[PATCH 0/4] arm64: dts: renesas: Fix missing cells and reg

[PATCH 0/4] arm64: dts: renesas: Fix missing cells and reg

[Marek Vasut]

Add missing cells and reg DT property into DTOs to fix warnings like this:

"
arch/arm64/boot/dts/renesas/draak-ebisu-panel-aa104xd12.dtso:30.10-34.5: Warning (unit_address_vs_reg): /fragment@2/__overlay__/ports/port@1: node has a unit name, but no reg or ranges property
"

Marek Vasut (4):
  arm64: dts: renesas: Fix missing cells and reg in Draak/Ebisu panel
    DTO
  arm64: dts: renesas: Fix missing cells and reg in Salvator-X panel DTO
  arm64: dts: renesas: rzg2l-smarc: Fix missing cells and reg into CSI2
    subnode
  arm64: dts: renesas: rzg2l-smarc: Fix missing cells and reg into DU
    subnode

 arch/arm64/boot/dts/renesas/draak-ebisu-panel-aa104xd12.dtso | 5 +++++
 arch/arm64/boot/dts/renesas/rz-smarc-cru-csi-ov5645.dtsi     | 5 +++++
 arch/arm64/boot/dts/renesas/rz-smarc-du-adv7513.dtsi         | 5 +++++
 arch/arm64/boot/dts/renesas/salvator-panel-aa104xd12.dtso    | 5 +++++
 4 files changed, 20 insertions(+)

Cc: Conor Dooley <conor+dt@kernel.org>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Krzysztof Kozlowski <krzk+dt@kernel.org>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: Rob Herring <robh@kernel.org>
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-renesas-soc@vger.kernel.org

-- 
2.53.0

[PATCH 1/4] arm64: dts: renesas: Fix missing cells and reg in Draak/Ebisu panel DTO

[Marek Vasut]

Add missing cells and reg DT property into Draak/Ebisu panel DTO to fix
the following warning:

"
arch/arm64/boot/dts/renesas/draak-ebisu-panel-aa104xd12.dtso:30.10-34.5: Warning (unit_address_vs_reg): /fragment@2/__overlay__/ports/port@1: node has a unit name, but no reg or ranges property
"

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
---
Cc: Conor Dooley <conor+dt@kernel.org>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Krzysztof Kozlowski <krzk+dt@kernel.org>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: Rob Herring <robh@kernel.org>
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-renesas-soc@vger.kernel.org
---
 arch/arm64/boot/dts/renesas/draak-ebisu-panel-aa104xd12.dtso | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/draak-ebisu-panel-aa104xd12.dtso b/arch/arm64/boot/dts/renesas/draak-ebisu-panel-aa104xd12.dtso
index 258f8668ca361..90767d74e21b2 100644
--- a/arch/arm64/boot/dts/renesas/draak-ebisu-panel-aa104xd12.dtso
+++ b/arch/arm64/boot/dts/renesas/draak-ebisu-panel-aa104xd12.dtso
@@ -27,7 +27,12 @@ &lvds1 {
 	status = "okay";
 
 	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
 		port@1 {
+			reg = <1>;
+
 			lvds1_out: endpoint {
 				remote-endpoint = <&panel_in>;
 			};
-- 
2.53.0

Re: [PATCH 1/4] arm64: dts: renesas: Fix missing cells and reg in Draak/Ebisu panel DTO

[Laurent Pinchart]

On Thu, Mar 26, 2026 at 05:23:58AM +0100, Marek Vasut wrote:
> Add missing cells and reg DT property into Draak/Ebisu panel DTO to fix
> the following warning:
> 
> "
> arch/arm64/boot/dts/renesas/draak-ebisu-panel-aa104xd12.dtso:30.10-34.5: Warning (unit_address_vs_reg): /fragment@2/__overlay__/ports/port@1: node has a unit name, but no reg or ranges property
> "
> 
> Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>

It's slightly annoying to have to specify those properties in overlays.
It would be nice to improve the tooling, but a warning-free build is
probably a more important target for now.

Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

> ---
> Cc: Conor Dooley <conor+dt@kernel.org>
> Cc: Geert Uytterhoeven <geert+renesas@glider.be>
> Cc: Krzysztof Kozlowski <krzk+dt@kernel.org>
> Cc: Magnus Damm <magnus.damm@gmail.com>
> Cc: Rob Herring <robh@kernel.org>
> Cc: devicetree@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> Cc: linux-renesas-soc@vger.kernel.org
> ---
>  arch/arm64/boot/dts/renesas/draak-ebisu-panel-aa104xd12.dtso | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/renesas/draak-ebisu-panel-aa104xd12.dtso b/arch/arm64/boot/dts/renesas/draak-ebisu-panel-aa104xd12.dtso
> index 258f8668ca361..90767d74e21b2 100644
> --- a/arch/arm64/boot/dts/renesas/draak-ebisu-panel-aa104xd12.dtso
> +++ b/arch/arm64/boot/dts/renesas/draak-ebisu-panel-aa104xd12.dtso
> @@ -27,7 +27,12 @@ &lvds1 {
>  	status = "okay";
>  
>  	ports {
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
>  		port@1 {
> +			reg = <1>;
> +
>  			lvds1_out: endpoint {
>  				remote-endpoint = <&panel_in>;
>  			};

-- 
Regards,

Laurent Pinchart

[PATCH 2/4] arm64: dts: renesas: Fix missing cells and reg in Salvator-X panel DTO

[Marek Vasut]

Add missing cells and reg DT property into Salvator-X panel DTO to fix
the following warning:

"
arch/arm64/boot/dts/renesas/salvator-panel-aa104xd12.dtso:30.10-34.5: Warning (unit_address_vs_reg): /fragment@2/__overlay__/ports/port@1: node has a unit name, but no reg or ranges property
"

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
---
Cc: Conor Dooley <conor+dt@kernel.org>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Krzysztof Kozlowski <krzk+dt@kernel.org>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: Rob Herring <robh@kernel.org>
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-renesas-soc@vger.kernel.org
---
 arch/arm64/boot/dts/renesas/salvator-panel-aa104xd12.dtso | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/salvator-panel-aa104xd12.dtso b/arch/arm64/boot/dts/renesas/salvator-panel-aa104xd12.dtso
index c83a30adc6adf..7807c3f80409a 100644
--- a/arch/arm64/boot/dts/renesas/salvator-panel-aa104xd12.dtso
+++ b/arch/arm64/boot/dts/renesas/salvator-panel-aa104xd12.dtso
@@ -27,7 +27,12 @@ &lvds0 {
 	status = "okay";
 
 	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
 		port@1 {
+			reg = <1>;
+
 			lvds0_out: endpoint {
 				remote-endpoint = <&panel_in>;
 			};
-- 
2.53.0

Re: [PATCH 2/4] arm64: dts: renesas: Fix missing cells and reg in Salvator-X panel DTO

[Laurent Pinchart]

Hi Marek,

Thank you for the patch.

On Thu, Mar 26, 2026 at 05:23:59AM +0100, Marek Vasut wrote:
> Add missing cells and reg DT property into Salvator-X panel DTO to fix
> the following warning:
> 
> "
> arch/arm64/boot/dts/renesas/salvator-panel-aa104xd12.dtso:30.10-34.5: Warning (unit_address_vs_reg): /fragment@2/__overlay__/ports/port@1: node has a unit name, but no reg or ranges property
> "
> 
> Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>

Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

> ---
> Cc: Conor Dooley <conor+dt@kernel.org>
> Cc: Geert Uytterhoeven <geert+renesas@glider.be>
> Cc: Krzysztof Kozlowski <krzk+dt@kernel.org>
> Cc: Magnus Damm <magnus.damm@gmail.com>
> Cc: Rob Herring <robh@kernel.org>
> Cc: devicetree@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> Cc: linux-renesas-soc@vger.kernel.org
> ---
>  arch/arm64/boot/dts/renesas/salvator-panel-aa104xd12.dtso | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/renesas/salvator-panel-aa104xd12.dtso b/arch/arm64/boot/dts/renesas/salvator-panel-aa104xd12.dtso
> index c83a30adc6adf..7807c3f80409a 100644
> --- a/arch/arm64/boot/dts/renesas/salvator-panel-aa104xd12.dtso
> +++ b/arch/arm64/boot/dts/renesas/salvator-panel-aa104xd12.dtso
> @@ -27,7 +27,12 @@ &lvds0 {
>  	status = "okay";
>  
>  	ports {
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
>  		port@1 {
> +			reg = <1>;
> +
>  			lvds0_out: endpoint {
>  				remote-endpoint = <&panel_in>;
>  			};

-- 
Regards,

Laurent Pinchart

[PATCH 3/4] arm64: dts: renesas: rzg2l-smarc: Fix missing cells and reg into CSI2 subnode

[Marek Vasut]

Add missing cells and reg DT property into CSI2 subnode to fix
the following warning:

"
arch/arm64/boot/dts/renesas/rz-smarc-cru-csi-ov5645.dtsi:49.10-55.5: Warning (unit_address_vs_reg): /fragment@2/__overlay__/ports/port@0: node has a unit name, but no reg or ranges property
"

