[v3,2/3] soc: dt-bindings: add loongson-2 pm

  Add the Loongson-2 SoC Power Management Controller binding with DT
schema format using json-schema.

Signed-off-by: Yinbo Zhu <zhuyinbo@loongson.cn>
---
 .../soc/loongson/loongson,ls2k-pmc.yaml       | 53 +++++++++++++++++++
 MAINTAINERS                                   |  6 +++
 2 files changed, 59 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/soc/loongson/loongson,ls2k-pmc.yaml
  

Hey,

Rob, could you take a look at this please? On v2 while you were away I
was kinda struggling w/ suspend-address & whether it made sense.

The v2 & v1 are here:
https://lore.kernel.org/all/20230522093156.7108-3-zhuyinbo@loongson.cn/
https://lore.kernel.org/all/20230517073149.31980-3-zhuyinbo@loongson.cn/

On Thu, Jun 15, 2023 at 05:17:56PM +0800, Yinbo Zhu wrote:
> Add the Loongson-2 SoC Power Management Controller binding with DT
> schema format using json-schema.
> 
> Signed-off-by: Yinbo Zhu <zhuyinbo@loongson.cn>
> ---
>  .../soc/loongson/loongson,ls2k-pmc.yaml       | 53 +++++++++++++++++++
>  MAINTAINERS                                   |  6 +++
>  2 files changed, 59 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/soc/loongson/loongson,ls2k-pmc.yaml
> 
> diff --git a/Documentation/devicetree/bindings/soc/loongson/loongson,ls2k-pmc.yaml b/Documentation/devicetree/bindings/soc/loongson/loongson,ls2k-pmc.yaml
> new file mode 100644
> index 000000000000..32499bd10f8c
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/soc/loongson/loongson,ls2k-pmc.yaml

The filename should ideally match one of the compatibles.

> @@ -0,0 +1,53 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/soc/loongson/loongson,ls2k-pmc.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Loongson-2 Power Manager controller
> +
> +maintainers:
> +  - Yinbo Zhu <zhuyinbo@loongson.cn>
> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - items:
> +          - enum:
> +              - loongson,ls2k1000-pmc
> +              - loongson,ls2k0500-pmc

I notice the driver only supports one of these two. Is there a reason
for that?

> +          - const: syscon
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  suspend-address:
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +    description:
> +      The "suspend-address" is a deep sleep state (Suspend To RAM)
> +      firmware entry address which was jumped from kernel and it's
> +      value was dependent on specific platform firmware code. In
> +      addition, the PM need according to it to indicate that current
> +      SoC whether support Suspend To RAM.
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/irq.h>
> +
> +    pmc: pm@1fe27000 {
       ^^^

nit: this label isn't used, so you can drop it.

Cheers,
Conor.
  

在 2023/6/16 下午2:58, Conor Dooley 写道:
> Hey,
> 
> Rob, could you take a look at this please? On v2 while you were away I
> was kinda struggling w/ suspend-address & whether it made sense.
> 
> The v2 & v1 are here:
> https://lore.kernel.org/all/20230522093156.7108-3-zhuyinbo@loongson.cn/
> https://lore.kernel.org/all/20230517073149.31980-3-zhuyinbo@loongson.cn/
> 
> On Thu, Jun 15, 2023 at 05:17:56PM +0800, Yinbo Zhu wrote:
>> Add the Loongson-2 SoC Power Management Controller binding with DT
>> schema format using json-schema.
>>
>> Signed-off-by: Yinbo Zhu <zhuyinbo@loongson.cn>
>> ---
>>   .../soc/loongson/loongson,ls2k-pmc.yaml       | 53 +++++++++++++++++++
>>   MAINTAINERS                                   |  6 +++
>>   2 files changed, 59 insertions(+)
>>   create mode 100644 Documentation/devicetree/bindings/soc/loongson/loongson,ls2k-pmc.yaml
>>
>> diff --git a/Documentation/devicetree/bindings/soc/loongson/loongson,ls2k-pmc.yaml b/Documentation/devicetree/bindings/soc/loongson/loongson,ls2k-pmc.yaml
>> new file mode 100644
>> index 000000000000..32499bd10f8c
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/soc/loongson/loongson,ls2k-pmc.yaml
> 
> The filename should ideally match one of the compatibles.


