[PATCH v2 0/3] SM8750 GPU clocks

[PATCH v2 0/3] SM8750 GPU clocks

[Konrad Dybcio]

This series brings a driver for GPU clock controllers (there are two
now, but that's almost a cosmetic change) on 8750 and wires up the GPU
SMMU instance.

No external dependencies to the best of my knowledge.

Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
---
Changes in v2:
- gxcc bindings: remove double colon & list the names for power-domains
- Link to v1: https://lore.kernel.org/r/20250708-topic-8750_gpucc-v1-0-86c86a504d47@oss.qualcomm.com

---
Konrad Dybcio (3):
      dt-bindings: clock: qcom: Add SM8750 GPU clocks
      clk: qcom: Add a driver for SM8750 GPU clocks
      arm64: dts: qcom: sm8750: Add GPU clock & IOMMU nodes

 .../bindings/clock/qcom,sm8450-gpucc.yaml          |   5 +
 .../bindings/clock/qcom,sm8750-gxcc.yaml           |  61 +++
 arch/arm64/boot/dts/qcom/sm8750.dtsi               |  63 +++
 drivers/clk/qcom/Kconfig                           |   9 +
 drivers/clk/qcom/Makefile                          |   1 +
 drivers/clk/qcom/gpucc-sm8750.c                    | 524 +++++++++++++++++++++
 include/dt-bindings/clock/qcom,sm8750-gpucc.h      |  53 +++
 7 files changed, 716 insertions(+)
---
base-commit: 0be23810e32e6d0a17df7c0ebad895ba2c210fc4
change-id: 20250708-topic-8750_gpucc-2e68defb27d3

Best regards,
-- 
Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>

[PATCH v2 1/3] dt-bindings: clock: qcom: Add SM8750 GPU clocks

[Konrad Dybcio]

From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>

The SM8750 features a "traditional" GPU_CC block, much of which is
controlled through the GMU microcontroller. Additionally, there's
an separate GX_CC block, where the GX GDSC is moved.

Add bindings to accommodate for that.

Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
---
 .../bindings/clock/qcom,sm8450-gpucc.yaml          |  5 ++
 .../bindings/clock/qcom,sm8750-gxcc.yaml           | 61 ++++++++++++++++++++++
 include/dt-bindings/clock/qcom,sm8750-gpucc.h      | 53 +++++++++++++++++++
 3 files changed, 119 insertions(+)

diff --git a/Documentation/devicetree/bindings/clock/qcom,sm8450-gpucc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm8450-gpucc.yaml
index 02968632fb3af34d6b3983a6a24aa742db1d59b1..d1b3557ab344b071d16dba4d5c6a267b7ab70573 100644
--- a/Documentation/devicetree/bindings/clock/qcom,sm8450-gpucc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,sm8450-gpucc.yaml
@@ -20,6 +20,7 @@ description: |
     include/dt-bindings/clock/qcom,sm8550-gpucc.h
     include/dt-bindings/reset/qcom,sm8450-gpucc.h
     include/dt-bindings/reset/qcom,sm8650-gpucc.h
+    include/dt-bindings/reset/qcom,sm8750-gpucc.h
     include/dt-bindings/reset/qcom,x1e80100-gpucc.h
 
 properties:
@@ -31,6 +32,7 @@ properties:
       - qcom,sm8475-gpucc
       - qcom,sm8550-gpucc
       - qcom,sm8650-gpucc
+      - qcom,sm8750-gpucc
       - qcom,x1e80100-gpucc
       - qcom,x1p42100-gpucc
 
@@ -40,6 +42,9 @@ properties:
       - description: GPLL0 main branch source
       - description: GPLL0 div branch source
 
+  power-domains:
+    maxItems: 1
+
 required:
   - compatible
   - clocks
diff --git a/Documentation/devicetree/bindings/clock/qcom,sm8750-gxcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm8750-gxcc.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..b900c19156f5a2ba4e0f7c95276c771f615fdf23
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,sm8750-gxcc.yaml
@@ -0,0 +1,61 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,sm8750-gxcc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Graphics Clock & Reset Controller on SM8750
+
+maintainers:
+  - Konrad Dybcio <konradybcio@kernel.org>
+
+description: |
+  Qualcomm graphics clock control module provides the clocks, resets and power
+  domains on Qualcomm SoCs.
+
+  See also:
+    include/dt-bindings/reset/qcom,sm8750-gpucc.h
+
+properties:
+  compatible:
+    enum:
+      - qcom,sm8750-gxcc
+
+  reg:
+    maxItems: 1
+
+  power-domains:
+    items:
+      - description: GFX voltage rail
+      - description: MX_COLLAPSIBLE voltage rail
+      - description: GPU_CC_CX GDSC
+
+  '#power-domain-cells':
+    const: 1
+
+required:
+  - compatible
+  - power-domains
+  - '#power-domain-cells'
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/qcom,sm8750-gpucc.h>
+    #include <dt-bindings/power/qcom,rpmhpd.h>
+
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        clock-controller@3d64000 {
+            compatible = "qcom,sm8750-gxcc";
+            reg = <0x0 0x03d64000 0x0 0x6000>;
+            power-domains = <&rpmhpd RPMHPD_GFX>,
+                            <&rpmhpd RPMHPD_MXC>,
+                            <&gpucc GPU_CC_CX_GDSC>;
+            #power-domain-cells = <1>;
+        };
+    };
+...
diff --git a/include/dt-bindings/clock/qcom,sm8750-gpucc.h b/include/dt-bindings/clock/qcom,sm8750-gpucc.h
new file mode 100644
index 0000000000000000000000000000000000000000..98e2f5df78740bf298c6b1065972d7e58ee81713
--- /dev/null
+++ b/include/dt-bindings/clock/qcom,sm8750-gpucc.h
@@ -0,0 +1,53 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+/*
+ * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
+ */
+#ifndef _DT_BINDINGS_CLK_QCOM_GPU_CC_SM8750_H
+#define _DT_BINDINGS_CLK_QCOM_GPU_CC_SM8750_H
+
+/* GPU_CC clocks */
+#define GPU_CC_AHB_CLK						0
+#define GPU_CC_CB_CLK						1
+#define GPU_CC_CX_ACCU_SHIFT_CLK				2
+#define GPU_CC_CX_FF_CLK					3
+#define GPU_CC_CX_GMU_CLK					4
+#define GPU_CC_CXO_AON_CLK					5
+#define GPU_CC_CXO_CLK						6
+#define GPU_CC_DEMET_CLK					7
+#define GPU_CC_DPM_CLK						8
+#define GPU_CC_FF_CLK_SRC					9
+#define GPU_CC_FREQ_MEASURE_CLK					10
+#define GPU_CC_GMU_CLK_SRC					11
+#define GPU_CC_GX_ACCU_SHIFT_CLK				12
+#define GPU_CC_GX_ACD_AHB_FF_CLK				13
+#define GPU_CC_GX_AHB_FF_CLK					14
+#define GPU_CC_GX_GMU_CLK					15
+#define GPU_CC_GX_RCG_AHB_FF_CLK				16
+#define GPU_CC_HLOS1_VOTE_GPU_SMMU_CLK				17
+#define GPU_CC_HUB_AON_CLK					18
+#define GPU_CC_HUB_CLK_SRC					19
+#define GPU_CC_HUB_CX_INT_CLK					20
+#define GPU_CC_HUB_DIV_CLK_SRC					21
+#define GPU_CC_MEMNOC_GFX_CLK					22
+#define GPU_CC_PLL0						23
+#define GPU_CC_PLL0_OUT_EVEN					24
+#define GPU_CC_RSCC_HUB_AON_CLK					25
+#define GPU_CC_RSCC_XO_AON_CLK					26
+#define GPU_CC_SLEEP_CLK					27
+
+/* GPU_CC power domains */
+#define GPU_CC_CX_GDSC						0
+
+/* GPU_CC resets */
+#define GPU_CC_GPU_CC_CB_BCR					0
+#define GPU_CC_GPU_CC_CX_BCR					1
+#define GPU_CC_GPU_CC_FAST_HUB_BCR				2
+#define GPU_CC_GPU_CC_FF_BCR					3
+#define GPU_CC_GPU_CC_GMU_BCR					4
+#define GPU_CC_GPU_CC_GX_BCR					5
+#define GPU_CC_GPU_CC_XO_BCR					6
+
+/* GX_CC power domains */
+#define GX_CC_GX_GDSC						0
+
+#endif

