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[PATCH v2 2/5] dt-bindings: clock: google,gs101-clock: Add DPU clock management unit

Peter Griffin posted 5 patches 3 weeks, 6 days ago
There is a newer version of this series
[PATCH v2 2/5] dt-bindings: clock: google,gs101-clock: Add DPU clock management unit
Posted by Peter Griffin 3 weeks, 6 days ago 
Add dt schema documentation and clock IDs for the Display Process Unit
(DPU) clock management unit (CMU). This CMU feeds IPs such as image scaler,
enhancer and compressor.

Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
---
Changes in v2
 - alphanumeric placement (Krzysztof)
---
 .../bindings/clock/google,gs101-clock.yaml         | 19 ++++++++++++
 include/dt-bindings/clock/google,gs101.h           | 36 ++++++++++++++++++++++
 2 files changed, 55 insertions(+)

diff --git a/Documentation/devicetree/bindings/clock/google,gs101-clock.yaml b/Documentation/devicetree/bindings/clock/google,gs101-clock.yaml
index a8176687bb773ae90800b9c256bcccebfdef2e49..00620ab1872db0489dce1823ab500c0062b651f0 100644
--- a/Documentation/devicetree/bindings/clock/google,gs101-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/google,gs101-clock.yaml
@@ -28,6 +28,7 @@ properties:
   compatible:
     enum:
       - google,gs101-cmu-apm
+      - google,gs101-cmu-dpu
       - google,gs101-cmu-hsi0
       - google,gs101-cmu-hsi2
       - google,gs101-cmu-misc
@@ -82,6 +83,24 @@ allOf:
           items:
             - const: oscclk
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: google,gs101-cmu-dpu
+
+    then:
+      properties:
+        clocks:
+          items:
+            - description: External reference clock (24.576 MHz)
+            - description: DPU bus clock (from CMU_TOP)
+
+        clock-names:
+          items:
+            - const: oscclk
+            - const: bus
+
   - if:
       properties:
         compatible:
diff --git a/include/dt-bindings/clock/google,gs101.h b/include/dt-bindings/clock/google,gs101.h
index 442f9e9037dc33198a1cee20af62fc70bbd96605..4ee46503663c1f8d9463536c347de5d991474145 100644
--- a/include/dt-bindings/clock/google,gs101.h
+++ b/include/dt-bindings/clock/google,gs101.h
@@ -634,4 +634,40 @@
 #define CLK_GOUT_PERIC1_CLK_PERIC1_USI9_USI_CLK		45
 #define CLK_GOUT_PERIC1_SYSREG_PERIC1_PCLK		46
 
+/* CMU_DPU */
+#define CLK_MOUT_DPU_BUS_USER				1
+#define CLK_DOUT_DPU_BUSP				2
+#define CLK_GOUT_DPU_PCLK				3
+#define CLK_GOUT_DPU_CLK_DPU_OSCCLK_CLK			4
+#define CLK_GOUT_DPU_AD_APB_DPU_DMA_PCLKM		5
+#define CLK_GOUT_DPU_DPUF_ACLK_DMA			6
+#define CLK_GOUT_DPU_DPUF_ACLK_DPP			7
+#define CLK_GOUT_DPU_D_TZPC_DPU_PCLK			8
+#define CLK_GOUT_DPU_GPC_DPU_PCLK			9
+#define CLK_GOUT_DPU_LHM_AXI_P_DPU_I_CLK		10
+#define CLK_GOUT_DPU_LHS_AXI_D0_DPU_I_CLK		11
+#define CLK_GOUT_DPU_LHS_AXI_D1_DPU_I_CLK		12
+#define CLK_GOUT_DPU_LHS_AXI_D2_DPU_I_CLK		13
+#define CLK_GOUT_DPU_PPMU_DPUD0_ACLK			14
+#define CLK_GOUT_DPU_PPMU_DPUD0_PCLK			15
+#define CLK_GOUT_DPU_PPMU_DPUD1_ACLK			16
+#define CLK_GOUT_DPU_PPMU_DPUD1_PCLK			17
+#define CLK_GOUT_DPU_PPMU_DPUD2_ACLK			18
+#define CLK_GOUT_DPU_PPMU_DPUD2_PCLK			19
+#define CLK_GOUT_DPU_CLK_DPU_BUSD_CLK			20
+#define CLK_GOUT_DPU_CLK_DPU_BUSP_CLK			21
+#define CLK_GOUT_DPU_SSMT_DPU0_ACLK			22
+#define CLK_GOUT_DPU_SSMT_DPU0_PCLK			23
+#define CLK_GOUT_DPU_SSMT_DPU1_ACLK			24
+#define CLK_GOUT_DPU_SSMT_DPU1_PCLK			25
+#define CLK_GOUT_DPU_SSMT_DPU2_ACLK			26
+#define CLK_GOUT_DPU_SSMT_DPU2_PCLK			27
+#define CLK_GOUT_DPU_SYSMMU_DPUD0_CLK_S1		28
+#define CLK_GOUT_DPU_SYSMMU_DPUD0_CLK_S2		29
+#define CLK_GOUT_DPU_SYSMMU_DPUD1_CLK_S1		30
+#define CLK_GOUT_DPU_SYSMMU_DPUD1_CLK_S2		31
+#define CLK_GOUT_DPU_SYSMMU_DPUD2_CLK_S1		32
+#define CLK_GOUT_DPU_SYSMMU_DPUD2_CLK_S2		33
+#define CLK_GOUT_DPU_SYSREG_DPU_PCLK			34
+
 #endif /* _DT_BINDINGS_CLOCK_GOOGLE_GS101_H */

-- 
2.52.0.457.g6b5491de43-goog
Re: [PATCH v2 2/5] dt-bindings: clock: google,gs101-clock: Add DPU clock management unit
Posted by André Draszik 3 weeks, 6 days ago 
On Mon, 2026-01-12 at 14:16 +0000, Peter Griffin wrote:
> Add dt schema documentation and clock IDs for the Display Process Unit
> (DPU) clock management unit (CMU). This CMU feeds IPs such as image scaler,
> enhancer and compressor.
> 
> Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
> ---
> Changes in v2
>  - alphanumeric placement (Krzysztof)
> ---
>  .../bindings/clock/google,gs101-clock.yaml         | 19 ++++++++++++
>  include/dt-bindings/clock/google,gs101.h           | 36 ++++++++++++++++++++++
>  2 files changed, 55 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/clock/google,gs101-clock.yaml b/Documentation/devicetree/bindings/clock/google,gs101-
> clock.yaml
> index a8176687bb773ae90800b9c256bcccebfdef2e49..00620ab1872db0489dce1823ab500c0062b651f0 100644
> --- a/Documentation/devicetree/bindings/clock/google,gs101-clock.yaml
> +++ b/Documentation/devicetree/bindings/clock/google,gs101-clock.yaml
> @@ -28,6 +28,7 @@ properties:
>    compatible:
>      enum:
>        - google,gs101-cmu-apm
> +      - google,gs101-cmu-dpu
>        - google,gs101-cmu-hsi0
>        - google,gs101-cmu-hsi2
>        - google,gs101-cmu-misc
> @@ -82,6 +83,24 @@ allOf:
>            items:
>              - const: oscclk
>  
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            const: google,gs101-cmu-dpu
> +
> +    then:
> +      properties:
> +        clocks:
> +          items:
> +            - description: External reference clock (24.576 MHz)
> +            - description: DPU bus clock (from CMU_TOP)
> +
> +        clock-names:
> +          items:
> +            - const: oscclk
> +            - const: bus
> +
>    - if:
>        properties:
>          compatible:
> diff --git a/include/dt-bindings/clock/google,gs101.h b/include/dt-bindings/clock/google,gs101.h
> index 442f9e9037dc33198a1cee20af62fc70bbd96605..4ee46503663c1f8d9463536c347de5d991474145 100644
> --- a/include/dt-bindings/clock/google,gs101.h
> +++ b/include/dt-bindings/clock/google,gs101.h
> @@ -634,4 +634,40 @@
>  #define CLK_GOUT_PERIC1_CLK_PERIC1_USI9_USI_CLK		45
>  #define CLK_GOUT_PERIC1_SYSREG_PERIC1_PCLK		46
>  
> +/* CMU_DPU */

Maybe add this block before hsi0 and after apm to keep alphabetic ordering
of CMU blocks in this file.

Cheers,
Andre'
Re: [PATCH v2 2/5] dt-bindings: clock: google,gs101-clock: Add DPU clock management unit
Posted by Peter Griffin 3 weeks, 6 days ago 
Hi André,

On Mon, 12 Jan 2026 at 14:32, André Draszik <andre.draszik@linaro.org> wrote:
>
> On Mon, 2026-01-12 at 14:16 +0000, Peter Griffin wrote:
> > Add dt schema documentation and clock IDs for the Display Process Unit
> > (DPU) clock management unit (CMU). This CMU feeds IPs such as image scaler,
> > enhancer and compressor.
> >
> > Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
> > ---
> > Changes in v2
> >  - alphanumeric placement (Krzysztof)
> > ---
> >  .../bindings/clock/google,gs101-clock.yaml         | 19 ++++++++++++
> >  include/dt-bindings/clock/google,gs101.h           | 36 ++++++++++++++++++++++
> >  2 files changed, 55 insertions(+)
> >
> > diff --git a/Documentation/devicetree/bindings/clock/google,gs101-clock.yaml b/Documentation/devicetree/bindings/clock/google,gs101-
> > clock.yaml
> > index a8176687bb773ae90800b9c256bcccebfdef2e49..00620ab1872db0489dce1823ab500c0062b651f0 100644
> > --- a/Documentation/devicetree/bindings/clock/google,gs101-clock.yaml
> > +++ b/Documentation/devicetree/bindings/clock/google,gs101-clock.yaml
> > @@ -28,6 +28,7 @@ properties:
> >    compatible:
> >      enum:
> >        - google,gs101-cmu-apm
> > +      - google,gs101-cmu-dpu
> >        - google,gs101-cmu-hsi0
> >        - google,gs101-cmu-hsi2
> >        - google,gs101-cmu-misc
> > @@ -82,6 +83,24 @@ allOf:
> >            items:
> >              - const: oscclk
> >
> > +  - if:
> > +      properties:
> > +        compatible:
> > +          contains:
> > +            const: google,gs101-cmu-dpu
> > +
> > +    then:
> > +      properties:
> > +        clocks:
> > +          items:
> > +            - description: External reference clock (24.576 MHz)
> > +            - description: DPU bus clock (from CMU_TOP)
> > +
> > +        clock-names:
> > +          items:
> > +            - const: oscclk
> > +            - const: bus
> > +
> >    - if:
> >        properties:
> >          compatible:
> > diff --git a/include/dt-bindings/clock/google,gs101.h b/include/dt-bindings/clock/google,gs101.h
> > index 442f9e9037dc33198a1cee20af62fc70bbd96605..4ee46503663c1f8d9463536c347de5d991474145 100644
> > --- a/include/dt-bindings/clock/google,gs101.h
> > +++ b/include/dt-bindings/clock/google,gs101.h
> > @@ -634,4 +634,40 @@
> >  #define CLK_GOUT_PERIC1_CLK_PERIC1_USI9_USI_CLK              45
> >  #define CLK_GOUT_PERIC1_SYSREG_PERIC1_PCLK           46
> >
> > +/* CMU_DPU */
>
> Maybe add this block before hsi0 and after apm to keep alphabetic ordering
> of CMU blocks in this file.

Thanks for the review. Good point, I'll fix that and send a v3.

Peter

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