diff options
| author | Jeremy Gebben <jgebben@sweptlaser.com> | 2019-02-04 13:19:03 -0700 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2019-02-18 14:23:29 -0800 |
| commit | 57bc30196448e7db360db61da391140d4b69bb62 (patch) | |
| tree | 8b5582153cf2faa0de702b298164529577b05a50 /drivers/hwmon | |
| parent | e2f05d608653cb212edea136ad82107c6be56e1d (diff) | |
| download | linux-57bc30196448e7db360db61da391140d4b69bb62.tar.bz2 | |
hwmon: (lm85) remove freq_map size hardcodes
Allow support for chips that support more than 8 frequencies.
Signed-off-by: Jeremy Gebben <jgebben@sweptlaser.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon')
| -rw-r--r-- | drivers/hwmon/lm85.c | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/drivers/hwmon/lm85.c b/drivers/hwmon/lm85.c index 0a325878e8f5..4b15193d195c 100644 --- a/drivers/hwmon/lm85.c +++ b/drivers/hwmon/lm85.c @@ -198,13 +198,13 @@ static int RANGE_TO_REG(long range) #define RANGE_FROM_REG(val) lm85_range_map[(val) & 0x0f] /* These are the PWM frequency encodings */ -static const int lm85_freq_map[8] = { /* 1 Hz */ +static const int lm85_freq_map[] = { /* 1 Hz */ 10, 15, 23, 30, 38, 47, 61, 94 }; -static const int adm1027_freq_map[8] = { /* 1 Hz */ + +static const int adm1027_freq_map[] = { /* 1 Hz */ 11, 15, 22, 29, 35, 44, 59, 88 }; -#define FREQ_MAP_LEN 8 static int FREQ_TO_REG(const int *map, unsigned int map_size, unsigned long freq) @@ -212,9 +212,9 @@ static int FREQ_TO_REG(const int *map, return find_closest(freq, map, map_size); } -static int FREQ_FROM_REG(const int *map, u8 reg) +static int FREQ_FROM_REG(const int *map, unsigned int map_size, u8 reg) { - return map[reg & 0x07]; + return map[reg % map_size]; } /* @@ -296,6 +296,8 @@ struct lm85_data { struct i2c_client *client; const struct attribute_group *groups[6]; const int *freq_map; + unsigned int freq_map_size; + enum chips type; bool has_vid5; /* true if VID5 is configured for ADT7463 or ADT7468 */ @@ -514,7 +516,7 @@ static struct lm85_data *lm85_update_device(struct device *dev) data->autofan[i].config = lm85_read_value(client, LM85_REG_AFAN_CONFIG(i)); val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i)); - data->pwm_freq[i] = val & 0x07; + data->pwm_freq[i] = val % data->freq_map_size; data->zone[i].range = val >> 4; data->autofan[i].min_pwm = lm85_read_value(client, LM85_REG_AFAN_MINPWM(i)); @@ -791,7 +793,8 @@ static ssize_t show_pwm_freq(struct device *dev, if (IS_ADT7468_HFPWM(data)) freq = 22500; else - freq = FREQ_FROM_REG(data->freq_map, data->pwm_freq[nr]); + freq = FREQ_FROM_REG(data->freq_map, data->freq_map_size, + data->pwm_freq[nr]); return sprintf(buf, "%d\n", freq); } @@ -820,7 +823,7 @@ static ssize_t set_pwm_freq(struct device *dev, lm85_write_value(client, ADT7468_REG_CFG5, data->cfg5); } else { /* Low freq. mode */ data->pwm_freq[nr] = FREQ_TO_REG(data->freq_map, - FREQ_MAP_LEN, val); + data->freq_map_size, val); lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), (data->zone[nr].range << 4) | data->pwm_freq[nr]); @@ -1196,7 +1199,7 @@ static ssize_t set_temp_auto_temp_min(struct device *dev, TEMP_FROM_REG(data->zone[nr].limit)); lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), ((data->zone[nr].range & 0x0f) << 4) - | (data->pwm_freq[nr] & 0x07)); + | data->pwm_freq[nr]); mutex_unlock(&data->update_lock); return count; @@ -1232,7 +1235,7 @@ static ssize_t set_temp_auto_temp_max(struct device *dev, val - min); lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), ((data->zone[nr].range & 0x0f) << 4) - | (data->pwm_freq[nr] & 0x07)); + | data->pwm_freq[nr]); mutex_unlock(&data->update_lock); return count; } @@ -1569,9 +1572,11 @@ static int lm85_probe(struct i2c_client *client, const struct i2c_device_id *id) case emc6d103: case emc6d103s: data->freq_map = adm1027_freq_map; + data->freq_map_size = ARRAY_SIZE(adm1027_freq_map); break; default: data->freq_map = lm85_freq_map; + data->freq_map_size = ARRAY_SIZE(lm85_freq_map); } /* Set the VRM version */ |