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
---
Cc: Conor Dooley <conor+dt@kernel.org>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Krzysztof Kozlowski <krzk+dt@kernel.org>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: Rob Herring <robh@kernel.org>
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-renesas-soc@vger.kernel.org
---
 arch/arm64/boot/dts/renesas/rz-smarc-cru-csi-ov5645.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/rz-smarc-cru-csi-ov5645.dtsi b/arch/arm64/boot/dts/renesas/rz-smarc-cru-csi-ov5645.dtsi
index 4d2b0655859ab..3feffa4f16a9a 100644
--- a/arch/arm64/boot/dts/renesas/rz-smarc-cru-csi-ov5645.dtsi
+++ b/arch/arm64/boot/dts/renesas/rz-smarc-cru-csi-ov5645.dtsi
@@ -46,7 +46,12 @@ &csi2 {
 	status = "okay";
 
 	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
 		port@0 {
+			reg = <0>;
+
 			csi2_in: endpoint {
 				clock-lanes = <0>;
 				data-lanes = <1 2>;
-- 
2.53.0

Re: [PATCH 3/4] arm64: dts: renesas: rzg2l-smarc: Fix missing cells and reg into CSI2 subnode

[Laurent Pinchart]

On Thu, Mar 26, 2026 at 05:24:00AM +0100, Marek Vasut wrote:
> Add missing cells and reg DT property into CSI2 subnode to fix
> the following warning:
> 
> "
> arch/arm64/boot/dts/renesas/rz-smarc-cru-csi-ov5645.dtsi:49.10-55.5: Warning (unit_address_vs_reg): /fragment@2/__overlay__/ports/port@0: node has a unit name, but no reg or ranges property
> "
> 
> Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>

Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

> ---
> Cc: Conor Dooley <conor+dt@kernel.org>
> Cc: Geert Uytterhoeven <geert+renesas@glider.be>
> Cc: Krzysztof Kozlowski <krzk+dt@kernel.org>
> Cc: Magnus Damm <magnus.damm@gmail.com>
> Cc: Rob Herring <robh@kernel.org>
> Cc: devicetree@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> Cc: linux-renesas-soc@vger.kernel.org
> ---
>  arch/arm64/boot/dts/renesas/rz-smarc-cru-csi-ov5645.dtsi | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/renesas/rz-smarc-cru-csi-ov5645.dtsi b/arch/arm64/boot/dts/renesas/rz-smarc-cru-csi-ov5645.dtsi
> index 4d2b0655859ab..3feffa4f16a9a 100644
> --- a/arch/arm64/boot/dts/renesas/rz-smarc-cru-csi-ov5645.dtsi
> +++ b/arch/arm64/boot/dts/renesas/rz-smarc-cru-csi-ov5645.dtsi
> @@ -46,7 +46,12 @@ &csi2 {
>  	status = "okay";
>  
>  	ports {
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
>  		port@0 {
> +			reg = <0>;
> +
>  			csi2_in: endpoint {
>  				clock-lanes = <0>;
>  				data-lanes = <1 2>;

-- 
Regards,

Laurent Pinchart

[PATCH 4/4] arm64: dts: renesas: rzg2l-smarc: Fix missing cells and reg into DU subnode

[Marek Vasut]

Add missing cells and reg DT property into DU subnode to fix
the following warning:

"
arch/arm64/boot/dts/renesas/rz-smarc-du-adv7513.dtsi:29.10-33.5: Warning (unit_address_vs_reg): /fragment@1/__overlay__/ports/port@0: node has a unit name, but no reg or ranges property
"

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
---
Cc: Conor Dooley <conor+dt@kernel.org>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Krzysztof Kozlowski <krzk+dt@kernel.org>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: Rob Herring <robh@kernel.org>
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-renesas-soc@vger.kernel.org
---
 arch/arm64/boot/dts/renesas/rz-smarc-du-adv7513.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/rz-smarc-du-adv7513.dtsi b/arch/arm64/boot/dts/renesas/rz-smarc-du-adv7513.dtsi
index 36707576030d4..f5412578ee65f 100644
--- a/arch/arm64/boot/dts/renesas/rz-smarc-du-adv7513.dtsi
+++ b/arch/arm64/boot/dts/renesas/rz-smarc-du-adv7513.dtsi
@@ -26,7 +26,12 @@ &du {
 	status = "okay";
 
 	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
 		port@0 {
+			reg = <0>;
+
 			du_out_rgb: endpoint {
 				remote-endpoint = <&adv7513_in>;
 			};
-- 
2.53.0

