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author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-04-19 09:23:28 -0300 |
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committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-04-19 09:23:28 -0300 |
commit | d5aeee8cb28317ef608ecac421abc4d986d585d2 (patch) | |
tree | 70ec8ed8891f26e5c58152ffca9924ea1c58fe3a /drivers/hwmon/lm63.c | |
parent | 32898a145404acbebe3256709e012c2830a2043b (diff) | |
parent | e816b57a337ea3b755de72bec38c10c864f23015 (diff) | |
download | blackbird-op-linux-d5aeee8cb28317ef608ecac421abc4d986d585d2.tar.gz blackbird-op-linux-d5aeee8cb28317ef608ecac421abc4d986d585d2.zip |
Merge tag 'v3.4-rc3' into staging/for_v3.5
* tag 'v3.4-rc3': (3755 commits)
Linux 3.4-rc3
x86-32: fix up strncpy_from_user() sign error
ARM: 7386/1: jump_label: fixup for rename to static_key
ARM: 7384/1: ThumbEE: Disable userspace TEEHBR access for !CONFIG_ARM_THUMBEE
ARM: 7382/1: mm: truncate memory banks to fit in 4GB space for classic MMU
ARM: 7359/2: smp_twd: Only wait for reprogramming on active cpus
PCI: Fix regression in pci_restore_state(), v3
SCSI: Fix error handling when no ULD is attached
ARM: OMAP: clock: cleanup CPUfreq leftovers, fix build errors
ARM: dts: remove blank interrupt-parent properties
ARM: EXYNOS: Fix Kconfig dependencies for device tree enabled machine files
do not export kernel's NULL #define to userspace
ARM: EXYNOS: Remove broken config values for touchscren for NURI board
ARM: EXYNOS: set fix xusbxti clock for NURI and Universal210 boards
ARM: EXYNOS: fix regulator name for NURI board
ARM: SAMSUNG: make SAMSUNG_PM_DEBUG select DEBUG_LL
cpufreq: OMAP: fix build errors: depends on ARCH_OMAP2PLUS
sparc64: Eliminate obsolete __handle_softirq() function
sparc64: Fix bootup crash on sun4v.
ARM: msm: Fix section mismatches in proc_comm.c
...
Diffstat (limited to 'drivers/hwmon/lm63.c')
-rw-r--r-- | drivers/hwmon/lm63.c | 586 |
1 files changed, 337 insertions, 249 deletions
diff --git a/drivers/hwmon/lm63.c b/drivers/hwmon/lm63.c index 15c05cc83e2c..602a0f0b0de8 100644 --- a/drivers/hwmon/lm63.c +++ b/drivers/hwmon/lm63.c @@ -148,46 +148,9 @@ static const unsigned short normal_i2c[] = { 0x18, 0x4c, 0x4e, I2C_CLIENT_END }; #define UPDATE_INTERVAL(max, rate) \ ((1000 << (LM63_MAX_CONVRATE - (rate))) / (max)) -/* - * Functions declaration - */ - -static int lm63_probe(struct i2c_client *client, - const struct i2c_device_id *id); -static int lm63_remove(struct i2c_client *client); - -static struct lm63_data *lm63_update_device(struct device *dev); - -static int lm63_detect(struct i2c_client *client, struct i2c_board_info *info); -static void lm63_init_client(struct i2c_client *client); - enum chips { lm63, lm64, lm96163 }; /* - * Driver data (common to all clients) - */ - -static const struct i2c_device_id lm63_id[] = { - { "lm63", lm63 }, - { "lm64", lm64 }, - { "lm96163", lm96163 }, - { } -}; -MODULE_DEVICE_TABLE(i2c, lm63_id); - -static struct i2c_driver lm63_driver = { - .class = I2C_CLASS_HWMON, - .driver = { - .name = "lm63", - }, - .probe = lm63_probe, - .remove = lm63_remove, - .id_table = lm63_id, - .detect = lm63_detect, - .address_list = normal_i2c, -}; - -/* * Client data (each client gets its own) */ @@ -242,6 +205,145 @@ static inline int lut_temp_from_reg(struct lm63_data *data, int nr) return data->temp8[nr] * (data->lut_temp_highres ? 