diff mbox series

[08/14] dt-bindings: ufs: qcom: Add sm6115 binding

Message ID 20220901072414.1923075-9-iskren.chernev@gmail.com
State Superseded
Headers show
Series Add support for sm6115,4250 and OnePlus Nord N100 | expand

Commit Message

Iskren Chernev Sept. 1, 2022, 7:24 a.m. UTC
Add SM6115 UFS to DT schema.

Signed-off-by: Iskren Chernev <iskren.chernev@gmail.com>
---
 .../devicetree/bindings/ufs/qcom,ufs.yaml     | 26 +++++++++++++++++++
 1 file changed, 26 insertions(+)

Comments

Krzysztof Kozlowski Sept. 1, 2022, 4:11 p.m. UTC | #1
On 01/09/2022 10:24, Iskren Chernev wrote:
> Add SM6115 UFS to DT schema.
> 
> Signed-off-by: Iskren Chernev <iskren.chernev@gmail.com>
> ---
>  .../devicetree/bindings/ufs/qcom,ufs.yaml     | 26 +++++++++++++++++++
>  1 file changed, 26 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml b/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml
> index f2d6298d926c..7c5f6e2e6d4c 100644
> --- a/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml
> +++ b/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml
> @@ -28,6 +28,7 @@ properties:
>            - qcom,msm8998-ufshc
>            - qcom,sc8280xp-ufshc
>            - qcom,sdm845-ufshc
> +          - qcom,sm6115-ufshc
>            - qcom,sm6350-ufshc
>            - qcom,sm8150-ufshc
>            - qcom,sm8250-ufshc
> @@ -178,6 +179,31 @@ allOf:
>            minItems: 1
>            maxItems: 1
>  
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - qcom,sm6115-ufshc
> +    then:
> +      properties:
> +        clocks:
> +          minItems: 8
> +          maxItems: 8
> +        clock-names:
> +          items:
> +            - const: core_clk
> +            - const: bus_aggr_clk
> +            - const: iface_clk
> +            - const: core_clk_unipro
> +            - const: core_clk_ice

Use existing name and put it in the same place as existing variant - sdm845:
ice_core_clk


Best regards,
Krzysztof
Iskren Chernev Sept. 3, 2022, 4:54 p.m. UTC | #2
On 9/1/22 19:11, Krzysztof Kozlowski wrote:
> On 01/09/2022 10:24, Iskren Chernev wrote:
>> Add SM6115 UFS to DT schema.
>>
>> Signed-off-by: Iskren Chernev <iskren.chernev@gmail.com>
>> ---
>>  .../devicetree/bindings/ufs/qcom,ufs.yaml     | 26 +++++++++++++++++++
>>  1 file changed, 26 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml b/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml
>> index f2d6298d926c..7c5f6e2e6d4c 100644
>> --- a/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml
>> +++ b/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml
>> @@ -28,6 +28,7 @@ properties:
>>            - qcom,msm8998-ufshc
>>            - qcom,sc8280xp-ufshc
>>            - qcom,sdm845-ufshc
>> +          - qcom,sm6115-ufshc
>>            - qcom,sm6350-ufshc
>>            - qcom,sm8150-ufshc
>>            - qcom,sm8250-ufshc
>> @@ -178,6 +179,31 @@ allOf:
>>            minItems: 1
>>            maxItems: 1
>>
>> +  - if:
>> +      properties:
>> +        compatible:
>> +          contains:
>> +            enum:
>> +              - qcom,sm6115-ufshc
>> +    then:
>> +      properties:
>> +        clocks:
>> +          minItems: 8
>> +          maxItems: 8
>> +        clock-names:
>> +          items:
>> +            - const: core_clk
>> +            - const: bus_aggr_clk
>> +            - const: iface_clk
>> +            - const: core_clk_unipro
>> +            - const: core_clk_ice
>
> Use existing name and put it in the same place as existing variant - sdm845:
> ice_core_clk

The only problem with sdm845 bindings is the presence of rx_lane1_sync_clk
clock. I'm guessing I could pass zeros there, because it shouldn't be used. Or
it could be moved to last property and then min/maxItems to guard, but that is
a change to something more-or-less immutable.

