[PATCH 1/5] dt-bindings: samsung: exynos-sysreg: add exynos7870 sysregs

Kaustabh Chakraborty posted 5 patches 4 months ago
There is a newer version of this series
[PATCH 1/5] dt-bindings: samsung: exynos-sysreg: add exynos7870 sysregs
Posted by Kaustabh Chakraborty 4 months ago
Add sysreg compatible strings for the Exynos7870 SoC. Two sysregs are
added, used for the SoC MIPI PHY's CSIS and DSIM blocks.

Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
---
 .../devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml      | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml b/Documentation/devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml
index d27ed6c9d61ea9db77229eca60b6b9a0abc5d305..174bdb8ee932ff965de6fc17aef004a3cedffeb3 100644
--- a/Documentation/devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml
+++ b/Documentation/devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml
@@ -52,6 +52,12 @@ properties:
               - samsung,exynosautov9-sysreg
           - const: syscon
         deprecated: true
+      - items:
+          - enum:
+              - samsung,exynos7870-cam-sysreg
+              - samsung,exynos7870-disp-sysreg
+          - const: samsung,exynos7870-sysreg
+          - const: syscon
       - items:
           - enum:
               - samsung,exynos850-cmgp-sysreg

-- 
2.49.0
Re: [PATCH 1/5] dt-bindings: samsung: exynos-sysreg: add exynos7870 sysregs
Posted by Krzysztof Kozlowski 3 months, 3 weeks ago
On 12/06/2025 17:23, Kaustabh Chakraborty wrote:
> Add sysreg compatible strings for the Exynos7870 SoC. Two sysregs are
> added, used for the SoC MIPI PHY's CSIS and DSIM blocks.
> 
> Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
> ---
>  .../devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml      | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml b/Documentation/devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml
> index d27ed6c9d61ea9db77229eca60b6b9a0abc5d305..174bdb8ee932ff965de6fc17aef004a3cedffeb3 100644
> --- a/Documentation/devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml
> +++ b/Documentation/devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml
> @@ -52,6 +52,12 @@ properties:
>                - samsung,exynosautov9-sysreg
>            - const: syscon
>          deprecated: true
> +      - items:
> +          - enum:
> +              - samsung,exynos7870-cam-sysreg
> +              - samsung,exynos7870-disp-sysreg
> +          - const: samsung,exynos7870-sysreg


Drop. These are not really compatible or your commit msg is incomplete.
Don't use deprecated syntax and backwards compatible solutions for new
hardware.

Best regards,
Krzysztof
Re: [PATCH 1/5] dt-bindings: samsung: exynos-sysreg: add exynos7870 sysregs
Posted by Kaustabh Chakraborty 3 months, 3 weeks ago
On 2025-06-18 09:46, Krzysztof Kozlowski wrote:
> On 12/06/2025 17:23, Kaustabh Chakraborty wrote:
>> Add sysreg compatible strings for the Exynos7870 SoC. Two sysregs are
>> added, used for the SoC MIPI PHY's CSIS and DSIM blocks.
>> 
>> Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
>> ---
>>  .../devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml      | 6 ++++++
>>  1 file changed, 6 insertions(+)
>> 
>> diff --git a/Documentation/devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml b/Documentation/devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml
>> index d27ed6c9d61ea9db77229eca60b6b9a0abc5d305..174bdb8ee932ff965de6fc17aef004a3cedffeb3 100644
>> --- a/Documentation/devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml
>> +++ b/Documentation/devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml
>> @@ -52,6 +52,12 @@ properties:
>>                - samsung,exynosautov9-sysreg
>>            - const: syscon
>>          deprecated: true
>> +      - items:
>> +          - enum:
>> +              - samsung,exynos7870-cam-sysreg
>> +              - samsung,exynos7870-disp-sysreg
>> +          - const: samsung,exynos7870-sysreg
> 
> 
> Drop. These are not really compatible or your commit msg is incomplete.
> Don't use deprecated syntax and backwards compatible solutions for new
> hardware.

Are you sure? The deprecated one is actually the item above. From what I
understand, those are generic sysregs and don't mention their functions.

