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hwmon: (ntc_thermistor) use a table to lookup the thermistor type

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Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Peter Rosin 2018-11-21 16:03:46 +00:00 committed by Guenter Roeck
parent e056fe25d9
commit 737c086edd
2 changed files with 25 additions and 30 deletions
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47
drivers/hwmon/ntc_thermistor.c
View File

@ -315,6 +315,23 @@ static const struct ntc_compensation b57891s0103[] = {
{ .temp_c = 155.0, .ohm = 168 },
};
struct ntc_type {
const struct ntc_compensation *comp;
int n_comp;
};
#define NTC_TYPE(ntc, compensation) \
[(ntc)] = { .comp = (compensation), .n_comp = ARRAY_SIZE(compensation) }
static const struct ntc_type ntc_type[] = {
NTC_TYPE(TYPE_B57330V2103, b57330v2103),
NTC_TYPE(TYPE_B57891S0103, b57891s0103),
NTC_TYPE(TYPE_NCPXXWB473, ncpXXwb473),
NTC_TYPE(TYPE_NCPXXWF104, ncpXXwf104),
NTC_TYPE(TYPE_NCPXXWL333, ncpXXwl333),
NTC_TYPE(TYPE_NCPXXXH103, ncpXXxh103),
};
struct ntc_data {
struct ntc_thermistor_platform_data *pdata;
const struct ntc_compensation *comp;
@ -671,37 +688,15 @@ static int ntc_thermistor_probe(struct platform_device *pdev)
data->pdata = pdata;
switch (pdev_id->driver_data) {
case TYPE_NCPXXWB473:
data->comp = ncpXXwb473;
data->n_comp = ARRAY_SIZE(ncpXXwb473);
break;
case TYPE_NCPXXWL333:
data->comp = ncpXXwl333;
data->n_comp = ARRAY_SIZE(ncpXXwl333);
break;
case TYPE_B57330V2103:
data->comp = b57330v2103;
data->n_comp = ARRAY_SIZE(b57330v2103);
break;
case TYPE_NCPXXWF104:
data->comp = ncpXXwf104;
data->n_comp = ARRAY_SIZE(ncpXXwf104);
break;
case TYPE_NCPXXXH103:
data->comp = ncpXXxh103;
data->n_comp = ARRAY_SIZE(ncpXXxh103);
break;
case TYPE_B57891S0103:
data->comp = b57891s0103;
data->n_comp = ARRAY_SIZE(b57891s0103);
break;
default:
if (pdev_id->driver_data >= ARRAY_SIZE(ntc_type)) {
dev_err(dev, "Unknown device type: %lu(%s)\n",
pdev_id->driver_data, pdev_id->name);
return -EINVAL;
}
data->comp = ntc_type[pdev_id->driver_data].comp;
data->n_comp = ntc_type[pdev_id->driver_data].n_comp;
hwmon_dev = devm_hwmon_device_register_with_groups(dev, pdev_id->name,
data, ntc_groups);
if (IS_ERR(hwmon_dev)) {

8
include/linux/platform_data/ntc_thermistor.h
View File

@ -24,12 +24,12 @@
struct iio_channel;
enum ntc_thermistor_type {
TYPE_NCPXXWB473,
TYPE_NCPXXWL333,
TYPE_B57330V2103,
TYPE_NCPXXWF104,
TYPE_NCPXXXH103,
TYPE_B57891S0103,
TYPE_NCPXXWB473,
TYPE_NCPXXWF104,
TYPE_NCPXXWL333,
TYPE_NCPXXXH103,
};
struct ntc_thermistor_platform_data {