hwmon: (pmbus/adm1275) Add support for ADM1276
ADM1276 is mostly compatible to ADM1275, with added support for input power
measurement. Add support for it to the ADM1275 driver.
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
diff --git a/drivers/hwmon/pmbus/adm1275.c b/drivers/hwmon/pmbus/adm1275.c
index 7a9f2d9..fa18112 100644
--- a/drivers/hwmon/pmbus/adm1275.c
+++ b/drivers/hwmon/pmbus/adm1275.c
@@ -23,6 +23,8 @@
#include <linux/i2c.h>
#include "pmbus.h"
+enum chips { adm1275, adm1276 };
+
#define ADM1275_PEAK_IOUT 0xd0
#define ADM1275_PEAK_VIN 0xd1
#define ADM1275_PEAK_VOUT 0xd2
@@ -36,9 +38,12 @@
#define ADM1275_IOUT_WARN2_SELECT (1 << 4)
+#define ADM1276_PEAK_PIN 0xda
+
#define ADM1275_MFR_STATUS_IOUT_WARN2 (1 << 0)
struct adm1275_data {
+ int id;
bool have_oc_fault;
struct pmbus_driver_info info;
};
@@ -49,7 +54,7 @@
{
const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
const struct adm1275_data *data = to_adm1275_data(info);
- int ret;
+ int ret = 0;
if (page)
return -ENXIO;
@@ -78,10 +83,20 @@
case PMBUS_VIRT_READ_VIN_MAX:
ret = pmbus_read_word_data(client, 0, ADM1275_PEAK_VIN);
break;
+ case PMBUS_VIRT_READ_PIN_MAX:
+ if (data->id != adm1276) {
+ ret = -ENXIO;
+ break;
+ }
+ ret = pmbus_read_word_data(client, 0, ADM1276_PEAK_PIN);
+ break;
case PMBUS_VIRT_RESET_IOUT_HISTORY:
case PMBUS_VIRT_RESET_VOUT_HISTORY:
case PMBUS_VIRT_RESET_VIN_HISTORY:
- ret = 0;
+ break;
+ case PMBUS_VIRT_RESET_PIN_HISTORY:
+ if (data->id != adm1276)
+ ret = -ENXIO;
break;
default:
ret = -ENODATA;
@@ -113,6 +128,9 @@
case PMBUS_VIRT_RESET_VIN_HISTORY:
ret = pmbus_write_word_data(client, 0, ADM1275_PEAK_VIN, 0);
break;
+ case PMBUS_VIRT_RESET_PIN_HISTORY:
+ ret = pmbus_write_word_data(client, 0, ADM1276_PEAK_PIN, 0);
+ break;
default:
ret = -ENODATA;
break;
@@ -180,6 +198,7 @@
goto err_mem;
}
+ data->id = id->driver_data;
info = &data->info;
info->pages = 1;
@@ -214,10 +233,33 @@
if (device_config & ADM1275_IOUT_WARN2_SELECT)
data->have_oc_fault = true;
- if (config & ADM1275_VIN_VOUT_SELECT)
- info->func[0] |= PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT;
- else
- info->func[0] |= PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT;
+ switch (id->driver_data) {
+ case adm1275:
+ if (config & ADM1275_VIN_VOUT_SELECT)
+ info->func[0] |=
+ PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT;
+ else
+ info->func[0] |=
+ PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT;
+ break;
+ case adm1276:
+ info->format[PSC_POWER] = direct;
+ info->func[0] |= PMBUS_HAVE_VIN | PMBUS_HAVE_PIN
+ | PMBUS_HAVE_STATUS_INPUT;
+ if (config & ADM1275_VIN_VOUT_SELECT)
+ info->func[0] |=
+ PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT;
+ if (config & ADM1275_VRANGE) {
+ info->m[PSC_POWER] = 6043;
+ info->b[PSC_POWER] = 0;
+ info->R[PSC_POWER] = -2;
+ } else {
+ info->m[PSC_POWER] = 2115;
+ info->b[PSC_POWER] = 0;
+ info->R[PSC_POWER] = -1;
+ }
+ break;
+ }
ret = pmbus_do_probe(client, id, info);
if (ret)
@@ -240,7 +282,8 @@
}
static const struct i2c_device_id adm1275_id[] = {
- {"adm1275", 0},
+ { "adm1275", adm1275 },
+ { "adm1276", adm1276 },
{ }
};
MODULE_DEVICE_TABLE(i2c, adm1275_id);
@@ -265,7 +308,7 @@
}
MODULE_AUTHOR("Guenter Roeck");
-MODULE_DESCRIPTION("PMBus driver for Analog Devices ADM1275");
+MODULE_DESCRIPTION("PMBus driver for Analog Devices ADM1275 and compatibles");
MODULE_LICENSE("GPL");
module_init(adm1275_init);
module_exit(adm1275_exit);