[PATCH 0/3] dt-bindings: display: ti,tpd12s015: convert, and fix what the conversion exposed

[PATCH 0/3] dt-bindings: display: ti,tpd12s015: convert, and fix what the conversion exposed

[Quchaosheng]

From: Chaosheng Qu <quchaosheng000406@163.com>

v4.  The three things Laurent pointed out on the v3 thread are addressed,
and the conversion is separated from the two devicetree fixes it turned
up.

  [1/3] converts ti,tpd12s015.txt to DT schema.  gpios is back to three
        entries: the two drivers obtain exactly three through
        devm_gpiod_get_index(), indices 0 to 2, and neither file mentions
        scl, sda or ddc.  v3 had raised maxItems to five only to keep
        dtbs_check quiet for omap5-igep0050.dts, which wrote a defect of
        the DT source into the binding.  That was backwards.

  [2/3] drops the two extra entries from omap5-igep0050.dts, which is
        where the defect belongs.  Nothing reads them: there is no
        pinctrl group for those lines and no other consumer in the tree.

  [3/3] drops the unit-address from the tpd12s015 endpoints on
        am5729-beagleboneai and am57xx-idk.  Those nodes carry a
        unit-address without a matching reg property.

Each of the two devicetree patches removes a warning that the bare
conversion leaves behind, so the three belong together:

  am5729-beagleboneai:  241 -> 237 dtbs_check warnings
  omap5-igep0050:       188 -> 186 dtbs_check warnings

with no new warnings in either file.

Assisted-by: LLM is on all three, which the v1 posting and v3 were
missing.

One thing I raised on the thread and should repeat here: Eduard Bostina
posted the same conversion on 2026-07-30,
<20260730092245.52034-1-egbostina@gmail.com>.  If his series is the one to
carry this, say so and I will drop mine.

Chaosheng Qu (3):
  dt-bindings: display: ti,tpd12s015: Convert to DT schema
  ARM: dts: ti/omap: drop the two unused gpios from the igep0050 hdmi
    encoder
  ARM: dts: ti/omap: drop unit-address from tpd12s015 endpoints

 .../bindings/display/ti/ti,tpd12s015.txt           |  44 ------
 .../bindings/display/ti/ti,tpd12s015.yaml          |  90 ++++++++++++
 arch/arm/boot/dts/ti/omap/am5729-beagleboneai.dts  |   4 +-
 arch/arm/boot/dts/ti/omap/am57xx-idk-common.dtsi   |   4 +-
 arch/arm/boot/dts/ti/omap/omap5-igep0050.dts       |   4 +-
 5 files changed, 94 insertions(+), 52 deletions(-)
-- 
2.43.0

[PATCH 1/3] dt-bindings: display: ti,tpd12s015: Convert to DT schema

[Quchaosheng]

From: Chaosheng Qu <quchaosheng000406@163.com>

Convert the TPD12S015 HDMI level shifter binding to DT schema.

The TI TPD12S015 is an HDMI companion chip that combines a level shifter
and ESD protection circuitry. Document the two ports it exposes between
the HDMI transmitter and the connector.

The tpd12s016 is software compatible with the tpd12s015 and is listed as
a fallback compatible by am57xx-idk-common.dtsi, so accept it as a
fallback of "ti,tpd12s015". The driver matches on "ti,tpd12s015" only, so
a board using the tpd12s016 must list both compatibles.

Assisted-by: LLM
Signed-off-by: Chaosheng Qu <quchaosheng000406@163.com>
---
 .../bindings/display/ti/ti,tpd12s015.txt      | 44 ---------
 .../bindings/display/ti/ti,tpd12s015.yaml     | 90 +++++++++++++++++++
 2 files changed, 90 insertions(+), 44 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/display/ti/ti,tpd12s015.txt
 create mode 100644 Documentation/devicetree/bindings/display/ti/ti,tpd12s015.yaml

diff --git a/Documentation/devicetree/bindings/display/ti/ti,tpd12s015.txt b/Documentation/devicetree/bindings/display/ti/ti,tpd12s015.txt
deleted file mode 100644
index 26e6d32e3f20..000000000000
--- a/Documentation/devicetree/bindings/display/ti/ti,tpd12s015.txt
+++ /dev/null
@@ -1,44 +0,0 @@
-TPD12S015 HDMI level shifter and ESD protection chip
-====================================================
-
-Required properties:
-- compatible: "ti,tpd12s015"
-
-Optional properties:
-- gpios: CT CP HPD, LS OE and HPD gpios
-
-Required nodes:
-- Video port 0 for HDMI input
-- Video port 1 for HDMI output
-
-Example
--------
-
-tpd12s015: encoder@1 {
-	compatible = "ti,tpd12s015";
-
-	gpios = <&gpio2 28 GPIO_ACTIVE_HIGH>,	/* 60, CT CP HPD */
-		<&gpio2 9 GPIO_ACTIVE_HIGH>,	/* 41, LS OE */
-		<&gpio2 31 GPIO_ACTIVE_HIGH>;	/* 63, HPD */
-
-	ports {
-		#address-cells = <1>;
-		#size-cells = <0>;
-
-		port@0 {
-			reg = <0>;
-
-			tpd12s015_in: endpoint@0 {
-				remote-endpoint = <&hdmi_out>;
-			};
-		};
-
-		port@1 {
-			reg = <1>;
-
-			tpd12s015_out: endpoint@0 {
-				remote-endpoint = <&hdmi_connector_in>;
-			};
-		};
-	};
-};
diff --git a/Documentation/devicetree/bindings/display/ti/ti,tpd12s015.yaml b/Documentation/devicetree/bindings/display/ti/ti,tpd12s015.yaml
new file mode 100644
index 000000000000..1927da3bd736
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/ti/ti,tpd12s015.yaml
@@ -0,0 +1,90 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/ti/ti,tpd12s015.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI TPD12S015 HDMI level shifter and ESD protection chip
+
+maintainers:
+  - Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
+
+description: |
+  The TPD12S015 is an HDMI companion chip that combines a level shifter and
+  ESD protection circuitry. It sits between an HDMI transmitter and the HDMI
+  connector, and provides control over the level shifter enable and the
+  hot-plug detect signals.
+
+properties:
+  compatible:
+    oneOf:
+      - const: ti,tpd12s015
+      - items:
+          - const: ti,tpd12s016
+          - const: ti,tpd12s015
+
+  gpios:
+    description:
+      The CT CP HPD, LS OE and HPD GPIOs, in that order. The first controls
+      the level shifter, the second enables the level shifter outputs and
+      the third reads the hot-plug detect line.
+    maxItems: 3
+
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+
+    properties:
+      port@0:
+        $ref: /schemas/graph.yaml#/$defs/port-base
+        unevaluatedProperties: false
+        description: HDMI input from the transmitter.
+
+      port@1:
+        $ref: /schemas/graph.yaml#/$defs/port-base
+        unevaluatedProperties: false
+        description: HDMI output to the connector.
+
+    required:
+      - port@0
+      - port@1
+
+required:
+  - compatible
+  - ports
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    encoder1 {
+        compatible = "ti,tpd12s015";
+
+        gpios = <&gpio2 28 GPIO_ACTIVE_HIGH>,    /* 60, CT CP HPD */
+                <&gpio2 9 GPIO_ACTIVE_HIGH>,    /* 41, LS OE */
+                <&gpio2 31 GPIO_ACTIVE_HIGH>;    /* 63, HPD */
+
+        ports {
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            port@0 {
+                reg = <0>;
+
+                tpd12s015_in: endpoint {
+                    remote-endpoint = <&hdmi_out>;
+                };
+            };
+
+            port@1 {
+                reg = <1>;
+
+                tpd12s015_out: endpoint {
+                    remote-endpoint = <&hdmi_connector_in>;
+                };
+            };
+        };
+    };
+
+...
-- 
2.43.0