-- 
2.50.1

Re: [PATCH v2 1/3] dt-bindings: clock: qcom: Add SM8750 GPU clocks

[Krzysztof Kozlowski]

On Wed, Jul 23, 2025 at 10:38:48PM +0200, Konrad Dybcio wrote:
> From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
> 
> The SM8750 features a "traditional" GPU_CC block, much of which is
> controlled through the GMU microcontroller. Additionally, there's
> an separate GX_CC block, where the GX GDSC is moved.
> 
> Add bindings to accommodate for that.
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
> ---
>  .../bindings/clock/qcom,sm8450-gpucc.yaml          |  5 ++
>  .../bindings/clock/qcom,sm8750-gxcc.yaml           | 61 ++++++++++++++++++++++
>  include/dt-bindings/clock/qcom,sm8750-gpucc.h      | 53 +++++++++++++++++++
>  3 files changed, 119 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/clock/qcom,sm8450-gpucc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm8450-gpucc.yaml
> index 02968632fb3af34d6b3983a6a24aa742db1d59b1..d1b3557ab344b071d16dba4d5c6a267b7ab70573 100644
> --- a/Documentation/devicetree/bindings/clock/qcom,sm8450-gpucc.yaml
> +++ b/Documentation/devicetree/bindings/clock/qcom,sm8450-gpucc.yaml
> @@ -20,6 +20,7 @@ description: |
>      include/dt-bindings/clock/qcom,sm8550-gpucc.h
>      include/dt-bindings/reset/qcom,sm8450-gpucc.h
>      include/dt-bindings/reset/qcom,sm8650-gpucc.h
> +    include/dt-bindings/reset/qcom,sm8750-gpucc.h
>      include/dt-bindings/reset/qcom,x1e80100-gpucc.h
>  
>  properties:
> @@ -31,6 +32,7 @@ properties:
>        - qcom,sm8475-gpucc
>        - qcom,sm8550-gpucc
>        - qcom,sm8650-gpucc
> +      - qcom,sm8750-gpucc
>        - qcom,x1e80100-gpucc
>        - qcom,x1p42100-gpucc
>  
> @@ -40,6 +42,9 @@ properties:
>        - description: GPLL0 main branch source
>        - description: GPLL0 div branch source
>  
> +  power-domains:
> +    maxItems: 1

This should be a different binding or you need to restrict other
variants here.

> +
>  required:
>    - compatible
>    - clocks
> diff --git a/Documentation/devicetree/bindings/clock/qcom,sm8750-gxcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm8750-gxcc.yaml
> new file mode 100644
> index 0000000000000000000000000000000000000000..b900c19156f5a2ba4e0f7c95276c771f615fdf23
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/clock/qcom,sm8750-gxcc.yaml

There is nothing for clocks in the binding. Place power domain providers
in their directory.

> @@ -0,0 +1,61 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/clock/qcom,sm8750-gxcc.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm Graphics Clock & Reset Controller on SM8750

There is no clocks nor resets here. Only power domains.

> +
> +maintainers:
> +  - Konrad Dybcio <konradybcio@kernel.org>
> +
> +description: |
> +  Qualcomm graphics clock control module provides the clocks, resets and power

Also confusing.

> +  domains on Qualcomm SoCs.
> +
> +  See also:
> +    include/dt-bindings/reset/qcom,sm8750-gpucc.h

reset or clock path?

> +
> +properties:
> +  compatible:
> +    enum:
> +      - qcom,sm8750-gxcc
> +
> +  reg:
> +    maxItems: 1
> +
> +  power-domains:
> +    items:
> +      - description: GFX voltage rail
> +      - description: MX_COLLAPSIBLE voltage rail
> +      - description: GPU_CC_CX GDSC
> +
> +  '#power-domain-cells':
> +    const: 1
> +
> +required:
> +  - compatible
> +  - power-domains
> +  - '#power-domain-cells'
> +

You miss ref... or this is a bit confusing.

> +unevaluatedProperties: false

additionalProperties instead

> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/qcom,sm8750-gpucc.h>
> +    #include <dt-bindings/power/qcom,rpmhpd.h>
> +
> +    soc {
> +        #address-cells = <2>;
> +        #size-cells = <2>;
> +
> +        clock-controller@3d64000 {

No, clock controllers have clock-cells. This cannot be a clock
controller if it does not have any clocks for anyone to use.

Best regards,
Krzysztof

Re: [PATCH v2 1/3] dt-bindings: clock: qcom: Add SM8750 GPU clocks

[Konrad Dybcio]

On 7/24/25 10:18 AM, Krzysztof Kozlowski wrote:
> On Wed, Jul 23, 2025 at 10:38:48PM +0200, Konrad Dybcio wrote:
>> From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
>>
>> The SM8750 features a "traditional" GPU_CC block, much of which is
>> controlled through the GMU microcontroller. Additionally, there's
>> an separate GX_CC block, where the GX GDSC is moved.
>>
>> Add bindings to accommodate for that.
>>
>> Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
>> ---

[...]

>> +title: Qualcomm Graphics Clock & Reset Controller on SM8750
> 
> There is no clocks nor resets here. Only power domains.

There are clocks and resets in this IP block (inside the register
space mentioned in the dt patch/example), but the OS is not supposed
to poke at them (it can in theory, but we have a uC - the GMU -
doing the same thing so it would be stepping on one another's toes..).
Not sure how to express that.

I could for example add #define indices in include/dt-bindings, listing
out the clocks and never consume them. Does that sound fair?

> 
>> +
>> +maintainers:
>> +  - Konrad Dybcio <konradybcio@kernel.org>
>> +
>> +description: |
>> +  Qualcomm graphics clock control module provides the clocks, resets and power
> 
> Also confusing.
> 
>> +  domains on Qualcomm SoCs.
>> +
>> +  See also:
>> +    include/dt-bindings/reset/qcom,sm8750-gpucc.h
> 
> reset or clock path?

Ugh, clock

> 
>> +
>> +properties:
>> +  compatible:
>> +    enum:
>> +      - qcom,sm8750-gxcc
>> +
>> +  reg:
>> +    maxItems: 1
>> +
>> +  power-domains:
>> +    items:
>> +      - description: GFX voltage rail
>> +      - description: MX_COLLAPSIBLE voltage rail
>> +      - description: GPU_CC_CX GDSC
>> +
>> +  '#power-domain-cells':
>> +    const: 1
>> +
>> +required:
>> +  - compatible
>> +  - power-domains
>> +  - '#power-domain-cells'
>> +
> 
> You miss ref... or this is a bit confusing.
ref to what? qcom,gcc? I specifically omitted it, as that adds
requirements which you stated above.

Konrad

> 
>> +unevaluatedProperties: false
> 
> additionalProperties instead
> 
>> +
>> +examples:
>> +  - |
>> +    #include <dt-bindings/clock/qcom,sm8750-gpucc.h>
>> +    #include <dt-bindings/power/qcom,rpmhpd.h>
>> +
>> +    soc {
>> +        #address-cells = <2>;
>> +        #size-cells = <2>;
>> +
>> +        clock-controller@3d64000 {
> 
> No, clock controllers have clock-cells. This cannot be a clock
> controller if it does not have any clocks for anyone to use.
> 
> Best regards,
> Krzysztof
> 

Re: [PATCH v2 1/3] dt-bindings: clock: qcom: Add SM8750 GPU clocks

[Krzysztof Kozlowski]

On 24/07/2025 12:53, Konrad Dybcio wrote:
> On 7/24/25 10:18 AM, Krzysztof Kozlowski wrote:
>> On Wed, Jul 23, 2025 at 10:38:48PM +0200, Konrad Dybcio wrote:
>>> From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
>>>
>>> The SM8750 features a "traditional" GPU_CC block, much of which is
>>> controlled through the GMU microcontroller. Additionally, there's
>>> an separate GX_CC block, where the GX GDSC is moved.
>>>
>>> Add bindings to accommodate for that.
>>>
>>> Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
>>> ---
> 
> [...]
> 
>>> +title: Qualcomm Graphics Clock & Reset Controller on SM8750
>>
>> There is no clocks nor resets here. Only power domains.
> 
> There are clocks and resets in this IP block (inside the register
> space mentioned in the dt patch/example), but the OS is not supposed
> to poke at them (it can in theory, but we have a uC - the GMU -
> doing the same thing so it would be stepping on one another's toes..).
> Not sure how to express that.
> 
> I could for example add #define indices in include/dt-bindings, listing
> out the clocks and never consume them. Does that sound fair?

