Re: [PATCH 3/3] ARM: dts: exynos: add function and color to aat1290 flash LED node in Galaxy S3

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On 09/06/2022 22:31, Jacek Anaszewski wrote:
> Hi Krzysztof,
> 
> On 6/7/22 10:53, Krzysztof Kozlowski wrote:
>> Add common LED properties - the function and color - to aat1290 flash
>> LED node in Galaxy S3.
>>
>> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
>> ---
>>   arch/arm/boot/dts/exynos4412-galaxy-s3.dtsi | 3 +++
>>   1 file changed, 3 insertions(+)
>>
>> diff --git a/arch/arm/boot/dts/exynos4412-galaxy-s3.dtsi b/arch/arm/boot/dts/exynos4412-galaxy-s3.dtsi
>> index 72901772fcad..d76f3678dcab 100644
>> --- a/arch/arm/boot/dts/exynos4412-galaxy-s3.dtsi
>> +++ b/arch/arm/boot/dts/exynos4412-galaxy-s3.dtsi
>> @@ -7,6 +7,7 @@
>>    */
>>   
>>   /dts-v1/;
>> +#include <dt-bindings/leds/common.h>
>>   #include "exynos4412-midas.dtsi"
>>   
>>   / {
>> @@ -27,6 +28,8 @@ led-controller {
>>   
>>   		led {
>>   			label = "flash";
>> +			function = LED_FUNCTION_FLASH;
>> +			color = <LED_COLOR_ID_WHITE>;
> 
> Addition of these two properties will not change anything because
> the label has precedence. It is deprecated, but if you introduce
> function and color to the binding instead of the label, the resulting
> LED class device name will change.

Which is not necessarily what we want, right? Adding these properties is
a proper description of hardware, regardless whether current Linux
implementation uses them or not.

Best regards,
Krzysztof



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