Re: [PATCH v4 2/4] dt-bindings: power: rockchip: Convert to json-schema

[Johan Jonker <jbx6244@gmail.com>]

Hi all,

Could Heiko and Rob advise if all these power-controller dtsi subnode
names should be changed?

Thanks!

On 3/24/21 11:14 AM, elaine.zhang wrote:
> Hi, Johan:
> 
> 在 2021/3/24 下午5:17, Johan Jonker 写道:
>> Hi Elaine,
>>
>> >From Rob's build log it turns out that 2 more properties must be added.
>> Add these new properties in separate patch.
>> Retest with commands below.
>> ====
>> See rk3288.dtsi
>>
>>             assigned-clocks = <&cru SCLK_EDP_24M>;
>>             assigned-clock-parents = <&xin24m>;
> This should not be in the power node.
> It should be on the CRU node, or on the EDP's own node.
> I could have added it just to solve dtbs_check .

If this should not be in the power node then could you add a patch
before the YAML conversion?

example:

- ARM: dts: Move assigned-clocks in rk3288.dtsi
- dt-bindings: power: rockchip: Convert to json-schema
- dt-bindings: power: rockchip: Add bindings for RK3568 Soc
- soc: rockchip: power-domain: add rk3568 powerdomains

When that regex must be changed then also change all dtsi files.... ;)

- ARM: dts: rk3288: change power-controller sub nodenames.
- etc...

