hwmon: (nct6775) Use bitops
Using bitops instead of shift operations makes the code easier to read. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Guenter Roeck
parent
32c1431eea
commit
d1bb218687
@ -58,6 +58,7 @@
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#include <linux/err.h>
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#include <linux/mutex.h>
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#include <linux/acpi.h>
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#include <linux/bitops.h>
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#include <linux/dmi.h>
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#include <linux/io.h>
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#include "lm75.h"
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@ -810,7 +811,7 @@ static u16 fan_to_reg(u32 fan, unsigned int divreg)
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static inline unsigned int
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div_from_reg(u8 reg)
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{
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return 1 << reg;
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return BIT(reg);
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}
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/*
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@ -1276,7 +1277,7 @@ static void nct6775_update_fan_div(struct nct6775_data *data)
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data->fan_div[1] = (i & 0x70) >> 4;
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i = nct6775_read_value(data, NCT6775_REG_FANDIV2);
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data->fan_div[2] = i & 0x7;
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if (data->has_fan & (1 << 3))
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if (data->has_fan & BIT(3))
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data->fan_div[3] = (i & 0x70) >> 4;
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}
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@ -1298,7 +1299,7 @@ static void nct6775_init_fan_div(struct nct6775_data *data)
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* We'll compute a better divider later on.
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*/
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for (i = 0; i < ARRAY_SIZE(data->fan_div); i++) {
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if (!(data->has_fan & (1 << i)))
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if (!(data->has_fan & BIT(i)))
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continue;
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if (data->fan_div[i] == 0) {
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data->fan_div[i] = 7;
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@ -1321,7 +1322,7 @@ static void nct6775_init_fan_common(struct device *dev,
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* prevents the unnecessary warning when fanX_min is reported as 0.
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*/
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for (i = 0; i < ARRAY_SIZE(data->fan_min); i++) {
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if (data->has_fan_min & (1 << i)) {
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if (data->has_fan_min & BIT(i)) {
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reg = nct6775_read_value(data, data->REG_FAN_MIN[i]);
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if (!reg)
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nct6775_write_value(data, data->REG_FAN_MIN[i],
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@ -1356,7 +1357,7 @@ static void nct6775_select_fan_div(struct device *dev,
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div_from_reg(fan_div));
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/* Preserve min limit if possible */
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if (data->has_fan_min & (1 << nr)) {
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if (data->has_fan_min & BIT(nr)) {
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fan_min = data->fan_min[nr];
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if (fan_div > data->fan_div[nr]) {
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if (fan_min != 255 && fan_min > 1)
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@ -1387,7 +1388,7 @@ static void nct6775_update_pwm(struct device *dev)
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bool duty_is_dc;
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for (i = 0; i < data->pwm_num; i++) {
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if (!(data->has_pwm & (1 << i)))
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if (!(data->has_pwm & BIT(i)))
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continue;
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duty_is_dc = data->REG_PWM_MODE[i] &&
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@ -1457,7 +1458,7 @@ static void nct6775_update_pwm_limits(struct device *dev)
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u16 reg_t;
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for (i = 0; i < data->pwm_num; i++) {
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if (!(data->has_pwm & (1 << i)))
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if (!(data->has_pwm & BIT(i)))
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continue;
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for (j = 0; j < ARRAY_SIZE(data->fan_time); j++) {
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@ -1534,7 +1535,7 @@ static struct nct6775_data *nct6775_update_device(struct device *dev)
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/* Measured voltages and limits */
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for (i = 0; i < data->in_num; i++) {
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if (!(data->have_in & (1 << i)))
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if (!(data->have_in & BIT(i)))
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continue;
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data->in[i][0] = nct6775_read_value(data,
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@ -1549,14 +1550,14 @@ static struct nct6775_data *nct6775_update_device(struct device *dev)
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for (i = 0; i < ARRAY_SIZE(data->rpm); i++) {
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u16 reg;
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if (!(data->has_fan & (1 << i)))
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if (!(data->has_fan & BIT(i)))
