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authorJeff Lin <jefflin994697@gmail.com>2025-11-06 18:45:19 +0800
committerGuenter Roeck <linux@roeck-us.net>2025-11-12 12:13:41 -0800
commit71a117d28f87884893f0398fedfdc989d76314ce (patch)
treeb777ccaba06ae0208afb08974212b64743630b71
parent0c7d530a04b4cada1042ecaf49e12dafe90ce30e (diff)
hwmon/pmbus: (isl68137) Add support for raa229141
The RAA229141A is a digital dual output multiphase (X+Y ≤ 12) PWM controller designed to be compliant with Intel VR13, VR13.HC, VR14 and VR14.Cloud specifications, targeting VCORE and auxiliary rails. The RAA229141A supports the Intel SVID interface along with PMBus V1.3 specifications, making it ideal for controlling the microprocessor core and system rails in Intel VR13, VR13.HC, VR14 and VR14.Cloud platforms. Signed-off-by: Jeff Lin <jefflin994697@gmail.com> Link: https://lore.kernel.org/r/20251106104519.2014853-1-jefflin994697@gmail.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
-rw-r--r--Documentation/hwmon/isl68137.rst10
-rw-r--r--drivers/hwmon/pmbus/isl68137.c14
2 files changed, 24 insertions, 0 deletions
diff --git a/Documentation/hwmon/isl68137.rst b/Documentation/hwmon/isl68137.rst
index 5bc029c98383..e77f582c2850 100644
--- a/Documentation/hwmon/isl68137.rst
+++ b/Documentation/hwmon/isl68137.rst
@@ -414,6 +414,16 @@ Supported chips:
Publicly available (after August 2020 launch) at the Renesas website
+ * Renesas RAA229141
+
+ Prefix: 'raa229141'
+
+ Addresses scanned: -
+
+ Datasheet:
+
+ Provided by Renesas upon request and NDA
+
Authors:
- Maxim Sloyko <maxims@google.com>
- Robert Lippert <rlippert@google.com>
diff --git a/drivers/hwmon/pmbus/isl68137.c b/drivers/hwmon/pmbus/isl68137.c
index 52cf62e45a86..f95088fd4dd2 100644
--- a/drivers/hwmon/pmbus/isl68137.c
+++ b/drivers/hwmon/pmbus/isl68137.c
@@ -65,6 +65,7 @@ enum chips {
raa228246,
raa229001,
raa229004,
+ raa229141,
raa229621,
};
@@ -73,6 +74,7 @@ enum variants {
raa_dmpvr2_1rail,
raa_dmpvr2_2rail,
raa_dmpvr2_2rail_nontc,
+ raa_dmpvr2_2rail_pmbus,
raa_dmpvr2_3rail,
raa_dmpvr2_hv,
};
@@ -400,6 +402,17 @@ static int isl68137_probe(struct i2c_client *client)
info->read_word_data = raa_dmpvr2_read_word_data;
info->write_word_data = raa_dmpvr2_write_word_data;
break;
+ case raa_dmpvr2_2rail_pmbus:
+ info->format[PSC_VOLTAGE_IN] = linear,
+ info->format[PSC_VOLTAGE_OUT] = linear,
+ info->format[PSC_CURRENT_IN] = linear;
+ info->format[PSC_CURRENT_OUT] = linear;
+ info->format[PSC_POWER] = linear;
+ info->format[PSC_TEMPERATURE] = linear;
+ info->pages = 2;
+ info->read_word_data = raa_dmpvr2_read_word_data;
+ info->write_word_data = raa_dmpvr2_write_word_data;
+ break;
case raa_dmpvr2_3rail:
info->read_word_data = raa_dmpvr2_read_word_data;
info->write_word_data = raa_dmpvr2_write_word_data;
@@ -470,6 +483,7 @@ static const struct i2c_device_id raa_dmpvr_id[] = {
{"raa228246", raa_dmpvr2_2rail_nontc},
{"raa229001", raa_dmpvr2_2rail},
{"raa229004", raa_dmpvr2_2rail},
+ {"raa229141", raa_dmpvr2_2rail_pmbus},
{"raa229621", raa_dmpvr2_2rail},
{}
};