Explain that in the binding description.

> 
>>
>>> +
>>> +maintainers:
>>> +  - Konrad Dybcio <konradybcio@kernel.org>
>>> +
>>> +description: |
>>> +  Qualcomm graphics clock control module provides the clocks, resets and power
>>
>> Also confusing.
>>
>>> +  domains on Qualcomm SoCs.
>>> +
>>> +  See also:
>>> +    include/dt-bindings/reset/qcom,sm8750-gpucc.h
>>
>> reset or clock path?
> 
> Ugh, clock
> 
>>
>>> +
>>> +properties:
>>> +  compatible:
>>> +    enum:
>>> +      - qcom,sm8750-gxcc
>>> +
>>> +  reg:
>>> +    maxItems: 1
>>> +
>>> +  power-domains:
>>> +    items:
>>> +      - description: GFX voltage rail
>>> +      - description: MX_COLLAPSIBLE voltage rail
>>> +      - description: GPU_CC_CX GDSC
>>> +
>>> +  '#power-domain-cells':
>>> +    const: 1
>>> +
>>> +required:
>>> +  - compatible
>>> +  - power-domains
>>> +  - '#power-domain-cells'
>>> +
>>
>> You miss ref... or this is a bit confusing.
> ref to what? qcom,gcc? I specifically omitted it, as that adds
> requirements which you stated above.

Yes, qcom,gcc. If that was missing intentionally, it is fine assuming
you implement the rest of comments.


Best regards,
Krzysztof

Re: [PATCH v2 1/3] dt-bindings: clock: qcom: Add SM8750 GPU clocks

[Konrad Dybcio]

On 7/24/25 4:42 PM, Krzysztof Kozlowski wrote:
> On 24/07/2025 12:53, Konrad Dybcio wrote:
>> On 7/24/25 10:18 AM, Krzysztof Kozlowski wrote:
>>> On Wed, Jul 23, 2025 at 10:38:48PM +0200, Konrad Dybcio wrote:
>>>> From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
>>>>
>>>> The SM8750 features a "traditional" GPU_CC block, much of which is
>>>> controlled through the GMU microcontroller. Additionally, there's
>>>> an separate GX_CC block, where the GX GDSC is moved.
>>>>
>>>> Add bindings to accommodate for that.
>>>>
>>>> Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
>>>> ---

[...]

> Yes, qcom,gcc. If that was missing intentionally, it is fine assuming
> you implement the rest of comments.

With the description addition that you suggested above, should I keep
this file in clocks/ after all?

Konrad

Re: [PATCH v2 1/3] dt-bindings: clock: qcom: Add SM8750 GPU clocks

[Krzysztof Kozlowski]

On 25/07/2025 11:23, Konrad Dybcio wrote:
> On 7/24/25 4:42 PM, Krzysztof Kozlowski wrote:
>> On 24/07/2025 12:53, Konrad Dybcio wrote:
>>> On 7/24/25 10:18 AM, Krzysztof Kozlowski wrote:
>>>> On Wed, Jul 23, 2025 at 10:38:48PM +0200, Konrad Dybcio wrote:
>>>>> From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
>>>>>
>>>>> The SM8750 features a "traditional" GPU_CC block, much of which is
>>>>> controlled through the GMU microcontroller. Additionally, there's
>>>>> an separate GX_CC block, where the GX GDSC is moved.
>>>>>
>>>>> Add bindings to accommodate for that.
>>>>>
>>>>> Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
>>>>> ---
> 
> [...]
> 
>> Yes, qcom,gcc. If that was missing intentionally, it is fine assuming
>> you implement the rest of comments.
> 
> With the description addition that you suggested above, should I keep
> this file in clocks/ after all?

Good point, I don't know, this is unusual case. The question is whether
there could be user of this binding/DTS, which would need/use
clock-cells? If none of possible users could use it as a clock
controller, I think it is not a clock controller from how SW sees it.
IOW, it does not matter what it is fully (in bigger picture) if it
cannot be used in that way.

If all users of the binding can use it only as power domain provided, I
would move it to power with rest of power domains. Also rename the node
name to power-controller or power-domain.

Best regards,
Krzysztof

Re: [PATCH v2 1/3] dt-bindings: clock: qcom: Add SM8750 GPU clocks

[Konrad Dybcio]

On 7/28/25 7:05 AM, Krzysztof Kozlowski wrote:
> On 25/07/2025 11:23, Konrad Dybcio wrote:
>> On 7/24/25 4:42 PM, Krzysztof Kozlowski wrote:
>>> On 24/07/2025 12:53, Konrad Dybcio wrote:
>>>> On 7/24/25 10:18 AM, Krzysztof Kozlowski wrote:
>>>>> On Wed, Jul 23, 2025 at 10:38:48PM +0200, Konrad Dybcio wrote:
>>>>>> From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
>>>>>>
>>>>>> The SM8750 features a "traditional" GPU_CC block, much of which is
>>>>>> controlled through the GMU microcontroller. Additionally, there's
>>>>>> an separate GX_CC block, where the GX GDSC is moved.
>>>>>>
>>>>>> Add bindings to accommodate for that.
>>>>>>
>>>>>> Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
>>>>>> ---
>>
>> [...]
>>
>>> Yes, qcom,gcc. If that was missing intentionally, it is fine assuming
>>> you implement the rest of comments.
>>
>> With the description addition that you suggested above, should I keep
>> this file in clocks/ after all?
> 
> Good point, I don't know, this is unusual case. The question is whether
> there could be user of this binding/DTS, which would need/use
> clock-cells? If none of possible users could use it as a clock
> controller, I think it is not a clock controller from how SW sees it.
> IOW, it does not matter what it is fully (in bigger picture) if it
> cannot be used in that way.
> 
> If all users of the binding can use it only as power domain provided, I
> would move it to power with rest of power domains. Also rename the node
> name to power-controller or power-domain.

The hardware block can be accessed from the CPU directly, skipping
the microcontroller (although that is undesirable and the only "real" use
for it I can think about is someone trying to get rid of a blob).

I can add clock/reset-cells to describe the hardware accurately, but
the Linux driver(s - this is a block that exists on many >=2024 SoCs as
you may imagine) will continue to only provide a single power domain.
With that, I think clock/ makes sense, as this is essentially the same
hardware template as other instances of QCOM_*CC

Konrad

Re: [PATCH v2 1/3] dt-bindings: clock: qcom: Add SM8750 GPU clocks

[Konrad Dybcio]

On 7/24/25 10:18 AM, Krzysztof Kozlowski wrote:
> On Wed, Jul 23, 2025 at 10:38:48PM +0200, Konrad Dybcio wrote:
>> From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
>>
>> The SM8750 features a "traditional" GPU_CC block, much of which is
>> controlled through the GMU microcontroller. Additionally, there's
>> an separate GX_CC block, where the GX GDSC is moved.
>>
>> Add bindings to accommodate for that.
>>
>> Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
>> ---
>>  .../bindings/clock/qcom,sm8450-gpucc.yaml          |  5 ++
>>  .../bindings/clock/qcom,sm8750-gxcc.yaml           | 61 ++++++++++++++++++++++
>>  include/dt-bindings/clock/qcom,sm8750-gpucc.h      | 53 +++++++++++++++++++
>>  3 files changed, 119 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/clock/qcom,sm8450-gpucc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm8450-gpucc.yaml
>> index 02968632fb3af34d6b3983a6a24aa742db1d59b1..d1b3557ab344b071d16dba4d5c6a267b7ab70573 100644
>> --- a/Documentation/devicetree/bindings/clock/qcom,sm8450-gpucc.yaml
>> +++ b/Documentation/devicetree/bindings/clock/qcom,sm8450-gpucc.yaml
>> @@ -20,6 +20,7 @@ description: |
>>      include/dt-bindings/clock/qcom,sm8550-gpucc.h
>>      include/dt-bindings/reset/qcom,sm8450-gpucc.h
>>      include/dt-bindings/reset/qcom,sm8650-gpucc.h
>> +    include/dt-bindings/reset/qcom,sm8750-gpucc.h
>>      include/dt-bindings/reset/qcom,x1e80100-gpucc.h
>>  
>>  properties:
>> @@ -31,6 +32,7 @@ properties:
>>        - qcom,sm8475-gpucc
>>        - qcom,sm8550-gpucc
>>        - qcom,sm8650-gpucc
>> +      - qcom,sm8750-gpucc
>>        - qcom,x1e80100-gpucc
>>        - qcom,x1p42100-gpucc
>>  
>> @@ -40,6 +42,9 @@ properties:
>>        - description: GPLL0 main branch source
>>        - description: GPLL0 div branch source
>>  
>> +  power-domains:
>> +    maxItems: 1
> 
> This should be a different binding or you need to restrict other
> variants here.

Actually looks like this is the same case as the recent videocc changes
(15 year old technical debt catching up to us..)

I'll send a mass-fixup for this.

Some platforms require 2 and some require 3 entries here. Do I have to
restrict them very specifically, or can I do:

power-domains:
  description:
    Power domains required for the clock controller to operate
  minItems: 2
  items:
    - description: CX power domain
    - description: MX power domain
    - description: MXC power domain

?

Konrad

Re: [PATCH v2 1/3] dt-bindings: clock: qcom: Add SM8750 GPU clocks

[Krzysztof Kozlowski]

On 25/07/2025 11:30, Konrad Dybcio wrote:
>>>  
>>> @@ -40,6 +42,9 @@ properties:
>>>        - description: GPLL0 main branch source
>>>        - description: GPLL0 div branch source
>>>  
>>> +  power-domains:
>>> +    maxItems: 1
>>
>> This should be a different binding or you need to restrict other
>> variants here.
> 
> Actually looks like this is the same case as the recent videocc changes
> (15 year old technical debt catching up to us..)
> 
> I'll send a mass-fixup for this.
> 
> Some platforms require 2 and some require 3 entries here. Do I have to
> restrict them very specifically, or can I do:
> 
> power-domains:
>   description:
>     Power domains required for the clock controller to operate
>   minItems: 2
>   items:
>     - description: CX power domain
>     - description: MX power domain
>     - description: MXC power domain
> 
> ?

This is correct and should be in top level, but you still need to
restrict them per each variant (minItems: 3 or maxItems: 2).

> 
> Konrad


Best regards,
Krzysztof

Re: [PATCH v2 1/3] dt-bindings: clock: qcom: Add SM8750 GPU clocks

[Konrad Dybcio]

On 7/28/25 7:01 AM, Krzysztof Kozlowski wrote:
> On 25/07/2025 11:30, Konrad Dybcio wrote:
>>>>  
>>>> @@ -40,6 +42,9 @@ properties:
>>>>        - description: GPLL0 main branch source
>>>>        - description: GPLL0 div branch source
>>>>  
>>>> +  power-domains:
>>>> +    maxItems: 1
>>>
>>> This should be a different binding or you need to restrict other
>>> variants here.
>>
>> Actually looks like this is the same case as the recent videocc changes
>> (15 year old technical debt catching up to us..)
>>
>> I'll send a mass-fixup for this.
>>
>> Some platforms require 2 and some require 3 entries here. Do I have to
>> restrict them very specifically, or can I do:
>>
>> power-domains:
>>   description:
>>     Power domains required for the clock controller to operate
>>   minItems: 2
>>   items:
>>     - description: CX power domain
>>     - description: MX power domain
>>     - description: MXC power domain
>>
>> ?
> 
> This is correct and should be in top level, but you still need to
> restrict them per each variant (minItems: 3 or maxItems: 2).

So I was happy about how simple it was, until I realized we also need
to poke the VDD_GFX domain. It does however not necessarily exist on
all platforms and I don't want the binding to become a spaghetti of ifs..

CX & MX is present on all(?) platforms
GFX & MXC's (any combination of those, unfortunately) presence varies

Is there anything better I can do than creating a separate case for:

* CX_MX
* CX_MX_GFX
* CX_MX_MXC
* CX_MX_GFX_MXC

?

Konrad

Re: [PATCH v2 1/3] dt-bindings: clock: qcom: Add SM8750 GPU clocks

[Konrad Dybcio]

On 7/28/25 1:02 PM, Konrad Dybcio wrote:
> On 7/28/25 7:01 AM, Krzysztof Kozlowski wrote:
>> On 25/07/2025 11:30, Konrad Dybcio wrote:
>>>>>  
>>>>> @@ -40,6 +42,9 @@ properties:
>>>>>        - description: GPLL0 main branch source
>>>>>        - description: GPLL0 div branch source
>>>>>  
>>>>> +  power-domains:
>>>>> +    maxItems: 1
>>>>
>>>> This should be a different binding or you need to restrict other
>>>> variants here.
>>>
>>> Actually looks like this is the same case as the recent videocc changes
>>> (15 year old technical debt catching up to us..)
>>>
>>> I'll send a mass-fixup for this.
>>>
>>> Some platforms require 2 and some require 3 entries here. Do I have to
>>> restrict them very specifically, or can I do:
>>>
>>> power-domains:
>>>   description:
>>>     Power domains required for the clock controller to operate
>>>   minItems: 2
>>>   items:
>>>     - description: CX power domain
>>>     - description: MX power domain
>>>     - description: MXC power domain
>>>
>>> ?
>>
>> This is correct and should be in top level, but you still need to
>> restrict them per each variant (minItems: 3 or maxItems: 2).
> 
> So I was happy about how simple it was, until I realized we also need
> to poke the VDD_GFX domain. It does however not necessarily exist on
> all platforms and I don't want the binding to become a spaghetti of ifs..
> 
> CX & MX is present on all(?) platforms
> GFX & MXC's (any combination of those, unfortunately) presence varies
> 
> Is there anything better I can do than creating a separate case for:
> 
> * CX_MX
> * CX_MX_GFX
> * CX_MX_MXC
> * CX_MX_GFX_MXC

Doesn't seem like it, turned out this wasn't as terrible a mess as
I had imagined..

Konrad

Re: [PATCH v2 1/3] dt-bindings: clock: qcom: Add SM8750 GPU clocks

[Krzysztof Kozlowski]

On 23/07/2025 22:38, Konrad Dybcio wrote:
> +    };
> +...
> diff --git a/include/dt-bindings/clock/qcom,sm8750-gpucc.h b/include/dt-bindings/clock/qcom,sm8750-gpucc.h
> new file mode 100644
> index 0000000000000000000000000000000000000000..98e2f5df78740bf298c6b1065972d7e58ee81713
> --- /dev/null
> +++ b/include/dt-bindings/clock/qcom,sm8750-gpucc.h
> @@ -0,0 +1,53 @@
> +/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
> +/*
> + * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.


This needs fixes... it's some sudden move of removal of copyright dates
everywhere across Qualcomm. Please don't use internal rules outside of
Qualcomm projects.

Best regards,
Krzysztof

[PATCH v2 2/3] clk: qcom: Add a driver for SM8750 GPU clocks

[Konrad Dybcio]

From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>

The SM8750's GFX hardware is largely clocked by two domains: GPU_CC
(which is very similar to the ones on previous SoCs) and GX_CC (where
the GX GDSC now resides).

As usual, the GMU drives most of the clocks and Linux only manages a
subset required to boot it (and the SMMU) up.

Add a driver to accommodate for that.

Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
---
 drivers/clk/qcom/Kconfig        |   9 +
 drivers/clk/qcom/Makefile       |   1 +
 drivers/clk/qcom/gpucc-sm8750.c | 524 ++++++++++++++++++++++++++++++++++++++++
 3 files changed, 534 insertions(+)

diff --git a/drivers/clk/qcom/Kconfig b/drivers/clk/qcom/Kconfig
index 36d6e6e1e7f0162d53f02f39125f4593517e0dba..9f430fcee3ef4e44dbf8f6277d7bf85888dedd59 100644
--- a/drivers/clk/qcom/Kconfig
+++ b/drivers/clk/qcom/Kconfig
@@ -1295,6 +1295,15 @@ config SM_GPUCC_8650
 	  Say Y if you want to support graphics controller devices and
 	  functionality such as 3D graphics.
 
+config SM_GPUCC_8750
+	tristate "SM8750 Graphics Clock Controller"
+	depends on ARM64 || COMPILE_TEST
+	select SM_GCC_8750
+	help
+	  Support for the graphics clock controller on SM8750 devices.
+	  Say Y if you want to support graphics controller devices and
+	  functionality such as 3D graphics.
+
 config SM_LPASSCC_6115
 	tristate "SM6115 Low Power Audio Subsystem (LPASS) Clock Controller"
 	depends on ARM64 || COMPILE_TEST
diff --git a/drivers/clk/qcom/Makefile b/drivers/clk/qcom/Makefile
index ab59434338bb6d6f49b0af94ff0f85cb386a16db..b55f373d71e136eaa279ed3ea8e8714119ecfd70 100644
--- a/drivers/clk/qcom/Makefile
+++ b/drivers/clk/qcom/Makefile
@@ -161,6 +161,7 @@ obj-$(CONFIG_SM_GPUCC_8350) += gpucc-sm8350.o
 obj-$(CONFIG_SM_GPUCC_8450) += gpucc-sm8450.o
 obj-$(CONFIG_SM_GPUCC_8550) += gpucc-sm8550.o
 obj-$(CONFIG_SM_GPUCC_8650) += gpucc-sm8650.o
+obj-$(CONFIG_SM_GPUCC_8750) += gpucc-sm8750.o
 obj-$(CONFIG_SM_LPASSCC_6115) += lpasscc-sm6115.o
 obj-$(CONFIG_SM_TCSRCC_8550) += tcsrcc-sm8550.o
 obj-$(CONFIG_SM_TCSRCC_8650) += tcsrcc-sm8650.o
diff --git a/drivers/clk/qcom/gpucc-sm8750.c b/drivers/clk/qcom/gpucc-sm8750.c
new file mode 100644
index 0000000000000000000000000000000000000000..ea8e5a87778d87745f29b115185ba7b0fa4c43e1
--- /dev/null
+++ b/drivers/clk/qcom/gpucc-sm8750.c
@@ -0,0 +1,524 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
+ */
+#include <linux/clk-provider.h>
+#include <linux/mod_devicetable.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+
+#include <dt-bindings/clock/qcom,sm8750-gpucc.h>
+
+#include "clk-alpha-pll.h"
+#include "clk-branch.h"
+#include "clk-rcg.h"
+#include "clk-regmap.h"
+#include "clk-regmap-divider.h"
+#include "clk-regmap-mux.h"
+#include "gdsc.h"
+#include "reset.h"
+
+enum {
+	DT_BI_TCXO,
+	DT_GPLL0_OUT_MAIN,
+	DT_GPLL0_OUT_MAIN_DIV,
+};
+
+enum {
+	P_BI_TCXO,
+	P_GPLL0_OUT_MAIN,
+	P_GPLL0_OUT_MAIN_DIV,
+	P_GPU_CC_PLL0_OUT_EVEN,
+	P_GPU_CC_PLL0_OUT_MAIN,
+	P_GPU_CC_PLL0_OUT_ODD,
+};
+
+static const struct pll_vco taycan_elu_vco[] = {
+	{ 249600000, 2500000000, 0 },
+};
+
+static const struct alpha_pll_config gpu_cc_pll0_config = {
+	.l = 0x34,
+	.alpha = 0x1555,
+	.config_ctl_val = 0x19660387,
+	.config_ctl_hi_val = 0x098060a0,
+	.config_ctl_hi1_val = 0xb416cb20,
+	.user_ctl_val = 0x00000400,
+	.user_ctl_hi_val = 0x00000002,
+};
+
+static struct clk_alpha_pll gpu_cc_pll0 = {
+	.offset = 0x0,
+	.config = &gpu_cc_pll0_config,
+	.vco_table = taycan_elu_vco,
+	.num_vco = ARRAY_SIZE(taycan_elu_vco),
+	.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_TAYCAN_ELU],
+	.clkr = {
+		.hw.init = &(const struct clk_init_data) {
+			.name = "gpu_cc_pll0",
+			.parent_data = &(const struct clk_parent_data) {
+				.index = DT_BI_TCXO,
+			},
+			.num_parents = 1,
+			.ops = &clk_alpha_pll_taycan_elu_ops,
+		},
+	},
+};
+
+static const struct clk_div_table post_div_table_gpu_cc_pll0_out_even[] = {
+	{ 0x1, 2 },
+	{ }
+};
+
+static struct clk_alpha_pll_postdiv gpu_cc_pll0_out_even = {
+	.offset = 0x0,
+	.post_div_shift = 10,
+	.post_div_table = post_div_table_gpu_cc_pll0_out_even,
+	.num_post_div = ARRAY_SIZE(post_div_table_gpu_cc_pll0_out_even),
+	.width = 4,
+	.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_TAYCAN_ELU],
+	.clkr.hw.init = &(const struct clk_init_data) {
+		.name = "gpu_cc_pll0_out_even",
+		.parent_hws = (const struct clk_hw*[]) {
+			&gpu_cc_pll0.clkr.hw,
+		},
+		.num_parents = 1,
+		.flags = CLK_SET_RATE_PARENT,
+		.ops = &clk_alpha_pll_postdiv_taycan_elu_ops,
+	},
+};
+
+static const struct parent_map gpu_cc_parent_map_1[] = {
+	{ P_BI_TCXO, 0 },
+	{ P_GPU_CC_PLL0_OUT_MAIN, 1 },
+	{ P_GPU_CC_PLL0_OUT_EVEN, 2 },
+	{ P_GPU_CC_PLL0_OUT_ODD, 3 },
+	{ P_GPLL0_OUT_MAIN, 5 },
+	{ P_GPLL0_OUT_MAIN_DIV, 6 },
+};
+
+static const struct clk_parent_data gpu_cc_parent_data_1[] = {
+	{ .fw_name = "bi_tcxo" },
+	{ .hw = &gpu_cc_pll0.clkr.hw },
+	{ .hw = &gpu_cc_pll0_out_even.clkr.hw },
+	{ .hw = &gpu_cc_pll0.clkr.hw },
+	{ .fw_name = "gpll0_out_main" },
+	{ .fw_name = "gpll0_out_main_div" },
+};
+
+static const struct freq_tbl ftbl_gpu_cc_gmu_clk_src[] = {
+	F(19200000, P_BI_TCXO, 1, 0, 0),
+	F(500000000, P_GPU_CC_PLL0_OUT_EVEN, 1, 0, 0),
+	F(650000000, P_GPU_CC_PLL0_OUT_EVEN, 1, 0, 0),
+	F(687500000, P_GPU_CC_PLL0_OUT_EVEN, 1, 0, 0),
+	{ }
+};
+
+static struct clk_rcg2 gpu_cc_gmu_clk_src = {
+	.cmd_rcgr = 0x9318,
+	.mnd_width = 0,
+	.hid_width = 5,
+	.parent_map = gpu_cc_parent_map_1,
+	.freq_tbl = ftbl_gpu_cc_gmu_clk_src,
+	.clkr.hw.init = &(const struct clk_init_data) {
+		.name = "gpu_cc_gmu_clk_src",
+		.parent_data = gpu_cc_parent_data_1,
+		.num_parents = ARRAY_SIZE(gpu_cc_parent_data_1),
+		.flags = CLK_SET_RATE_PARENT,
+		.ops = &clk_rcg2_shared_ops,
+	},
+};
+
+static const struct freq_tbl ftbl_gpu_cc_hub_clk_src[] = {
+	F(200000000, P_GPLL0_OUT_MAIN, 3, 0, 0),
+	F(300000000, P_GPLL0_OUT_MAIN, 2, 0, 0),
+	F(400000000, P_GPLL0_OUT_MAIN, 1.5, 0, 0),
+	{ }
+};
+
+static struct clk_rcg2 gpu_cc_hub_clk_src = {
+	.cmd_rcgr = 0x93ec,
+	.mnd_width = 0,
+	.hid_width = 5,
+	.parent_map = gpu_cc_parent_map_1,
+	.freq_tbl = ftbl_gpu_cc_hub_clk_src,
+	.clkr.hw.init = &(const struct clk_init_data) {
+		.name = "gpu_cc_hub_clk_src",
+		.parent_data = gpu_cc_parent_data_1,
+		.num_parents = ARRAY_SIZE(gpu_cc_parent_data_1),
+		.flags = CLK_SET_RATE_PARENT,
+		.ops = &clk_rcg2_shared_ops,
+	},
+};
+
+static struct clk_regmap_div gpu_cc_hub_div_clk_src = {
+	.reg = 0x942c,
+	.shift = 0,
+	.width = 4,
+	.clkr.hw.init = &(const struct clk_init_data) {
+		.name = "gpu_cc_hub_div_clk_src",
+		.parent_hws = (const struct clk_hw*[]) {
+			&gpu_cc_hub_clk_src.clkr.hw,
+		},
+		.num_parents = 1,
+		.flags = CLK_SET_RATE_PARENT,
+		.ops = &clk_regmap_div_ro_ops,
+	},
+};
+
+static struct clk_branch gpu_cc_ahb_clk = {
+	.halt_reg = 0x90bc,
+	.halt_check = BRANCH_HALT_DELAY,
+	.clkr = {
+		.enable_reg = 0x90bc,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "gpu_cc_ahb_clk",
+			.parent_hws = (const struct clk_hw*[]) {
+				&gpu_cc_hub_div_clk_src.clkr.hw,
+			},
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch gpu_cc_cx_accu_shift_clk = {
+	.halt_reg = 0x910c,
+	.halt_check = BRANCH_HALT_VOTED,
+	.clkr = {
+		.enable_reg = 0x910c,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "gpu_cc_cx_accu_shift_clk",
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch gpu_cc_cx_gmu_clk = {
+	.halt_reg = 0x90d4,
+	.halt_check = BRANCH_HALT_VOTED,
+	.clkr = {
+		.enable_reg = 0x90d4,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "gpu_cc_cx_gmu_clk",
+			.parent_hws = (const struct clk_hw*[]) {
+				&gpu_cc_gmu_clk_src.clkr.hw,
+			},
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
+			.ops = &clk_branch2_aon_ops,
+		},
+	},
+};
+
+static struct clk_branch gpu_cc_cxo_clk = {
+	.halt_reg = 0x90e4,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0x90e4,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "gpu_cc_cxo_clk",
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch gpu_cc_demet_clk = {
+	.halt_reg = 0x9010,
+	.halt_check = BRANCH_HALT_VOTED,
+	.clkr = {
+		.enable_reg = 0x9010,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "gpu_cc_demet_clk",
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch gpu_cc_dpm_clk = {
+	.halt_reg = 0x9110,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0x9110,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "gpu_cc_dpm_clk",
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch gpu_cc_freq_measure_clk = {
+	.halt_reg = 0x900c,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0x900c,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "gpu_cc_freq_measure_clk",
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch gpu_cc_gx_accu_shift_clk = {
+	.halt_reg = 0x9070,
+	.halt_check = BRANCH_HALT_VOTED,
+	.clkr = {
+		.enable_reg = 0x9070,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "gpu_cc_gx_accu_shift_clk",
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch gpu_cc_gx_gmu_clk = {
+	.halt_reg = 0x9060,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0x9060,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "gpu_cc_gx_gmu_clk",
+			.parent_hws = (const struct clk_hw*[]) {
+				&gpu_cc_gmu_clk_src.clkr.hw,
+			},
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch gpu_cc_hlos1_vote_gpu_smmu_clk = {
+	.halt_reg = 0x7000,
+	.halt_check = BRANCH_HALT_VOTED,
+	.clkr = {
+		.enable_reg = 0x7000,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "gpu_cc_hlos1_vote_gpu_smmu_clk",
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch gpu_cc_hub_aon_clk = {
+	.halt_reg = 0x93e8,
+	.halt_check = BRANCH_HALT_VOTED,
+	.clkr = {
+		.enable_reg = 0x93e8,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "gpu_cc_hub_aon_clk",
+			.parent_hws = (const struct clk_hw*[]) {
+				&gpu_cc_hub_clk_src.clkr.hw,
+			},
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
+			.ops = &clk_branch2_aon_ops,
+		},
+	},
+};
+
+static struct clk_branch gpu_cc_hub_cx_int_clk = {
+	.halt_reg = 0x90e8,
+	.halt_check = BRANCH_HALT_VOTED,
+	.clkr = {
+		.enable_reg = 0x90e8,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "gpu_cc_hub_cx_int_clk",
+			.parent_hws = (const struct clk_hw*[]) {
+				&gpu_cc_hub_clk_src.clkr.hw,
+			},
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
+			.ops = &clk_branch2_aon_ops,
+		},
+	},
+};
+
+static struct clk_branch gpu_cc_memnoc_gfx_clk = {
+	.halt_reg = 0x90f4,
+	.halt_check = BRANCH_HALT_VOTED,
+	.clkr = {
+		.enable_reg = 0x90f4,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "gpu_cc_memnoc_gfx_clk",
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct gdsc gpu_cc_cx_gdsc = {
+	.gdscr = 0x9080,
+	.gds_hw_ctrl = 0x9094,
+	.en_rest_wait_val = 0x2,
+	.en_few_wait_val = 0x2,
+	.clk_dis_wait_val = 0x8,
+	.pd = {
+		.name = "gpu_cc_cx_gdsc",
+	},
+	.pwrsts = PWRSTS_OFF_ON,
+	.flags = RETAIN_FF_ENABLE | VOTABLE,
+};
+
+static struct clk_regmap *gpu_cc_sm8750_clocks[] = {
+	[GPU_CC_AHB_CLK] = &gpu_cc_ahb_clk.clkr,
+	[GPU_CC_CX_ACCU_SHIFT_CLK] = &gpu_cc_cx_accu_shift_clk.clkr,
+	[GPU_CC_CX_GMU_CLK] = &gpu_cc_cx_gmu_clk.clkr,
+	[GPU_CC_CXO_CLK] = &gpu_cc_cxo_clk.clkr,
+	[GPU_CC_DEMET_CLK] = &gpu_cc_demet_clk.clkr,
+	[GPU_CC_DPM_CLK] = &gpu_cc_dpm_clk.clkr,
+	[GPU_CC_FREQ_MEASURE_CLK] = &gpu_cc_freq_measure_clk.clkr,
+	[GPU_CC_GMU_CLK_SRC] = &gpu_cc_gmu_clk_src.clkr,
+	[GPU_CC_GX_ACCU_SHIFT_CLK] = &gpu_cc_gx_accu_shift_clk.clkr,
+	[GPU_CC_GX_GMU_CLK] = &gpu_cc_gx_gmu_clk.clkr,
+	[GPU_CC_HLOS1_VOTE_GPU_SMMU_CLK] = &gpu_cc_hlos1_vote_gpu_smmu_clk.clkr,
+	[GPU_CC_HUB_AON_CLK] = &gpu_cc_hub_aon_clk.clkr,
+	[GPU_CC_HUB_CLK_SRC] = &gpu_cc_hub_clk_src.clkr,
+	[GPU_CC_HUB_CX_INT_CLK] = &gpu_cc_hub_cx_int_clk.clkr,
+	[GPU_CC_HUB_DIV_CLK_SRC] = &gpu_cc_hub_div_clk_src.clkr,
+	[GPU_CC_MEMNOC_GFX_CLK] = &gpu_cc_memnoc_gfx_clk.clkr,
+	[GPU_CC_PLL0] = &gpu_cc_pll0.clkr,
+	[GPU_CC_PLL0_OUT_EVEN] = &gpu_cc_pll0_out_even.clkr,
+};
+
+static struct gdsc *gpu_cc_sm8750_gdscs[] = {
+	[GPU_CC_CX_GDSC] = &gpu_cc_cx_gdsc,
+};
+
+static const struct qcom_reset_map gpu_cc_sm8750_resets[] = {
+	[GPU_CC_GPU_CC_XO_BCR] = { 0x9000 },
+	[GPU_CC_GPU_CC_GX_BCR] = { 0x905c },
+	[GPU_CC_GPU_CC_CX_BCR] = { 0x907c },
+	[GPU_CC_GPU_CC_GMU_BCR] = { 0x9314 },
+	[GPU_CC_GPU_CC_CB_BCR] = { 0x93a0 },
+	[GPU_CC_GPU_CC_FAST_HUB_BCR] = { 0x93e4 },
+};
+
+static const struct regmap_config gpu_cc_sm8750_regmap_config = {
+	.reg_bits = 32,
+	.reg_stride = 4,
+	.val_bits = 32,
+	.max_register = 0x9800,
+	.fast_io = true,
+};
+
+static struct clk_alpha_pll *gpu_cc_alpha_plls[] = {
+	&gpu_cc_pll0,
+};
+
+static u32 gpu_cc_sm8750_critical_cbcrs[] = {
+	0x9004, /* GPU_CC_RSCC_XO_AON_CLK */
+	0x9008, /* GPU_CC_CXO_AON_CLK */
+	0x9064, /* GPU_CC_GX_AHB_FF_CLK */
+	0x90cc, /* GPU_CC_SLEEP_CLK */
+	0x93a4, /* GPU_CC_CB_CLK */
+	0x93a8, /* GPU_CC_RSCC_HUB_AON_CLK */
+};
+
+static struct qcom_cc_driver_data gpu_cc_sm8750_driver_data = {
+	.alpha_plls = gpu_cc_alpha_plls,
+	.num_alpha_plls = ARRAY_SIZE(gpu_cc_alpha_plls),
+	.clk_cbcrs = gpu_cc_sm8750_critical_cbcrs,
+	.num_clk_cbcrs = ARRAY_SIZE(gpu_cc_sm8750_critical_cbcrs),
+};
+
+static const struct qcom_cc_desc gpu_cc_sm8750_desc = {
+	.config = &gpu_cc_sm8750_regmap_config,
+	.clks = gpu_cc_sm8750_clocks,
+	.num_clks = ARRAY_SIZE(gpu_cc_sm8750_clocks),
+	.resets = gpu_cc_sm8750_resets,
+	.num_resets = ARRAY_SIZE(gpu_cc_sm8750_resets),
+	.gdscs = gpu_cc_sm8750_gdscs,
+	.num_gdscs = ARRAY_SIZE(gpu_cc_sm8750_gdscs),
+	.driver_data = &gpu_cc_sm8750_driver_data,
+};
+
+static const struct of_device_id gpu_cc_sm8750_match_table[] = {
+	{ .compatible = "qcom,sm8750-gpucc" },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, gpu_cc_sm8750_match_table);
+
+static int gpu_cc_sm8750_probe(struct platform_device *pdev)
+{
+	return qcom_cc_probe(pdev, &gpu_cc_sm8750_desc);
+}
+
+static struct platform_driver gpu_cc_sm8750_driver = {
+	.probe = gpu_cc_sm8750_probe,
+	.driver = {
+		.name = "sm8750-gpucc",
+		.of_match_table = gpu_cc_sm8750_match_table,
+	},
+};
+module_platform_driver(gpu_cc_sm8750_driver);
+
+static struct gdsc gx_cc_gx_gdsc = {
+	.gdscr = 0x4024,
+	.en_rest_wait_val = 0x2,
+	.en_few_wait_val = 0x2,
+	.clk_dis_wait_val = 0xf,
+	.pd = {
+		.name = "gx_cc_gx_gdsc",
+		.power_on = gdsc_gx_do_nothing_enable,
+	},
+	.pwrsts = PWRSTS_OFF_ON,
+	.flags = POLL_CFG_GDSCR | RETAIN_FF_ENABLE,
+};
+
+static struct gdsc *gx_cc_gdscs[] = {
+	[GX_CC_GX_GDSC] = &gx_cc_gx_gdsc,
+};
+
+static const struct regmap_config gx_cc_regmap_config = {
+	.reg_bits = 32,
+	.reg_stride = 4,
+	.val_bits = 32,
+	.max_register = 0x6000,
+	.fast_io = true,
+};
+
+static const struct qcom_cc_desc gx_cc_sm8750_desc = {
+	.config = &gx_cc_regmap_config,
+	.gdscs = gx_cc_gdscs,
+	.num_gdscs = ARRAY_SIZE(gx_cc_gdscs),
+	.use_rpm = true,
+};
+
+static const struct of_device_id gx_cc_sm8750_match_table[] = {
+	{ .compatible = "qcom,sm8750-gxcc" },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, gx_cc_sm8750_match_table);
+
+static int gx_cc_sm8750_probe(struct platform_device *pdev)
+{
+	return qcom_cc_probe(pdev, &gx_cc_sm8750_desc);
+}
+
+static struct platform_driver gx_cc_sm8750_driver = {
+	.probe = gx_cc_sm8750_probe,
+	.driver = {
+		.name = "gx_cc-sm8750",
+		.of_match_table = gx_cc_sm8750_match_table,
+	},
+};
+module_platform_driver(gx_cc_sm8750_driver);
+
+MODULE_DESCRIPTION("QTI GPU_CC SM8750 Driver");
+MODULE_LICENSE("GPL");

-- 
2.50.1

Re: [PATCH v2 2/3] clk: qcom: Add a driver for SM8750 GPU clocks

[kernel test robot]

Hi Konrad,

kernel test robot noticed the following build errors:

[auto build test ERROR on 0be23810e32e6d0a17df7c0ebad895ba2c210fc4]

url:    https://github.com/intel-lab-lkp/linux/commits/Konrad-Dybcio/dt-bindings-clock-qcom-Add-SM8750-GPU-clocks/20250724-044303
base:   0be23810e32e6d0a17df7c0ebad895ba2c210fc4
patch link:    https://lore.kernel.org/r/20250723-topic-8750_gpucc-v2-2-56c93b84c390%40oss.qualcomm.com
patch subject: [PATCH v2 2/3] clk: qcom: Add a driver for SM8750 GPU clocks
config: s390-allmodconfig (https://download.01.org/0day-ci/archive/20250726/202507261830.IirBJ9dS-lkp@intel.com/config)
compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250726/202507261830.IirBJ9dS-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202507261830.IirBJ9dS-lkp@intel.com/

All errors (new ones prefixed by >>):

>> drivers/clk/qcom/gpucc-sm8750.c:521:1: error: redefinition of '__inittest'
     521 | module_platform_driver(gx_cc_sm8750_driver);
         | ^
   include/linux/platform_device.h:292:2: note: expanded from macro 'module_platform_driver'
     292 |         module_driver(__platform_driver, platform_driver_register, \
         |         ^
   include/linux/device/driver.h:261:3: note: expanded from macro 'module_driver'
     261 | } \
         |   ^
   include/linux/module.h:132:42: note: expanded from macro '\
   module_init'
     132 |         static inline initcall_t __maybe_unused __inittest(void)                \
         |                                                 ^
   drivers/clk/qcom/gpucc-sm8750.c:469:1: note: previous definition is here
     469 | module_platform_driver(gpu_cc_sm8750_driver);
         | ^
   include/linux/platform_device.h:292:2: note: expanded from macro 'module_platform_driver'
     292 |         module_driver(__platform_driver, platform_driver_register, \
         |         ^
   include/linux/device/driver.h:261:3: note: expanded from macro 'module_driver'
     261 | } \
         |   ^
   include/linux/module.h:132:42: note: expanded from macro '\
   module_init'
     132 |         static inline initcall_t __maybe_unused __inittest(void)                \
         |                                                 ^
>> drivers/clk/qcom/gpucc-sm8750.c:521:1: error: redefinition of 'init_module'
     521 | module_platform_driver(gx_cc_sm8750_driver);
         | ^
   include/linux/platform_device.h:292:2: note: expanded from macro 'module_platform_driver'
     292 |         module_driver(__platform_driver, platform_driver_register, \
         |         ^
   include/linux/device/driver.h:261:3: note: expanded from macro 'module_driver'
     261 | } \
         |   ^
   include/linux/module.h:134:6: note: expanded from macro '\
   module_init'
     134 |         int init_module(void) __copy(initfn)                    \
         |             ^
   drivers/clk/qcom/gpucc-sm8750.c:469:1: note: previous definition is here
     469 | module_platform_driver(gpu_cc_sm8750_driver);
         | ^
   include/linux/platform_device.h:292:2: note: expanded from macro 'module_platform_driver'
     292 |         module_driver(__platform_driver, platform_driver_register, \
         |         ^
   include/linux/device/driver.h:261:3: note: expanded from macro 'module_driver'
     261 | } \
         |   ^
   include/linux/module.h:134:6: note: expanded from macro '\
   module_init'
     134 |         int init_module(void) __copy(initfn)                    \
         |             ^
>> drivers/clk/qcom/gpucc-sm8750.c:521:1: error: redefinition of '__exittest'
     521 | module_platform_driver(gx_cc_sm8750_driver);
         | ^
   include/linux/platform_device.h:292:2: note: expanded from macro 'module_platform_driver'
     292 |         module_driver(__platform_driver, platform_driver_register, \
         |         ^
   include/linux/device/driver.h:266:3: note: expanded from macro 'module_driver'
     266 | } \
         |   ^
   include/linux/module.h:140:42: note: expanded from macro '\
   module_exit'
     140 |         static inline exitcall_t __maybe_unused __exittest(void)                \
         |                                                 ^
   drivers/clk/qcom/gpucc-sm8750.c:469:1: note: previous definition is here
     469 | module_platform_driver(gpu_cc_sm8750_driver);
         | ^
   include/linux/platform_device.h:292:2: note: expanded from macro 'module_platform_driver'
     292 |         module_driver(__platform_driver, platform_driver_register, \
         |         ^
   include/linux/device/driver.h:266:3: note: expanded from macro 'module_driver'
     266 | } \
         |   ^
   include/linux/module.h:140:42: note: expanded from macro '\
   module_exit'
     140 |         static inline exitcall_t __maybe_unused __exittest(void)                \
         |                                                 ^
>> drivers/clk/qcom/gpucc-sm8750.c:521:1: error: redefinition of 'cleanup_module'
     521 | module_platform_driver(gx_cc_sm8750_driver);
         | ^
   include/linux/platform_device.h:292:2: note: expanded from macro 'module_platform_driver'
     292 |         module_driver(__platform_driver, platform_driver_register, \
         |         ^
   include/linux/device/driver.h:266:3: note: expanded from macro 'module_driver'
     266 | } \
         |   ^
   include/linux/module.h:142:7: note: expanded from macro '\
   module_exit'
     142 |         void cleanup_module(void) __copy(exitfn)                \
         |              ^
   drivers/clk/qcom/gpucc-sm8750.c:469:1: note: previous definition is here
     469 | module_platform_driver(gpu_cc_sm8750_driver);
         | ^
   include/linux/platform_device.h:292:2: note: expanded from macro 'module_platform_driver'
     292 |         module_driver(__platform_driver, platform_driver_register, \
         |         ^
   include/linux/device/driver.h:266:3: note: expanded from macro 'module_driver'
     266 | } \
         |   ^
   include/linux/module.h:142:7: note: expanded from macro '\
   module_exit'
     142 |         void cleanup_module(void) __copy(exitfn)                \
         |              ^
   4 errors generated.


vim +/__inittest +521 drivers/clk/qcom/gpucc-sm8750.c

   513	
   514	static struct platform_driver gx_cc_sm8750_driver = {
   515		.probe = gx_cc_sm8750_probe,
   516		.driver = {
   517			.name = "gx_cc-sm8750",
   518			.of_match_table = gx_cc_sm8750_match_table,
   519		},
   520	};
 > 521	module_platform_driver(gx_cc_sm8750_driver);
   522	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

[PATCH v2 3/3] arm64: dts: qcom: sm8750: Add GPU clock & IOMMU nodes

[Konrad Dybcio]

From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>

Add the GPU_CC and GX_CC (brand new! as far as we're concerned, this
is simply a separate block housing the GX GDSC) nodes, required to
power up the graphics-related hardware.

Make use of it by enabling the associated IOMMU as well. The GPU itself
needs some more work and will be enabled later.

Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
---
 arch/arm64/boot/dts/qcom/sm8750.dtsi | 63 ++++++++++++++++++++++++++++++++++++
 1 file changed, 63 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sm8750.dtsi b/arch/arm64/boot/dts/qcom/sm8750.dtsi
index 4643705021c6ca095a16d8d7cc3adac920b21e82..ca0770a34bed64183185aedde04f1bb96eebfa91 100644
--- a/arch/arm64/boot/dts/qcom/sm8750.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8750.dtsi
@@ -5,6 +5,7 @@
 
 #include <dt-bindings/clock/qcom,rpmh.h>
 #include <dt-bindings/clock/qcom,sm8750-gcc.h>
+#include <dt-bindings/clock/qcom,sm8750-gpucc.h>
 #include <dt-bindings/clock/qcom,sm8750-tcsr.h>
 #include <dt-bindings/dma/qcom-gpi.h>
 #include <dt-bindings/gpio/gpio.h>
@@ -3154,6 +3155,68 @@ tcsrcc: clock-controller@f204008 {
 			#reset-cells = <1>;
 		};
 
+		gxcc: clock-controller@3d64000 {
+			compatible = "qcom,sm8750-gxcc";
+			reg = <0x0 0x03d64000 0x0 0x6000>;
+			power-domains = <&rpmhpd RPMHPD_GFX>,
+					<&rpmhpd RPMHPD_MXC>,
+					<&gpucc GPU_CC_CX_GDSC>;
+			#power-domain-cells = <1>;
+		};
+
+		gpucc: clock-controller@3d90000 {
+			compatible = "qcom,sm8750-gpucc";
+			reg = <0x0 0x03d90000 0x0 0x9800>;
+
+			clocks = <&bi_tcxo_div2>,
+				 <&gcc GCC_GPU_GPLL0_CLK_SRC>,
+				 <&gcc GCC_GPU_GPLL0_DIV_CLK_SRC>;
+
+			power-domains = <&rpmhpd RPMHPD_CX>;
+
+			#clock-cells = <1>;
+			#reset-cells = <1>;
+			#power-domain-cells = <1>;
+		};
+
+		adreno_smmu: iommu@3da0000 {
+			compatible = "qcom,sm8750-smmu-500", "qcom,adreno-smmu",
+				     "qcom,smmu-500", "arm,mmu-500";
+			reg = <0x0 0x03da0000 0x0 0x40000>;
+			#iommu-cells = <2>;
+			#global-interrupts = <1>;
+			interrupts = <GIC_SPI 674 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 678 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 679 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 680 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 681 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 682 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 683 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 684 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 685 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 686 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 687 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 688 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 422 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 476 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 574 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 575 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 576 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 577 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 660 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 662 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 665 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 666 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 667 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 669 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 670 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 700 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&gpucc GPU_CC_HLOS1_VOTE_GPU_SMMU_CLK>;
+			clock-names = "hlos";
+			power-domains = <&gpucc GPU_CC_CX_GDSC>;
+			dma-coherent;
+		};
+
 		apps_smmu: iommu@15000000 {
 			compatible = "qcom,sm8750-smmu-500", "qcom,smmu-500", "arm,mmu-500";
 			reg = <0x0 0x15000000 0x0 0x100000>;

-- 
2.50.1

Re: [PATCH v2 3/3] arm64: dts: qcom: sm8750: Add GPU clock & IOMMU nodes

[Krzysztof Kozlowski]

On Wed, Jul 23, 2025 at 10:38:50PM +0200, Konrad Dybcio wrote:
> From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
> 
> Add the GPU_CC and GX_CC (brand new! as far as we're concerned, this
> is simply a separate block housing the GX GDSC) nodes, required to
> power up the graphics-related hardware.
> 
> Make use of it by enabling the associated IOMMU as well. The GPU itself
> needs some more work and will be enabled later.
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
> ---
>  arch/arm64/boot/dts/qcom/sm8750.dtsi | 63 ++++++++++++++++++++++++++++++++++++
>  1 file changed, 63 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm8750.dtsi b/arch/arm64/boot/dts/qcom/sm8750.dtsi
> index 4643705021c6ca095a16d8d7cc3adac920b21e82..ca0770a34bed64183185aedde04f1bb96eebfa91 100644
> --- a/arch/arm64/boot/dts/qcom/sm8750.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm8750.dtsi
> @@ -5,6 +5,7 @@
>  
>  #include <dt-bindings/clock/qcom,rpmh.h>
>  #include <dt-bindings/clock/qcom,sm8750-gcc.h>
> +#include <dt-bindings/clock/qcom,sm8750-gpucc.h>
>  #include <dt-bindings/clock/qcom,sm8750-tcsr.h>
>  #include <dt-bindings/dma/qcom-gpi.h>
>  #include <dt-bindings/gpio/gpio.h>
> @@ -3154,6 +3155,68 @@ tcsrcc: clock-controller@f204008 {
>  			#reset-cells = <1>;
>  		};
>  
> +		gxcc: clock-controller@3d64000 {

Not a clock controller based on properties below.

> +			compatible = "qcom,sm8750-gxcc";
> +			reg = <0x0 0x03d64000 0x0 0x6000>;
> +			power-domains = <&rpmhpd RPMHPD_GFX>,
> +					<&rpmhpd RPMHPD_MXC>,
> +					<&gpucc GPU_CC_CX_GDSC>;
> +			#power-domain-cells = <1>;
> +		};

Best regards,
Krzysztof