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continue;
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reg = nct6775_read_value(data, data->REG_FAN[i]);
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data->rpm[i] = data->fan_from_reg(reg,
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data->fan_div[i]);
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if (data->has_fan_min & (1 << i))
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if (data->has_fan_min & BIT(i))
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data->fan_min[i] = nct6775_read_value(data,
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data->REG_FAN_MIN[i]);
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data->fan_pulses[i] =
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@ -1571,7 +1572,7 @@ static struct nct6775_data *nct6775_update_device(struct device *dev)
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/* Measured temperatures and limits */
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for (i = 0; i < NUM_TEMP; i++) {
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if (!(data->have_temp & (1 << i)))
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if (!(data->have_temp & BIT(i)))
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continue;
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for (j = 0; j < ARRAY_SIZE(data->reg_temp); j++) {
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if (data->reg_temp[j][i])
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@ -1580,7 +1581,7 @@ static struct nct6775_data *nct6775_update_device(struct device *dev)
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data->reg_temp[j][i]);
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}
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if (i >= NUM_TEMP_FIXED ||
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!(data->have_temp_fixed & (1 << i)))
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!(data->have_temp_fixed & BIT(i)))
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continue;
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data->temp_offset[i]
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= nct6775_read_value(data, data->REG_TEMP_OFFSET[i]);
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@ -1801,7 +1802,7 @@ static umode_t nct6775_in_is_visible(struct kobject *kobj,
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struct nct6775_data *data = dev_get_drvdata(dev);
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int in = index / 5; /* voltage index */
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if (!(data->have_in & (1 << in)))
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if (!(data->have_in & BIT(in)))
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return 0;
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return attr->mode;
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@ -1911,7 +1912,7 @@ store_fan_min(struct device *dev, struct device_attribute *attr,
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* even with the highest divider (128)
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*/
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data->fan_min[nr] = 254;
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new_div = 7; /* 128 == (1 << 7) */
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new_div = 7; /* 128 == BIT(7) */
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dev_warn(dev,
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"fan%u low limit %lu below minimum %u, set to minimum\n",
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nr + 1, val, data->fan_from_reg_min(254, 7));
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@ -1921,7 +1922,7 @@ store_fan_min(struct device *dev, struct device_attribute *attr,
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* even with the lowest divider (1)
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*/
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data->fan_min[nr] = 1;
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new_div = 0; /* 1 == (1 << 0) */
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new_div = 0; /* 1 == BIT(0) */
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dev_warn(dev,
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"fan%u low limit %lu above maximum %u, set to maximum\n",
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nr + 1, val, data->fan_from_reg_min(1, 0));
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@ -2008,14 +2009,14 @@ static umode_t nct6775_fan_is_visible(struct kobject *kobj,
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int fan = index / 6; /* fan index */
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int nr = index % 6; /* attribute index */
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if (!(data->has_fan & (1 << fan)))
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if (!(data->has_fan & BIT(fan)))
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return 0;
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if (nr == 1 && data->ALARM_BITS[FAN_ALARM_BASE + fan] == -1)
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return 0;
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if (nr == 2 && data->BEEP_BITS[FAN_ALARM_BASE + fan] == -1)
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return 0;
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if (nr == 4 && !(data->has_fan_min & (1 << fan)))
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if (nr == 4 && !(data->has_fan_min & BIT(fan)))
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return 0;
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if (nr == 5 && data->kind != nct6775)
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return 0;
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@ -2193,7 +2194,7 @@ static umode_t nct6775_temp_is_visible(struct kobject *kobj,
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int temp = index / 10; /* temp index */
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int nr = index % 10; /* attribute index */
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if (!(data->have_temp & (1 << temp)))
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if (!(data->have_temp & BIT(temp)))
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return 0;
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if (nr == 2 && find_temp_source(data, temp, data->num_temp_alarms) < 0)
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@ -2215,7 +2216,7 @@ static umode_t nct6775_temp_is_visible(struct kobject *kobj,
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return 0;
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/* offset and type only apply to fixed sensors */
