From: Patrick Rudolph <patrick.rudolph@xxxxxxxxxxxxx>
Add support for differntiating between the chips.
The following commits will make use of this mechanism.
Signed-off-by: Patrick Rudolph <patrick.rudolph@xxxxxxxxxxxxx>
Signed-off-by: Naresh Solanki <Naresh.Solanki@xxxxxxxxxxxxx>
---
drivers/hwmon/pmbus/mp2975.c | 27 +++++++++++++++++++--------
1 file changed, 19 insertions(+), 8 deletions(-)
diff --git a/drivers/hwmon/pmbus/mp2975.c b/drivers/hwmon/pmbus/mp2975.c
index 130cfde52e42..04778f2dcbdb 100644
--- a/drivers/hwmon/pmbus/mp2975.c
+++ b/drivers/hwmon/pmbus/mp2975.c
@@ -10,6 +10,7 @@
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
+#include <linux/of_device.h>
#include "pmbus.h"
/* Vendor specific registers. */
@@ -56,8 +57,13 @@
PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT | \
PMBUS_HAVE_POUT | PMBUS_PHASE_VIRTUAL)
+enum chips {
+ mp2975
+};
+
struct mp2975_data {
struct pmbus_driver_info info;
+ enum chips chip_id;
int vout_scale;
int vid_step[MP2975_PAGE_NUM];
int vref[MP2975_PAGE_NUM];
@@ -68,6 +74,13 @@ struct mp2975_data {
int curr_sense_gain[MP2975_PAGE_NUM];
};
+static const struct i2c_device_id mp2975_id[] = {
+ {"mp2975", mp2975},
+ {}
+};
+
+MODULE_DEVICE_TABLE(i2c, mp2975_id);
+
#define to_mp2975_data(x) container_of(x, struct mp2975_data, info)
static int mp2975_read_byte_data(struct i2c_client *client, int page, int reg)
@@ -691,6 +704,11 @@ static int mp2975_probe(struct i2c_client *client)
if (!data)
return -ENOMEM;
+ if (client->dev.of_node)
+ data->chip_id = (enum chips)of_device_get_match_data(&client->dev);
+ else
+ data->chip_id = i2c_match_id(mp2975_id, client)->driver_data;
+
memcpy(&data->info, &mp2975_info, sizeof(*info));
info = &data->info;
@@ -739,15 +757,8 @@ static int mp2975_probe(struct i2c_client *client)
return pmbus_do_probe(client, info);
}
-static const struct i2c_device_id mp2975_id[] = {
- {"mp2975", 0},
- {}
-};
-
-MODULE_DEVICE_TABLE(i2c, mp2975_id);
-
static const struct of_device_id __maybe_unused mp2975_of_match[] = {
- {.compatible = "mps,mp2975"},
+ {.compatible = "mps,mp2975", .data = (void *)mp2975},
{}
};
MODULE_DEVICE_TABLE(of, mp2975_of_match);
--
2.41.0