      - items:
          - enum:
              - samsung,exynos5433-sysreg
              - samsung,exynos850-sysreg
              - samsung,exynosautov9-sysreg
          - const: syscon
        deprecated: true

> 
> Best regards,
> Krzysztof
Re: [PATCH 1/5] dt-bindings: samsung: exynos-sysreg: add exynos7870 sysregs
Posted by Krzysztof Kozlowski 3 months, 3 weeks ago
On 18/06/2025 16:32, Kaustabh Chakraborty wrote:
> On 2025-06-18 09:46, Krzysztof Kozlowski wrote:
>> On 12/06/2025 17:23, Kaustabh Chakraborty wrote:
>>> Add sysreg compatible strings for the Exynos7870 SoC. Two sysregs are
>>> added, used for the SoC MIPI PHY's CSIS and DSIM blocks.
>>>
>>> Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
>>> ---
>>>  .../devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml      | 6 ++++++
>>>  1 file changed, 6 insertions(+)
>>>
>>> diff --git a/Documentation/devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml b/Documentation/devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml
>>> index d27ed6c9d61ea9db77229eca60b6b9a0abc5d305..174bdb8ee932ff965de6fc17aef004a3cedffeb3 100644
>>> --- a/Documentation/devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml
>>> +++ b/Documentation/devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml
>>> @@ -52,6 +52,12 @@ properties:
>>>                - samsung,exynosautov9-sysreg
>>>            - const: syscon
>>>          deprecated: true
>>> +      - items:
>>> +          - enum:
>>> +              - samsung,exynos7870-cam-sysreg
>>> +              - samsung,exynos7870-disp-sysreg
>>> +          - const: samsung,exynos7870-sysreg
>>
>>
>> Drop. These are not really compatible or your commit msg is incomplete.
>> Don't use deprecated syntax and backwards compatible solutions for new
>> hardware.
> 
> Are you sure? The deprecated one is actually the item above. From what I

Yes. Think why were they added.

> understand, those are generic sysregs and don't mention their functions.

And what is a generic sysreg?

Best regards,
Krzysztof
Re: [PATCH 1/5] dt-bindings: samsung: exynos-sysreg: add exynos7870 sysregs
Posted by Kaustabh Chakraborty 3 months, 3 weeks ago
On 2025-06-18 14:37, Krzysztof Kozlowski wrote:
> On 18/06/2025 16:32, Kaustabh Chakraborty wrote:
>> On 2025-06-18 09:46, Krzysztof Kozlowski wrote:
>>> On 12/06/2025 17:23, Kaustabh Chakraborty wrote:
>>>> Add sysreg compatible strings for the Exynos7870 SoC. Two sysregs 
>>>> are
>>>> added, used for the SoC MIPI PHY's CSIS and DSIM blocks.
>>>> 
>>>> Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
>>>> ---
>>>>  .../devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml      
>>>> | 6 ++++++
>>>>  1 file changed, 6 insertions(+)
>>>> 
>>>> diff --git 
>>>> a/Documentation/devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml 
>>>> b/Documentation/devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml
>>>> index 
>>>> d27ed6c9d61ea9db77229eca60b6b9a0abc5d305..174bdb8ee932ff965de6fc17aef004a3cedffeb3 
>>>> 100644
>>>> --- 
>>>> a/Documentation/devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml
>>>> +++ 
>>>> b/Documentation/devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml
>>>> @@ -52,6 +52,12 @@ properties:
>>>>                - samsung,exynosautov9-sysreg
>>>>            - const: syscon
>>>>          deprecated: true
>>>> +      - items:
>>>> +          - enum:
>>>> +              - samsung,exynos7870-cam-sysreg
>>>> +              - samsung,exynos7870-disp-sysreg
>>>> +          - const: samsung,exynos7870-sysreg
>>> 
>>> 
>>> Drop. These are not really compatible or your commit msg is 
>>> incomplete.
>>> Don't use deprecated syntax and backwards compatible solutions for 
>>> new
>>> hardware.
>> 
>> Are you sure? The deprecated one is actually the item above. From what 
>> I
> 
> Yes. Think why were they added.
> 
>> understand, those are generic sysregs and don't mention their 
>> functions.
> 
> And what is a generic sysreg?

What I meant is, usually compatibles go like this (in order):

"samsung,exynos<soc>-<function>-sysreg", "samsung,exynos<soc>-sysreg", 
"syscon"

But the deprecated item had its compatibles like this:

"samsung,exynos<soc>-sysreg", "syscon"

That is what I meant by "generic". It doesn't mention <function>.

And my additions adhere to the former. So does [1], [2], and [3]. None 
are
deprecated.

[1] 
https://elixir.bootlin.com/linux/v6.15.2/source/Documentation/devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml#L40
[2] 
https://elixir.bootlin.com/linux/v6.15.2/source/Documentation/devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml#L55
[3] 
https://elixir.bootlin.com/linux/v6.15.2/source/Documentation/devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml#L61