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if (nr > 7 && !(data->have_temp_fixed & (1 << temp)))
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if (nr > 7 && !(data->have_temp_fixed & BIT(temp)))
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return 0;
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return attr->mode;
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@ -2484,7 +2485,7 @@ show_pwm_temp_sel_common(struct nct6775_data *data, char *buf, int src)
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int i, sel = 0;
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for (i = 0; i < NUM_TEMP; i++) {
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if (!(data->have_temp & (1 << i)))
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if (!(data->have_temp & BIT(i)))
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continue;
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if (src == data->temp_src[i]) {
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sel = i + 1;
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@ -2520,7 +2521,7 @@ store_pwm_temp_sel(struct device *dev, struct device_attribute *attr,
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return err;
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if (val == 0 || val > NUM_TEMP)
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return -EINVAL;
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if (!(data->have_temp & (1 << (val - 1))) || !data->temp_src[val - 1])
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if (!(data->have_temp & BIT(val - 1)) || !data->temp_src[val - 1])
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return -EINVAL;
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mutex_lock(&data->update_lock);
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@ -2562,7 +2563,7 @@ store_pwm_weight_temp_sel(struct device *dev, struct device_attribute *attr,
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return err;
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if (val > NUM_TEMP)
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return -EINVAL;
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if (val && (!(data->have_temp & (1 << (val - 1))) ||
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if (val && (!(data->have_temp & BIT(val - 1)) ||
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!data->temp_src[val - 1]))
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return -EINVAL;
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@ -2995,7 +2996,7 @@ static umode_t nct6775_pwm_is_visible(struct kobject *kobj,
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int pwm = index / 36; /* pwm index */
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int nr = index % 36; /* attribute index */
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if (!(data->has_pwm & (1 << pwm)))
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if (!(data->has_pwm & BIT(pwm)))
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return 0;
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if ((nr >= 14 && nr <= 18) || nr == 21) /* weight */
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@ -3246,7 +3247,7 @@ static inline void nct6775_init_device(struct nct6775_data *data)
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/* Enable temperature sensors if needed */
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for (i = 0; i < NUM_TEMP; i++) {
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if (!(data->have_temp & (1 << i)))
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if (!(data->have_temp & BIT(i)))
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continue;
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if (!data->reg_temp_config[i])
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continue;
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@ -3264,7 +3265,7 @@ static inline void nct6775_init_device(struct nct6775_data *data)
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diode = nct6775_read_value(data, data->REG_DIODE);
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for (i = 0; i < data->temp_fixed_num; i++) {
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if (!(data->have_temp_fixed & (1 << i)))
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if (!(data->have_temp_fixed & BIT(i)))
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continue;
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if ((tmp & (data->DIODE_MASK << i))) /* diode */
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data->temp_type[i]
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@ -3290,8 +3291,8 @@ nct6775_check_fan_inputs(struct nct6775_data *data)
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if (data->kind == nct6775) {
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regval = superio_inb(sioreg, 0x2c);
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fan3pin = regval & (1 << 6);
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pwm3pin = regval & (1 << 7);
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fan3pin = regval & BIT(6);
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pwm3pin = regval & BIT(7);
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/* On NCT6775, fan4 shares pins with the fdc interface */
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fan4pin = !(superio_inb(sioreg, 0x2A) & 0x80);
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@ -3360,21 +3361,21 @@ nct6775_check_fan_inputs(struct nct6775_data *data)
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} else { /* NCT6779D, NCT6791D, NCT6792D, or NCT6793D */
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regval = superio_inb(sioreg, 0x1c);
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fan3pin = !(regval & (1 << 5));
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fan4pin = !(regval & (1 << 6));
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fan5pin = !(regval & (1 << 7));
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fan3pin = !(regval & BIT(5));
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fan4pin = !(regval & BIT(6));
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fan5pin = !(regval & BIT(7));
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pwm3pin = !(regval & (1 << 0));
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pwm4pin = !(regval & (1 << 1));
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pwm5pin = !(regval & (1 << 2));
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pwm3pin = !(regval & BIT(0));
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pwm4pin = !(regval & BIT(1));