500 : 1000); } +static inline int lut_temp_to_reg(struct lm63_data *data, long val) +{ + val -= data->temp2_offset; + if (data->lut_temp_highres) + return DIV_ROUND_CLOSEST(SENSORS_LIMIT(val, 0, 127500), 500); + else + return DIV_ROUND_CLOSEST(SENSORS_LIMIT(val, 0, 127000), 1000); +} + +/* + * Update the lookup table register cache. + * client->update_lock must be held when calling this function. + */ +static void lm63_update_lut(struct i2c_client *client) +{ + struct lm63_data *data = i2c_get_clientdata(client); + int i; + + if (time_after(jiffies, data->lut_last_updated + 5 * HZ) || + !data->lut_valid) { + for (i = 0; i < data->lut_size; i++) { + data->pwm1[1 + i] = i2c_smbus_read_byte_data(client, + LM63_REG_LUT_PWM(i)); + data->temp8[3 + i] = i2c_smbus_read_byte_data(client, + LM63_REG_LUT_TEMP(i)); + } + data->lut_temp_hyst = i2c_smbus_read_byte_data(client, + LM63_REG_LUT_TEMP_HYST); + + data->lut_last_updated = jiffies; + data->lut_valid = 1; + } +} + +static struct lm63_data *lm63_update_device(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm63_data *data = i2c_get_clientdata(client); + unsigned long next_update; + + mutex_lock(&data->update_lock); + + next_update = data->last_updated + + msecs_to_jiffies(data->update_interval) + 1; + + if (time_after(jiffies, next_update) || !data->valid) { + if (data->config & 0x04) { /* tachometer enabled */ + /* order matters for fan1_input */ + data->fan[0] = i2c_smbus_read_byte_data(client, + LM63_REG_TACH_COUNT_LSB) & 0xFC; + data->fan[0] |= i2c_smbus_read_byte_data(client, + LM63_REG_TACH_COUNT_MSB) << 8; + data->fan[1] = (i2c_smbus_read_byte_data(client, + LM63_REG_TACH_LIMIT_LSB) & 0xFC) + | (i2c_smbus_read_byte_data(client, + LM63_REG_TACH_LIMIT_MSB) << 8); + } + + data->pwm1_freq = i2c_smbus_read_byte_data(client, + LM63_REG_PWM_FREQ); + if (data->pwm1_freq == 0) + data->pwm1_freq = 1; + data->pwm1[0] = i2c_smbus_read_byte_data(client, + LM63_REG_PWM_VALUE); + + data->temp8[0] = i2c_smbus_read_byte_data(client, + LM63_REG_LOCAL_TEMP); + data->temp8[1] = i2c_smbus_read_byte_data(client, + LM63_REG_LOCAL_HIGH); + + /* order matters for temp2_input */ + data->temp11[0] = i2c_smbus_read_byte_data(client, + LM63_REG_REMOTE_TEMP_MSB) << 8; + data->temp11[0] |= i2c_smbus_read_byte_data(client, + LM63_REG_REMOTE_TEMP_LSB); + data->temp11[1] = (i2c_smbus_read_byte_data(client, + LM63_REG_REMOTE_LOW_MSB) << 8) + | i2c_smbus_read_byte_data(client, + LM63_REG_REMOTE_LOW_LSB); + data->temp11[2] = (i2c_smbus_read_byte_data(client, + LM63_REG_REMOTE_HIGH_MSB) << 8) + | i2c_smbus_read_byte_data(client, + LM63_REG_REMOTE_HIGH_LSB); + data->temp11[3] = (i2c_smbus_read_byte_data(client, + LM63_REG_REMOTE_OFFSET_MSB) << 8) + | i2c_smbus_read_byte_data(client, + LM63_REG_REMOTE_OFFSET_LSB); + + if (data->kind == lm96163) + data->temp11u = (i2c_smbus_read_byte_data(client, + LM96163_REG_REMOTE_TEMP_U_MSB) << 