[PATCH 0/6] arm64: dts: qcom: sm8[456]50: Add missing CX power domain to GCC

[PATCH 0/6] arm64: dts: qcom: sm8[456]50: Add missing CX power domain to GCC

[Neil Armstrong]

Recently, on Eliza & Milos, the CX has been tied up to the GCC,
but this is valid for most platforms including sm8[456]50.
So tie the CX power domain to the GCC as well, for the
same exact reasons as on Eliza & Milos.

Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
---
Neil Armstrong (6):
      dt-bindings: clock: qcom: gcc-sm8450: Add missing power-domains property
      dt-bindings: clock: qcom: sm8550-gcc: Add missing power-domains property
      dt-bindings: clock: qcom: sm8650-gcc: Add missing power-domains property
      arm64: dts: qcom: sm8450: Add missing CX power domain to GCC
      arm64: dts: qcom: sm8550: Add missing CX power domain to GCC
      arm64: dts: qcom: sm8650: Add missing CX power domain to GCC

 Documentation/devicetree/bindings/clock/qcom,gcc-sm8450.yaml | 5 +++++
 Documentation/devicetree/bindings/clock/qcom,sm8550-gcc.yaml | 5 +++++
 Documentation/devicetree/bindings/clock/qcom,sm8650-gcc.yaml | 5 +++++
 arch/arm64/boot/dts/qcom/sm8450.dtsi                         | 1 +
 arch/arm64/boot/dts/qcom/sm8550.dtsi                         | 1 +
 arch/arm64/boot/dts/qcom/sm8650.dtsi                         | 2 ++
 6 files changed, 19 insertions(+)
---
base-commit: 4c406406070d57dbefeaad149181785330c23f92
change-id: 20260424-topic-sm8x50-tie-gcc-to-cx-e756afa72bb8

Best regards,
--  
Neil Armstrong <neil.armstrong@linaro.org>

[PATCH 1/6] dt-bindings: clock: qcom: gcc-sm8450: Add missing power-domains property

[Neil Armstrong]

In order for the GCC votes on the GDSCs it provides to be propagated
to CX, CX needs to be declared as power domain of the GCC.

Document the missing power-domains property to that purpose.

Fixes: 72a0ca203ca7 ("dt-bindings: clock: Add SM8450 GCC clock bindings")
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
---
 Documentation/devicetree/bindings/clock/qcom,gcc-sm8450.yaml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-sm8450.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-sm8450.yaml
index 3169ac05e1d8..16fd5a42f3a0 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-sm8450.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-sm8450.yaml
@@ -47,10 +47,15 @@ properties:
       - const: usb3_phy_wrapper_gcc_usb30_pipe_clk # Optional clock
     minItems: 2
 
+  power-domains:
+    items:
+      - description: CX domain
+
 required:
   - compatible
   - clocks
   - clock-names
+  - power-domains
   - '#power-domain-cells'
 
 allOf:

-- 
2.34.1

Re: [PATCH 1/6] dt-bindings: clock: qcom: gcc-sm8450: Add missing power-domains property

[Rob Herring (Arm)]

On Fri, 24 Apr 2026 11:07:55 +0200, Neil Armstrong wrote:
> In order for the GCC votes on the GDSCs it provides to be propagated
> to CX, CX needs to be declared as power domain of the GCC.
> 
> Document the missing power-domains property to that purpose.
> 
> Fixes: 72a0ca203ca7 ("dt-bindings: clock: Add SM8450 GCC clock bindings")
> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
> ---
>  Documentation/devicetree/bindings/clock/qcom,gcc-sm8450.yaml | 5 +++++
>  1 file changed, 5 insertions(+)
> 

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/clock/qcom,gcc-sm8450.example.dtb: clock-controller@100000 (qcom,gcc-sm8450): 'power-domains' is a required property
	from schema $id: http://devicetree.org/schemas/clock/qcom,gcc-sm8450.yaml

doc reference errors (make refcheckdocs):

See https://patchwork.kernel.org/project/devicetree/patch/20260424-topic-sm8x50-tie-gcc-to-cx-v1-1-4b6e09d532ce@linaro.org

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.