Re: [PATCH 1/3] dt-bindings: display: ti,tpd12s015: Convert to DT schema

[Conor Dooley]

[-- Attachment #1: Type: text/plain, Size: 5671 bytes --]

On Fri, Oct 09, 2026 at 06:55:59PM +0800, Quchaosheng wrote:
> From: Chaosheng Qu <quchaosheng000406@163.com>
> 
> Convert the TPD12S015 HDMI level shifter binding to DT schema.
> 
> The TI TPD12S015 is an HDMI companion chip that combines a level shifter
> and ESD protection circuitry. Document the two ports it exposes between
> the HDMI transmitter and the connector.
> 
> The tpd12s016 is software compatible with the tpd12s015 and is listed as
> a fallback compatible by am57xx-idk-common.dtsi, so accept it as a
> fallback of "ti,tpd12s015". The driver matches on "ti,tpd12s015" only, so
> a board using the tpd12s016 must list both compatibles.
> 
> Assisted-by: LLM
> Signed-off-by: Chaosheng Qu <quchaosheng000406@163.com>

No idea if the sashiko reply is valid, because I have no clue if
providing a subset of the gpios is functional. Really this should have
multiple different gpios properties, but this binding is really old and
not worth changing IMO.
Acked-by: Conor Dooley <conor.dooley@microchip.com>
pw-bot: not-applicable

> ---
>  .../bindings/display/ti/ti,tpd12s015.txt      | 44 ---------
>  .../bindings/display/ti/ti,tpd12s015.yaml     | 90 +++++++++++++++++++
>  2 files changed, 90 insertions(+), 44 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/display/ti/ti,tpd12s015.txt
>  create mode 100644 Documentation/devicetree/bindings/display/ti/ti,tpd12s015.yaml
> 
> diff --git a/Documentation/devicetree/bindings/display/ti/ti,tpd12s015.txt b/Documentation/devicetree/bindings/display/ti/ti,tpd12s015.txt
> deleted file mode 100644
> index 26e6d32e3f20..000000000000
> --- a/Documentation/devicetree/bindings/display/ti/ti,tpd12s015.txt
> +++ /dev/null
> @@ -1,44 +0,0 @@
> -TPD12S015 HDMI level shifter and ESD protection chip
> -====================================================
> -
> -Required properties:
> -- compatible: "ti,tpd12s015"
> -
> -Optional properties:
> -- gpios: CT CP HPD, LS OE and HPD gpios
> -
> -Required nodes:
> -- Video port 0 for HDMI input
> -- Video port 1 for HDMI output
> -
> -Example
> --------
> -
> -tpd12s015: encoder@1 {
> -	compatible = "ti,tpd12s015";
> -
> -	gpios = <&gpio2 28 GPIO_ACTIVE_HIGH>,	/* 60, CT CP HPD */
> -		<&gpio2 9 GPIO_ACTIVE_HIGH>,	/* 41, LS OE */
> -		<&gpio2 31 GPIO_ACTIVE_HIGH>;	/* 63, HPD */
> -
> -	ports {
> -		#address-cells = <1>;
> -		#size-cells = <0>;
> -
> -		port@0 {
> -			reg = <0>;
> -
> -			tpd12s015_in: endpoint@0 {
> -				remote-endpoint = <&hdmi_out>;
> -			};
> -		};
> -
> -		port@1 {
> -			reg = <1>;
> -
> -			tpd12s015_out: endpoint@0 {
> -				remote-endpoint = <&hdmi_connector_in>;
> -			};
> -		};
> -	};
> -};
> diff --git a/Documentation/devicetree/bindings/display/ti/ti,tpd12s015.yaml b/Documentation/devicetree/bindings/display/ti/ti,tpd12s015.yaml
> new file mode 100644
> index 000000000000..1927da3bd736
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/ti/ti,tpd12s015.yaml
> @@ -0,0 +1,90 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/ti/ti,tpd12s015.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: TI TPD12S015 HDMI level shifter and ESD protection chip
> +
> +maintainers:
> +  - Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
> +
> +description: |
> +  The TPD12S015 is an HDMI companion chip that combines a level shifter and
> +  ESD protection circuitry. It sits between an HDMI transmitter and the HDMI
> +  connector, and provides control over the level shifter enable and the
> +  hot-plug detect signals.
> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - const: ti,tpd12s015
> +      - items:
> +          - const: ti,tpd12s016
> +          - const: ti,tpd12s015
> +
> +  gpios:
> +    description:
> +      The CT CP HPD, LS OE and HPD GPIOs, in that order. The first controls
> +      the level shifter, the second enables the level shifter outputs and
> +      the third reads the hot-plug detect line.
> +    maxItems: 3
> +
> +  ports:
> +    $ref: /schemas/graph.yaml#/properties/ports
> +
> +    properties:
> +      port@0:
> +        $ref: /schemas/graph.yaml#/$defs/port-base
> +        unevaluatedProperties: false
> +        description: HDMI input from the transmitter.
> +
> +      port@1:
> +        $ref: /schemas/graph.yaml#/$defs/port-base
> +        unevaluatedProperties: false
> +        description: HDMI output to the connector.
> +
> +    required:
> +      - port@0
> +      - port@1
> +
> +required:
> +  - compatible
> +  - ports
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/gpio/gpio.h>
> +
> +    encoder1 {
> +        compatible = "ti,tpd12s015";
> +
> +        gpios = <&gpio2 28 GPIO_ACTIVE_HIGH>,    /* 60, CT CP HPD */
> +                <&gpio2 9 GPIO_ACTIVE_HIGH>,    /* 41, LS OE */
> +                <&gpio2 31 GPIO_ACTIVE_HIGH>;    /* 63, HPD */
> +
> +        ports {
> +            #address-cells = <1>;
> +            #size-cells = <0>;
> +
> +            port@0 {
> +                reg = <0>;
> +
> +                tpd12s015_in: endpoint {
> +                    remote-endpoint = <&hdmi_out>;
> +                };
> +            };
> +
> +            port@1 {
> +                reg = <1>;
> +
> +                tpd12s015_out: endpoint {
> +                    remote-endpoint = <&hdmi_connector_in>;
> +                };
> +            };
> +        };
> +    };
> +
> +...
> -- 
> 2.43.0
> 

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Re: [PATCH 1/3] dt-bindings: display: ti,tpd12s015: Convert to DT schema

[Laurent Pinchart]

On Fri, Oct 09, 2026 at 03:25:49PM +0100, Conor Dooley wrote:
> On Fri, Oct 09, 2026 at 06:55:59PM +0800, Quchaosheng wrote:
> > From: Chaosheng Qu <quchaosheng000406@163.com>
> > 
> > Convert the TPD12S015 HDMI level shifter binding to DT schema.
> > 
> > The TI TPD12S015 is an HDMI companion chip that combines a level shifter
> > and ESD protection circuitry. Document the two ports it exposes between
> > the HDMI transmitter and the connector.
> > 
> > The tpd12s016 is software compatible with the tpd12s015 and is listed as
> > a fallback compatible by am57xx-idk-common.dtsi, so accept it as a
> > fallback of "ti,tpd12s015". The driver matches on "ti,tpd12s015" only, so
> > a board using the tpd12s016 must list both compatibles.
> > 
> > Assisted-by: LLM
> > Signed-off-by: Chaosheng Qu <quchaosheng000406@163.com>
> 
> No idea if the sashiko reply is valid, because I have no clue if
> providing a subset of the gpios is functional. Really this should have
> multiple different gpios properties,

Definitely.

> but this binding is really old and
> not worth changing IMO.
> Acked-by: Conor Dooley <conor.dooley@microchip.com>
> pw-bot: not-applicable

I'm getting annoyed be the LLM-assisted individual conversions. Can we
start requiring people who convert text bindings to YAML to at least
handle whole groups in one go ? If they're going to do a bad job, I'd
rather have to review it once only.