>> ====
>> https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20210324071609.7531-3-zhangqing@rock-chips.com/
>>
>>
>> make ARCH=arm dtbs_check
>> DT_SCHEMA_FILES=Documentation/devicetree/bindings/power/rockchip,power-controller.yaml
>>
>>
>> make ARCH=arm64 dtbs_check
>> DT_SCHEMA_FILES=Documentation/devicetree/bindings/power/rockchip,power-controller.yaml
>>
>>
>> On 3/24/21 8:16 AM, Elaine Zhang wrote:
>>> Convert the soc/rockchip/power_domain.txt binding document to
>>> json-schema and move to the power bindings directory.
>>>
>>> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
>>> Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
>>> ---
>>>   .../power/rockchip,power-controller.yaml      | 284 ++++++++++++++++++
>>>   .../bindings/soc/rockchip/power_domain.txt    | 136 ---------
>>>   2 files changed, 284 insertions(+), 136 deletions(-)
>>>   create mode 100644
>>> Documentation/devicetree/bindings/power/rockchip,power-controller.yaml
>>>   delete mode 100644
>>> Documentation/devicetree/bindings/soc/rockchip/power_domain.txt
>>>
>>> diff --git
>>> a/Documentation/devicetree/bindings/power/rockchip,power-controller.yaml
>>> b/Documentation/devicetree/bindings/power/rockchip,power-controller.yaml
>>> new file mode 100644
>>> index 000000000000..a220322c5139
>>> --- /dev/null
>>> +++
>>> b/Documentation/devicetree/bindings/power/rockchip,power-controller.yaml
>>> @@ -0,0 +1,284 @@
>>> +# SPDX-License-Identifier: GPL-2.0-only
>>> +%YAML 1.2
>>> +---
>>> +$id:
>>> http://devicetree.org/schemas/power/rockchip,power-controller.yaml#
>>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>>> +
>>> +title: Rockchip Power Domains
>>> +
>>> +maintainers:
>>> +  - Elaine Zhang <zhangqing@rock-chips.com>
>>> +  - Rob Herring <robh+dt@kernel.org>
>>> +  - Heiko Stuebner <heiko@sntech.de>
>>> +
>>> +description: |
>>> +  Rockchip processors include support for multiple power domains
>>> which can be
>>> +  powered up/down by software based on different application
>>> scenarios to save power.
>>> +
>>> +  Power domains contained within power-controller node are generic
>>> power domain
>>> +  providers documented in
>>> Documentation/devicetree/bindings/power/power-domain.yaml.
>>> +
>>> +  IP cores belonging to a power domain should contain a "power-domains"
>>> +  property that is a phandle for the power domain node representing
>>> the domain.
>>> +
>>> +properties:
>>> +  $nodename:
>>> +    const: power-controller
>>> +
>>> +  compatible:
>>> +    enum:
>>> +      - rockchip,px30-power-controller
>>> +      - rockchip,rk3036-power-controller
>>> +      - rockchip,rk3066-power-controller
>>> +      - rockchip,rk3128-power-controller
>>> +      - rockchip,rk3188-power-controller
>>> +      - rockchip,rk3228-power-controller
>>> +      - rockchip,rk3288-power-controller
>>> +      - rockchip,rk3328-power-controller
>>> +      - rockchip,rk3366-power-controller
>>> +      - rockchip,rk3368-power-controller
>>> +      - rockchip,rk3399-power-controller
>>> +
>>> +  "#power-domain-cells":
>>> +    const: 1
>>> +
>>> +  "#address-cells":
>>> +    const: 1
>>> +
>>> +  "#size-cells":
>>> +    const: 0
>>
>> assigned-clocks:
>>    maxItems: 1
>>
>> assigned-clock-parents:
>>    maxItems: 1
>>
>>> +
>>> +patternProperties:
>>> +  "^pd_[0-9a-z_]{2,10}@[0-9a-f]+$":
>>> +    type: object
>>> +    description: |
>>> +      Represents the power domains within the power controller node
>>> as documented
>>> +      in Documentation/devicetree/bindings/power/power-domain.yaml.
>>> +
>>> +    properties:
>>> +
>>> +      "#power-domain-cells":
>>> +        description:
>>> +          Must be 0 for nodes representing a single PM domain and 1
>>> for nodes
>>> +          providing multiple PM domains.
>>> +
>>> +      "#address-cells":
>>> +        const: 1
>>> +
>>> +      "#size-cells":
>>> +        const: 0
>>> +
>>> +      reg:
>>> +        maxItems: 1
>>> +        description: |
>>> +          Power domain index. Valid values are defined in
>>> +          "include/dt-bindings/power/px30-power.h"
>>> +          "include/dt-bindings/power/rk3036-power.h"
>>> +          "include/dt-bindings/power/rk3066-power.h"
>>> +          "include/dt-bindings/power/rk3128-power.h"
>>> +          "include/dt-bindings/power/rk3188-power.h"
>>> +          "include/dt-bindings/power/rk3228-power.h"
>>> +          "include/dt-bindings/power/rk3288-power.h"
>>> +          "include/dt-bindings/power/rk3328-power.h"
