2 != 0x94)) ||
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/* Check for ASB100 ID (high byte ) */
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((val1 & 0x80) && (val2 != 0x06)) ) ) {
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((val1 & 0x80) && (val2 != 0x06)))) {
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pr_debug("asb100.o: detect failed, "
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"bad chip id 0x%02x!\n", val2);
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err = -ENODEV;
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@ -792,19 +791,19 @@ static int asb100_detect(struct i2c_adapter *adapter, int address, int kind)
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/* We have either had a force parameter, or we have already detected
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Winbond. Put it now into bank 0 and Vendor ID High Byte */
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asb100_write_value(new_client, ASB100_REG_BANK,
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(asb100_read_value(new_client, ASB100_REG_BANK) & 0x78) | 0x80);
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asb100_write_value(client, ASB100_REG_BANK,
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(asb100_read_value(client, ASB100_REG_BANK) & 0x78) | 0x80);
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/* Determine the chip type. */
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if (kind <= 0) {
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int val1 = asb100_read_value(new_client, ASB100_REG_WCHIPID);
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int val2 = asb100_read_value(new_client, ASB100_REG_CHIPMAN);
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int val1 = asb100_read_value(client, ASB100_REG_WCHIPID);
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int val2 = asb100_read_value(client, ASB100_REG_CHIPMAN);
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if ((val1 == 0x31) && (val2 == 0x06))
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kind = asb100;
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else {
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if (kind == 0)
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dev_warn(&new_client->dev, "ignoring "
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dev_warn(&client->dev, "ignoring "
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"'force' parameter for unknown chip "
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"at adapter %d, address 0x%02x.\n",
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i2c_adapter_id(adapter), address);
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@ -814,34 +813,32 @@ static int asb100_detect(struct i2c_adapter *adapter, int address, int kind)
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}
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/* Fill in remaining client fields and put it into the global list */
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strlcpy(new_client->name, "asb100", I2C_NAME_SIZE);
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strlcpy(client->name, "asb100", I2C_NAME_SIZE);
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data->type = kind;
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data->valid = 0;
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mutex_init(&data->update_lock);
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/* Tell the I2C layer a new client has arrived */
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if ((err = i2c_attach_client(new_client)))
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if ((err = i2c_attach_client(client)))
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goto ERROR1;
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/* Attach secondary lm75 clients */
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if ((err = asb100_detect_subclients(adapter, address, kind,
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new_client)))
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client)))
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goto ERROR2;
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/* Initialize the chip */
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asb100_init_client(new_client);
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asb100_init_client(client);
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/* A few vars need to be filled upon startup */
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data->fan_min[0] = asb100_read_value(new_client, ASB100_REG_FAN_MIN(0));
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data->fan_min[1] = asb100_read_value(new_client, ASB100_REG_FAN_MIN(1));
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data->fan_min[2] = asb100_read_value(new_client, ASB100_REG_FAN_MIN(2));
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data->fan_min[0] = asb100_read_value(client, ASB100_REG_FAN_MIN(0));
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data->fan_min[1] = asb100_read_value(client, ASB100_REG_FAN_MIN(1));
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data->fan_min[2] = asb100_read_value(client, ASB100_REG_FAN_MIN(2));
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/* Register sysfs hooks */
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if ((err = sysfs_create_group(&new_client->dev.kobj, &asb100_group)))
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if ((err = sysfs_create_group(&client->dev.kobj, &asb100_group)))
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goto ERROR3;
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data->hwmon_dev = hwmon_device_register(&new_client->dev);
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data->hwmon_dev = hwmon_device_register(&client->dev);
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if (IS_ERR(data->hwmon_dev)) {
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err = PTR_ERR(data->hwmon_dev);
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goto ERROR4;
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@ -850,14 +847,14 @@ static int asb100_detect(struct i2c_adapter *adapter, int address, int kind)
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return 0;
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ERROR4:
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sysfs_remove_group(&new_client->dev.kobj, &asb100_group);
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sysfs_remove_group(&client->dev.kobj, &asb100_group);
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ERROR3:
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i2c_detach_client(data->lm75[1]);
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i2c_detach_client(data->lm75[0]);
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kfree(data->lm75[1]);
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kfree(data->lm75[0]);
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ERROR2:
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i2c_detach_client(new_client);
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i2c_detach_client(client);
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ERROR1:
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kfree(data);
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ERROR0:
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@ -913,17 +910,17 @@ static int asb100_read_value(struct i2c_client *client, u16 reg)
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/* convert from ISA to LM75 I2C addresses */
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switch (reg & 0xff) {
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case 0x50: /* TEMP */
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res = swab16(i2c_smbus_read_word_data (cl, 0));
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res = swab16(i2c_smbus_read_word_data(cl, 0));
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break;
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case 0x52: /* CONFIG */
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res = i2c_smbus_read_byte_data(cl, 1);
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break;
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case 0x53: /* HYST */
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res = swab16(i2c_smbus_read_word_data (cl, 2));
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res = swab16(i2c_smbus_read_word_data(cl, 2));
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break;
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case 0x55: /* MAX */
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default:
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res = swab16(i2c_smbus_read_word_data (cl, 3));
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res = swab16(i2c_smbus_read_word_data(cl, 3));
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break;
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}
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}
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@ -986,7 +983,7 @@ static void asb100_init_client(struct i2c_client *client)
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vid = vid_from_reg(vid, data->vrm);
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/* Start monitoring */
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asb100_write_value(client, ASB100_REG_CONFIG,
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asb100_write_value(client, ASB100_REG_CONFIG,
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(asb100_read_value(client, ASB100_REG_CONFIG) & 0xf7) | 0x01);
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}
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@ -1075,4 +1072,3 @@ MODULE_LICENSE("GPL");
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module_init(asb100_init);
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module_exit(asb100_exit);
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