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hwmon: (lm90) Define maximum number of channels that are supported

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Use this define in all the places where literal '3' was used in this
context.

Signed-off-by: Slawomir Stepien <slawomir.stepien@nokia.com>
Link: https://lore.kernel.org/r/20220525073657.573327-6-sst@poczta.fm
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Slawomir Stepien 2022-05-25 09:36:55 +02:00 committed by Guenter Roeck
parent b9e7dfdedb
commit 27f0438972
1 changed files with 15 additions and 12 deletions
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27
drivers/hwmon/lm90.c
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@ -110,6 +110,9 @@
#include <linux/slab.h>
#include <linux/workqueue.h>
/* The maximum number of channels currently supported */
#define MAX_CHANNELS 3
/*
* Addresses to scan
* Address is fully defined internally and cannot be changed except for
@ -681,7 +684,7 @@ struct lm90_data {
struct i2c_client *client;
struct device *hwmon_dev;
u32 chip_config[2];
u32 channel_config[4];
u32 channel_config[MAX_CHANNELS + 1];
struct hwmon_channel_info chip_info;
struct hwmon_channel_info temp_info;
const struct hwmon_channel_info *info[3];
@ -1424,32 +1427,32 @@ static int lm90_set_temphyst(struct lm90_data *data, long val)
return lm90_write_reg(data->client, LM90_REG_TCRIT_HYST, data->temp_hyst);
}
static const u8 lm90_temp_index[3] = {
static const u8 lm90_temp_index[MAX_CHANNELS] = {
LOCAL_TEMP, REMOTE_TEMP, REMOTE2_TEMP
};
static const u8 lm90_temp_min_index[3] = {
static const u8 lm90_temp_min_index[MAX_CHANNELS] = {
LOCAL_LOW, REMOTE_LOW, REMOTE2_LOW
};
static const u8 lm90_temp_max_index[3] = {
static const u8 lm90_temp_max_index[MAX_CHANNELS] = {
LOCAL_HIGH, REMOTE_HIGH, REMOTE2_HIGH
};
static const u8 lm90_temp_crit_index[3] = {
static const u8 lm90_temp_crit_index[MAX_CHANNELS] = {
LOCAL_CRIT, REMOTE_CRIT, REMOTE2_CRIT
};
static const u8 lm90_temp_emerg_index[3] = {
static const u8 lm90_temp_emerg_index[MAX_CHANNELS] = {
LOCAL_EMERG, REMOTE_EMERG, REMOTE2_EMERG
};
static const u16 lm90_min_alarm_bits[3] = { BIT(5), BIT(3), BIT(11) };
static const u16 lm90_max_alarm_bits[3] = { BIT(6), BIT(4), BIT(12) };
static const u16 lm90_crit_alarm_bits[3] = { BIT(0), BIT(1), BIT(9) };
static const u16 lm90_crit_alarm_bits_swapped[3] = { BIT(1), BIT(0), BIT(9) };
static const u16 lm90_emergency_alarm_bits[3] = { BIT(15), BIT(13), BIT(14) };
static const u16 lm90_fault_bits[3] = { BIT(0), BIT(2), BIT(10) };
static const u16 lm90_min_alarm_bits[MAX_CHANNELS] = { BIT(5), BIT(3), BIT(11) };
static const u16 lm90_max_alarm_bits[MAX_CHANNELS] = { BIT(6), BIT(4), BIT(12) };
static const u16 lm90_crit_alarm_bits[MAX_CHANNELS] = { BIT(0), BIT(1), BIT(9) };
static const u16 lm90_crit_alarm_bits_swapped[MAX_CHANNELS] = { BIT(1), BIT(0), BIT(9) };
static const u16 lm90_emergency_alarm_bits[MAX_CHANNELS] = { BIT(15), BIT(13), BIT(14) };
static const u16 lm90_fault_bits[MAX_CHANNELS] = { BIT(0), BIT(2), BIT(10) };
static int lm90_temp_read(struct device *dev, u32 attr, int channel, long *val)
{