> Best regards,
> Krzysztof

Regards,
Iskren
Krzysztof Kozlowski Sept. 4, 2022, 7:10 p.m. UTC | #3
On 03/09/2022 19:54, Iskren Chernev wrote:
> 
> 
> On 9/1/22 19:11, Krzysztof Kozlowski wrote:
>> On 01/09/2022 10:24, Iskren Chernev wrote:
>>> Add SM6115 UFS to DT schema.
>>>
>>> Signed-off-by: Iskren Chernev <iskren.chernev@gmail.com>
>>> ---
>>>  .../devicetree/bindings/ufs/qcom,ufs.yaml     | 26 +++++++++++++++++++
>>>  1 file changed, 26 insertions(+)
>>>
>>> diff --git a/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml b/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml
>>> index f2d6298d926c..7c5f6e2e6d4c 100644
>>> --- a/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml
>>> +++ b/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml
>>> @@ -28,6 +28,7 @@ properties:
>>>            - qcom,msm8998-ufshc
>>>            - qcom,sc8280xp-ufshc
>>>            - qcom,sdm845-ufshc
>>> +          - qcom,sm6115-ufshc
>>>            - qcom,sm6350-ufshc
>>>            - qcom,sm8150-ufshc
>>>            - qcom,sm8250-ufshc
>>> @@ -178,6 +179,31 @@ allOf:
>>>            minItems: 1
>>>            maxItems: 1
>>>
>>> +  - if:
>>> +      properties:
>>> +        compatible:
>>> +          contains:
>>> +            enum:
>>> +              - qcom,sm6115-ufshc
>>> +    then:
>>> +      properties:
>>> +        clocks:
>>> +          minItems: 8
>>> +          maxItems: 8
>>> +        clock-names:
>>> +          items:
>>> +            - const: core_clk
>>> +            - const: bus_aggr_clk
>>> +            - const: iface_clk
>>> +            - const: core_clk_unipro
>>> +            - const: core_clk_ice
>>
>> Use existing name and put it in the same place as existing variant - sdm845:
>> ice_core_clk
> 
> The only problem with sdm845 bindings is the presence of rx_lane1_sync_clk
> clock. I'm guessing I could pass zeros there, because it shouldn't be used. Or
> it could be moved to last property and then min/maxItems to guard, but that is
> a change to something more-or-less immutable.

I don't understand - what is the problem here. How presence of some
clock affects name of other clock and its place/location in list of clocks?


Best regards,
Krzysztof
Iskren Chernev Sept. 5, 2022, 7:29 a.m. UTC | #4
On 9/4/22 22:10, Krzysztof Kozlowski wrote:
> On 03/09/2022 19:54, Iskren Chernev wrote:
>>
>>
>> On 9/1/22 19:11, Krzysztof Kozlowski wrote:
>>> On 01/09/2022 10:24, Iskren Chernev wrote:
>>>> Add SM6115 UFS to DT schema.
>>>>
>>>> Signed-off-by: Iskren Chernev <iskren.chernev@gmail.com>
>>>> ---
>>>>  .../devicetree/bindings/ufs/qcom,ufs.yaml     | 26 +++++++++++++++++++
>>>>  1 file changed, 26 insertions(+)
>>>>
>>>> diff --git a/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml b/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml
>>>> index f2d6298d926c..7c5f6e2e6d4c 100644
>>>> --- a/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml
>>>> +++ b/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml
>>>> @@ -28,6 +28,7 @@ properties:
>>>>            - qcom,msm8998-ufshc
>>>>            - qcom,sc8280xp-ufshc
>>>>            - qcom,sdm845-ufshc
>>>> +          - qcom,sm6115-ufshc
>>>>            - qcom,sm6350-ufshc
>>>>            - qcom,sm8150-ufshc
>>>>            - qcom,sm8250-ufshc
>>>> @@ -178,6 +179,31 @@ allOf:
>>>>            minItems: 1
>>>>            maxItems: 1
>>>>
>>>> +  - if:
>>>> +      properties:
>>>> +        compatible:
>>>> +          contains:
>>>> +            enum:
>>>> +              - qcom,sm6115-ufshc
>>>> +    then:
>>>> +      properties:
>>>> +        clocks:
>>>> +          minItems: 8
>>>> +          maxItems: 8
>>>> +        clock-names:
>>>> +          items:
>>>> +            - const: core_clk
>>>> +            - const: bus_aggr_clk
>>>> +            - const: iface_clk
>>>> +            - const: core_clk_unipro
>>>> +            - const: core_clk_ice
>>>
>>> Use existing name and put it in the same place as existing variant - sdm845:
>>> ice_core_clk
>>
>> The only problem with sdm845 bindings is the presence of rx_lane1_sync_clk
>> clock. I'm guessing I could pass zeros there, because it shouldn't be used. Or
>> it could be moved to last property and then min/maxItems to guard, but that is
>> a change to something more-or-less immutable.
>
> I don't understand - what is the problem here. How presence of some
> clock affects name of other clock and its place/location in list of clocks?

qcom,sdm845-ufshc has 9 clocks, one of which is rx_lane1_sync_clk.
qcom,sm6115-ufshc has 8 clocks (all of the ones in sdm845 without
rx_lane1_sync_clk). So if I'm understanding correctly, you want to put the
sm6115 with sdm845, which means re-use the clocks and reg specification from
sdm845, which means sm6115 will "inherit" this rx_lane1_sync_clk, and then
I have to put it in DT (otherwise the schema would complain), and I'm asking if
I can put an empty (i.e <0 0>) value, so schema is satisfied but clock is still
not really passed.