>>> +          "include/dt-bindings/power/rk3366-power.h"
>>> +          "include/dt-bindings/power/rk3368-power.h"
>>> +          "include/dt-bindings/power/rk3399-power.h"
>>> +
>>> +      clocks:
>>> +        description: |
>>> +          A number of phandles to clocks that need to be enabled
>>> while power domain
>>> +          switches state.
>>> +
>>> +      pm_qos:
>>> +        description: |
>>> +          A number of phandles to qos blocks which need to be saved
>>> and restored
>>> +          while power domain switches state.
>>> +
>>> +    patternProperties:
>>> +      "^pd_[0-9a-z_]{2,10}@[0-9a-f]+$":
>>> +        type: object
>>> +        description: |
>>> +          Represents a power domain child within a power domain
>>> parent node.
>>> +
>>> +        properties:
>>> +
>>> +          "#power-domain-cells":
>>> +            description:
>>> +              Must be 0 for nodes representing a single PM domain
>>> and 1 for nodes
>>> +              providing multiple PM domains.
>>> +
>>> +          "#address-cells":
>>> +            const: 1
>>> +
>>> +          "#size-cells":
>>> +            const: 0
>>> +
>>> +          reg:
>>> +            maxItems: 1
>>> +
>>> +          clocks:
>>> +            description: |
>>> +              A number of phandles to clocks that need to be enabled
>>> while power domain
>>> +              switches state.
>>> +
>>> +          pm_qos:
>>> +            description: |
>>> +              A number of phandles to qos blocks which need to be
>>> saved and restored
>>> +              while power domain switches state.
>>> +
>>> +        patternProperties:
>>> +          "^pd_[0-9a-z_]{2,10}@[0-9a-f]+$":
>>> +            type: object
>>> +            description: |
>>> +              Represents a power domain child within a power domain
>>> parent node.
>>> +
>>> +            properties:
>>> +
>>> +              "#power-domain-cells":
>>> +                description:
>>> +                  Must be 0 for nodes representing a single PM
>>> domain and 1 for nodes
>>> +                  providing multiple PM domains.
>>> +
>>> +              "#address-cells":
>>> +                const: 1
>>> +
>>> +              "#size-cells":
>>> +                const: 0
>>> +
>>> +              reg:
>>> +                maxItems: 1
>>> +
>>> +              clocks:
>>> +                description: |
>>> +                  A number of phandles to clocks that need to be
>>> enabled while power domain
>>> +                  switches state.
>>> +
>>> +              pm_qos:
>>> +                description: |
>>> +                  A number of phandles to qos blocks which need to
>>> be saved and restored
>>> +                  while power domain switches state.
>>> +
>>> +            required:
>>> +              - reg
>>> +
>>> +            additionalProperties: false
>>> +
>>> +        required:
>>> +          - reg
>>> +
>>> +        additionalProperties: false
>>> +
>>> +    required:
>>> +      - reg
>>> +
>>> +    additionalProperties: false
>>> +
>>> +required:
>>> +  - compatible
>>> +  - "#power-domain-cells"
>>> +
>>> +additionalProperties: false
>>> +
>>> +examples:
>>> +  - |
>>> +    #include <dt-bindings/clock/rk3399-cru.h>
>>> +    #include <dt-bindings/power/rk3399-power.h>
>>> +
>>> +    soc {
>>> +        #address-cells = <2>;
>>> +        #size-cells = <2>;
>>> +
>>> +        qos_hdcp: qos@ffa90000 {
>>> +            compatible = "rockchip,rk3399-qos", "syscon";
>>> +            reg = <0x0 0xffa90000 0x0 0x20>;
>>> +        };
>>> +
>>> +        qos_iep: qos@ffa98000 {
>>> +            compatible = "rockchip,rk3399-qos", "syscon";
>>> +            reg = <0x0 0xffa98000 0x0 0x20>;
>>> +        };
>>> +
>>> +        qos_rga_r: qos@ffab0000 {
>>> +            compatible = "rockchip,rk3399-qos", "syscon";
>>> +            reg = <0x0 0xffab0000 0x0 0x20>;
>>> +        };
>>> +
>>> +        qos_rga_w: qos@ffab0080 {
>>> +            compatible = "rockchip,rk3399-qos", "syscon";
>>> +            reg = <0x0 0xffab0080 0x0 0x20>;
>>> +        };
>>> +
>>> +        qos_video_m0: qos@ffab8000 {
>>> +            compatible = "rockchip,rk3399-qos", "syscon";
>>> +            reg = <0x0 0xffab8000 0x0 0x20>;
>>> +        };
>>> +
>>> +        qos_video_m1_r: qos@ffac0000 {
>>> +            compatible = "rockchip,rk3399-qos", "syscon";
>>> +            reg = <0x0 0xffac0000 0x0 0x20>;
>>> +        };
>>> +
>>> +        qos_video_m1_w: qos@ffac0080 {
>>> +            compatible = "rockchip,rk3399-qos", "syscon";
