Add support for another family of Infineon Multi-phase controllers.
The xdpe11280 uses linear instead of vid data format for VOUT.
Add the required logic to detect VOUT_MODE during identification,
and set the format accordingly.
Signed-off-by: Marcello Sylvester Bauer <sylv@xxxxxxx>
---
Documentation/hwmon/xdpe12284.rst | 10 +++++++---
drivers/hwmon/pmbus/xdpe12284.c | 17 ++++++++++++++++-
2 files changed, 23 insertions(+), 4 deletions(-)
diff --git a/Documentation/hwmon/xdpe12284.rst b/Documentation/hwmon/xdpe12284.rst
index 67d1f87808e5..e9a5a19b0c3d 100644
--- a/Documentation/hwmon/xdpe12284.rst
+++ b/Documentation/hwmon/xdpe12284.rst
@@ -5,6 +5,10 @@ Kernel driver xdpe122
Supported chips:
+ * Infineon XDPE11280
+
+ Prefix: 'xdpe11280'
+
* Infineon XDPE12254
Prefix: 'xdpe12254'
@@ -20,9 +24,9 @@ Authors:
Description
-----------
-This driver implements support for Infineon Multi-phase XDPE122 family
-dual loop voltage regulators.
-The family includes XDPE12284 and XDPE12254 devices.
+This driver implements support for Infineon Multi-phase XDPE112 and XDPE122
+family dual loop voltage regulators.
+These families include XDPE11280, XDPE12284 and XDPE12254 devices.
The devices from this family complaint with:
- Intel VR13 and VR13HC rev 1.3, IMVP8 rev 1.2 and IMPVP9 rev 1.3 DC-DC
diff --git a/drivers/hwmon/pmbus/xdpe12284.c b/drivers/hwmon/pmbus/xdpe12284.c
index b07da06a40c9..ec947c697670 100644
--- a/drivers/hwmon/pmbus/xdpe12284.c
+++ b/drivers/hwmon/pmbus/xdpe12284.c
@@ -27,6 +27,9 @@ static int xdpe122_read_word_data(struct i2c_client *client, int page,
s32 mantissa;
int ret;
+ if (info->format[PSC_VOLTAGE_OUT] == linear)
+ return -ENODATA;
+
switch (reg) {
case PMBUS_VOUT_OV_FAULT_LIMIT:
case PMBUS_VOUT_UV_FAULT_LIMIT:
@@ -75,9 +78,19 @@ static int xdpe122_read_word_data(struct i2c_client *client, int page,
static int xdpe122_identify(struct i2c_client *client,
struct pmbus_driver_info *info)
{
- u8 vout_params;
+ u8 vout_mode, vout_params;
int i, ret;
+ ret = pmbus_read_byte_data(client, 0, PMBUS_VOUT_MODE);
+ if (ret < 0)
+ return ret;
+
+ vout_mode = ret >> 5;
+ if (vout_mode == 0) {
+ info->format[PSC_VOLTAGE_OUT] = linear;
+ return 0;
+ }
+
for (i = 0; i < XDPE122_PAGE_NUM; i++) {
/* Read the register with VOUT scaling value.*/
ret = pmbus_read_byte_data(client, i, PMBUS_VOUT_MODE);
@@ -140,6 +153,7 @@ static int xdpe122_probe(struct i2c_client *client)
}
static const struct i2c_device_id xdpe122_id[] = {
+ {"xdpe11280", 0},
{"xdpe12254", 0},
{"xdpe12284", 0},
{}
@@ -148,6 +162,7 @@ static const struct i2c_device_id xdpe122_id[] = {
MODULE_DEVICE_TABLE(i2c, xdpe122_id);
static const struct of_device_id __maybe_unused xdpe122_of_match[] = {
+ {.compatible = "infineon,xdpe11280"},
{.compatible = "infineon,xdpe12254"},
{.compatible = "infineon,xdpe12284"},
{}
--
2.34.1
