HX83121A is a driver IC used to drive MIPI-DSI panels. It is found
in HUAWEI Matebook E Go series (Gaokun2/3) with BOE or CSOT panels.

Signed-off-by: Pengyu Luo <mitltlatltl@gmail.com>
---
 .../display/panel/himax,hx83121a.yaml         | 87 +++++++++++++++++++
 1 file changed, 87 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/panel/himax,hx83121a.yaml

diff --git a/Documentation/devicetree/bindings/display/panel/himax,hx83121a.yaml b/Documentation/devicetree/bindings/display/panel/himax,hx83121a.yaml
new file mode 100644
index 000000000..932f1b1f1
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/himax,hx83121a.yaml
@@ -0,0 +1,87 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/himax,hx83121a.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Himax HX83121A based DSI display Panels
+
+maintainers:
+  - Pengyu Luo <mitltlatltl@gmail.com>
+
+description: |
+  The Himax HX83121A is a generic DSI Panel IC used to drive dsi
+  panels. Support video mode panels from China Star Optoelectronics
+  Technology (CSOT) and BOE Technology.
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - boe,ppc357db1-4
+          - csot,ppc357db1-4
+      - const: himax,hx83121a
+
+  reg:
+    maxItems: 1
+
+  reset-gpios:
+    maxItems: 1
+    description: phandle of gpio for reset line
+
+  avdd-supply:
+    description: analog positive supply for IC
+
+  avee-supply:
+    description: analog negative supply for IC
+
+  vddi-supply:
+    description: power supply for IC
+
+  backlight: true
+
+required:
+  - compatible
+  - reg
+  - vddi-supply
+  - reset-gpios
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    dsi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        panel@0 {
+            compatible = "csot,ppc357db1-4", "himax,hx83121a";
+            reg = <0>;
+
+            vddi-supply = <&vreg_l2b>;
+            reset-gpios = <&tlmm 38 GPIO_ACTIVE_LOW>;
+
+            ports {
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                port@0 {
+                    reg = <0>;
+                    panel_in_0: endpoint {
+                        remote-endpoint = <&dsi0_out>;
+                    };
+                };
+
+                port@1{
+                    reg = <1>;
+                    panel_in_1: endpoint {
+                        remote-endpoint = <&dsi1_out>;
+                    };
+                };
+            };
+        };
+    };
+
+...
-- 
2.53.0

On Tue, 03 Mar 2026 19:57:29 +0800, Pengyu Luo wrote:
> HX83121A is a driver IC used to drive MIPI-DSI panels. It is found
> in HUAWEI Matebook E Go series (Gaokun2/3) with BOE or CSOT panels.
> 
> Signed-off-by: Pengyu Luo <mitltlatltl@gmail.com>
> ---
>  .../display/panel/himax,hx83121a.yaml         | 87 +++++++++++++++++++
>  1 file changed, 87 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/display/panel/himax,hx83121a.yaml
> 

My bot found errors running 'make dt_binding_check' on your patch:

yamllint warnings/errors:

dtschema/dtc warnings/errors:
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/display/panel/himax,hx83121a.example.dtb: panel@0 (csot,ppc357db1-4): Unevaluated properties are not allowed ('ports' was unexpected)
	from schema $id: http://devicetree.org/schemas/display/panel/himax,hx83121a.yaml

doc reference errors (make refcheckdocs):

See https://patchwork.kernel.org/project/devicetree/patch/20260303115730.9580-2-mitltlatltl@gmail.com

The base for the series is generally the latest rc1. A different dependency
should be noted in *this* patch.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit after running the above command yourself. Note
that DT_SCHEMA_FILES can be set to your schema file to speed up checking
your schema. However, it must be unset to test all examples with your schema.