> 
> Best regards,
> Krzysztof
Re: [PATCH 1/5] dt-bindings: samsung: exynos-sysreg: add exynos7870 sysregs
Posted by Krzysztof Kozlowski 3 months, 3 weeks ago
On 18/06/2025 16:49, Kaustabh Chakraborty wrote:
> On 2025-06-18 14:37, Krzysztof Kozlowski wrote:
>> On 18/06/2025 16:32, Kaustabh Chakraborty wrote:
>>> On 2025-06-18 09:46, Krzysztof Kozlowski wrote:
>>>> On 12/06/2025 17:23, Kaustabh Chakraborty wrote:
>>>>> Add sysreg compatible strings for the Exynos7870 SoC. Two sysregs 
>>>>> are
>>>>> added, used for the SoC MIPI PHY's CSIS and DSIM blocks.
>>>>>
>>>>> Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
>>>>> ---
>>>>>  .../devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml      
>>>>> | 6 ++++++
>>>>>  1 file changed, 6 insertions(+)
>>>>>
>>>>> diff --git 
>>>>> a/Documentation/devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml 
>>>>> b/Documentation/devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml
>>>>> index 
>>>>> d27ed6c9d61ea9db77229eca60b6b9a0abc5d305..174bdb8ee932ff965de6fc17aef004a3cedffeb3 
>>>>> 100644
>>>>> --- 
>>>>> a/Documentation/devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml
>>>>> +++ 
>>>>> b/Documentation/devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml
>>>>> @@ -52,6 +52,12 @@ properties:
>>>>>                - samsung,exynosautov9-sysreg
>>>>>            - const: syscon
>>>>>          deprecated: true
>>>>> +      - items:
>>>>> +          - enum:
>>>>> +              - samsung,exynos7870-cam-sysreg
>>>>> +              - samsung,exynos7870-disp-sysreg
>>>>> +          - const: samsung,exynos7870-sysreg
>>>>
>>>>
>>>> Drop. These are not really compatible or your commit msg is 
>>>> incomplete.
>>>> Don't use deprecated syntax and backwards compatible solutions for 
>>>> new
>>>> hardware.
>>>
>>> Are you sure? The deprecated one is actually the item above. From what 
>>> I
>>
>> Yes. Think why were they added.
>>
>>> understand, those are generic sysregs and don't mention their 
>>> functions.
>>
>> And what is a generic sysreg?
> 
> What I meant is, usually compatibles go like this (in order):

No, they don't. So you checked why they were added?

Best regards,
Krzysztof
Re: [PATCH 1/5] dt-bindings: samsung: exynos-sysreg: add exynos7870 sysregs
Posted by Kaustabh Chakraborty 3 months, 3 weeks ago
On 2025-06-18 15:40, Krzysztof Kozlowski wrote:
> On 18/06/2025 16:49, Kaustabh Chakraborty wrote:
>> On 2025-06-18 14:37, Krzysztof Kozlowski wrote:
>>> On 18/06/2025 16:32, Kaustabh Chakraborty wrote:
>>>> On 2025-06-18 09:46, Krzysztof Kozlowski wrote:
>>>>> On 12/06/2025 17:23, Kaustabh Chakraborty wrote:
>>>>>> Add sysreg compatible strings for the Exynos7870 SoC. Two sysregs
>>>>>> are
>>>>>> added, used for the SoC MIPI PHY's CSIS and DSIM blocks.
>>>>>> 
>>>>>> Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
>>>>>> ---
>>>>>>  .../devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml
>>>>>> | 6 ++++++
>>>>>>  1 file changed, 6 insertions(+)
>>>>>> 
>>>>>> diff --git
>>>>>> a/Documentation/devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml
>>>>>> b/Documentation/devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml
>>>>>> index
>>>>>> d27ed6c9d61ea9db77229eca60b6b9a0abc5d305..174bdb8ee932ff965de6fc17aef004a3cedffeb3
>>>>>> 100644
>>>>>> ---
>>>>>> a/Documentation/devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml
>>>>>> +++
>>>>>> b/Documentation/devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml
>>>>>> @@ -52,6 +52,12 @@ properties:
>>>>>>                - samsung,exynosautov9-sysreg
>>>>>>            - const: syscon
>>>>>>          deprecated: true
>>>>>> +      - items:
>>>>>> +          - enum:
>>>>>> +              - samsung,exynos7870-cam-sysreg
>>>>>> +              - samsung,exynos7870-disp-sysreg
>>>>>> +          - const: samsung,exynos7870-sysreg
>>>>> 
>>>>> 
>>>>> Drop. These are not really compatible or your commit msg is
>>>>> incomplete.
>>>>> Don't use deprecated syntax and backwards compatible solutions for
>>>>> new
>>>>> hardware.
>>>> 
>>>> Are you sure? The deprecated one is actually the item above. From 
>>>> what
>>>> I
>>> 
>>> Yes. Think why were they added.
>>> 
>>>> understand, those are generic sysregs and don't mention their
>>>> functions.
>>> 
>>> And what is a generic sysreg?
>> 
>> What I meant is, usually compatibles go like this (in order):
> 
> No, they don't. So you checked why they were added?

Checked it, understood. It's meant to be:
"samsung,exynos<soc>-<function>-sysreg", "syscon"

> 
> Best regards,
> Krzysztof