[PATCH 2/6] dt-bindings: clock: qcom: sm8550-gcc: Add missing power-domains property

[Neil Armstrong]

In order for the GCC votes on the GDSCs it provides to be propagated
to CX, CX needs to be declared as power domain of the GCC.

Document the missing power-domains property to that purpose.

Fixes: 47ba9c50bbeb ("dt-bindings: clock: Add SM8550 GCC clocks")
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
---
 Documentation/devicetree/bindings/clock/qcom,sm8550-gcc.yaml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/clock/qcom,sm8550-gcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm8550-gcc.yaml
index c4e9b9bb63f5..8c40e93bf336 100644
--- a/Documentation/devicetree/bindings/clock/qcom,sm8550-gcc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,sm8550-gcc.yaml
@@ -31,9 +31,14 @@ properties:
       - description: UFS Phy Tx symbol 0 clock source
       - description: USB3 Phy wrapper pipe clock source
 
+  power-domains:
+    items:
+      - description: CX domain
+
 required:
   - compatible
   - clocks
+  - power-domains
   - '#power-domain-cells'
 
 allOf:

-- 
2.34.1

Re: [PATCH 2/6] dt-bindings: clock: qcom: sm8550-gcc: Add missing power-domains property

[Rob Herring (Arm)]

On Fri, 24 Apr 2026 11:07:56 +0200, Neil Armstrong wrote:
> In order for the GCC votes on the GDSCs it provides to be propagated
> to CX, CX needs to be declared as power domain of the GCC.
> 
> Document the missing power-domains property to that purpose.
> 
> Fixes: 47ba9c50bbeb ("dt-bindings: clock: Add SM8550 GCC clocks")
> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
> ---
>  Documentation/devicetree/bindings/clock/qcom,sm8550-gcc.yaml | 5 +++++
>  1 file changed, 5 insertions(+)
> 

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/clock/qcom,sm8550-gcc.example.dtb: clock-controller@100000 (qcom,sm8550-gcc): 'power-domains' is a required property
	from schema $id: http://devicetree.org/schemas/clock/qcom,sm8550-gcc.yaml

doc reference errors (make refcheckdocs):

See https://patchwork.kernel.org/project/devicetree/patch/20260424-topic-sm8x50-tie-gcc-to-cx-v1-2-4b6e09d532ce@linaro.org

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.

[PATCH 3/6] dt-bindings: clock: qcom: sm8650-gcc: Add missing power-domains property

[Neil Armstrong]

In order for the GCC votes on the GDSCs it provides to be propagated
to CX, CX needs to be declared as power domain of the GCC.

Document the missing power-domains property to that purpose.

Fixes: b69d932154dc ("dt-bindings: clock: qcom: document the SM8650 General Clock Controller")
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
---
 Documentation/devicetree/bindings/clock/qcom,sm8650-gcc.yaml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/clock/qcom,sm8650-gcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm8650-gcc.yaml
index c7143e2abc80..43b06e0abd1d 100644
--- a/Documentation/devicetree/bindings/clock/qcom,sm8650-gcc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,sm8650-gcc.yaml
@@ -32,9 +32,14 @@ properties:
       - description: UFS Phy Tx symbol 0 clock source
       - description: USB3 Phy wrapper pipe clock source
 
+  power-domains:
+    items:
+      - description: CX domain
+
 required:
   - compatible
   - clocks
+  - power-domains
   - '#power-domain-cells'
 
 allOf:

-- 
2.34.1

Re: [PATCH 3/6] dt-bindings: clock: qcom: sm8650-gcc: Add missing power-domains property

[Rob Herring (Arm)]

On Fri, 24 Apr 2026 11:07:57 +0200, Neil Armstrong wrote:
> In order for the GCC votes on the GDSCs it provides to be propagated
> to CX, CX needs to be declared as power domain of the GCC.
> 
> Document the missing power-domains property to that purpose.
> 
> Fixes: b69d932154dc ("dt-bindings: clock: qcom: document the SM8650 General Clock Controller")
> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
> ---
>  Documentation/devicetree/bindings/clock/qcom,sm8650-gcc.yaml | 5 +++++
>  1 file changed, 5 insertions(+)
> 