> Best regards,
> Krzysztof
Krzysztof Kozlowski Sept. 5, 2022, 10:03 a.m. UTC | #5
On 05/09/2022 09:29, Iskren Chernev wrote:
> 
> 
> On 9/4/22 22:10, Krzysztof Kozlowski wrote:
>> On 03/09/2022 19:54, Iskren Chernev wrote:
>>>
>>>
>>> On 9/1/22 19:11, Krzysztof Kozlowski wrote:
>>>> On 01/09/2022 10:24, Iskren Chernev wrote:
>>>>> Add SM6115 UFS to DT schema.
>>>>>
>>>>> Signed-off-by: Iskren Chernev <iskren.chernev@gmail.com>
>>>>> ---
>>>>>  .../devicetree/bindings/ufs/qcom,ufs.yaml     | 26 +++++++++++++++++++
>>>>>  1 file changed, 26 insertions(+)
>>>>>
>>>>> diff --git a/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml b/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml
>>>>> index f2d6298d926c..7c5f6e2e6d4c 100644
>>>>> --- a/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml
>>>>> +++ b/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml
>>>>> @@ -28,6 +28,7 @@ properties:
>>>>>            - qcom,msm8998-ufshc
>>>>>            - qcom,sc8280xp-ufshc
>>>>>            - qcom,sdm845-ufshc
>>>>> +          - qcom,sm6115-ufshc
>>>>>            - qcom,sm6350-ufshc
>>>>>            - qcom,sm8150-ufshc
>>>>>            - qcom,sm8250-ufshc
>>>>> @@ -178,6 +179,31 @@ allOf:
>>>>>            minItems: 1
>>>>>            maxItems: 1
>>>>>
>>>>> +  - if:
>>>>> +      properties:
>>>>> +        compatible:
>>>>> +          contains:
>>>>> +            enum:
>>>>> +              - qcom,sm6115-ufshc
>>>>> +    then:
>>>>> +      properties:
>>>>> +        clocks:
>>>>> +          minItems: 8
>>>>> +          maxItems: 8
>>>>> +        clock-names:
>>>>> +          items:
>>>>> +            - const: core_clk
>>>>> +            - const: bus_aggr_clk
>>>>> +            - const: iface_clk
>>>>> +            - const: core_clk_unipro
>>>>> +            - const: core_clk_ice
>>>>
>>>> Use existing name and put it in the same place as existing variant - sdm845:
>>>> ice_core_clk
>>>
>>> The only problem with sdm845 bindings is the presence of rx_lane1_sync_clk
>>> clock. I'm guessing I could pass zeros there, because it shouldn't be used. Or
>>> it could be moved to last property and then min/maxItems to guard, but that is
>>> a change to something more-or-less immutable.
>>
>> I don't understand - what is the problem here. How presence of some
>> clock affects name of other clock and its place/location in list of clocks?
> 
> qcom,sdm845-ufshc has 9 clocks, one of which is rx_lane1_sync_clk.
> qcom,sm6115-ufshc has 8 clocks (all of the ones in sdm845 without
> rx_lane1_sync_clk). So if I'm understanding correctly, you want to put the
> sm6115 with sdm845, which means re-use the clocks and reg specification from
> sdm845, which means sm6115 will "inherit" this rx_lane1_sync_clk, and then
> I have to put it in DT (otherwise the schema would complain), and I'm asking if
> I can put an empty (i.e <0 0>) value, so schema is satisfied but clock is still
> not really passed.

No. I want to use the same order and naming as sdm845 variant, but in
your own/dedicated if:else: entry. Just do not create inconsistencies
when not needed. If inconsistency is needed here (which I think is not),
please explain more.

Best regards,
Krzysztof
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml b/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml
index f2d6298d926c..7c5f6e2e6d4c 100644
--- a/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml
+++ b/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml
@@ -28,6 +28,7 @@  properties:
           - qcom,msm8998-ufshc
           - qcom,sc8280xp-ufshc
           - qcom,sdm845-ufshc
+          - qcom,sm6115-ufshc
           - qcom,sm6350-ufshc
           - qcom,sm8150-ufshc
           - qcom,sm8250-ufshc
@@ -178,6 +179,31 @@  allOf:
           minItems: 1
           maxItems: 1
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,sm6115-ufshc
+    then:
+      properties:
+        clocks:
+          minItems: 8
+          maxItems: 8
+        clock-names:
+          items:
+            - const: core_clk
+            - const: bus_aggr_clk
+            - const: iface_clk
+            - const: core_clk_unipro
+            - const: core_clk_ice
+            - const: ref_clk
+            - const: tx_lane0_sync_clk
+            - const: rx_lane0_sync_clk
+        reg:
+          minItems: 1
+          maxItems: 1
+
     # TODO: define clock bindings for qcom,msm8994-ufshc
 
 unevaluatedProperties: false