I learn about that yaml file name need match this compatible, but here
using a specific compatible as the name of the yaml file seems a bit
inappropriate . After all, this yaml file needs to cover lots of ls2k
series SoC rather than a specific SoC, and the yaml file naming in
kernel drivers is basically the same that use cover a series SoC's way.

> 
>> @@ -0,0 +1,53 @@
>> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/soc/loongson/loongson,ls2k-pmc.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Loongson-2 Power Manager controller
>> +
>> +maintainers:
>> +  - Yinbo Zhu <zhuyinbo@loongson.cn>
>> +
>> +properties:
>> +  compatible:
>> +    oneOf:
>> +      - items:
>> +          - enum:
>> +              - loongson,ls2k1000-pmc
>> +              - loongson,ls2k0500-pmc
> 
> I notice the driver only supports one of these two. Is there a reason
> for that?


The driver can support both of the above, and I will add another.

> 
>> +          - const: syscon
>> +
>> +  reg:
>> +    maxItems: 1
>> +
>> +  interrupts:
>> +    maxItems: 1
>> +
>> +  suspend-address:
>> +    $ref: /schemas/types.yaml#/definitions/uint32
>> +    description:
>> +      The "suspend-address" is a deep sleep state (Suspend To RAM)
>> +      firmware entry address which was jumped from kernel and it's
>> +      value was dependent on specific platform firmware code. In
>> +      addition, the PM need according to it to indicate that current
>> +      SoC whether support Suspend To RAM.
>> +
>> +required:
>> +  - compatible
>> +  - reg
>> +  - interrupts
>> +
>> +additionalProperties: false
>> +
>> +examples:
>> +  - |
>> +    #include <dt-bindings/interrupt-controller/irq.h>
>> +
>> +    pmc: pm@1fe27000 {
>         ^^^
> 
> nit: this label isn't used, so you can drop it.


This lable need to be used by poweroff and reboot node but I don't add
these node that reference pmc here.

Thanks,
Yinbo
  

On Fri, Jun 16, 2023 at 03:53:38PM +0800, zhuyinbo wrote:
> 在 2023/6/16 下午2:58, Conor Dooley 写道:
> > 
> > Rob, could you take a look at this please? On v2 while you were away I
> > was kinda struggling w/ suspend-address & whether it made sense.
> > 
> > The v2 & v1 are here:
> > https://lore.kernel.org/all/20230522093156.7108-3-zhuyinbo@loongson.cn/
> > https://lore.kernel.org/all/20230517073149.31980-3-zhuyinbo@loongson.cn/
> > 
> > On Thu, Jun 15, 2023 at 05:17:56PM +0800, Yinbo Zhu wrote:
> > > Add the Loongson-2 SoC Power Management Controller binding with DT
> > > schema format using json-schema.
> > > 
> > > Signed-off-by: Yinbo Zhu <zhuyinbo@loongson.cn>
> > > ---
> > >   .../soc/loongson/loongson,ls2k-pmc.yaml       | 53 +++++++++++++++++++
> > >   MAINTAINERS                                   |  6 +++
> > >   2 files changed, 59 insertions(+)
> > >   create mode 100644 Documentation/devicetree/bindings/soc/loongson/loongson,ls2k-pmc.yaml
> > > 
> > > diff --git a/Documentation/devicetree/bindings/soc/loongson/loongson,ls2k-pmc.yaml b/Documentation/devicetree/bindings/soc/loongson/loongson,ls2k-pmc.yaml
> > > new file mode 100644
> > > index 000000000000..32499bd10f8c
> > > --- /dev/null
> > > +++ b/Documentation/devicetree/bindings/soc/loongson/loongson,ls2k-pmc.yaml
> > 
> > The filename should ideally match one of the compatibles.
> 
> 
> I learn about that yaml file name need match this compatible, but here
> using a specific compatible as the name of the yaml file seems a bit
> inappropriate . After all, this yaml file needs to cover lots of ls2k
> series SoC rather than a specific SoC, and the yaml file naming in
> kernel drivers is basically the same that use cover a series SoC's way.
> 
> > 
> > > @@ -0,0 +1,53 @@
> > > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> > > +%YAML 1.2
> > > +---
> > > +$id: http://devicetree.org/schemas/soc/loongson/loongson,ls2k-pmc.yaml#
> > > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > > +
> > > +title: Loongson-2 Power Manager controller
> > > +
> > > +maintainers:
> > > +  - Yinbo Zhu <zhuyinbo@loongson.cn>
> > > +
> > > +properties:
> > > +  compatible:
> > > +    oneOf:
> > > +      - items:
> > > +          - enum:
> > > +              - loongson,ls2k1000-pmc
> > > +              - loongson,ls2k0500-pmc
> > 
> > I notice the driver only supports one of these two. Is there a reason
> > for that?
> 
> 
> The driver can support both of the above, and I will add another.

The driver only contains
	static const struct of_device_id loongson2_pm_match[] = {
	       { .compatible = "loongson,ls2k1000-pmc", },
	       {},
	};
so it only supports the 2k1000 right now. Are the 2k1000 and 2k0500
compatible with eachother?

> > > +          - const: syscon
> > > +
> > > +  reg:
> > > +    maxItems: 1
> > > +
> > > +  interrupts:
> > > +    maxItems: 1
> > > +
> > > +  suspend-address:
> > > +    $ref: /schemas/types.yaml#/definitions/uint32
> > > +    description:
> > > +      The "suspend-address" is a deep sleep state (Suspend To RAM)
> > > +      firmware entry address which was jumped from kernel and it's
> > > +      value was dependent on specific platform firmware code. In
> > > +      addition, the PM need according to it to indicate that current
> > > +      SoC whether support Suspend To RAM.
> > > +
> > > +required:
> > > +  - compatible
> > > +  - reg
> > > +  - interrupts
> > > +
> > > +additionalProperties: false
> > > +
> > > +examples:
> > > +  - |
> > > +    #include <dt-bindings/interrupt-controller/irq.h>
> > > +
> > > +    pmc: pm@1fe27000 {
> >         ^^^
> > 
> > nit: this label isn't used, so you can drop it.
> 
> 
> This lable need to be used by poweroff and reboot node but I don't add
> these node that reference pmc here.

Right, in the dts it might need those, but not in the example in the
binding.

Cheers,
Conor.
  

On 15/06/2023 11:17, Yinbo Zhu wrote:
> Add the Loongson-2 SoC Power Management Controller binding with DT
> schema format using json-schema.
> 
> Signed-off-by: Yinbo Zhu <zhuyinbo@loongson.cn>
> ---
>  .../soc/loongson/loongson,ls2k-pmc.yaml       | 53 +++++++++++++++++++
>  MAINTAINERS                                   |  6 +++
>  2 files changed, 59 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/soc/loongson/loongson,ls2k-pmc.yaml
> 
> diff --git a/Documentation/devicetree/bindings/soc/loongson/loongson,ls2k-pmc.yaml b/Documentation/devicetree/bindings/soc/loongson/loongson,ls2k-pmc.yaml
> new file mode 100644
> index 000000000000..32499bd10f8c
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/soc/loongson/loongson,ls2k-pmc.yaml
> @@ -0,0 +1,53 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/soc/loongson/loongson,ls2k-pmc.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Loongson-2 Power Manager controller
> +
> +maintainers:
> +  - Yinbo Zhu <zhuyinbo@loongson.cn>
> +
> +properties:
> +  compatible:
> +    oneOf:

Drop oneOf, you don't have here many choices.

> +      - items:
> +          - enum:
> +              - loongson,ls2k1000-pmc
> +              - loongson,ls2k0500-pmc
> +          - const: syscon
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  suspend-address:
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +    description:
> +      The "suspend-address" is a deep sleep state (Suspend To RAM)
> +      firmware entry address which was jumped from kernel and it's
> +      value was dependent on specific platform firmware code. In
> +      addition, the PM need according to it to indicate that current
> +      SoC whether support Suspend To RAM.
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/irq.h>
> +
> +    pmc: pm@1fe27000 {

Node name: system-controller or power-pamanagement

With these two:

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Best regards,
Krzysztof
  

在 2023/6/16 下午4:03, Conor Dooley 写道:
> On Fri, Jun 16, 2023 at 03:53:38PM +0800, zhuyinbo wrote:
>> 在 2023/6/16 下午2:58, Conor Dooley 写道:
>>>
>>> Rob, could you take a look at this please? On v2 while you were away I
>>> was kinda struggling w/ suspend-address & whether it made sense.
>>>
>>> The v2 & v1 are here:
>>> https://lore.kernel.org/all/20230522093156.7108-3-zhuyinbo@loongson.cn/
>>> https://lore.kernel.org/all/20230517073149.31980-3-zhuyinbo@loongson.cn/
>>>
>>> On Thu, Jun 15, 2023 at 05:17:56PM +0800, Yinbo Zhu wrote:
>>>> Add the Loongson-2 SoC Power Management Controller binding with DT
>>>> schema format using json-schema.
>>>>
>>>> Signed-off-by: Yinbo Zhu <zhuyinbo@loongson.cn>
>>>> ---
>>>>    .../soc/loongson/loongson,ls2k-pmc.yaml       | 53 +++++++++++++++++++
>>>>    MAINTAINERS                                   |  6 +++
>>>>    2 files changed, 59 insertions(+)
>>>>    create mode 100644 Documentation/devicetree/bindings/soc/loongson/loongson,ls2k-pmc.yaml
>>>>
>>>> diff --git a/Documentation/devicetree/bindings/soc/loongson/loongson,ls2k-pmc.yaml b/Documentation/devicetree/bindings/soc/loongson/loongson,ls2k-pmc.yaml
>>>> new file mode 100644
>>>> index 000000000000..32499bd10f8c
>>>> --- /dev/null
>>>> +++ b/Documentation/devicetree/bindings/soc/loongson/loongson,ls2k-pmc.yaml
>>>
>>> The filename should ideally match one of the compatibles.
>>
>>
>> I learn about that yaml file name need match this compatible, but here
>> using a specific compatible as the name of the yaml file seems a bit
>> inappropriate . After all, this yaml file needs to cover lots of ls2k
>> series SoC rather than a specific SoC, and the yaml file naming in
>> kernel drivers is basically the same that use cover a series SoC's way.
>>
>>>
>>>> @@ -0,0 +1,53 @@
>>>> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
>>>> +%YAML 1.2
>>>> +---
>>>> +$id: http://devicetree.org/schemas/soc/loongson/loongson,ls2k-pmc.yaml#
>>>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>>>> +
>>>> +title: Loongson-2 Power Manager controller
>>>> +
>>>> +maintainers:
>>>> +  - Yinbo Zhu <zhuyinbo@loongson.cn>
>>>> +
>>>> +properties:
>>>> +  compatible:
>>>> +    oneOf:
>>>> +      - items:
>>>> +          - enum:
>>>> +              - loongson,ls2k1000-pmc
>>>> +              - loongson,ls2k0500-pmc
>>>
>>> I notice the driver only supports one of these two. Is there a reason
>>> for that?
>>
>>
>> The driver can support both of the above, and I will add another.
> 
> The driver only contains
> 	static const struct of_device_id loongson2_pm_match[] = {
> 	       { .compatible = "loongson,ls2k1000-pmc", },
> 	       {},
> 	};
> so it only supports the 2k1000 right now. Are the 2k1000 and 2k0500
> compatible with eachother?


They are not completely compatible, 2k500 may still require some work to
be done, but I can confirm this driver was can compatible 2k0500 and
2k1000. for match yaml file, and I can add 2k0500 compatible in driver.

> 
>>>> +          - const: syscon
>>>> +
>>>> +  reg:
>>>> +    maxItems: 1
>>>> +
>>>> +  interrupts:
>>>> +    maxItems: 1
>>>> +
>>>> +  suspend-address:
>>>> +    $ref: /schemas/types.yaml#/definitions/uint32
>>>> +    description:
>>>> +      The "suspend-address" is a deep sleep state (Suspend To RAM)
>>>> +      firmware entry address which was jumped from kernel and it's
>>>> +      value was dependent on specific platform firmware code. In
>>>> +      addition, the PM need according to it to indicate that current
>>>> +      SoC whether support Suspend To RAM.
>>>> +
>>>> +required:
>>>> +  - compatible
>>>> +  - reg
>>>> +  - interrupts
>>>> +
>>>> +additionalProperties: false
>>>> +
>>>> +examples:
>>>> +  - |
>>>> +    #include <dt-bindings/interrupt-controller/irq.h>
>>>> +
>>>> +    pmc: pm@1fe27000 {
>>>          ^^^
>>>
>>> nit: this label isn't used, so you can drop it.
>>
>>
>> This lable need to be used by poweroff and reboot node but I don't add
>> these node that reference pmc here.
> 
> Right, in the dts it might need those, but not in the example in the
> binding.


okay, I got it.

Thanks,
Yinbo
  

在 2023/6/16 下午4:03, Krzysztof Kozlowski 写道:
> On 15/06/2023 11:17, Yinbo Zhu wrote:
>> Add the Loongson-2 SoC Power Management Controller binding with DT
>> schema format using json-schema.
>>
>> Signed-off-by: Yinbo Zhu <zhuyinbo@loongson.cn>
>> ---
>>   .../soc/loongson/loongson,ls2k-pmc.yaml       | 53 +++++++++++++++++++
>>   MAINTAINERS                                   |  6 +++
>>   2 files changed, 59 insertions(+)
>>   create mode 100644 Documentation/devicetree/bindings/soc/loongson/loongson,ls2k-pmc.yaml
>>
>> diff --git a/Documentation/devicetree/bindings/soc/loongson/loongson,ls2k-pmc.yaml b/Documentation/devicetree/bindings/soc/loongson/loongson,ls2k-pmc.yaml
>> new file mode 100644
>> index 000000000000..32499bd10f8c
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/soc/loongson/loongson,ls2k-pmc.yaml
>> @@ -0,0 +1,53 @@
>> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/soc/loongson/loongson,ls2k-pmc.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Loongson-2 Power Manager controller
>> +
>> +maintainers:
>> +  - Yinbo Zhu <zhuyinbo@loongson.cn>
>> +
>> +properties:
>> +  compatible:
>> +    oneOf:
> 
> Drop oneOf, you don't have here many choices.


okay, I got it.

> 
>> +      - items:
>> +          - enum:
>> +              - loongson,ls2k1000-pmc
>> +              - loongson,ls2k0500-pmc
>> +          - const: syscon
>> +
>> +  reg:
>> +    maxItems: 1
>> +
>> +  interrupts:
>> +    maxItems: 1
>> +
>> +  suspend-address:
>> +    $ref: /schemas/types.yaml#/definitions/uint32
>> +    description:
>> +      The "suspend-address" is a deep sleep state (Suspend To RAM)
>> +      firmware entry address which was jumped from kernel and it's
>> +      value was dependent on specific platform firmware code. In
>> +      addition, the PM need according to it to indicate that current
>> +      SoC whether support Suspend To RAM.
>> +
>> +required:
>> +  - compatible
>> +  - reg
>> +  - interrupts
>> +
>> +additionalProperties: false
>> +
>> +examples:
>> +  - |
>> +    #include <dt-bindings/interrupt-controller/irq.h>
>> +
>> +    pmc: pm@1fe27000 {
> 
> Node name: system-controller or power-pamanagement
> 
> With these two:
> 
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>


okay, I will do it.

Thanks,
Yinbo
  

On Thu, Jun 15, 2023 at 05:17:56PM +0800, Yinbo Zhu wrote:
> Add the Loongson-2 SoC Power Management Controller binding with DT
> schema format using json-schema.
> 
> Signed-off-by: Yinbo Zhu <zhuyinbo@loongson.cn>
> ---
>  .../soc/loongson/loongson,ls2k-pmc.yaml       | 53 +++++++++++++++++++
>  MAINTAINERS                                   |  6 +++
>  2 files changed, 59 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/soc/loongson/loongson,ls2k-pmc.yaml
> 
> diff --git a/Documentation/devicetree/bindings/soc/loongson/loongson,ls2k-pmc.yaml b/Documentation/devicetree/bindings/soc/loongson/loongson,ls2k-pmc.yaml
> new file mode 100644
> index 000000000000..32499bd10f8c
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/soc/loongson/loongson,ls2k-pmc.yaml
> @@ -0,0 +1,53 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/soc/loongson/loongson,ls2k-pmc.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Loongson-2 Power Manager controller
> +
> +maintainers:
> +  - Yinbo Zhu <zhuyinbo@loongson.cn>
> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - items:
> +          - enum:
> +              - loongson,ls2k1000-pmc
> +              - loongson,ls2k0500-pmc
> +          - const: syscon
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  suspend-address:

loongson,suspend-address

> +    $ref: /schemas/types.yaml#/definitions/uint32

Isn't this a 64-bit platform? Probably better if this is a 64-bit value 
in case that's needed in the future.

> +    description:
> +      The "suspend-address" is a deep sleep state (Suspend To RAM)
> +      firmware entry address which was jumped from kernel and it's
> +      value was dependent on specific platform firmware code. In
> +      addition, the PM need according to it to indicate that current
> +      SoC whether support Suspend To RAM.
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/irq.h>
> +
> +    pmc: pm@1fe27000 {
> +        compatible = "loongson,ls2k1000-pmc", "syscon";
> +        reg = <0x1fe27000 0x58>;
> +        interrupt-parent = <&liointc1>;
> +        interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
> +        suspend-address = <0x1c000500>;
> +    };
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 7a91f14cad2e..bcd05f1fa5c1 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -12190,6 +12190,12 @@ S:	Maintained
>  F:	Documentation/devicetree/bindings/hwinfo/loongson,ls2k-chipid.yaml
>  F:	drivers/soc/loongson/loongson2_guts.c
>  
> +LOONGSON-2 SOC SERIES PM DRIVER
> +M:	Yinbo Zhu <zhuyinbo@loongson.cn>
> +L:	linux-pm@vger.kernel.org
> +S:	Maintained
> +F:	Documentation/devicetree/bindings/soc/loongson/loongson,ls2k-pmc.yaml
> +
>  LOONGSON-2 SOC SERIES PINCTRL DRIVER
>  M:	zhanghongchen <zhanghongchen@loongson.cn>
>  M:	Yinbo Zhu <zhuyinbo@loongson.cn>
> -- 
> 2.20.1
>
  

在 2023/6/16 下午11:17, Rob Herring 写道:
> On Thu, Jun 15, 2023 at 05:17:56PM +0800, Yinbo Zhu wrote:
>> Add the Loongson-2 SoC Power Management Controller binding with DT
>> schema format using json-schema.
>>
>> Signed-off-by: Yinbo Zhu <zhuyinbo@loongson.cn>
>> ---
>>   .../soc/loongson/loongson,ls2k-pmc.yaml       | 53 +++++++++++++++++++
>>   MAINTAINERS                                   |  6 +++
>>   2 files changed, 59 insertions(+)
>>   create mode 100644 Documentation/devicetree/bindings/soc/loongson/loongson,ls2k-pmc.yaml
>>
>> diff --git a/Documentation/devicetree/bindings/soc/loongson/loongson,ls2k-pmc.yaml b/Documentation/devicetree/bindings/soc/loongson/loongson,ls2k-pmc.yaml
>> new file mode 100644
>> index 000000000000..32499bd10f8c
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/soc/loongson/loongson,ls2k-pmc.yaml
>> @@ -0,0 +1,53 @@
>> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/soc/loongson/loongson,ls2k-pmc.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Loongson-2 Power Manager controller
>> +
>> +maintainers:
>> +  - Yinbo Zhu <zhuyinbo@loongson.cn>
>> +
>> +properties:
>> +  compatible:
>> +    oneOf:
>> +      - items:
>> +          - enum:
>> +              - loongson,ls2k1000-pmc
>> +              - loongson,ls2k0500-pmc
>> +          - const: syscon
>> +
>> +  reg:
>> +    maxItems: 1
>> +
>> +  interrupts:
>> +    maxItems: 1
>> +
>> +  suspend-address:
> 
> loongson,suspend-address


okay, I will use it.

> 
>> +    $ref: /schemas/types.yaml#/definitions/uint32
> 
> Isn't this a 64-bit platform? Probably better if this is a 64-bit value
> in case that's needed in the future.


okay, I got it.

Thanks,
Yinbo