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[v1,1/2] dt-bindings: serial: samsung: Add samsung,exynos8895-uart compatible

Message ID 20241020180201.376151-2-ivo.ivanov.ivanov1@gmail.com (mailing list archive)
State New
Headers show
Series tty: serial: samsung: Add Exynos8895 compatible | expand

Commit Message

Ivaylo Ivanov Oct. 20, 2024, 6:02 p.m. UTC
Add dedicated samsung,exynos8895-uart compatible to the dt-schema for
representing uart of the Exynos8895 SoC.

Like GS101, it has a required DT property samsung,uart-fifosize, but
it does not exhibit the 32 bit register access limit.

Signed-off-by: Ivaylo Ivanov <ivo.ivanov.ivanov1@gmail.com>
---
 .../bindings/serial/samsung_uart.yaml           | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

Comments

Krzysztof Kozlowski Oct. 21, 2024, 9:29 a.m. UTC | #1
On 20/10/2024 20:02, Ivaylo Ivanov wrote:
> Add dedicated samsung,exynos8895-uart compatible to the dt-schema for
> representing uart of the Exynos8895 SoC.
> 
> Like GS101, it has a required DT property samsung,uart-fifosize, but
> it does not exhibit the 32 bit register access limit.
> 
> Signed-off-by: Ivaylo Ivanov <ivo.ivanov.ivanov1@gmail.com>
> ---
>  .../bindings/serial/samsung_uart.yaml           | 17 +++++++++++++++++
>  1 file changed, 17 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/serial/samsung_uart.yaml b/Documentation/devicetree/bindings/serial/samsung_uart.yaml
> index 788c80e47..2491b6048 100644
> --- a/Documentation/devicetree/bindings/serial/samsung_uart.yaml
> +++ b/Documentation/devicetree/bindings/serial/samsung_uart.yaml
> @@ -27,6 +27,7 @@ properties:
>            - samsung,exynos4210-uart
>            - samsung,exynos5433-uart
>            - samsung,exynos850-uart
> +          - samsung,exynos8895-uart
>        - items:
>            - enum:
>                - samsung,exynos7-uart
> @@ -172,6 +173,22 @@ allOf:
>          clock-names:
>            maxItems: 2
>  
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - samsung,exynos8895-uart

This looks exactly like gs101, so please grow the enum there.

Best regards,
Krzysztof
Ivaylo Ivanov Oct. 21, 2024, 12:51 p.m. UTC | #2
On 10/21/24 12:29, Krzysztof Kozlowski wrote:
> On 20/10/2024 20:02, Ivaylo Ivanov wrote:
>> Add dedicated samsung,exynos8895-uart compatible to the dt-schema for
>> representing uart of the Exynos8895 SoC.
>>
>> Like GS101, it has a required DT property samsung,uart-fifosize, but
>> it does not exhibit the 32 bit register access limit.
>>
>> Signed-off-by: Ivaylo Ivanov <ivo.ivanov.ivanov1@gmail.com>
>> ---
>>  .../bindings/serial/samsung_uart.yaml           | 17 +++++++++++++++++
>>  1 file changed, 17 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/serial/samsung_uart.yaml b/Documentation/devicetree/bindings/serial/samsung_uart.yaml
>> index 788c80e47..2491b6048 100644
>> --- a/Documentation/devicetree/bindings/serial/samsung_uart.yaml
>> +++ b/Documentation/devicetree/bindings/serial/samsung_uart.yaml
>> @@ -27,6 +27,7 @@ properties:
>>            - samsung,exynos4210-uart
>>            - samsung,exynos5433-uart
>>            - samsung,exynos850-uart
>> +          - samsung,exynos8895-uart
>>        - items:
>>            - enum:
>>                - samsung,exynos7-uart
>> @@ -172,6 +173,22 @@ allOf:
>>          clock-names:
>>            maxItems: 2
>>  
>> +  - if:
>> +      properties:
>> +        compatible:
>> +          contains:
>> +            enum:
>> +              - samsung,exynos8895-uart
> This looks exactly like gs101, so please grow the enum there.

It's missing the reg-io-width property. My initial idea was to add a

completely new entry, so new exynos platforms that don't exhibit

the same issue could grow the enum there.

Although now that I think about it, I could grow the gs101 enum and set

theĀ  reg-io-width property for gs101 after that list.

Best regards, Ivo.

> Best regards,
> Krzysztof
>
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/serial/samsung_uart.yaml b/Documentation/devicetree/bindings/serial/samsung_uart.yaml
index 788c80e47..2491b6048 100644
--- a/Documentation/devicetree/bindings/serial/samsung_uart.yaml
+++ b/Documentation/devicetree/bindings/serial/samsung_uart.yaml
@@ -27,6 +27,7 @@  properties:
           - samsung,exynos4210-uart
           - samsung,exynos5433-uart
           - samsung,exynos850-uart
+          - samsung,exynos8895-uart
       - items:
           - enum:
               - samsung,exynos7-uart
@@ -172,6 +173,22 @@  allOf:
         clock-names:
           maxItems: 2
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - samsung,exynos8895-uart
+    then:
+      required:
+        - samsung,uart-fifosize
+      properties:
+        clocks:
+          maxItems: 2
+
+        clock-names:
+          maxItems: 2
+
 unevaluatedProperties: false
 
 examples: