[PATCH 5/9] dt-bindings: clock: qcom: document the Kaanapali GPU Clock Controller

[Bryan O'Donoghue]

On 25/09/2025 00:56, Jingyi Wang wrote:
> From: Taniya Das <taniya.das at oss.qualcomm.com>
> 
> Add bindings documentation for the Kaanapali Graphics Clock and Graphics
> power domain Controller.
> 
> Signed-off-by: Taniya Das <taniya.das at oss.qualcomm.com>
> Signed-off-by: Jingyi Wang <jingyi.wang at oss.qualcomm.com>
> ---
>   .../bindings/clock/qcom,kaanapali-gxclkctl.yaml    | 63 ++++++++++++++++++++++
>   .../bindings/clock/qcom,sm8450-gpucc.yaml          |  2 +
>   include/dt-bindings/clock/qcom,kaanapali-gpucc.h   | 47 ++++++++++++++++
>   .../dt-bindings/clock/qcom,kaanapali-gxclkctl.h    | 12 +++++
>   4 files changed, 124 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/clock/qcom,kaanapali-gxclkctl.yaml b/Documentation/devicetree/bindings/clock/qcom,kaanapali-gxclkctl.yaml
> new file mode 100644
> index 000000000000..31398aec839d
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/clock/qcom,kaanapali-gxclkctl.yaml
> @@ -0,0 +1,63 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/clock/qcom,kaanapali-gxclkctl.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm Graphics power domain Controller on Kaanapali
> +
> +maintainers:
> +  - Taniya Das <taniya.das at oss.qualcomm.com>
> +
> +description: |
> +  Qualcomm graphics power domain control module provides the power
> +  domains on Qualcomm SoCs. This module exposes the GDSC power domain
> +  which helps the recovery of Graphics subsystem.
> +
> +  See also::
> +    include/dt-bindings/clock/qcom,kaanapali-gxclkctl.h
> +
> +properties:
> +  compatible:
> +    enum:
> +      - qcom,kaanapali-gxclkctl
> +
> +  power-domains:
> +    description:
> +      Power domains required for the clock controller to operate
> +    items:
> +      - description: GFX power domain
> +      - description: GMXC power domain
> +      - description: GPUCC(CX) power domain
> +
> +  '#power-domain-cells':
> +    const: 1
> +
> +  reg:
> +    maxItems: 1
> +
> +required:
> +  - compatible
> +  - reg
> +  - power-domains
> +  - '#power-domain-cells'
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/power/qcom,rpmhpd.h>
> +    soc {
> +        #address-cells = <2>;
> +        #size-cells = <2>;
> +
> +        clock-controller at 3d68024 {
> +            compatible = "qcom,kaanapali-gxclkctl";
> +            reg = <0 0x3d68024 0x0 0x8>;
> +            power-domains = <&rpmhpd RPMHPD_GFX>,
> +                            <&rpmhpd RPMHPD_GMXC>,
> +                            <&gpucc 0>;
> +            #power-domain-cells = <1>;
> +        };
> +    };
> +...
> diff --git a/Documentation/devicetree/bindings/clock/qcom,sm8450-gpucc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm8450-gpucc.yaml
> index 44380f6f8136..6feaa32569f9 100644
> --- a/Documentation/devicetree/bindings/clock/qcom,sm8450-gpucc.yaml
> +++ b/Documentation/devicetree/bindings/clock/qcom,sm8450-gpucc.yaml
> @@ -14,6 +14,7 @@ description: |
>     domains on Qualcomm SoCs.
>   
>     See also::
> +    include/dt-bindings/clock/qcom,kaanapali-gpucc.h
>       include/dt-bindings/clock/qcom,milos-gpucc.h
>       include/dt-bindings/clock/qcom,sar2130p-gpucc.h
>       include/dt-bindings/clock/qcom,sm4450-gpucc.h
> @@ -26,6 +27,7 @@ description: |
>   properties:
>     compatible:
>       enum:
> +      - qcom,kaanapali-gpucc
>         - qcom,milos-gpucc
>         - qcom,sar2130p-gpucc
>         - qcom,sm4450-gpucc
> diff --git a/include/dt-bindings/clock/qcom,kaanapali-gpucc.h b/include/dt-bindings/clock/qcom,kaanapali-gpucc.h
> new file mode 100644
> index 000000000000..e8dc2009c71b
> --- /dev/null
> +++ b/include/dt-bindings/clock/qcom,kaanapali-gpucc.h
> @@ -0,0 +1,47 @@
> +/* 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_KAANAPALI_H
> +#define _DT_BINDINGS_CLK_QCOM_GPU_CC_KAANAPALI_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_GMU_CLK					3
> +#define GPU_CC_CXO_AON_CLK					4
> +#define GPU_CC_CXO_CLK						5
> +#define GPU_CC_DEMET_CLK					6
> +#define GPU_CC_DPM_CLK						7
> +#define GPU_CC_FF_CLK_SRC					8
> +#define GPU_CC_FREQ_MEASURE_CLK					9
> +#define GPU_CC_GMU_CLK_SRC					10
> +#define GPU_CC_GPU_SMMU_VOTE_CLK				11
> +#define GPU_CC_GX_ACCU_SHIFT_CLK				12
> +#define GPU_CC_GX_GMU_CLK					13
> +#define GPU_CC_HUB_AON_CLK					14
> +#define GPU_CC_HUB_CLK_SRC					15
> +#define GPU_CC_HUB_CX_INT_CLK					16
> +#define GPU_CC_HUB_DIV_CLK_SRC					17
> +#define GPU_CC_MEMNOC_GFX_CLK					18
> +#define GPU_CC_PLL0						19
> +#define GPU_CC_PLL0_OUT_EVEN					20
> +#define GPU_CC_RSCC_HUB_AON_CLK					21
> +#define GPU_CC_RSCC_XO_AON_CLK					22
> +#define GPU_CC_SLEEP_CLK					23
> +
> +/* GPU_CC power domains */
> +#define GPU_CC_CX_GDSC						0
> +
> +/* GPU_CC resets */
> +#define GPU_CC_CB_BCR						0
> +#define GPU_CC_CX_BCR						1
> +#define GPU_CC_FAST_HUB_BCR					2
> +#define GPU_CC_FF_BCR						3
> +#define GPU_CC_GMU_BCR						4
> +#define GPU_CC_GX_BCR						5
> +#define GPU_CC_XO_BCR						6
> +
> +#endif
> diff --git a/include/dt-bindings/clock/qcom,kaanapali-gxclkctl.h b/include/dt-bindings/clock/qcom,kaanapali-gxclkctl.h
> new file mode 100644
> index 000000000000..460e21881c4f
> --- /dev/null
> +++ b/include/dt-bindings/clock/qcom,kaanapali-gxclkctl.h
> @@ -0,0 +1,12 @@
> +/* 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_GX_CLKCTL_KAANAPALI_H
> +#define _DT_BINDINGS_CLK_QCOM_GX_CLKCTL_KAANAPALI_H
> +
> +/* GX_CLKCTL power domains */
> +#define GX_CLKCTL_GX_GDSC				0
> +
> +#endif
> 
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue at linaro.org>