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hwmon: (ina2xx) Add support for has_alerts configuration flag

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Add configuration flag indicating if the chip supports alerts and limits
to prepare for adding INA260 support.

Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Guenter Roeck
2024-08-27 12:57:10 -07:00
parent a7e03f9679
commit de0da6ae19
1 changed files with 11 additions and 7 deletions
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drivers/hwmon/ina2xx.c
+11 -7
View File
@@ -129,6 +129,7 @@ enum ina2xx_ids { ina219, ina226 };
struct ina2xx_config {
u16 config_default;
bool has_alerts; /* chip supports alerts and limits */
int calibration_value;
int shunt_div;
int bus_voltage_shift;
@@ -155,6 +156,7 @@ static const struct ina2xx_config ina2xx_config[] = {
.bus_voltage_shift = 3,
.bus_voltage_lsb = 4000,
.power_lsb_factor = 20,
.has_alerts = false,
},
[ina226] = {
.config_default = INA226_CONFIG_DEFAULT,
@@ -163,6 +165,7 @@ static const struct ina2xx_config ina2xx_config[] = {
.bus_voltage_shift = 0,
.bus_voltage_lsb = 1250,
.power_lsb_factor = 25,
.has_alerts = true,
},
};
@@ -624,6 +627,7 @@ static umode_t ina2xx_is_visible(const void *_data, enum hwmon_sensor_types type
u32 attr, int channel)
{
const struct ina2xx_data *data = _data;
bool has_alerts = data->config->has_alerts;
enum ina2xx_ids chip = data->chip;
switch (type) {
@@ -633,12 +637,12 @@ static umode_t ina2xx_is_visible(const void *_data, enum hwmon_sensor_types type
return 0444;
case hwmon_in_lcrit:
case hwmon_in_crit:
if (chip == ina226)
if (has_alerts)
return 0644;
break;
case hwmon_in_lcrit_alarm:
case hwmon_in_crit_alarm:
if (chip == ina226)
if (has_alerts)
return 0444;
break;
default:
@@ -651,12 +655,12 @@ static umode_t ina2xx_is_visible(const void *_data, enum hwmon_sensor_types type
return 0444;
case hwmon_curr_lcrit:
case hwmon_curr_crit:
if (chip == ina226)
if (has_alerts)
return 0644;
break;
case hwmon_curr_lcrit_alarm:
case hwmon_curr_crit_alarm:
if (chip == ina226)
if (has_alerts)
return 0444;
break;
default:
@@ -668,11 +672,11 @@ static umode_t ina2xx_is_visible(const void *_data, enum hwmon_sensor_types type
case hwmon_power_input:
return 0444;
case hwmon_power_crit:
if (chip == ina226)
if (has_alerts)
return 0644;
break;
case hwmon_power_crit_alarm:
if (chip == ina226)
if (has_alerts)
return 0444;
break;
default:
@@ -802,7 +806,7 @@ static int ina2xx_init(struct device *dev, struct ina2xx_data *data)
if (ret < 0)
return ret;
if (data->chip == ina226) {
if (data->config->has_alerts) {
bool active_high = device_property_read_bool(dev, "ti,alert-polarity-active-high");
regmap_update_bits(regmap, INA226_MASK_ENABLE,