linux-kernel - Re: [PATCH 1/2] dt-bindings: leds: add LED_FUNCTION

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Date: Thu, 21 Mar 2024 23:28:18 +0900
From: INAGAKI Hiroshi <musashino.open@...il.com>
To: Rob Herring <robh@...nel.org>
Cc: pavel@....cz, lee@...nel.org, krzysztof.kozlowski+dt@...aro.org,
 conor+dt@...nel.org, linux-leds@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, Hauke Mehrtens <hauke@...ke-m.de>
Subject: Re: [PATCH 1/2] dt-bindings: leds: add LED_FUNCTION_MOBILE for mobile
 network

Hello Rob Herring,

thank you for your review.

On 2024/03/21 22:55, Rob Herring wrote:
> On Wed, Mar 20, 2024 at 09:43:16PM +0900, INAGAKI Hiroshi wrote:
>> Add LED_FUNCTION_MOBILE for LEDs that indicate status of mobile network
>> connection.
>> As an example, "Mobile" LEDs on IIJ SA-W2 indicate status (no signal,
>> too low, low, good) of mobile network connection via dongle connected
>> to USB port.
>>
>> Suggested-by: Hauke Mehrtens <hauke@...ke-m.de>
>> Signed-off-by: INAGAKI Hiroshi <musashino.open@...il.com>
>> ---
>>   include/dt-bindings/leds/common.h | 1 +
>>   1 file changed, 1 insertion(+)
>>
>> diff --git a/include/dt-bindings/leds/common.h b/include/dt-bindings/leds/common.h
>> index ecea167930d9..d4b8498bde7f 100644
>> --- a/include/dt-bindings/leds/common.h
>> +++ b/include/dt-bindings/leds/common.h
>> @@ -91,6 +91,7 @@
>>   #define LED_FUNCTION_LAN "lan"
>>   #define LED_FUNCTION_MAIL "mail"
>>   #define LED_FUNCTION_MTD "mtd"
>> +#define LED_FUNCTION_MOBILE "mobile"
> Why doesn't "wan" work?

To distinguish the LEDs of mobile connection from the LEDs of wired 
wan connection.
For example, IIJ SA-W2 also supports wan connection via the ethernet 
port "GE0" (WAN) in addition to mobile network. If "wan" is used, it 
may confuse users as to which connection the LED is for.

BTW: _MOBILE should be placed before _MTD for alphabetical order, I'll 
fix it and send v2 patch series...

>
>>   #define LED_FUNCTION_PANIC "panic"
>>   #define LED_FUNCTION_PROGRAMMING "programming"
>>   #define LED_FUNCTION_RX "rx"
>> -- 
>> 2.25.1
>>

Thanks,
Hiroshi