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/clock/qcom,sm8650-gcc.example.dtb: clock-controller@100000 (qcom,sm8650-gcc): 'power-domains' is a required property
	from schema $id: http://devicetree.org/schemas/clock/qcom,sm8650-gcc.yaml

doc reference errors (make refcheckdocs):

See https://patchwork.kernel.org/project/devicetree/patch/20260424-topic-sm8x50-tie-gcc-to-cx-v1-3-4b6e09d532ce@linaro.org

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.

[PATCH 4/6] arm64: dts: qcom: sm8450: Add missing CX power domain to GCC

[Neil Armstrong]

Unless CX is declared as the power-domain of GCC, votes (power and
performance) on the GDSCs it provides will not propagate to the CX,
which might result in under-voltage conditions.

Add the missing power-domains property to associate GCC with RPMHPD_CX.

Fixes: 5188049c9b36 ("arm64: dts: qcom: Add base SM8450 DTSI")
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
---
 arch/arm64/boot/dts/qcom/sm8450.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/qcom/sm8450.dtsi b/arch/arm64/boot/dts/qcom/sm8450.dtsi
index 03bf30b53f28..5aba162a952e 100644
--- a/arch/arm64/boot/dts/qcom/sm8450.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8450.dtsi
@@ -935,6 +935,7 @@ soc: soc@0 {
 		gcc: clock-controller@100000 {
 			compatible = "qcom,gcc-sm8450";
 			reg = <0x0 0x00100000 0x0 0x1f4200>;
+			power-domains = <&rpmhpd RPMHPD_CX>;
 			#clock-cells = <1>;
 			#reset-cells = <1>;
 			#power-domain-cells = <1>;

-- 
2.34.1

Re: [PATCH 4/6] arm64: dts: qcom: sm8450: Add missing CX power domain to GCC

[Konrad Dybcio]

On 4/24/26 11:07 AM, Neil Armstrong wrote:
> Unless CX is declared as the power-domain of GCC, votes (power and
> performance) on the GDSCs it provides will not propagate to the CX,
> which might result in under-voltage conditions.
> 
> Add the missing power-domains property to associate GCC with RPMHPD_CX.
> 
> Fixes: 5188049c9b36 ("arm64: dts: qcom: Add base SM8450 DTSI")
> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
> ---

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>

Konrad

Re: [PATCH 4/6] arm64: dts: qcom: sm8450: Add missing CX power domain to GCC

[Abel Vesa]

On 26-04-24 11:07:58, Neil Armstrong wrote:
> Unless CX is declared as the power-domain of GCC, votes (power and
> performance) on the GDSCs it provides will not propagate to the CX,
> which might result in under-voltage conditions.
> 
> Add the missing power-domains property to associate GCC with RPMHPD_CX.
> 
> Fixes: 5188049c9b36 ("arm64: dts: qcom: Add base SM8450 DTSI")
> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>

Reviewed-by: Abel Vesa <abel.vesa@oss.qualcomm.com>

[PATCH 5/6] arm64: dts: qcom: sm8550: Add missing CX power domain to GCC

[Neil Armstrong]

Unless CX is declared as the power-domain of GCC, votes (power and
performance) on the GDSCs it provides will not propagate to the CX,
which might result in under-voltage conditions.

Add the missing power-domains property to associate GCC with RPMHPD_CX.