8) + | i2c_smbus_read_byte_data(client, + LM96163_REG_REMOTE_TEMP_U_LSB); + + data->temp8[2] = i2c_smbus_read_byte_data(client, + LM63_REG_REMOTE_TCRIT); + data->temp2_crit_hyst = i2c_smbus_read_byte_data(client, + LM63_REG_REMOTE_TCRIT_HYST); + + data->alarms = i2c_smbus_read_byte_data(client, + LM63_REG_ALERT_STATUS) & 0x7F; + + data->last_updated = jiffies; + data->valid = 1; + } + + lm63_update_lut(client); + + mutex_unlock(&data->update_lock); + + return data; +} + +/* + * Trip points in the lookup table should be in ascending order for both + * temperatures and PWM output values. + */ +static int lm63_lut_looks_bad(struct i2c_client *client) +{ + struct lm63_data *data = i2c_get_clientdata(client); + int i; + + mutex_lock(&data->update_lock); + lm63_update_lut(client); + + for (i = 1; i < data->lut_size; i++) { + if (data->pwm1[1 + i - 1] > data->pwm1[1 + i] + || data->temp8[3 + i - 1] > data->temp8[3 + i]) { + dev_warn(&client->dev, + "Lookup table doesn't look sane (check entries %d and %d)\n", + i, i + 1); + break; + } + } + mutex_unlock(&data->update_lock); + + return i == data->lut_size ? 0 : 1; +} + /* * Sysfs callback functions and files */ @@ -294,13 +396,16 @@ static ssize_t show_pwm1(struct device *dev, struct device_attribute *devattr, return sprintf(buf, "%d\n", pwm); } -static ssize_t set_pwm1(struct device *dev, struct device_attribute *dummy, +static ssize_t set_pwm1(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct i2c_client *client = to_i2c_client(dev); struct lm63_data *data = i2c_get_clientdata(client); + int nr = attr->index; unsigned long val; int err; + u8 reg; if (!(data->config_fan & 0x20)) /* register is read-only */ return -EPERM; @@ -309,11 +414,13 @@ static ssize_t set_pwm1(struct device *dev, struct device_attribute *dummy, if (err) return err; + reg = nr ? LM63_REG_LUT_PWM(nr - 1) : LM63_REG_PWM_VALUE; val = SENSORS_LIMIT(val, 0, 255); + mutex_lock(&data->update_lock); - data->pwm1[0] = data->pwm_highres ? val : + data->pwm1[nr] = data->pwm_highres ? val : (val * data->pwm1_freq * 2 + 127) / 255; - i2c_smbus_write_byte_data(client, LM63_REG_PWM_VALUE, data->pwm1[0]); + i2c_smbus_write_byte_data(client, reg, data->pwm1[nr]); mutex_unlock(&data->update_lock); return count; } @@ -325,6 +432,41 @@ static ssize_t show_pwm1_enable(struct device *dev, return sprintf(buf, "%d\n", data->config_fan & 0x20 ? 1 : 2); } +static ssize_t set_pwm1_enable(struct device *dev, + struct device_attribute *dummy, + const char *buf, size_t count) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm63_data *data = i2c_get_clientdata(client); + unsigned long val; + int err; + + err = kstrtoul(buf, 10, &val); + if (err) + return err; + if (val < 1 || val > 2) + return -EINVAL; + + /* + * Only let the user switch to automatic mode if the lookup table + * looks sane. + */ + if (val == 2 && lm63_lut_looks_bad(client)) + return -EPERM; + + mutex_lock(&data->update_lock); + data->config_fan = i2c_smbus_read_byte_data(client, + LM63_REG_CONFIG_FAN); + if (val == 1) + data->config_fan |= 0x20; + else + data->config_fan &= ~0x20; + i2c_smbus_write_byte_data(client, LM63_REG_CONFIG_FAN, + data->config_fan); + mutex_unlock(&data->update_lock); + return count; +} + /* * There are 8bit registers for both local(temp1) and remote(temp2) sensor. * For remote sensor registers temp2_offset has to be considered, @@ -367,23 +509,31 @@ static ssize_t set_temp8(struct device *dev, struct device_attribute *devattr, struct i2c_client *client = to_i2c_client(dev); struct lm63_data *data = i2c_get_clientdata(client); int nr = attr->index; - int reg = nr == 2 ? LM63_REG_REMOTE_TCRIT : LM63_REG_LOCAL_HIGH; long val; int err; int temp; + u8 reg; err = kstrtol(buf, 10, &val); if (err) return err; mutex_lock(&data->update_lock); - if (nr == 2) { + switch (nr) { + case 2: + reg = LM63_REG_REMOTE_TCRIT; if (data->remote_unsigned) temp = TEMP8U_TO_REG(val - data->temp2_offset); else temp = TEMP8_TO_REG(val - data->temp2_offset); - } else { + break; + case 1: + reg = LM63_REG_LOCAL_HIGH; temp = TEMP8_TO_REG(val); + break; + default: /* lookup table */ + reg = LM63_REG_LUT_TEMP(nr - 3); + temp = lut_temp_to_reg(data, val); } data->temp8[nr] = temp; i2c_smbus_write_byte_data(client, reg, temp); @@ -613,65 +763,78 @@ static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan, set_fan, 1); static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm1, set_pwm1, 0); -static DEVICE_ATTR(pwm1_enable, S_IRUGO, show_pwm1_enable, NULL); -static SENSOR_DEVICE_ATTR(pwm1_auto_point1_pwm, S_IRUGO, show_pwm1, NULL, 1); -static SENSOR_DEVICE_ATTR(pwm1_auto_point1_temp, S_IRUGO, - show_lut_temp, NULL, 3); +static DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, + show_pwm1_enable, set_pwm1_enable); +static SENSOR_DEVICE_ATTR(pwm1_auto_point1_pwm, S_IWUSR | S_IRUGO, + show_pwm1, set_pwm1, 1); +static SENSOR_DEVICE_ATTR(pwm1_auto_point1_temp, S_IWUSR | S_IRUGO, + show_lut_temp, set_temp8, 3); static SENSOR_DEVICE_ATTR(pwm1_auto_point1_temp_hyst, S_IRUGO, show_lut_temp_hyst, NULL, 3); -static SENSOR_DEVICE_ATTR(pwm1_auto_point2_pwm, S_IRUGO, show_pwm1, NULL, 2); -static SENSOR_DEVICE_ATTR(pwm1_auto_point2_temp, S_IRUGO, - show_lut_temp, NULL, 4); +static SENSOR_DEVICE_ATTR(pwm1_auto_point2_pwm, S_IWUSR | S_IRUGO, + show_pwm1, set_pwm1, 2); +static SENSOR_DEVICE_ATTR(pwm1_auto_point2_temp, S_IWUSR | S_IRUGO, + show_lut_temp, set_temp8, 4); static SENSOR_DEVICE_ATTR(pwm1_auto_point2_temp_hyst, S_IRUGO, show_lut_temp_hyst, NULL, 4); -static SENSOR_DEVICE_ATTR(pwm1_auto_point3_pwm, S_IRUGO, show_pwm1, NULL, 3); -static SENSOR_DEVICE_ATTR(pwm1_auto_point3_temp, S_IRUGO, - show_lut_temp, NULL, 5); +static SENSOR_DEVICE_ATTR(pwm1_auto_point3_pwm, S_IWUSR | S_IRUGO, + show_pwm1, set_pwm1, 3); +static SENSOR_DEVICE_ATTR(pwm1_auto_point3_temp, S_IWUSR | S_IRUGO, + show_lut_temp, set_temp8, 5); static SENSOR_DEVICE_ATTR(pwm1_auto_point3_temp_hyst, S_IRUGO, show_lut_temp_hyst, NULL, 5); -static SENSOR_DEVICE_ATTR(pwm1_auto_point4_pwm, S_IRUGO, show_pwm1, NULL, 4); -static SENSOR_DEVICE_ATTR(pwm1_auto_point4_temp, S_IRUGO, - show_lut_temp, NULL, 6); +static SENSOR_DEVICE_ATTR(pwm1_auto_point4_pwm, S_IWUSR | S_IRUGO, + show_pwm1, set_pwm1, 4); +static SENSOR_DEVICE_ATTR(pwm1_auto_point4_temp, S_IWUSR | S_IRUGO, + show_lut_temp, set_temp8, 