Re: [PATCH 4/4] arm64: dts: renesas: rzg2l-smarc: Fix missing cells and reg into DU subnode

[Laurent Pinchart]

On Thu, Mar 26, 2026 at 05:24:01AM +0100, Marek Vasut wrote:
> Add missing cells and reg DT property into DU subnode to fix
> the following warning:
> 
> "
> arch/arm64/boot/dts/renesas/rz-smarc-du-adv7513.dtsi:29.10-33.5: Warning (unit_address_vs_reg): /fragment@1/__overlay__/ports/port@0: node has a unit name, but no reg or ranges property
> "
> 
> Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>

Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

> ---
> Cc: Conor Dooley <conor+dt@kernel.org>
> Cc: Geert Uytterhoeven <geert+renesas@glider.be>
> Cc: Krzysztof Kozlowski <krzk+dt@kernel.org>
> Cc: Magnus Damm <magnus.damm@gmail.com>
> Cc: Rob Herring <robh@kernel.org>
> Cc: devicetree@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> Cc: linux-renesas-soc@vger.kernel.org
> ---
>  arch/arm64/boot/dts/renesas/rz-smarc-du-adv7513.dtsi | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/renesas/rz-smarc-du-adv7513.dtsi b/arch/arm64/boot/dts/renesas/rz-smarc-du-adv7513.dtsi
> index 36707576030d4..f5412578ee65f 100644
> --- a/arch/arm64/boot/dts/renesas/rz-smarc-du-adv7513.dtsi
> +++ b/arch/arm64/boot/dts/renesas/rz-smarc-du-adv7513.dtsi
> @@ -26,7 +26,12 @@ &du {
>  	status = "okay";
>  
>  	ports {
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
>  		port@0 {
> +			reg = <0>;
> +
>  			du_out_rgb: endpoint {
>  				remote-endpoint = <&adv7513_in>;
>  			};

-- 
Regards,

Laurent Pinchart

Re: [PATCH 0/4] arm64: dts: renesas: Fix missing cells and reg

[Geert Uytterhoeven]

Hi Marek,

Thanks for your series!

On Thu, 26 Mar 2026 at 05:24, Marek Vasut
<marek.vasut+renesas@mailbox.org> wrote:
> Add missing cells and reg DT property into DTOs to fix warnings like this:
>
> "
> arch/arm64/boot/dts/renesas/draak-ebisu-panel-aa104xd12.dtso:30.10-34.5: Warning (unit_address_vs_reg): /fragment@2/__overlay__/ports/port@1: node has a unit name, but no reg or ranges property
> "

All of these are dtc W=1 warnings, right?

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

Re: [PATCH 0/4] arm64: dts: renesas: Fix missing cells and reg

[Marek Vasut]

On 3/26/26 11:07 AM, Geert Uytterhoeven wrote:

Hello Geert,

> Thanks for your series!
> 
> On Thu, 26 Mar 2026 at 05:24, Marek Vasut
> <marek.vasut+renesas@mailbox.org> wrote:
>> Add missing cells and reg DT property into DTOs to fix warnings like this:
>>
>> "
>> arch/arm64/boot/dts/renesas/draak-ebisu-panel-aa104xd12.dtso:30.10-34.5: Warning (unit_address_vs_reg): /fragment@2/__overlay__/ports/port@1: node has a unit name, but no reg or ranges property
>> "
> 
> All of these are dtc W=1 warnings, right?

Yes, I slowly started linting and validating the various DTs we have to 
remove leftover warnings.

-- 
Best regards,
Marek Vasut

Re: [PATCH 0/4] arm64: dts: renesas: Fix missing cells and reg

[Geert Uytterhoeven]

On Thu, 26 Mar 2026 at 21:40, Marek Vasut <marek.vasut@mailbox.org> wrote:
> On 3/26/26 11:07 AM, Geert Uytterhoeven wrote:
> > On Thu, 26 Mar 2026 at 05:24, Marek Vasut
> > <marek.vasut+renesas@mailbox.org> wrote:
> >> Add missing cells and reg DT property into DTOs to fix warnings like this:
> >>
> >> "
> >> arch/arm64/boot/dts/renesas/draak-ebisu-panel-aa104xd12.dtso:30.10-34.5: Warning (unit_address_vs_reg): /fragment@2/__overlay__/ports/port@1: node has a unit name, but no reg or ranges property
> >> "
> >
> > All of these are dtc W=1 warnings, right?
>
> Yes, I slowly started linting and validating the various DTs we have to
> remove leftover warnings.

As this is about display and camera, I am pulling in some multimedia guys.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds