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Message-ID: <a105ba2b-a809-4a6e-84fc-f67eb11606be@linaro.org>
Date: Mon, 29 Apr 2024 10:50:16 +0200
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Subject: Re: [PATCH] sh: j2: drop incorrect SPI controller max frequency
 property
To: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>,
 Rob Herring <robh@kernel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
 Conor Dooley <conor+dt@kernel.org>,
 Yoshinori Sato <ysato@users.sourceforge.jp>, Rich Felker <dalias@libc.org>,
 devicetree@vger.kernel.org, linux-sh@vger.kernel.org,
 linux-kernel@vger.kernel.org
Cc: Kousik Sanagavarapu <five231003@gmail.com>
References: <20240322064221.25776-1-krzysztof.kozlowski@linaro.org>
 <d6b562f336b3750c131830a984b148ea7103ab0d.camel@physik.fu-berlin.de>
From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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In-Reply-To: <d6b562f336b3750c131830a984b148ea7103ab0d.camel@physik.fu-berlin.de>
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On 29/04/2024 10:16, John Paul Adrian Glaubitz wrote:
> On Fri, 2024-03-22 at 07:42 +0100, Krzysztof Kozlowski wrote:
>> The J2 SPI controller bindings never allowed spi-max-frequency property
>> in the controller node.  Neither old spi-bus.txt bindings, nor new DT
>> schema allows it.  Linux driver does not parse that property from
>> controller node, thus drop it from DTS as incorrect hardware
>> description.  The SPI child device has already the same property with
>> the same value, so functionality should not be affected.
>>
>> Cc: Kousik Sanagavarapu <five231003@gmail.com>
>> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
>> ---
>>  arch/sh/boot/dts/j2_mimas_v2.dts | 2 --
>>  1 file changed, 2 deletions(-)
>>
>> diff --git a/arch/sh/boot/dts/j2_mimas_v2.dts b/arch/sh/boot/dts/j2_mimas_v2.dts
>> index fa9562f78d53..faf884f53804 100644
>> --- a/arch/sh/boot/dts/j2_mimas_v2.dts
>> +++ b/arch/sh/boot/dts/j2_mimas_v2.dts
>> @@ -71,8 +71,6 @@ spi0: spi@40 {
>>  			#address-cells = <1>;
>>  			#size-cells = <0>;
>>  
>> -			spi-max-frequency = <25000000>;
>> -
>>  			reg = <0x40 0x8>;
>>  
>>  			sdcard@0 {
> 
> It seems that spi-bus.txt has been replaced by spi-controller.yaml now, so
> I think we should update the filename in the commit message, shouldn't we?

I think commit msg properly says what is old and what is new....

Best regards,
Krzysztof