6); static SENSOR_DEVICE_ATTR(pwm1_auto_point4_temp_hyst, S_IRUGO, show_lut_temp_hyst, NULL, 6); -static SENSOR_DEVICE_ATTR(pwm1_auto_point5_pwm, S_IRUGO, show_pwm1, NULL, 5); -static SENSOR_DEVICE_ATTR(pwm1_auto_point5_temp, S_IRUGO, - show_lut_temp, NULL, 7); +static SENSOR_DEVICE_ATTR(pwm1_auto_point5_pwm, S_IWUSR | S_IRUGO, + show_pwm1, set_pwm1, 5); +static SENSOR_DEVICE_ATTR(pwm1_auto_point5_temp, S_IWUSR | S_IRUGO, + show_lut_temp, set_temp8, 7); static SENSOR_DEVICE_ATTR(pwm1_auto_point5_temp_hyst, S_IRUGO, show_lut_temp_hyst, NULL, 7); -static SENSOR_DEVICE_ATTR(pwm1_auto_point6_pwm, S_IRUGO, show_pwm1, NULL, 6); -static SENSOR_DEVICE_ATTR(pwm1_auto_point6_temp, S_IRUGO, - show_lut_temp, NULL, 8); +static SENSOR_DEVICE_ATTR(pwm1_auto_point6_pwm, S_IWUSR | S_IRUGO, + show_pwm1, set_pwm1, 6); +static SENSOR_DEVICE_ATTR(pwm1_auto_point6_temp, S_IWUSR | S_IRUGO, + show_lut_temp, set_temp8, 8); static SENSOR_DEVICE_ATTR(pwm1_auto_point6_temp_hyst, S_IRUGO, show_lut_temp_hyst, NULL, 8); -static SENSOR_DEVICE_ATTR(pwm1_auto_point7_pwm, S_IRUGO, show_pwm1, NULL, 7); -static SENSOR_DEVICE_ATTR(pwm1_auto_point7_temp, S_IRUGO, - show_lut_temp, NULL, 9); +static SENSOR_DEVICE_ATTR(pwm1_auto_point7_pwm, S_IWUSR | S_IRUGO, + show_pwm1, set_pwm1, 7); +static SENSOR_DEVICE_ATTR(pwm1_auto_point7_temp, S_IWUSR | S_IRUGO, + show_lut_temp, set_temp8, 9); static SENSOR_DEVICE_ATTR(pwm1_auto_point7_temp_hyst, S_IRUGO, show_lut_temp_hyst, NULL, 9); -static SENSOR_DEVICE_ATTR(pwm1_auto_point8_pwm, S_IRUGO, show_pwm1, NULL, 8); -static SENSOR_DEVICE_ATTR(pwm1_auto_point8_temp, S_IRUGO, - show_lut_temp, NULL, 10); +static SENSOR_DEVICE_ATTR(pwm1_auto_point8_pwm, S_IWUSR | S_IRUGO, + show_pwm1, set_pwm1, 8); +static SENSOR_DEVICE_ATTR(pwm1_auto_point8_temp, S_IWUSR | S_IRUGO, + show_lut_temp, set_temp8, 10); static SENSOR_DEVICE_ATTR(pwm1_auto_point8_temp_hyst, S_IRUGO, show_lut_temp_hyst, NULL, 10); -static SENSOR_DEVICE_ATTR(pwm1_auto_point9_pwm, S_IRUGO, show_pwm1, NULL, 9); -static SENSOR_DEVICE_ATTR(pwm1_auto_point9_temp, S_IRUGO, - show_lut_temp, NULL, 11); +static SENSOR_DEVICE_ATTR(pwm1_auto_point9_pwm, S_IWUSR | S_IRUGO, + show_pwm1, set_pwm1, 9); +static SENSOR_DEVICE_ATTR(pwm1_auto_point9_temp, S_IWUSR | S_IRUGO, + show_lut_temp, set_temp8, 11); static SENSOR_DEVICE_ATTR(pwm1_auto_point9_temp_hyst, S_IRUGO, show_lut_temp_hyst, NULL, 11); -static SENSOR_DEVICE_ATTR(pwm1_auto_point10_pwm, S_IRUGO, show_pwm1, NULL, 10); -static SENSOR_DEVICE_ATTR(pwm1_auto_point10_temp, S_IRUGO, - show_lut_temp, NULL, 12); +static SENSOR_DEVICE_ATTR(pwm1_auto_point10_pwm, S_IWUSR | S_IRUGO, + show_pwm1, set_pwm1, 10); +static SENSOR_DEVICE_ATTR(pwm1_auto_point10_temp, S_IWUSR | S_IRUGO, + show_lut_temp, set_temp8, 12); static SENSOR_DEVICE_ATTR(pwm1_auto_point10_temp_hyst, S_IRUGO, show_lut_temp_hyst, NULL, 12); -static SENSOR_DEVICE_ATTR(pwm1_auto_point11_pwm, S_IRUGO, show_pwm1, NULL, 11); -static SENSOR_DEVICE_ATTR(pwm1_auto_point11_temp, S_IRUGO, - show_lut_temp, NULL, 13); +static SENSOR_DEVICE_ATTR(pwm1_auto_point11_pwm, S_IWUSR | S_IRUGO, + show_pwm1, set_pwm1, 11); +static SENSOR_DEVICE_ATTR(pwm1_auto_point11_temp, S_IWUSR | S_IRUGO, + show_lut_temp, set_temp8, 13); static SENSOR_DEVICE_ATTR(pwm1_auto_point11_temp_hyst, S_IRUGO, show_lut_temp_hyst, NULL, 13); -static SENSOR_DEVICE_ATTR(pwm1_auto_point12_pwm, S_IRUGO, show_pwm1, NULL, 12); -static SENSOR_DEVICE_ATTR(pwm1_auto_point12_temp, S_IRUGO, - show_lut_temp, NULL, 14); +static SENSOR_DEVICE_ATTR(pwm1_auto_point12_pwm, S_IWUSR | S_IRUGO, + show_pwm1, set_pwm1, 12); +static SENSOR_DEVICE_ATTR(pwm1_auto_point12_temp, S_IWUSR | S_IRUGO, + show_lut_temp, set_temp8, 14); static SENSOR_DEVICE_ATTR(pwm1_auto_point12_temp_hyst, S_IRUGO, show_lut_temp_hyst, NULL, 14); @@ -817,28 +980,25 @@ static const struct attribute_group lm63_group_fan1 = { */ /* Return 0 if detection is successful, -ENODEV otherwise */ -static int lm63_detect(struct i2c_client *new_client, +static int lm63_detect(struct i2c_client *client, struct i2c_board_info *info) { - struct i2c_adapter *adapter = new_client->adapter; + struct i2c_adapter *adapter = client->adapter; u8 man_id, chip_id, reg_config1, reg_config2; u8 reg_alert_status, reg_alert_mask; - int address = new_client->addr; + int address = client->addr; if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) return -ENODEV; - man_id = i2c_smbus_read_byte_data(new_client, LM63_REG_MAN_ID); - chip_id = i2c_smbus_read_byte_data(new_client, LM63_REG_CHIP_ID); + man_id = i2c_smbus_read_byte_data(client, LM63_REG_MAN_ID); + chip_id = i2c_smbus_read_byte_data(client, LM63_REG_CHIP_ID); - reg_config1 = i2c_smbus_read_byte_data(new_client, - LM63_REG_CONFIG1); - reg_config2 = i2c_smbus_read_byte_data(new_client, - LM63_REG_CONFIG2); - reg_alert_status = i2c_smbus_read_byte_data(new_client, + reg_config1 = i2c_smbus_read_byte_data(client, LM63_REG_CONFIG1); + reg_config2 = i2c_smbus_read_byte_data(client, LM63_REG_CONFIG2); + reg_alert_status = i2c_smbus_read_byte_data(client, LM63_REG_ALERT_STATUS); - reg_alert_mask = i2c_smbus_read_byte_data(new_client, - LM63_REG_ALERT_MASK); + reg_alert_mask = i2c_smbus_read_byte_data(client, LM63_REG_ALERT_MASK); if (man_id != 0x01 /* National Semiconductor */ || (reg_config1 & 0x18) != 0x00 @@ -863,74 +1023,6 @@ static int lm63_detect(struct i2c_client *new_client, return 0; } -static int lm63_probe(struct i2c_client *new_client, - const struct i2c_device_id *id) -{ - struct lm63_data *data; - int err; - - data = kzalloc(sizeof(struct lm63_data), GFP_KERNEL); - if (!data) { - err = -ENOMEM; - goto exit; - } - - i2c_set_clientdata(new_client, data); - data->valid = 0; - mutex_init(&data->update_lock); - - /* Set the device type */ - data->kind = id->driver_data; - if (data->kind == lm64) - data->temp2_offset = 16000; - - /* Initialize chip */ - lm63_init_client(new_client); - - /* Register sysfs hooks */ - err = sysfs_create_group(&new_client->dev.kobj, &lm63_group); - if (err) - goto exit_free; - if (data->config & 0x04) { /* tachometer enabled */ - err = sysfs_create_group(&new_client->dev.kobj, - &lm63_group_fan1); - if (err) - goto exit_remove_files; - } - if (data->kind == lm96163) { - err = device_create_file(&new_client->dev, - &dev_attr_temp2_type); - if (err) - goto