[PATCH 1/2] hwmon/pmbus: (isl68137) Add support for Renesas RAA228942 and RAA228943

From: Dawei Liu

Date: Mon Mar 16 2026 - 01:36:50 EST


Both RAA228942 and RAA228943 are digital dual-output
16-Phase(X+Y ≤ 16) PWM controllers

Signed-off-by: Dawei Liu <dawei.liu.jy@xxxxxxxxxxx>
---
Documentation/hwmon/isl68137.rst | 20 ++++++++++++++++++++
drivers/hwmon/pmbus/isl68137.c | 6 ++++++
2 files changed, 26 insertions(+)

diff --git a/Documentation/hwmon/isl68137.rst b/Documentation/hwmon/isl68137.rst
index e77f582c2..0ce20d091 100644
--- a/Documentation/hwmon/isl68137.rst
+++ b/Documentation/hwmon/isl68137.rst
@@ -394,6 +394,26 @@ Supported chips:

Provided by Renesas upon request and NDA

+ * Renesas RAA228942
+
+ Prefix: 'raa228942'
+
+ Addresses scanned: -
+
+ Datasheet:
+
+ Provided by Renesas upon request and NDA
+
+ * Renesas RAA228943
+
+ Prefix: 'raa228943'
+
+ Addresses scanned: -
+
+ Datasheet:
+
+ Provided by Renesas upon request and NDA
+
* Renesas RAA229001

Prefix: 'raa229001'
diff --git a/drivers/hwmon/pmbus/isl68137.c b/drivers/hwmon/pmbus/isl68137.c
index 78cff9712..da2484d42 100644
--- a/drivers/hwmon/pmbus/isl68137.c
+++ b/drivers/hwmon/pmbus/isl68137.c
@@ -63,6 +63,8 @@ enum chips {
raa228228,
raa228244,
raa228246,
+ raa228942,
+ raa228943,
raa229001,
raa229004,
raa229141,
@@ -478,6 +480,8 @@ static const struct i2c_device_id raa_dmpvr_id[] = {
{"raa228228", raa_dmpvr2_2rail_nontc},
{"raa228244", raa_dmpvr2_2rail_nontc},
{"raa228246", raa_dmpvr2_2rail_nontc},
+ {"raa228942", raa_dmpvr2_2rail_nontc},
+ {"raa228943", raa_dmpvr2_2rail_nontc},
{"raa229001", raa_dmpvr2_2rail},
{"raa229004", raa_dmpvr2_2rail},
{"raa229141", raa_dmpvr2_2rail_pmbus},
@@ -529,6 +533,8 @@ static const struct of_device_id isl68137_of_match[] = {
{ .compatible = "renesas,raa228228", .data = (void *)raa_dmpvr2_2rail_nontc },
{ .compatible = "renesas,raa228244", .data = (void *)raa_dmpvr2_2rail_nontc },
{ .compatible = "renesas,raa228246", .data = (void *)raa_dmpvr2_2rail_nontc },
+ { .compatible = "renesas,raa228942", .data = (void *)raa_dmpvr2_2rail_nontc },
+ { .compatible = "renesas,raa228943", .data = (void *)raa_dmpvr2_2rail_nontc },
{ .compatible = "renesas,raa229001", .data = (void *)raa_dmpvr2_2rail },
{ .compatible = "renesas,raa229004", .data = (void *)raa_dmpvr2_2rail },
{ .compatible = "renesas,raa229621", .data = (void *)raa_dmpvr2_2rail },
--
2.34.1