> > ---
> >  .../bindings/display/ti/ti,tpd12s015.txt      | 44 ---------
> >  .../bindings/display/ti/ti,tpd12s015.yaml     | 90 +++++++++++++++++++
> >  2 files changed, 90 insertions(+), 44 deletions(-)
> >  delete mode 100644 Documentation/devicetree/bindings/display/ti/ti,tpd12s015.txt
> >  create mode 100644 Documentation/devicetree/bindings/display/ti/ti,tpd12s015.yaml
> > 
> > diff --git a/Documentation/devicetree/bindings/display/ti/ti,tpd12s015.txt b/Documentation/devicetree/bindings/display/ti/ti,tpd12s015.txt
> > deleted file mode 100644
> > index 26e6d32e3f20..000000000000
> > --- a/Documentation/devicetree/bindings/display/ti/ti,tpd12s015.txt
> > +++ /dev/null
> > @@ -1,44 +0,0 @@
> > -TPD12S015 HDMI level shifter and ESD protection chip
> > -====================================================
> > -
> > -Required properties:
> > -- compatible: "ti,tpd12s015"
> > -
> > -Optional properties:
> > -- gpios: CT CP HPD, LS OE and HPD gpios
> > -
> > -Required nodes:
> > -- Video port 0 for HDMI input
> > -- Video port 1 for HDMI output
> > -
> > -Example
> > --------
> > -
> > -tpd12s015: encoder@1 {
> > -	compatible = "ti,tpd12s015";
> > -
> > -	gpios = <&gpio2 28 GPIO_ACTIVE_HIGH>,	/* 60, CT CP HPD */
> > -		<&gpio2 9 GPIO_ACTIVE_HIGH>,	/* 41, LS OE */
> > -		<&gpio2 31 GPIO_ACTIVE_HIGH>;	/* 63, HPD */
> > -
> > -	ports {
> > -		#address-cells = <1>;
> > -		#size-cells = <0>;
> > -
> > -		port@0 {
> > -			reg = <0>;
> > -
> > -			tpd12s015_in: endpoint@0 {
> > -				remote-endpoint = <&hdmi_out>;
> > -			};
> > -		};
> > -
> > -		port@1 {
> > -			reg = <1>;
> > -
> > -			tpd12s015_out: endpoint@0 {
> > -				remote-endpoint = <&hdmi_connector_in>;
> > -			};
> > -		};
> > -	};
> > -};
> > diff --git a/Documentation/devicetree/bindings/display/ti/ti,tpd12s015.yaml b/Documentation/devicetree/bindings/display/ti/ti,tpd12s015.yaml
> > new file mode 100644
> > index 000000000000..1927da3bd736
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/display/ti/ti,tpd12s015.yaml
> > @@ -0,0 +1,90 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/display/ti/ti,tpd12s015.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: TI TPD12S015 HDMI level shifter and ESD protection chip
> > +
> > +maintainers:
> > +  - Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
> > +
> > +description: |
> > +  The TPD12S015 is an HDMI companion chip that combines a level shifter and
> > +  ESD protection circuitry. It sits between an HDMI transmitter and the HDMI
> > +  connector, and provides control over the level shifter enable and the
> > +  hot-plug detect signals.
> > +
> > +properties:
> > +  compatible:
> > +    oneOf:
> > +      - const: ti,tpd12s015
> > +      - items:
> > +          - const: ti,tpd12s016
> > +          - const: ti,tpd12s015
> > +
> > +  gpios:
> > +    description:
> > +      The CT CP HPD, LS OE and HPD GPIOs, in that order. The first controls
> > +      the level shifter, the second enables the level shifter outputs and
> > +      the third reads the hot-plug detect line.
> > +    maxItems: 3
> > +
> > +  ports:
> > +    $ref: /schemas/graph.yaml#/properties/ports
> > +
> > +    properties:
> > +      port@0:
> > +        $ref: /schemas/graph.yaml#/$defs/port-base
> > +        unevaluatedProperties: false
> > +        description: HDMI input from the transmitter.
> > +
> > +      port@1:
> > +        $ref: /schemas/graph.yaml#/$defs/port-base
> > +        unevaluatedProperties: false
> > +        description: HDMI output to the connector.
> > +
> > +    required:
> > +      - port@0
> > +      - port@1
> > +
> > +required:
> > +  - compatible
> > +  - ports
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > +  - |
> > +    #include <dt-bindings/gpio/gpio.h>
> > +
> > +    encoder1 {
> > +        compatible = "ti,tpd12s015";
> > +
> > +        gpios = <&gpio2 28 GPIO_ACTIVE_HIGH>,    /* 60, CT CP HPD */
> > +                <&gpio2 9 GPIO_ACTIVE_HIGH>,    /* 41, LS OE */
> > +                <&gpio2 31 GPIO_ACTIVE_HIGH>;    /* 63, HPD */
> > +
> > +        ports {
> > +            #address-cells = <1>;
> > +            #size-cells = <0>;
> > +
> > +            port@0 {
> > +                reg = <0>;
> > +
> > +                tpd12s015_in: endpoint {
> > +                    remote-endpoint = <&hdmi_out>;
> > +                };
> > +            };
> > +
> > +            port@1 {
> > +                reg = <1>;
> > +
> > +                tpd12s015_out: endpoint {
> > +                    remote-endpoint = <&hdmi_connector_in>;
> > +                };
> > +            };
> > +        };
> > +    };
> > +
> > +...

-- 
Regards,

Laurent Pinchart

Re: [PATCH 1/3] dt-bindings: display: ti,tpd12s015: Convert to DT schema

[Conor Dooley]

[-- Attachment #1: Type: text/plain, Size: 1969 bytes --]

On Fri, Oct 09, 2026 at 04:44:34PM +0200, Laurent Pinchart wrote:
> On Fri, Oct 09, 2026 at 03:25:49PM +0100, Conor Dooley wrote:
> > On Fri, Oct 09, 2026 at 06:55:59PM +0800, Quchaosheng wrote:
> > > From: Chaosheng Qu <quchaosheng000406@163.com>
> > > 
> > > Convert the TPD12S015 HDMI level shifter binding to DT schema.
> > > 
> > > The TI TPD12S015 is an HDMI companion chip that combines a level shifter
> > > and ESD protection circuitry. Document the two ports it exposes between
> > > the HDMI transmitter and the connector.
> > > 
> > > The tpd12s016 is software compatible with the tpd12s015 and is listed as
> > > a fallback compatible by am57xx-idk-common.dtsi, so accept it as a
> > > fallback of "ti,tpd12s015". The driver matches on "ti,tpd12s015" only, so
> > > a board using the tpd12s016 must list both compatibles.
> > > 
> > > Assisted-by: LLM
> > > Signed-off-by: Chaosheng Qu <quchaosheng000406@163.com>
> > 
> > No idea if the sashiko reply is valid, because I have no clue if
> > providing a subset of the gpios is functional. Really this should have
> > multiple different gpios properties,
> 
> Definitely.
> 
> > but this binding is really old and
> > not worth changing IMO.
> > Acked-by: Conor Dooley <conor.dooley@microchip.com>
> > pw-bot: not-applicable
> 
> I'm getting annoyed be the LLM-assisted individual conversions. Can we
> start requiring people who convert text bindings to YAML to at least
> handle whole groups in one go ? If they're going to do a bad job, I'd
> rather have to review it once only.

Or do one, and take the learnings into all the remaining patches - but
with LLM conversions I don't think there's really much learning going on
at all.

I guess bunching them is fine, provided it is for one subsystem. I
definitely don't want to see a set of 15 patches across 9 subsystems,
at least with one subsystem it's likely to be the same common problems
across the bunch.