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pwm5pin = !(regval & BIT(2));
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fan4min = fan4pin;
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if (data->kind == nct6791 || data->kind == nct6792 ||
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data->kind == nct6793) {
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regval = superio_inb(sioreg, 0x2d);
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fan6pin = (regval & (1 << 1));
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pwm6pin = (regval & (1 << 0));
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fan6pin = (regval & BIT(1));
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pwm6pin = (regval & BIT(0));
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} else { /* NCT6779D */
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fan6pin = false;
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pwm6pin = false;
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@ -3403,7 +3404,7 @@ static void add_temp_sensors(struct nct6775_data *data, const u16 *regp,
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continue;
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src = nct6775_read_value(data, regp[i]);
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src &= 0x1f;
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if (!src || (*mask & (1 << src)))
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if (!src || (*mask & BIT(src)))
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continue;
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if (src >= data->temp_label_num ||
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!strlen(data->temp_label[src]))
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@ -3411,8 +3412,8 @@ static void add_temp_sensors(struct nct6775_data *data, const u16 *regp,
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index = __ffs(*available);
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nct6775_write_value(data, data->REG_TEMP_SOURCE[index], src);
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*available &= ~(1 << index);
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*mask |= 1 << src;
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*available &= ~BIT(index);
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*mask |= BIT(src);
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}
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}
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@ -3843,7 +3844,7 @@ static int nct6775_probe(struct platform_device *pdev)
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default:
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return -ENODEV;
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}
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data->have_in = (1 << data->in_num) - 1;
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data->have_in = BIT(data->in_num) - 1;
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data->have_temp = 0;
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/*
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@ -3861,10 +3862,10 @@ static int nct6775_probe(struct platform_device *pdev)
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continue;
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src = nct6775_read_value(data, data->REG_TEMP_SOURCE[i]) & 0x1f;
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if (!src || (mask & (1 << src)))
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available |= 1 << i;
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if (!src || (mask & BIT(src)))
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available |= BIT(i);
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mask |= 1 << src;
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mask |= BIT(src);
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}
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/*
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@ -3881,7 +3882,7 @@ static int nct6775_probe(struct platform_device *pdev)
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continue;
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src = nct6775_read_value(data, data->REG_TEMP_SOURCE[i]) & 0x1f;
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if (!src || (mask & (1 << src)))
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if (!src || (mask & BIT(src)))
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continue;
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if (src >= data->temp_label_num ||
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@ -3892,12 +3893,12 @@ static int nct6775_probe(struct platform_device *pdev)
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continue;
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}
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mask |= 1 << src;
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mask |= BIT(src);
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/* Use fixed index for SYSTIN(1), CPUTIN(2), AUXTIN(3) */
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if (src <= data->temp_fixed_num) {
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data->have_temp |= 1 << (src - 1);
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data->have_temp_fixed |= 1 << (src - 1);
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data->have_temp |= BIT(src - 1);
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data->have_temp_fixed |= BIT(src - 1);
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data->reg_temp[0][src - 1] = reg_temp[i];
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data->reg_temp[1][src - 1] = reg_temp_over[i];
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data->reg_temp[2][src - 1] = reg_temp_hyst[i];
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@ -3917,7 +3918,7 @@ static int nct6775_probe(struct platform_device *pdev)
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continue;
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/* Use dynamic index for other sources */
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data->have_temp |= 1 << s;
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data->have_temp |= BIT(s);
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data->reg_temp[0][s] = reg_temp[i];
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data->reg_temp[1][s] = reg_temp_over[i];
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data->reg_temp[2][s] = reg_temp_hyst[i];
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@ -3960,17 +3961,17 @@ static int nct6775_probe(struct platform_device *pdev)
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* are no duplicates.
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*/
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if (src != TEMP_SOURCE_VIRTUAL) {
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if (mask & (1 << src))
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if (mask & BIT(src))
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continue;
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mask |= 1 << src;
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mask |= BIT(src);
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}
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/* Use fixed index for SYSTIN(1), CPUTIN(2), AUXTIN(3) */
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if (src <= data->temp_fixed_num) {
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if (data->have_temp & (1 << (src - 1)))
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if (data->have_temp & BIT(src - 1))
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continue;
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data->have_temp |= 1 << (src - 1);
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data->have_temp_fixed |= 1 << (src - 1);
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data->have_temp |= BIT(src - 1);
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data->have_temp_fixed |= BIT(src - 1);
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data->reg_temp[0][src - 1] = reg_temp_mon[i];
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data->temp_src[src - 1] = src;
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continue;
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@ -3980,7 +3981,7 @@ static int nct6775_probe(struct platform_device *pdev)
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continue;
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/* Use dynamic index for other sources */
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data->have_temp |= 1 << s;
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data->have_temp |= BIT(s);
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data->reg_temp[0][s] = reg_temp_mon[i];
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data->temp_src[s] = src;
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s++;
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@ -3996,13 +3997,13 @@ static int nct6775_probe(struct platform_device *pdev)
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for (i = 0; i < data->temp_label_num - 1; i++) {
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if (!reg_temp_alternate[i])
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continue;
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if (mask & (1 << (i + 1)))
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if (mask & BIT(i + 1))
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continue;
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if (i < data->temp_fixed_num) {
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if (data->have_temp & (1 << i))
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if (data->have_temp & BIT(i))
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continue;
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data->have_temp |= 1 << i;
|
||||
data->have_temp_fixed |= 1 << i;
|
||||
data->have_temp |= BIT(i);
|
||||
data->have_temp_fixed |= BIT(i);
|
||||
data->reg_temp[0][i] = reg_temp_alternate[i];
|
||||
if (i < num_reg_temp) {
|
||||
data->reg_temp[1][i] = reg_temp_over[i];
|
||||
@ -4015,7 +4016,7 @@ static int nct6775_probe(struct platform_device *pdev)
|
||||
if (s >= NUM_TEMP) /* Abort if no more space */
|
||||
break;
|
||||
|
||||
data->have_temp |= 1 << s;
|
||||
data->have_temp |= BIT(s);
|
||||
data->reg_temp[0][s] = reg_temp_alternate[i];
|
||||
data->temp_src[s] = i + 1;
|
||||
s++;
|
||||
@ -4180,7 +4181,7 @@ static int __maybe_unused nct6775_resume(struct device *dev)
|
||||
|
||||
/* Restore limits */
|
||||
for (i = 0; i < data->in_num; i++) {
|
||||
if (!(data->have_in & (1 << i)))
|
||||
if (!(data->have_in & BIT(i)))
|
||||
continue;
|
||||
|
||||
nct6775_write_value(data, data->REG_IN_MINMAX[0][i],
|
||||
@ -4190,7 +4191,7 @@ static int __maybe_unused nct6775_resume(struct device *dev)
|
||||
}
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(data->fan_min); i++) {
|
||||
if (!(data->has_fan_min & (1 << i)))
|
||||
if (!(data->has_fan_min & BIT(i)))
|
||||
continue;
|
||||
|
||||
nct6775_write_value(data, data->REG_FAN_MIN[i],
|
||||
@ -4198,7 +4199,7 @@ static int __maybe_unused nct6775_resume(struct device *dev)
|
||||
}
|
||||
|
||||
for (i = 0; i < NUM_TEMP; i++) {
|
||||
if (!(data->have_temp & (1 << i)))
|
||||
if (!(data->have_temp & BIT(i)))
|
||||
continue;
|
||||
|
||||
for (j = 1; j < ARRAY_SIZE(data->reg_temp); j++)
|
||||
|
||||
Loading…
Reference in New Issue
Block a user