diff mbox series

[V3,3/6] dt-bindings: serial: meson: Support S4 SoC uart. Also Drop compatible = amlogic,meson-gx-uart.

Message ID 20211230102110.3861-4-yu.tu@amlogic.com
State Superseded
Headers show
Series the UART driver compatible with the Amlogic Meson | expand

Commit Message

Yu Tu Dec. 30, 2021, 10:21 a.m. UTC
Deprecated, don't use anymore because compatible = amlogic,meson-gx-uart
don't differentiate between GXBB and GXL which have different
revisions of the UART IP. So it's split into GXBB and GXL.

Signed-off-by: Yu Tu <yu.tu@amlogic.com>
---
 .../devicetree/bindings/serial/amlogic,meson-uart.yaml | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

Comments

Martin Blumenstingl Dec. 30, 2021, 10:34 p.m. UTC | #1
Hello,

as Greg already mentioned the $subject line is very long.

On Thu, Dec 30, 2021 at 11:21 AM Yu Tu <yu.tu@amlogic.com> wrote:
> Deprecated, don't use anymore because compatible = amlogic,meson-gx-uart
> don't differentiate between GXBB and GXL which have different
> revisions of the UART IP. So it's split into GXBB and GXL.
actually it's split into GXBB, GXL and G12A

[...]
> -              - amlogic,meson-gx-uart
> +              - amlogic,meson-gxbb-uart
> +              - amlogic,meson-gxl-uart
> +              - amlogic,meson-g12a-uart
> +              - amlogic,meson-s4-uart
In addition to Greg's comment I suggest splitting this into two patches:
- one where the "amlogic,meson-gx-uart" compatible is marked as
deprecated (Documentation/devicetree/bindings/power/supply/bq27xxx.yaml
has an example for deprecated entries) and GXBB, GXL and G12A
compatible strings are added instead
- another one where the new S4 compatible string is added

The idea here is to have "one logical change per patch".
Deprecating and replacing "amlogic,meson-gx-uart" is one logical change.
Adding a new compatible string is another logical change.
I am hoping that this will also make it easier to find a shorter
$subject line (which according to the patch submission guide [0]
should be 70-75 characters: "the summary must be no more than 70-75
characters")


Best regards,
Martin


[0] https://www.kernel.org/doc/html/v4.17/process/submitting-patches.html#the-canonical-patch-format
Yu Tu Dec. 31, 2021, 10:18 a.m. UTC | #2
Hi Greg,
	Thank you for your reply.

On 2021/12/30 20:28, Greg Kroah-Hartman wrote:
> [ EXTERNAL EMAIL ]
> 
> On Thu, Dec 30, 2021 at 06:21:07PM +0800, Yu Tu wrote:
>> Deprecated, don't use anymore because compatible = amlogic,meson-gx-uart
>> don't differentiate between GXBB and GXL which have different
>> revisions of the UART IP. So it's split into GXBB and GXL.
>>
>> Signed-off-by: Yu Tu <yu.tu@amlogic.com>
>> ---
>>   .../devicetree/bindings/serial/amlogic,meson-uart.yaml | 10 ++++++++--
>>   1 file changed, 8 insertions(+), 2 deletions(-)
> 
> Again, your subject line is way too long.
> 
I will correct.
> thanks,
> 
> greg k-h
>
Yu Tu Dec. 31, 2021, 10:35 a.m. UTC | #3
On 2021/12/31 6:34, Martin Blumenstingl wrote:
> [ EXTERNAL EMAIL ]
> 
> Hello,
> 
> as Greg already mentioned the $subject line is very long.
> 
> On Thu, Dec 30, 2021 at 11:21 AM Yu Tu <yu.tu@amlogic.com> wrote:
>> Deprecated, don't use anymore because compatible = amlogic,meson-gx-uart
>> don't differentiate between GXBB and GXL which have different
>> revisions of the UART IP. So it's split into GXBB and GXL.
> actually it's split into GXBB, GXL and G12A
> 
> [...]
>> -              - amlogic,meson-gx-uart
>> +              - amlogic,meson-gxbb-uart
>> +              - amlogic,meson-gxl-uart
>> +              - amlogic,meson-g12a-uart
>> +              - amlogic,meson-s4-uart
> In addition to Greg's comment I suggest splitting this into two patches:
> - one where the "amlogic,meson-gx-uart" compatible is marked as
> deprecated (Documentation/devicetree/bindings/power/supply/bq27xxx.yaml
> has an example for deprecated entries) and GXBB, GXL and G12A
> compatible strings are added instead
> - another one where the new S4 compatible string is added
> 
> The idea here is to have "one logical change per patch".
> Deprecating and replacing "amlogic,meson-gx-uart" is one logical change.
> Adding a new compatible string is another logical change.
> I am hoping that this will also make it easier to find a shorter
> $subject line (which according to the patch submission guide [0]
> should be 70-75 characters: "the summary must be no more than 70-75
> characters")
> 
I will split the two patches in the next version.One was deprecating and 
replacing "AmLogic, Meson-GX-Uart" and the other added S4 compatible.
> 
> Best regards,
> Martin
> 
> 
> [0] https://www.kernel.org/doc/html/v4.17/process/submitting-patches.html#the-canonical-patch-format
>
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml b/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml
index 75ebc9952a99..b03040a83a9f 100644
--- a/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml
+++ b/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml
@@ -28,14 +28,20 @@  properties:
               - amlogic,meson6-uart
               - amlogic,meson8-uart
               - amlogic,meson8b-uart
-              - amlogic,meson-gx-uart
+              - amlogic,meson-gxbb-uart
+              - amlogic,meson-gxl-uart
+              - amlogic,meson-g12a-uart
+              - amlogic,meson-s4-uart
           - const: amlogic,meson-ao-uart
       - description: Everything-Else power domain UART controller
         enum:
           - amlogic,meson6-uart
           - amlogic,meson8-uart
           - amlogic,meson8b-uart
-          - amlogic,meson-gx-uart
+          - amlogic,meson-gxbb-uart
+          - amlogic,meson-gxl-uart
+          - amlogic,meson-g12a-uart
+          - amlogic,meson-s4-uart
 
   reg:
     maxItems: 1