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Re: [PATCH 1/3] dt-bindings: display: ti,tpd12s015: Convert to DT schema

[Rob Herring]

On Fri, Oct 09, 2026 at 04:42:01PM +0100, Conor Dooley wrote:
> On Fri, Oct 09, 2026 at 04:44:34PM +0200, Laurent Pinchart wrote:
> > On Fri, Oct 09, 2026 at 03:25:49PM +0100, Conor Dooley wrote:
> > > On Fri, Oct 09, 2026 at 06:55:59PM +0800, Quchaosheng wrote:
> > > > From: Chaosheng Qu <quchaosheng000406@163.com>
> > > > 
> > > > Convert the TPD12S015 HDMI level shifter binding to DT schema.
> > > > 
> > > > The TI TPD12S015 is an HDMI companion chip that combines a level shifter
> > > > and ESD protection circuitry. Document the two ports it exposes between
> > > > the HDMI transmitter and the connector.
> > > > 
> > > > The tpd12s016 is software compatible with the tpd12s015 and is listed as
> > > > a fallback compatible by am57xx-idk-common.dtsi, so accept it as a
> > > > fallback of "ti,tpd12s015". The driver matches on "ti,tpd12s015" only, so
> > > > a board using the tpd12s016 must list both compatibles.
> > > > 
> > > > Assisted-by: LLM
> > > > Signed-off-by: Chaosheng Qu <quchaosheng000406@163.com>
> > > 
> > > No idea if the sashiko reply is valid, because I have no clue if
> > > providing a subset of the gpios is functional. Really this should have
> > > multiple different gpios properties,

The minItems one is not valid. sashiko struggles on our quirks against 
normal json-schema. Generally, if either minItems or maxItems is not 
specified, we make them equal. I think I documented that, so we need to 
get sashiko to read it...

> > 
> > Definitely.
> > 
> > > but this binding is really old and
> > > not worth changing IMO.
> > > Acked-by: Conor Dooley <conor.dooley@microchip.com>
> > > pw-bot: not-applicable
> > 
> > I'm getting annoyed be the LLM-assisted individual conversions. Can we
> > start requiring people who convert text bindings to YAML to at least
> > handle whole groups in one go ? If they're going to do a bad job, I'd
> > rather have to review it once only.

I have a branch of ~600 questionable patches. :) It does make arm64 
warning free (and some of the warning fixes are valid).

What's left is really stuff that's old, not getting new platforms and no 
one cares about. I don't think we need perfection. We should probably 
just ignore sashiko.

> 
> Or do one, and take the learnings into all the remaining patches - but
> with LLM conversions I don't think there's really much learning going on
> at all.
> 
> I guess bunching them is fine, provided it is for one subsystem. I
> definitely don't want to see a set of 15 patches across 9 subsystems,
> at least with one subsystem it's likely to be the same common problems
> across the bunch.

I've tried expressing my preferences in priority, but it hasn't worked. 
It was mainly GSoC or other programs, but now it's?

My priority is:

- Fix arm64 warnings
- Fix arm warnings
- Convert subsystem bindings
- Fix other $arch warnings (no one cares AFAICT)

We're actually pretty close to arm64 being warning free. krzk's LPC 
slides inflate the numbers as N boards for a SoC give N copies of 
warnings. next is currently sitting at 218 warnings in my deduped count. 
About half of those are HiSilicon and Mediatek. The rest of the 
platforms (by subdir) are around ~20 or less.

arm32 is still a long way off. The recent platform removals should help 
though.

Rob

Re: [PATCH 1/3] dt-bindings: display: ti,tpd12s015: Convert to DT schema

[Rob Herring]

On Fri, Oct 09, 2026 at 06:55:59PM +0800, Quchaosheng wrote:
> From: Chaosheng Qu <quchaosheng000406@163.com>
> 
> Convert the TPD12S015 HDMI level shifter binding to DT schema.
> 
> The TI TPD12S015 is an HDMI companion chip that combines a level shifter
> and ESD protection circuitry. Document the two ports it exposes between
> the HDMI transmitter and the connector.
> 
> The tpd12s016 is software compatible with the tpd12s015 and is listed as
> a fallback compatible by am57xx-idk-common.dtsi, so accept it as a
> fallback of "ti,tpd12s015". The driver matches on "ti,tpd12s015" only, so
> a board using the tpd12s016 must list both compatibles.
> 
> Assisted-by: LLM
> Signed-off-by: Chaosheng Qu <quchaosheng000406@163.com>
> ---
>  .../bindings/display/ti/ti,tpd12s015.txt      | 44 ---------
>  .../bindings/display/ti/ti,tpd12s015.yaml     | 90 +++++++++++++++++++
>  2 files changed, 90 insertions(+), 44 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/display/ti/ti,tpd12s015.txt
>  create mode 100644 Documentation/devicetree/bindings/display/ti/ti,tpd12s015.yaml
> 
> diff --git a/Documentation/devicetree/bindings/display/ti/ti,tpd12s015.txt b/Documentation/devicetree/bindings/display/ti/ti,tpd12s015.txt
> deleted file mode 100644
> index 26e6d32e3f20..000000000000
> --- a/Documentation/devicetree/bindings/display/ti/ti,tpd12s015.txt
> +++ /dev/null
> @@ -1,44 +0,0 @@
> -TPD12S015 HDMI level shifter and ESD protection chip
> -====================================================
> -
> -Required properties:
> -- compatible: "ti,tpd12s015"
> -
> -Optional properties:
> -- gpios: CT CP HPD, LS OE and HPD gpios
> -
> -Required nodes:
> -- Video port 0 for HDMI input
> -- Video port 1 for HDMI output
> -
> -Example
> --------
> -
> -tpd12s015: encoder@1 {
> -	compatible = "ti,tpd12s015";
> -
> -	gpios = <&gpio2 28 GPIO_ACTIVE_HIGH>,	/* 60, CT CP HPD */
> -		<&gpio2 9 GPIO_ACTIVE_HIGH>,	/* 41, LS OE */
> -		<&gpio2 31 GPIO_ACTIVE_HIGH>;	/* 63, HPD */
> -
> -	ports {
> -		#address-cells = <1>;
> -		#size-cells = <0>;
> -
> -		port@0 {
> -			reg = <0>;
> -
> -			tpd12s015_in: endpoint@0 {
> -				remote-endpoint = <&hdmi_out>;
> -			};
> -		};
> -
> -		port@1 {
> -			reg = <1>;
> -
> -			tpd12s015_out: endpoint@0 {
> -				remote-endpoint = <&hdmi_connector_in>;
> -			};
> -		};
> -	};
> -};
> diff --git a/Documentation/devicetree/bindings/display/ti/ti,tpd12s015.yaml b/Documentation/devicetree/bindings/display/ti/ti,tpd12s015.yaml
> new file mode 100644
> index 000000000000..1927da3bd736
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/ti/ti,tpd12s015.yaml
> @@ -0,0 +1,90 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/ti/ti,tpd12s015.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: TI TPD12S015 HDMI level shifter and ESD protection chip
> +
> +maintainers:
> +  - Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
> +
> +description: |

Don't need '|'.

> +  The TPD12S015 is an HDMI companion chip that combines a level shifter and
> +  ESD protection circuitry. It sits between an HDMI transmitter and the HDMI
> +  connector, and provides control over the level shifter enable and the
> +  hot-plug detect signals.
> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - const: ti,tpd12s015
> +      - items:
> +          - const: ti,tpd12s016
> +          - const: ti,tpd12s015
> +
> +  gpios:
> +    description:
> +      The CT CP HPD, LS OE and HPD GPIOs, in that order. The first controls
> +      the level shifter, the second enables the level shifter outputs and
> +      the third reads the hot-plug detect line.
> +    maxItems: 3

Use this form instead:

items:
  - description: ...
  - description: ...
  - description: ...
 
> +
> +  ports:
> +    $ref: /schemas/graph.yaml#/properties/ports
> +
> +    properties:
> +      port@0:
> +        $ref: /schemas/graph.yaml#/$defs/port-base
> +        unevaluatedProperties: false

No extra properties, so use:

$ref: /schemas/graph.yaml#/properties/port

(and no need for unevaluatedProperties)

> +        description: HDMI input from the transmitter.
> +
> +      port@1:
> +        $ref: /schemas/graph.yaml#/$defs/port-base
> +        unevaluatedProperties: false
> +        description: HDMI output to the connector.

Same here.

Rob

[PATCH 2/3] ARM: dts: ti/omap: drop the two unused gpios from the igep0050 hdmi encoder

[Quchaosheng]

From: Chaosheng Qu <quchaosheng000406@163.com>

omap5-igep0050.dts lists five GPIOs for the tpd12s015 encoder: the three
the driver asks for, plus two more that the comment names "SCL" and
"SDA".

Neither driver reads them. ti-tpd12s015.c and encoder-tpd12s015.c both
obtain exactly three GPIOs through devm_gpiod_get_index(), indices 0 to
2, and neither file mentions scl, sda or ddc anywhere. The text binding
that the schema replaces said the same thing: "gpios: CT CP HPD, LS OE
and HPD gpios". There is no pinctrl group for the two extra lines and
nothing else in the tree consumes them.

Drop them so the node describes the three signals the hardware is wired
to through this binding.

Assisted-by: LLM
Signed-off-by: Chaosheng Qu <quchaosheng000406@163.com>
---
 arch/arm/boot/dts/ti/omap/omap5-igep0050.dts | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/arch/arm/boot/dts/ti/omap/omap5-igep0050.dts b/arch/arm/boot/dts/ti/omap/omap5-igep0050.dts
index 0368e32f67e7..8e8325936cda 100644
--- a/arch/arm/boot/dts/ti/omap/omap5-igep0050.dts
+++ b/arch/arm/boot/dts/ti/omap/omap5-igep0050.dts
@@ -102,9 +102,7 @@ OMAP5_IOPAD(0x086, PIN_INPUT | MUX_MODE6)	/* gpio4_118 */
 &tpd12s015 {
 	gpios = <&tca6416 11 0>,	/* TCA6416 P01, CT_CP_HDP */
 		<&tca6416 12 0>,	/* TCA6416 P00, LS_OE*/
-		<&gpio7 1 0>,		/* 193, HPD */
-		<&gpio7 2 0>,		/* 194, SCL */
-		<&gpio7 3 0>;		/* 195, SDA */
+		<&gpio7 1 0>;		/* 193, HPD */
 };
 
 &twl6040 {
-- 
2.43.0

[PATCH 3/3] ARM: dts: ti/omap: drop unit-address from tpd12s015 endpoints

[Quchaosheng]

From: Chaosheng Qu <quchaosheng000406@163.com>

The endpoint nodes of the tpd12s015 encoder on the am5729-beagleboneai
and the am57xx-idk carry a unit-address without a matching reg property,
which the device tree specification does not allow.

Drop the unit-address so the nodes are named "endpoint".

No functional change.

Assisted-by: LLM
Signed-off-by: Chaosheng Qu <quchaosheng000406@163.com>
---
 arch/arm/boot/dts/ti/omap/am5729-beagleboneai.dts | 4 ++--
 arch/arm/boot/dts/ti/omap/am57xx-idk-common.dtsi  | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/ti/omap/am5729-beagleboneai.dts b/arch/arm/boot/dts/ti/omap/am5729-beagleboneai.dts
index 76bfb364777e..f40017a0e414 100644
--- a/arch/arm/boot/dts/ti/omap/am5729-beagleboneai.dts
+++ b/arch/arm/boot/dts/ti/omap/am5729-beagleboneai.dts
@@ -168,7 +168,7 @@ ports {
 			port@0 {
 				reg = <0x0>;
 
-				hdmi_encoder_in: endpoint@0 {
+				hdmi_encoder_in: endpoint {
 					remote-endpoint = <&hdmi_out>;
 				};
 			};
@@ -176,7 +176,7 @@ hdmi_encoder_in: endpoint@0 {
 			port@1 {
 				reg = <0x1>;
 
-				hdmi_encoder_out: endpoint@0 {
+				hdmi_encoder_out: endpoint {
 					remote-endpoint = <&hdmi_connector_in>;
 				};
 			};
diff --git a/arch/arm/boot/dts/ti/omap/am57xx-idk-common.dtsi b/arch/arm/boot/dts/ti/omap/am57xx-idk-common.dtsi
index 5eccff3bb4b6..4e8a5820b05c 100644
--- a/arch/arm/boot/dts/ti/omap/am57xx-idk-common.dtsi
+++ b/arch/arm/boot/dts/ti/omap/am57xx-idk-common.dtsi
@@ -135,7 +135,7 @@ ports {
 			port@0 {
 				reg = <0>;
 
-				tpd12s015_in: endpoint@0 {
+				tpd12s015_in: endpoint {
 					remote-endpoint = <&hdmi_out>;
 				};
 			};
@@ -143,7 +143,7 @@ tpd12s015_in: endpoint@0 {
 			port@1 {
 				reg = <1>;
 
-				tpd12s015_out: endpoint@0 {
+				tpd12s015_out: endpoint {
 					remote-endpoint = <&hdmi_connector_in>;
 				};
 			};
-- 
2.43.0

Re: [PATCH 0/3] dt-bindings: display: ti,tpd12s015: convert, and fix what the conversion exposed

[Laurent Pinchart]

This is the fourth version of this series that you send within 10
minutes, without any version number in the subject line. Please stop
flooding reviewers.

On Fri, Oct 09, 2026 at 06:55:58PM +0800, Quchaosheng wrote:
> From: Chaosheng Qu <quchaosheng000406@163.com>
> 
> v4.  The three things Laurent pointed out on the v3 thread are addressed,
> and the conversion is separated from the two devicetree fixes it turned
> up.
> 
>   [1/3] converts ti,tpd12s015.txt to DT schema.  gpios is back to three
>         entries: the two drivers obtain exactly three through
>         devm_gpiod_get_index(), indices 0 to 2, and neither file mentions
>         scl, sda or ddc.  v3 had raised maxItems to five only to keep
>         dtbs_check quiet for omap5-igep0050.dts, which wrote a defect of
>         the DT source into the binding.  That was backwards.
> 
>   [2/3] drops the two extra entries from omap5-igep0050.dts, which is
>         where the defect belongs.  Nothing reads them: there is no
>         pinctrl group for those lines and no other consumer in the tree.
> 
>   [3/3] drops the unit-address from the tpd12s015 endpoints on
>         am5729-beagleboneai and am57xx-idk.  Those nodes carry a
>         unit-address without a matching reg property.
> 
> Each of the two devicetree patches removes a warning that the bare
> conversion leaves behind, so the three belong together:
> 
>   am5729-beagleboneai:  241 -> 237 dtbs_check warnings
>   omap5-igep0050:       188 -> 186 dtbs_check warnings
> 
> with no new warnings in either file.
> 
> Assisted-by: LLM is on all three, which the v1 posting and v3 were
> missing.
> 
> One thing I raised on the thread and should repeat here: Eduard Bostina
> posted the same conversion on 2026-07-30,
> <20260730092245.52034-1-egbostina@gmail.com>.  If his series is the one to
> carry this, say so and I will drop mine.
> 
> Chaosheng Qu (3):
>   dt-bindings: display: ti,tpd12s015: Convert to DT schema
>   ARM: dts: ti/omap: drop the two unused gpios from the igep0050 hdmi
>     encoder
>   ARM: dts: ti/omap: drop unit-address from tpd12s015 endpoints
> 
>  .../bindings/display/ti/ti,tpd12s015.txt           |  44 ------
>  .../bindings/display/ti/ti,tpd12s015.yaml          |  90 ++++++++++++
>  arch/arm/boot/dts/ti/omap/am5729-beagleboneai.dts  |   4 +-
>  arch/arm/boot/dts/ti/omap/am57xx-idk-common.dtsi   |   4 +-
>  arch/arm/boot/dts/ti/omap/omap5-igep0050.dts       |   4 +-
>  5 files changed, 94 insertions(+), 52 deletions(-)

-- 
Regards,

Laurent Pinchart

[PATCH 0/3] dt-bindings: display: ti,tpd12s015: convert, and fix what the conversion exposed

[Quchaosheng]

From: Chaosheng Qu <quchaosheng000406@163.com>

v4.  The three things Laurent pointed out on the v3 thread are addressed,
and the conversion is separated from the two devicetree fixes it turned
up.