exit_remove_files; - - err = sysfs_create_group(&new_client->dev.kobj, - &lm63_group_extra_lut); - if (err) - goto exit_remove_files; - } - - data->hwmon_dev = hwmon_device_register(&new_client->dev); - if (IS_ERR(data->hwmon_dev)) { - err = PTR_ERR(data->hwmon_dev); - goto exit_remove_files; - } - - return 0; - -exit_remove_files: - sysfs_remove_group(&new_client->dev.kobj, &lm63_group); - sysfs_remove_group(&new_client->dev.kobj, &lm63_group_fan1); - if (data->kind == lm96163) { - device_remove_file(&new_client->dev, &dev_attr_temp2_type); - sysfs_remove_group(&new_client->dev.kobj, - &lm63_group_extra_lut); - } -exit_free: - kfree(data); -exit: - return err; -} - /* * Ideally we shouldn't have to initialize anything, since the BIOS * should have taken care of everything @@ -1010,114 +1102,110 @@ static void lm63_init_client(struct i2c_client *client) (data->config_fan & 0x20) ? "manual" : "auto"); } -static int lm63_remove(struct i2c_client *client) +static int lm63_probe(struct i2c_client *client, + const struct i2c_device_id *id) { - struct lm63_data *data = i2c_get_clientdata(client); + struct lm63_data *data; + int err; - hwmon_device_unregister(data->hwmon_dev); + data = kzalloc(sizeof(struct lm63_data), GFP_KERNEL); + if (!data) { + err = -ENOMEM; + goto exit; + } + + i2c_set_clientdata(client, data); + data->valid = 0; + mutex_init(&data->update_lock); + + /* Set the device type */ + data->kind = id->driver_data; + if (data->kind == lm64) + data->temp2_offset = 16000; + + /* Initialize chip */ + lm63_init_client(client); + + /* Register sysfs hooks */ + err = sysfs_create_group(&client->dev.kobj, &lm63_group); + if (err) + goto exit_free; + if (data->config & 0x04) { /* tachometer enabled */ + err = sysfs_create_group(&client->dev.kobj, &lm63_group_fan1); + if (err) + goto exit_remove_files; + } + if (data->kind == lm96163) { + err = device_create_file(&client->dev, &dev_attr_temp2_type); + if (err) + goto exit_remove_files; + + err = sysfs_create_group(&client->dev.kobj, + &lm63_group_extra_lut); + if (err) + goto exit_remove_files; + } + + data->hwmon_dev = hwmon_device_register(&client->dev); + if (IS_ERR(data->hwmon_dev)) { + err = PTR_ERR(data->hwmon_dev); + goto exit_remove_files; + } + + return 0; + +exit_remove_files: sysfs_remove_group(&client->dev.kobj, &lm63_group); sysfs_remove_group(&client->dev.kobj, &lm63_group_fan1); if (data->kind == lm96163) { device_remove_file(&client->dev, &dev_attr_temp2_type); sysfs_remove_group(&client->dev.kobj, &lm63_group_extra_lut); } - +exit_free: kfree(data); - return 0; +exit: + return err; } -static struct lm63_data *lm63_update_device(struct device *dev) +static int lm63_remove(struct i2c_client *client) { - struct i2c_client *client = to_i2c_client(dev); struct lm63_data *data = i2c_get_clientdata(client); - unsigned long next_update; - int i; - - mutex_lock(&data->update_lock); - - next_update = data->last_updated - + msecs_to_jiffies(data->update_interval) + 1; - - if (time_after(jiffies, next_update) || !data->valid) { - if (data->config & 0x04) { /* tachometer enabled */ - /* order matters for fan1_input */ - data->fan[0] = i2c_smbus_read_byte_data(client, - LM63_REG_TACH_COUNT_LSB) & 0xFC; - data->fan[0] |= i2c_smbus_read_byte_data(client, - LM63_REG_TACH_COUNT_MSB) << 8; - data->fan[1] = (i2c_smbus_read_byte_data(client, - LM63_REG_TACH_LIMIT_LSB) & 0xFC) - | (i2c_smbus_read_byte_data(client, - LM63_REG_TACH_LIMIT_MSB) << 8); - } - - data->pwm1_freq = i2c_smbus_read_byte_data(client, - LM63_REG_PWM_FREQ); - if (data->pwm1_freq == 0) - data->pwm1_freq = 1; - data->pwm1[0] = i2c_smbus_read_byte_data(client, - LM63_REG_PWM_VALUE); - - data->temp8[0] = i2c_smbus_read_byte_data(client, - LM63_REG_LOCAL_TEMP); - data->temp8[1] = i2c_smbus_read_byte_data(client, - LM63_REG_LOCAL_HIGH); - - /* order matters for temp2_input */ - data->temp11[0] = i2c_smbus_read_byte_data(client, - LM63_REG_REMOTE_TEMP_MSB) << 8; - data->temp11[0] |= i2c_smbus_read_byte_data(client, - LM63_REG_REMOTE_TEMP_LSB); - data->temp11[1] = (i2c_smbus_read_byte_data(client, - LM63_REG_REMOTE_LOW_MSB) << 8) - | i2c_smbus_read_byte_data(client, - LM63_REG_REMOTE_LOW_LSB); - data->temp11[2] = (i2c_smbus_read_byte_data(client, - LM63_REG_REMOTE_HIGH_MSB) << 8) - | i2c_smbus_read_byte_data(client, - LM63_REG_REMOTE_HIGH_LSB); - data->temp11[3] = (i2c_smbus_read_byte_data(client, - LM63_REG_REMOTE_OFFSET_MSB) << 8) - | i2c_smbus_read_byte_data(client, - LM63_REG_REMOTE_OFFSET_LSB); - - if (data->kind == lm96163) - data->temp11u = (i2c_smbus_read_byte_data(client, - LM96163_REG_REMOTE_TEMP_U_MSB) << 8) - | i2c_smbus_read_byte_data(client, - LM96163_REG_REMOTE_TEMP_U_LSB); - - data->temp8[2] = i2c_smbus_read_byte_data(client, - LM63_REG_REMOTE_TCRIT); - data->temp2_crit_hyst = i2c_smbus_read_byte_data(client, - LM63_REG_REMOTE_TCRIT_HYST); - - data->alarms = i2c_smbus_read_byte_data(client, - LM63_REG_ALERT_STATUS) & 0x7F; - data->last_updated = jiffies; - data->valid = 1; + hwmon_device_unregister(data->hwmon_dev); + sysfs_remove_group(&client->dev.kobj, &lm63_group); + sysfs_remove_group(&client->dev.kobj, &lm63_group_fan1); + if (data->kind == lm96163) { + device_remove_file(&client->dev, &dev_attr_temp2_type); + sysfs_remove_group(&client->dev.kobj, &lm63_group_extra_lut); } - if (time_after(jiffies, data->lut_last_updated + 5 * HZ) || - !data->lut_valid) { - for (i = 0; i < data->lut_size; i++) { - data->pwm1[1 + i] = i2c_smbus_read_byte_data(client, - LM63_REG_LUT_PWM(i)); - data->temp8[3 + i] = i2c_smbus_read_byte_data(client, - LM63_REG_LUT_TEMP(i)); - } - data->lut_temp_hyst = i2c_smbus_read_byte_data(client, - LM63_REG_LUT_TEMP_HYST); + kfree(data); + return 0; +} - data->lut_last_updated = jiffies; - data->lut_valid = 1; - } +/* + * Driver data (common to all clients) + */ - mutex_unlock(&data->update_lock); +static const struct i2c_device_id lm63_id[] = { + { "lm63", lm63 }, + { "lm64", lm64 }, + { "lm96163", lm96163 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, lm63_id); - return data; -} +static struct i2c_driver lm63_driver = { + .class = I2C_CLASS_HWMON, + .driver = { + .name = "lm63", + }, + .probe = lm63_probe, + .remove = lm63_remove, + .id_table = lm63_id, + .detect = lm63_detect, + .address_list = normal_i2c, +}; module_i2c_driver(lm63_driver); |