Fixes: ffc50b2d3828 ("arm64: dts: qcom: Add base SM8550 dtsi")
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
---
 arch/arm64/boot/dts/qcom/sm8550.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/qcom/sm8550.dtsi b/arch/arm64/boot/dts/qcom/sm8550.dtsi
index 912525e9bca6..bc97259b378a 100644
--- a/arch/arm64/boot/dts/qcom/sm8550.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8550.dtsi
@@ -826,6 +826,7 @@ soc: soc@0 {
 		gcc: clock-controller@100000 {
 			compatible = "qcom,sm8550-gcc";
 			reg = <0 0x00100000 0 0x1f4200>;
+			power-domains = <&rpmhpd RPMHPD_CX>;
 			#clock-cells = <1>;
 			#reset-cells = <1>;
 			#power-domain-cells = <1>;

-- 
2.34.1

Re: [PATCH 5/6] arm64: dts: qcom: sm8550: Add missing CX power domain to GCC

[Konrad Dybcio]

On 4/24/26 11:07 AM, Neil Armstrong wrote:
> Unless CX is declared as the power-domain of GCC, votes (power and
> performance) on the GDSCs it provides will not propagate to the CX,
> which might result in under-voltage conditions.
> 
> Add the missing power-domains property to associate GCC with RPMHPD_CX.
> 
> Fixes: ffc50b2d3828 ("arm64: dts: qcom: Add base SM8550 dtsi")
> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
> ---

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>

Konrad

Re: [PATCH 5/6] arm64: dts: qcom: sm8550: Add missing CX power domain to GCC

[Abel Vesa]

On 26-04-24 11:07:59, Neil Armstrong wrote:
> Unless CX is declared as the power-domain of GCC, votes (power and
> performance) on the GDSCs it provides will not propagate to the CX,
> which might result in under-voltage conditions.
> 
> Add the missing power-domains property to associate GCC with RPMHPD_CX.
> 
> Fixes: ffc50b2d3828 ("arm64: dts: qcom: Add base SM8550 dtsi")
> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>

Reviewed-by: Abel Vesa <abel.vesa@oss.qualcomm.com>

[PATCH 6/6] arm64: dts: qcom: sm8650: Add missing CX power domain to GCC

[Neil Armstrong]

Unless CX is declared as the power-domain of GCC, votes (power and
performance) on the GDSCs it provides will not propagate to the CX,
which might result in under-voltage conditions.

Add the missing power-domains property to associate GCC with RPMHPD_CX.

Fixes: d2350377997f ("arm64: dts: qcom: add initial SM8650 dtsi")
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
---
 arch/arm64/boot/dts/qcom/sm8650.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sm8650.dtsi b/arch/arm64/boot/dts/qcom/sm8650.dtsi
index 1604bc8cff37..adfb737afefe 100644
--- a/arch/arm64/boot/dts/qcom/sm8650.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8650.dtsi
@@ -1963,6 +1963,8 @@ gcc: clock-controller@100000 {
 				 <&ufs_mem_phy 2>,
 				 <&usb_dp_qmpphy QMP_USB43DP_USB3_PIPE_CLK>;
 
+			power-domains = <&rpmhpd RPMHPD_CX>;
+
 			#clock-cells = <1>;
 			#reset-cells = <1>;
 			#power-domain-cells = <1>;

-- 
2.34.1

Re: [PATCH 6/6] arm64: dts: qcom: sm8650: Add missing CX power domain to GCC

[Abel Vesa]

On 26-04-24 11:08:00, Neil Armstrong wrote:
> Unless CX is declared as the power-domain of GCC, votes (power and
> performance) on the GDSCs it provides will not propagate to the CX,
> which might result in under-voltage conditions.
> 
> Add the missing power-domains property to associate GCC with RPMHPD_CX.
> 
> Fixes: d2350377997f ("arm64: dts: qcom: add initial SM8650 dtsi")
> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>

Reviewed-by: Abel Vesa <abel.vesa@oss.qualcomm.com>

Re: [PATCH 6/6] arm64: dts: qcom: sm8650: Add missing CX power domain to GCC

[Konrad Dybcio]

On 4/24/26 11:08 AM, Neil Armstrong wrote:
> Unless CX is declared as the power-domain of GCC, votes (power and
> performance) on the GDSCs it provides will not propagate to the CX,
> which might result in under-voltage conditions.
> 
> Add the missing power-domains property to associate GCC with RPMHPD_CX.
> 
> Fixes: d2350377997f ("arm64: dts: qcom: add initial SM8650 dtsi")
> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
> ---

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>

Konrad