  [1/3] converts ti,tpd12s015.txt to DT schema.  gpios is back to three
        entries: the two drivers obtain exactly three through
        devm_gpiod_get_index(), indices 0 to 2, and neither file mentions
        scl, sda or ddc.  v3 had raised maxItems to five only to keep
        dtbs_check quiet for omap5-igep0050.dts, which wrote a defect of
        the DT source into the binding.  That was backwards.

  [2/3] drops the two extra entries from omap5-igep0050.dts, which is
        where the defect belongs.  Nothing reads them: there is no
        pinctrl group for those lines and no other consumer in the tree.

  [3/3] drops the unit-address from the tpd12s015 endpoints on
        am5729-beagleboneai and am57xx-idk.  Those nodes carry a
        unit-address without a matching reg property.

Each of the two devicetree patches removes a warning that the bare
conversion leaves behind, so the three belong together:

  am5729-beagleboneai:  241 -> 237 dtbs_check warnings
  omap5-igep0050:       188 -> 186 dtbs_check warnings

with no new warnings in either file.

Assisted-by: LLM is on all three, which the v1 posting and v3 were
missing.

One thing I raised on the thread and should repeat here: Eduard Bostina
posted the same conversion on 2026-07-30,
<20260730092245.52034-1-egbostina@gmail.com>.  If his series is the one to
carry this, say so and I will drop mine.

Chaosheng Qu (3):
  dt-bindings: display: ti,tpd12s015: Convert to DT schema
  ARM: dts: ti/omap: drop the two unused gpios from the igep0050 hdmi
    encoder
  ARM: dts: ti/omap: drop unit-address from tpd12s015 endpoints

 .../bindings/display/ti/ti,tpd12s015.txt           |  44 ------
 .../bindings/display/ti/ti,tpd12s015.yaml          |  90 ++++++++++++
 arch/arm/boot/dts/ti/omap/am5729-beagleboneai.dts  |   4 +-
 arch/arm/boot/dts/ti/omap/am57xx-idk-common.dtsi   |   4 +-
 arch/arm/boot/dts/ti/omap/omap5-igep0050.dts       |   4 +-
 5 files changed, 94 insertions(+), 52 deletions(-)
-- 
2.43.0

[PATCH 1/3] dt-bindings: display: ti,tpd12s015: Convert to DT schema

[Quchaosheng]

From: Chaosheng Qu <quchaosheng000406@163.com>

Convert the TPD12S015 HDMI level shifter binding to DT schema.

The TI TPD12S015 is an HDMI companion chip that combines a level shifter
and ESD protection circuitry. Document the two ports it exposes between
the HDMI transmitter and the connector.

The tpd12s016 is software compatible with the tpd12s015 and is listed as
a fallback compatible by am57xx-idk-common.dtsi, so accept it as a
fallback of "ti,tpd12s015". The driver matches on "ti,tpd12s015" only, so
a board using the tpd12s016 must list both compatibles.

Assisted-by: LLM
Signed-off-by: Chaosheng Qu <quchaosheng000406@163.com>
---
 .../bindings/display/ti/ti,tpd12s015.txt      | 44 ---------
 .../bindings/display/ti/ti,tpd12s015.yaml     | 90 +++++++++++++++++++
 2 files changed, 90 insertions(+), 44 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/display/ti/ti,tpd12s015.txt
 create mode 100644 Documentation/devicetree/bindings/display/ti/ti,tpd12s015.yaml

diff --git a/Documentation/devicetree/bindings/display/ti/ti,tpd12s015.txt b/Documentation/devicetree/bindings/display/ti/ti,tpd12s015.txt
deleted file mode 100644
index 26e6d32e3f20..000000000000
--- a/Documentation/devicetree/bindings/display/ti/ti,tpd12s015.txt
+++ /dev/null
@@ -1,44 +0,0 @@
-TPD12S015 HDMI level shifter and ESD protection chip
-====================================================
-
-Required properties:
-- compatible: "ti,tpd12s015"
-
-Optional properties:
-- gpios: CT CP HPD, LS OE and HPD gpios
-
-Required nodes:
-- Video port 0 for HDMI input
-- Video port 1 for HDMI output
-
-Example
--------
-
-tpd12s015: encoder@1 {
-	compatible = "ti,tpd12s015";
-
-	gpios = <&gpio2 28 GPIO_ACTIVE_HIGH>,	/* 60, CT CP HPD */
-		<&gpio2 9 GPIO_ACTIVE_HIGH>,	/* 41, LS OE */
-		<&gpio2 31 GPIO_ACTIVE_HIGH>;	/* 63, HPD */
-
-	ports {
-		#address-cells = <1>;
-		#size-cells = <0>;
-
-		port@0 {
-			reg = <0>;
-
-			tpd12s015_in: endpoint@0 {
-				remote-endpoint = <&hdmi_out>;
-			};
-		};
-
-		port@1 {
-			reg = <1>;
-
-			tpd12s015_out: endpoint@0 {
-				remote-endpoint = <&hdmi_connector_in>;
-			};
-		};
-	};
-};
diff --git a/Documentation/devicetree/bindings/display/ti/ti,tpd12s015.yaml b/Documentation/devicetree/bindings/display/ti/ti,tpd12s015.yaml
new file mode 100644
index 000000000000..1927da3bd736
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/ti/ti,tpd12s015.yaml
@@ -0,0 +1,90 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/ti/ti,tpd12s015.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI TPD12S015 HDMI level shifter and ESD protection chip
+
+maintainers:
+  - Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
+
+description: |
+  The TPD12S015 is an HDMI companion chip that combines a level shifter and
+  ESD protection circuitry. It sits between an HDMI transmitter and the HDMI
+  connector, and provides control over the level shifter enable and the
+  hot-plug detect signals.
+
+properties:
+  compatible:
+    oneOf:
+      - const: ti,tpd12s015
+      - items:
+          - const: ti,tpd12s016
+          - const: ti,tpd12s015
+
+  gpios:
+    description:
+      The CT CP HPD, LS OE and HPD GPIOs, in that order. The first controls
+      the level shifter, the second enables the level shifter outputs and
+      the third reads the hot-plug detect line.
+    maxItems: 3
+
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+
+    properties:
+      port@0:
+        $ref: /schemas/graph.yaml#/$defs/port-base
+        unevaluatedProperties: false
+        description: HDMI input from the transmitter.
+
+      port@1:
+        $ref: /schemas/graph.yaml#/$defs/port-base
+        unevaluatedProperties: false
+        description: HDMI output to the connector.
+
+    required:
+      - port@0
+      - port@1
+
+required:
+  - compatible
+  - ports
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    encoder1 {
+        compatible = "ti,tpd12s015";
+
+        gpios = <&gpio2 28 GPIO_ACTIVE_HIGH>,    /* 60, CT CP HPD */
+                <&gpio2 9 GPIO_ACTIVE_HIGH>,    /* 41, LS OE */
+                <&gpio2 31 GPIO_ACTIVE_HIGH>;    /* 63, HPD */
+
+        ports {
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            port@0 {
+                reg = <0>;
+
+                tpd12s015_in: endpoint {
+                    remote-endpoint = <&hdmi_out>;
+                };
+            };
+
+            port@1 {
+                reg = <1>;
+
+                tpd12s015_out: endpoint {
+                    remote-endpoint = <&hdmi_connector_in>;
+                };
+            };
+        };
+    };
+
+...
-- 
2.43.0

[PATCH 0/3] dt-bindings: display: ti,tpd12s015: convert, and fix what the conversion exposed

[Quchaosheng]

From: Chaosheng Qu <quchaosheng000406@163.com>

v4.  The three things Laurent pointed out on the v3 thread are addressed,
and the conversion is separated from the two devicetree fixes it turned
up.

  [1/3] converts ti,tpd12s015.txt to DT schema.  gpios is back to three
        entries: the two drivers obtain exactly three through
        devm_gpiod_get_index(), indices 0 to 2, and neither file mentions
        scl, sda or ddc.  v3 had raised maxItems to five only to keep
        dtbs_check quiet for omap5-igep0050.dts, which wrote a defect of
        the DT source into the binding.  That was backwards.

  [2/3] drops the two extra entries from omap5-igep0050.dts, which is
        where the defect belongs.  Nothing reads them: there is no
        pinctrl group for those lines and no other consumer in the tree.

  [3/3] drops the unit-address from the tpd12s015 endpoints on
        am5729-beagleboneai and am57xx-idk.  Those nodes carry a
        unit-address without a matching reg property.

Each of the two devicetree patches removes a warning that the bare
conversion leaves behind, so the three belong together:

  am5729-beagleboneai:  241 -> 237 dtbs_check warnings
  omap5-igep0050:       188 -> 186 dtbs_check warnings

with no new warnings in either file.

Assisted-by: LLM is on all three, which the v1 posting and v3 were
missing.

One thing I raised on the thread and should repeat here: Eduard Bostina
posted the same conversion on 2026-07-30,
<20260730092245.52034-1-egbostina@gmail.com>.  If his series is the one to
carry this, say so and I will drop mine.

Chaosheng Qu (3):
  dt-bindings: display: ti,tpd12s015: Convert to DT schema
  ARM: dts: ti/omap: drop the two unused gpios from the igep0050 hdmi
    encoder
  ARM: dts: ti/omap: drop unit-address from tpd12s015 endpoints

 .../bindings/display/ti/ti,tpd12s015.txt           |  44 ------
 .../bindings/display/ti/ti,tpd12s015.yaml          |  90 ++++++++++++
 arch/arm/boot/dts/ti/omap/am5729-beagleboneai.dts  |   4 +-
 arch/arm/boot/dts/ti/omap/am57xx-idk-common.dtsi   |   4 +-
 arch/arm/boot/dts/ti/omap/omap5-igep0050.dts       |   4 +-
 5 files changed, 94 insertions(+), 52 deletions(-)
-- 
2.43.0

[PATCH 1/3] dt-bindings: display: ti,tpd12s015: Convert to DT schema

[Quchaosheng]

From: Chaosheng Qu <quchaosheng000406@163.com>

Convert the TPD12S015 HDMI level shifter binding to DT schema.

The TI TPD12S015 is an HDMI companion chip that combines a level shifter
and ESD protection circuitry. Document the two ports it exposes between
the HDMI transmitter and the connector.

The tpd12s016 is software compatible with the tpd12s015 and is listed as
a fallback compatible by am57xx-idk-common.dtsi, so accept it as a
fallback of "ti,tpd12s015". The driver matches on "ti,tpd12s015" only, so
a board using the tpd12s016 must list both compatibles.

Assisted-by: LLM
Signed-off-by: Chaosheng Qu <quchaosheng000406@163.com>
---
 .../bindings/display/ti/ti,tpd12s015.txt      | 44 ---------
 .../bindings/display/ti/ti,tpd12s015.yaml     | 90 +++++++++++++++++++
 2 files changed, 90 insertions(+), 44 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/display/ti/ti,tpd12s015.txt
 create mode 100644 Documentation/devicetree/bindings/display/ti/ti,tpd12s015.yaml

diff --git a/Documentation/devicetree/bindings/display/ti/ti,tpd12s015.txt b/Documentation/devicetree/bindings/display/ti/ti,tpd12s015.txt
deleted file mode 100644
index 26e6d32e3f20..000000000000
--- a/Documentation/devicetree/bindings/display/ti/ti,tpd12s015.txt
+++ /dev/null
@@ -1,44 +0,0 @@
-TPD12S015 HDMI level shifter and ESD protection chip
-====================================================
-
-Required properties:
-- compatible: "ti,tpd12s015"
-
-Optional properties:
-- gpios: CT CP HPD, LS OE and HPD gpios
-
-Required nodes:
-- Video port 0 for HDMI input
-- Video port 1 for HDMI output
-
-Example
--------
-
-tpd12s015: encoder@1 {
-	compatible = "ti,tpd12s015";
-
-	gpios = <&gpio2 28 GPIO_ACTIVE_HIGH>,	/* 60, CT CP HPD */
-		<&gpio2 9 GPIO_ACTIVE_HIGH>,	/* 41, LS OE */
-		<&gpio2 31 GPIO_ACTIVE_HIGH>;	/* 63, HPD */
-
-	ports {
-		#address-cells = <1>;
-		#size-cells = <0>;
-
-		port@0 {
-			reg = <0>;
-
-			tpd12s015_in: endpoint@0 {
-				remote-endpoint = <&hdmi_out>;
-			};
-		};
-
-		port@1 {
-			reg = <1>;
-
-			tpd12s015_out: endpoint@0 {
-				remote-endpoint = <&hdmi_connector_in>;
-			};
-		};
-	};
-};
diff --git a/Documentation/devicetree/bindings/display/ti/ti,tpd12s015.yaml b/Documentation/devicetree/bindings/display/ti/ti,tpd12s015.yaml
new file mode 100644
index 000000000000..1927da3bd736
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/ti/ti,tpd12s015.yaml
@@ -0,0 +1,90 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/ti/ti,tpd12s015.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI TPD12S015 HDMI level shifter and ESD protection chip
+
+maintainers:
+  - Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
+
+description: |
+  The TPD12S015 is an HDMI companion chip that combines a level shifter and
+  ESD protection circuitry. It sits between an HDMI transmitter and the HDMI
+  connector, and provides control over the level shifter enable and the
+  hot-plug detect signals.
+
+properties:
+  compatible:
+    oneOf:
+      - const: ti,tpd12s015
+      - items:
+          - const: ti,tpd12s016
+          - const: ti,tpd12s015
+
+  gpios:
+    description:
+      The CT CP HPD, LS OE and HPD GPIOs, in that order. The first controls
+      the level shifter, the second enables the level shifter outputs and
+      the third reads the hot-plug detect line.
+    maxItems: 3
+
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+
+    properties:
+      port@0:
+        $ref: /schemas/graph.yaml#/$defs/port-base
+        unevaluatedProperties: false
+        description: HDMI input from the transmitter.
+
+      port@1:
+        $ref: /schemas/graph.yaml#/$defs/port-base
+        unevaluatedProperties: false
+        description: HDMI output to the connector.
+
+    required:
+      - port@0
+      - port@1
+
+required:
+  - compatible
+  - ports
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    encoder1 {
+        compatible = "ti,tpd12s015";
+
+        gpios = <&gpio2 28 GPIO_ACTIVE_HIGH>,    /* 60, CT CP HPD */
+                <&gpio2 9 GPIO_ACTIVE_HIGH>,    /* 41, LS OE */
+                <&gpio2 31 GPIO_ACTIVE_HIGH>;    /* 63, HPD */
+
+        ports {
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            port@0 {
+                reg = <0>;
+
+                tpd12s015_in: endpoint {
+                    remote-endpoint = <&hdmi_out>;
+                };
+            };
+
+            port@1 {
+                reg = <1>;
+
+                tpd12s015_out: endpoint {
+                    remote-endpoint = <&hdmi_connector_in>;
+                };
+            };
+        };
+    };
+
+...
-- 
2.43.0

[PATCH 0/3] dt-bindings: display: ti,tpd12s015: convert, and fix what the conversion exposed

[Quchaosheng]

From: Chaosheng Qu <quchaosheng000406@163.com>

v4.  The three things Laurent pointed out on the v3 thread are addressed,
and the conversion is separated from the two devicetree fixes it turned
up.