>>> +            reg = <0x0 0xffac0080 0x0 0x20>;
>>> +        };
>>> +
>>> +        power-management@ff310000 {
>>> +            compatible = "rockchip,rk3399-pmu", "syscon", "simple-mfd";
>>> +            reg = <0x0 0xff310000 0x0 0x1000>;
>>> +
>>> +            power-controller {
>>> +                compatible = "rockchip,rk3399-power-controller";
>>> +                #power-domain-cells = <1>;
>>> +                #address-cells = <1>;
>>> +                #size-cells = <0>;
>>> +
>>> +                /* These power domains are grouped by VD_CENTER */
>>> +                pd_iep@RK3399_PD_IEP {
>>> +                    reg = <RK3399_PD_IEP>;
>>> +                    clocks = <&cru ACLK_IEP>,
>>> +                             <&cru HCLK_IEP>;
>>> +                    pm_qos = <&qos_iep>;
>>> +                    #power-domain-cells = <0>;
>>> +                };
>>> +                pd_rga@RK3399_PD_RGA {
>>> +                    reg = <RK3399_PD_RGA>;
>>> +                    clocks = <&cru ACLK_RGA>,
>>> +                             <&cru HCLK_RGA>;
>>> +                    pm_qos = <&qos_rga_r>,
>>> +                             <&qos_rga_w>;
>>> +                    #power-domain-cells = <0>;
>>> +                };
>>> +                pd_vcodec@RK3399_PD_VCODEC {
>>> +                    reg = <RK3399_PD_VCODEC>;
>>> +                    clocks = <&cru ACLK_VCODEC>,
>>> +                             <&cru HCLK_VCODEC>;
>>> +                    pm_qos = <&qos_video_m0>;
>>> +                    #power-domain-cells = <0>;
>>> +                };
>>> +                pd_vdu@RK3399_PD_VDU {
>>> +                    reg = <RK3399_PD_VDU>;
>>> +                    clocks = <&cru ACLK_VDU>,
>>> +                             <&cru HCLK_VDU>;
>>> +                    pm_qos = <&qos_video_m1_r>,
>>> +                             <&qos_video_m1_w>;
>>> +                    #power-domain-cells = <0>;
>>> +                };
>>> +                pd_vio@RK3399_PD_VIO {
>>> +                    reg = <RK3399_PD_VIO>;
>>> +                    #power-domain-cells = <1>;
>>> +                    #address-cells = <1>;
>>> +                    #size-cells = <0>;
>>> +
>>> +                    pd_hdcp@RK3399_PD_HDCP {
>>> +                        reg = <RK3399_PD_HDCP>;
>>> +                        clocks = <&cru ACLK_HDCP>,
>>> +                                 <&cru HCLK_HDCP>,
>>> +                                 <&cru PCLK_HDCP>;
>>> +                        pm_qos = <&qos_hdcp>;
>>> +                        #power-domain-cells = <0>;
>>> +                    };
>>> +                };
>>> +            };
>>> +        };
>>> +    };
>>> diff --git
>>> a/Documentation/devicetree/bindings/soc/rockchip/power_domain.txt
>>> b/Documentation/devicetree/bindings/soc/rockchip/power_domain.txt
>>> deleted file mode 100644
>>> index 8304eceb62e4..000000000000
>>> --- a/Documentation/devicetree/bindings/soc/rockchip/power_domain.txt
>>> +++ /dev/null
>>> @@ -1,136 +0,0 @@
>>> -* Rockchip Power Domains
>>> -
>>> -Rockchip processors include support for multiple power domains which
>>> can be
>>> -powered up/down by software based on different application scenes to
>>> save power.
>>> -
>>> -Required properties for power domain controller:
>>> -- compatible: Should be one of the following.
>>> -    "rockchip,px30-power-controller" - for PX30 SoCs.
>>> -    "rockchip,rk3036-power-controller" - for RK3036 SoCs.
>>> -    "rockchip,rk3066-power-controller" - for RK3066 SoCs.
>>> -    "rockchip,rk3128-power-controller" - for RK3128 SoCs.
>>> -    "rockchip,rk3188-power-controller" - for RK3188 SoCs.
>>> -    "rockchip,rk3228-power-controller" - for RK3228 SoCs.
>>> -    "rockchip,rk3288-power-controller" - for RK3288 SoCs.
>>> -    "rockchip,rk3328-power-controller" - for RK3328 SoCs.
>>> -    "rockchip,rk3366-power-controller" - for RK3366 SoCs.
>>> -    "rockchip,rk3368-power-controller" - for RK3368 SoCs.
>>> -    "rockchip,rk3399-power-controller" - for RK3399 SoCs.
>>> -- #power-domain-cells: Number of cells in a power-domain specifier.
>>> -    Should be 1 for multiple PM domains.
>>> -- #address-cells: Should be 1.
>>> -- #size-cells: Should be 0.
>>> -
>>> -Required properties for power domain sub nodes:
>>> -- reg: index of the power domain, should use macros in:
>>> -    "include/dt-bindings/power/px30-power.h" - for PX30 type power
>>> domain.
>>> -    "include/dt-bindings/power/rk3036-power.h" - for RK3036 type
