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[PATCH 2/7] dt-bindings: pwm: restrict node name suffixes

Krzysztof Kozlowski posted 7 patches 2 years, 8 months ago
[PATCH 2/7] dt-bindings: pwm: restrict node name suffixes
Posted by Krzysztof Kozlowski 2 years, 8 months ago 
Make the pattern matching node names a bit stricter to improve DTS
consistency.  The pattern is restricted to:
1. Only one unit address or one -N suffix,
2. -N suffixes to decimal numbers.

Suggested-by: Rob Herring <robh@kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

---

Cc: Tony Lindgren <tony@atomide.com>
Cc: Oleksij Rempel <o.rempel@pengutronix.de>
---
 Documentation/devicetree/bindings/pwm/pwm.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/pwm/pwm.yaml b/Documentation/devicetree/bindings/pwm/pwm.yaml
index 3c01f85029e5..abd9fa873354 100644
--- a/Documentation/devicetree/bindings/pwm/pwm.yaml
+++ b/Documentation/devicetree/bindings/pwm/pwm.yaml
@@ -13,7 +13,7 @@ select: false
 
 properties:
   $nodename:
-    pattern: "^pwm(@.*|-[0-9a-f])*$"
+    pattern: "^pwm(@.*|-([0-9]|[1-9][0-9]+))?$"
 
   "#pwm-cells":
     description:
-- 
2.34.1
Re: [PATCH 2/7] dt-bindings: pwm: restrict node name suffixes
Posted by Rob Herring 2 years, 8 months ago 
On Tue, 30 May 2023 16:48:46 +0200, Krzysztof Kozlowski wrote:
> Make the pattern matching node names a bit stricter to improve DTS
> consistency.  The pattern is restricted to:
> 1. Only one unit address or one -N suffix,
> 2. -N suffixes to decimal numbers.
> 
> Suggested-by: Rob Herring <robh@kernel.org>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> 
> ---
> 
> Cc: Tony Lindgren <tony@atomide.com>
> Cc: Oleksij Rempel <o.rempel@pengutronix.de>
> ---
>  Documentation/devicetree/bindings/pwm/pwm.yaml | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 

Acked-by: Rob Herring <robh@kernel.org>
Re: [PATCH 2/7] dt-bindings: pwm: restrict node name suffixes
Posted by Uwe Kleine-König 2 years, 8 months ago 
On Tue, May 30, 2023 at 04:48:46PM +0200, Krzysztof Kozlowski wrote:
> Make the pattern matching node names a bit stricter to improve DTS
> consistency.  The pattern is restricted to:
> 1. Only one unit address or one -N suffix,
> 2. -N suffixes to decimal numbers.
> 
> Suggested-by: Rob Herring <robh@kernel.org>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

> 
> ---
> 
> Cc: Tony Lindgren <tony@atomide.com>
> Cc: Oleksij Rempel <o.rempel@pengutronix.de>
> ---
>  Documentation/devicetree/bindings/pwm/pwm.yaml | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/pwm/pwm.yaml b/Documentation/devicetree/bindings/pwm/pwm.yaml
> index 3c01f85029e5..abd9fa873354 100644
> --- a/Documentation/devicetree/bindings/pwm/pwm.yaml
> +++ b/Documentation/devicetree/bindings/pwm/pwm.yaml
> @@ -13,7 +13,7 @@ select: false
>  
>  properties:
>    $nodename:
> -    pattern: "^pwm(@.*|-[0-9a-f])*$"
> +    pattern: "^pwm(@.*|-([0-9]|[1-9][0-9]+))?$"

With this patch we forbid now the following patterns:

	pwm-[0-9a-f][@-].*
	pwm-0[0-9a-f]+
	pwm-[a-f]([@-].*)?

Checking for such names:

	$ git grep -oP '\bpwm-([0-9a-f][@-].*|0[0-9a-f]+|[0-9]*[a-f][0-9a-f]*)(*pla:\s*\{)' arch/*/boot/dts
	arch/arm/boot/dts/meson8.dtsi:pwm-f-ao
	arch/arm/boot/dts/meson8.dtsi:pwm-e
	arch/arm/boot/dts/meson8b.dtsi:pwm-d
	arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi:pwm-a
	arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi:pwm-b-x7
	arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi:pwm-b-x19
	arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi:pwm-c-c
	arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi:pwm-c-x5
	arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi:pwm-c-x8
	arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi:pwm-d-x3
	arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi:pwm-d-x6
	arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi:pwm-e
	arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi:pwm-f-z
	arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi:pwm-f-a
	arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi:pwm-f-x
	arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi:pwm-f-h
	arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi:pwm-a-e

These are all pinmux-settings and no pwm nodes, so the change is fine.
(But arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi isn't properly
sorted alphabetically.)

Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

Best regards and Thanks
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | https://www.pengutronix.de/ |
Re: [PATCH 2/7] dt-bindings: pwm: restrict node name suffixes
Posted by Krzysztof Kozlowski 2 years, 8 months ago 
On 07/06/2023 09:36, Uwe Kleine-König wrote:
> On Tue, May 30, 2023 at 04:48:46PM +0200, Krzysztof Kozlowski wrote:
>> Make the pattern matching node names a bit stricter to improve DTS
>> consistency.  The pattern is restricted to:
>> 1. Only one unit address or one -N suffix,
>> 2. -N suffixes to decimal numbers.
>>
>> Suggested-by: Rob Herring <robh@kernel.org>
>> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> 
>>
>> ---
>>
>> Cc: Tony Lindgren <tony@atomide.com>
>> Cc: Oleksij Rempel <o.rempel@pengutronix.de>
>> ---
>>  Documentation/devicetree/bindings/pwm/pwm.yaml | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/Documentation/devicetree/bindings/pwm/pwm.yaml b/Documentation/devicetree/bindings/pwm/pwm.yaml
>> index 3c01f85029e5..abd9fa873354 100644
>> --- a/Documentation/devicetree/bindings/pwm/pwm.yaml
>> +++ b/Documentation/devicetree/bindings/pwm/pwm.yaml
>> @@ -13,7 +13,7 @@ select: false
>>  
>>  properties:
>>    $nodename:
>> -    pattern: "^pwm(@.*|-[0-9a-f])*$"
>> +    pattern: "^pwm(@.*|-([0-9]|[1-9][0-9]+))?$"
> 
> With this patch we forbid now the following patterns:
> 
> 	pwm-[0-9a-f][@-].*
> 	pwm-0[0-9a-f]+
> 	pwm-[a-f]([@-].*)?

Yes, this was discussed last time:
https://lore.kernel.org/all/20221127182232.GA128974-robh@kernel.org/

> 
> Checking for such names:
> 
> 	$ git grep -oP '\bpwm-([0-9a-f][@-].*|0[0-9a-f]+|[0-9]*[a-f][0-9a-f]*)(*pla:\s*\{)' arch/*/boot/dts
> 	arch/arm/boot/dts/meson8.dtsi:pwm-f-ao
> 	arch/arm/boot/dts/meson8.dtsi:pwm-e
> 	arch/arm/boot/dts/meson8b.dtsi:pwm-d
> 	arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi:pwm-a
> 	arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi:pwm-b-x7
> 	arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi:pwm-b-x19
> 	arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi:pwm-c-c
> 	arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi:pwm-c-x5
> 	arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi:pwm-c-x8
> 	arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi:pwm-d-x3
> 	arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi:pwm-d-x6
> 	arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi:pwm-e
> 	arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi:pwm-f-z
> 	arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi:pwm-f-a
> 	arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi:pwm-f-x
> 	arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi:pwm-f-h
> 	arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi:pwm-a-e

Are you sure these are pwms, not pins?

> 
> These are all pinmux-settings and no pwm nodes, so the change is fine.
> (But arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi isn't properly
> sorted alphabetically.)

Exactly...

> 
> Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>


Best regards,
Krzysztof
Re: [PATCH 2/7] dt-bindings: pwm: restrict node name suffixes
Posted by Tony Lindgren 2 years, 8 months ago 
* Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> [230530 14:49]:
> Make the pattern matching node names a bit stricter to improve DTS
> consistency.  The pattern is restricted to:
> 1. Only one unit address or one -N suffix,
> 2. -N suffixes to decimal numbers.
> 
> Suggested-by: Rob Herring <robh@kernel.org>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Reviewed-by: Tony Lindgren <tony@atomide.com>

Patchew 2.1-devel-b67e4c2

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