  [1/3] converts ti,tpd12s015.txt to DT schema.  gpios is back to three
        entries: the two drivers obtain exactly three through
        devm_gpiod_get_index(), indices 0 to 2, and neither file mentions
        scl, sda or ddc.  v3 had raised maxItems to five only to keep
        dtbs_check quiet for omap5-igep0050.dts, which wrote a defect of
        the DT source into the binding.  That was backwards.

  [2/3] drops the two extra entries from omap5-igep0050.dts, which is
        where the defect belongs.  Nothing reads them: there is no
        pinctrl group for those lines and no other consumer in the tree.

  [3/3] drops the unit-address from the tpd12s015 endpoints on
        am5729-beagleboneai and am57xx-idk.  Those nodes carry a
        unit-address without a matching reg property.

Each of the two devicetree patches removes a warning that the bare
conversion leaves behind, so the three belong together:

  am5729-beagleboneai:  241 -> 237 dtbs_check warnings
  omap5-igep0050:       188 -> 186 dtbs_check warnings

with no new warnings in either file.

Assisted-by: LLM is on all three, which the v1 posting and v3 were
missing.

One thing I raised on the thread and should repeat here: Eduard Bostina
posted the same conversion on 2026-07-30,
<20260730092245.52034-1-egbostina@gmail.com>.  If his series is the one to
carry this, say so and I will drop mine.

Chaosheng Qu (3):
  dt-bindings: display: ti,tpd12s015: Convert to DT schema
  ARM: dts: ti/omap: drop the two unused gpios from the igep0050 hdmi
    encoder
  ARM: dts: ti/omap: drop unit-address from tpd12s015 endpoints

 .../bindings/display/ti/ti,tpd12s015.txt           |  44 ------
 .../bindings/display/ti/ti,tpd12s015.yaml          |  90 ++++++++++++
 arch/arm/boot/dts/ti/omap/am5729-beagleboneai.dts  |   4 +-
 arch/arm/boot/dts/ti/omap/am57xx-idk-common.dtsi   |   4 +-
 arch/arm/boot/dts/ti/omap/omap5-igep0050.dts       |   4 +-
 5 files changed, 94 insertions(+), 52 deletions(-)
-- 
2.43.0

[PATCH 1/3] dt-bindings: display: ti,tpd12s015: Convert to DT schema

[Quchaosheng]

From: Chaosheng Qu <quchaosheng000406@163.com>

Convert the TPD12S015 HDMI level shifter binding to DT schema.

The TI TPD12S015 is an HDMI companion chip that combines a level shifter
and ESD protection circuitry. Document the two ports it exposes between
the HDMI transmitter and the connector.

The tpd12s016 is software compatible with the tpd12s015 and is listed as
a fallback compatible by am57xx-idk-common.dtsi, so accept it as a
fallback of "ti,tpd12s015". The driver matches on "ti,tpd12s015" only, so
a board using the tpd12s016 must list both compatibles.

Assisted-by: LLM
Signed-off-by: Chaosheng Qu <quchaosheng000406@163.com>
---
 .../bindings/display/ti/ti,tpd12s015.txt      | 44 ---------
 .../bindings/display/ti/ti,tpd12s015.yaml     | 90 +++++++++++++++++++
 2 files changed, 90 insertions(+), 44 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/display/ti/ti,tpd12s015.txt
 create mode 100644 Documentation/devicetree/bindings/display/ti/ti,tpd12s015.yaml

diff --git a/Documentation/devicetree/bindings/display/ti/ti,tpd12s015.txt b/Documentation/devicetree/bindings/display/ti/ti,tpd12s015.txt
deleted file mode 100644
index 26e6d32e3f20..000000000000
--- a/Documentation/devicetree/bindings/display/ti/ti,tpd12s015.txt
+++ /dev/null
@@ -1,44 +0,0 @@
-TPD12S015 HDMI level shifter and ESD protection chip
-====================================================
-
-Required properties:
-- compatible: "ti,tpd12s015"
-
-Optional properties:
-- gpios: CT CP HPD, LS OE and HPD gpios
-
-Required nodes:
-- Video port 0 for HDMI input
-- Video port 1 for HDMI output
-
-Example
--------
-
-tpd12s015: encoder@1 {
-	compatible = "ti,tpd12s015";
-
-	gpios = <&gpio2 28 GPIO_ACTIVE_HIGH>,	/* 60, CT CP HPD */
-		<&gpio2 9 GPIO_ACTIVE_HIGH>,	/* 41, LS OE */
-		<&gpio2 31 GPIO_ACTIVE_HIGH>;	/* 63, HPD */
-
-	ports {
-		#address-cells = <1>;
-		#size-cells = <0>;
-
-		port@0 {
-			reg = <0>;
-
-			tpd12s015_in: endpoint@0 {
-				remote-endpoint = <&hdmi_out>;
-			};
-		};
-
-		port@1 {
-			reg = <1>;
-
-			tpd12s015_out: endpoint@0 {
-				remote-endpoint = <&hdmi_connector_in>;
-			};
-		};
-	};
-};
diff --git a/Documentation/devicetree/bindings/display/ti/ti,tpd12s015.yaml b/Documentation/devicetree/bindings/display/ti/ti,tpd12s015.yaml
new file mode 100644
index 000000000000..1927da3bd736
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/ti/ti,tpd12s015.yaml
@@ -0,0 +1,90 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/ti/ti,tpd12s015.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI TPD12S015 HDMI level shifter and ESD protection chip
+
+maintainers:
+  - Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
+
+description: |
+  The TPD12S015 is an HDMI companion chip that combines a level shifter and
+  ESD protection circuitry. It sits between an HDMI transmitter and the HDMI
+  connector, and provides control over the level shifter enable and the
+  hot-plug detect signals.
+
+properties:
+  compatible:
+    oneOf:
+      - const: ti,tpd12s015
+      - items:
+          - const: ti,tpd12s016
+          - const: ti,tpd12s015
+
+  gpios:
+    description:
+      The CT CP HPD, LS OE and HPD GPIOs, in that order. The first controls
+      the level shifter, the second enables the level shifter outputs and
+      the third reads the hot-plug detect line.
+    maxItems: 3
+
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+
+    properties:
+      port@0:
+        $ref: /schemas/graph.yaml#/$defs/port-base
+        unevaluatedProperties: false
+        description: HDMI input from the transmitter.
+
+      port@1:
+        $ref: /schemas/graph.yaml#/$defs/port-base
+        unevaluatedProperties: false
+        description: HDMI output to the connector.
+
+    required:
+      - port@0
+      - port@1
+
+required:
+  - compatible
+  - ports
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    encoder1 {
+        compatible = "ti,tpd12s015";
+
+        gpios = <&gpio2 28 GPIO_ACTIVE_HIGH>,    /* 60, CT CP HPD */
+                <&gpio2 9 GPIO_ACTIVE_HIGH>,    /* 41, LS OE */
+                <&gpio2 31 GPIO_ACTIVE_HIGH>;    /* 63, HPD */
+
+        ports {
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            port@0 {
+                reg = <0>;
+
+                tpd12s015_in: endpoint {
+                    remote-endpoint = <&hdmi_out>;
+                };
+            };
+
+            port@1 {
+                reg = <1>;
+
+                tpd12s015_out: endpoint {
+                    remote-endpoint = <&hdmi_connector_in>;
+                };
+            };
+        };
+    };
+
+...
-- 
2.43.0