>>> power domain.
>>> -    "include/dt-bindings/power/rk3066-power.h" - for RK3066 type
>>> power domain.
>>> -    "include/dt-bindings/power/rk3128-power.h" - for RK3128 type
>>> power domain.
>>> -    "include/dt-bindings/power/rk3188-power.h" - for RK3188 type
>>> power domain.
>>> -    "include/dt-bindings/power/rk3228-power.h" - for RK3228 type
>>> power domain.
>>> -    "include/dt-bindings/power/rk3288-power.h" - for RK3288 type
>>> power domain.
>>> -    "include/dt-bindings/power/rk3328-power.h" - for RK3328 type
>>> power domain.
>>> -    "include/dt-bindings/power/rk3366-power.h" - for RK3366 type
>>> power domain.
>>> -    "include/dt-bindings/power/rk3368-power.h" - for RK3368 type
>>> power domain.
>>> -    "include/dt-bindings/power/rk3399-power.h" - for RK3399 type
>>> power domain.
>>> -- clocks (optional): phandles to clocks which need to be enabled
>>> while power domain
>>> -    switches state.
>>> -- pm_qos (optional): phandles to qos blocks which need to be saved
>>> and restored
>>> -    while power domain switches state.
>>> -
>>> -Qos Example:
>>> -
>>> -    qos_gpu: qos_gpu@ffaf0000 {
>>> -        compatible ="syscon";
>>> -        reg = <0x0 0xffaf0000 0x0 0x20>;
>>> -    };
>>> -
>>> -Example:
>>> -
>>> -    power: power-controller {
>>> -        compatible = "rockchip,rk3288-power-controller";
>>> -        #power-domain-cells = <1>;
>>> -        #address-cells = <1>;
>>> -        #size-cells = <0>;
>>> -
>>> -        pd_gpu {
>>> -            reg = <RK3288_PD_GPU>;
>>> -            clocks = <&cru ACLK_GPU>;
>>> -            pm_qos = <&qos_gpu>;
>>> -        };
>>> -    };
>>> -
>>> -     power: power-controller {
>>> -                compatible = "rockchip,rk3368-power-controller";
>>> -                #power-domain-cells = <1>;
>>> -                #address-cells = <1>;
>>> -                #size-cells = <0>;
>>> -
>>> -                pd_gpu_1 {
>>> -                        reg = <RK3368_PD_GPU_1>;
>>> -                        clocks = <&cru ACLK_GPU_CFG>;
>>> -                };
>>> -        };
>>> -
>>> -Example 2:
>>> -        power: power-controller {
>>> -            compatible = "rockchip,rk3399-power-controller";
>>> -            #power-domain-cells = <1>;
>>> -            #address-cells = <1>;
>>> -            #size-cells = <0>;
>>> -
>>> -            pd_vio {
>>> -                #address-cells = <1>;
>>> -                #size-cells = <0>;
>>> -                reg = <RK3399_PD_VIO>;
>>> -
>>> -                pd_vo {
>>> -                    #address-cells = <1>;
>>> -                    #size-cells = <0>;
>>> -                    reg = <RK3399_PD_VO>;
>>> -
>>> -                    pd_vopb {
>>> -                        reg = <RK3399_PD_VOPB>;
>>> -                    };
>>> -
>>> -                    pd_vopl {
>>> -                        reg = <RK3399_PD_VOPL>;
>>> -                    };
>>> -                };
>>> -            };
>>> -        };
>>> -
>>> -Node of a device using power domains must have a power-domains
>>> property,
>>> -containing a phandle to the power device node and an index
>>> specifying which
>>> -power domain to use.
>>> -The index should use macros in:
>>> -    "include/dt-bindings/power/px30-power.h" - for px30 type power
>>> domain.
>>> -    "include/dt-bindings/power/rk3036-power.h" - for rk3036 type
>>> power domain.
>>> -    "include/dt-bindings/power/rk3128-power.h" - for rk3128 type
>>> power domain.
>>> -    "include/dt-bindings/power/rk3128-power.h" - for rk3228 type
>>> power domain.
>>> -    "include/dt-bindings/power/rk3288-power.h" - for rk3288 type
>>> power domain.
>>> -    "include/dt-bindings/power/rk3328-power.h" - for rk3328 type
>>> power domain.
>>> -    "include/dt-bindings/power/rk3366-power.h" - for rk3366 type
>>> power domain.
>>> -    "include/dt-bindings/power/rk3368-power.h" - for rk3368 type
>>> power domain.
>>> -    "include/dt-bindings/power/rk3399-power.h" - for rk3399 type
>>> power domain.
>>> -
>>> -Example of the node using power domain:
>>> -
>>> -    node {
>>> -        /* ... */
>>> -        power-domains = <&power RK3288_PD_GPU>;
>>> -        /* ... */
>>> -    };
>>> -
>>> -    node {
>>> -                /* ... */
>>> -                power-domains = <&power RK3368_PD_GPU_1>;
>>> -                /* ... */
>>> -        };
>>> -
>>> -    node {
>>> -        /* ... */
>>> -        power-domains = <&power RK3399_PD_VOPB>;
>>> -        /* ... */
>>> -    };
>>>
>>
>>
> 
>