linux-kernel - Re: [PATCH v3 6/9] ARM: dts: stm32: add Hardware debug port (HDP) on stm32mp15

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Message-ID: <ef481451-b7d2-4f9a-a3d0-c67e8f5061dd@foss.st.com>
Date: Wed, 28 May 2025 14:15:58 +0200
From: Clement LE GOFFIC <clement.legoffic@...s.st.com>
To: Krzysztof Kozlowski <krzk@...nel.org>,
        Linus Walleij
	<linus.walleij@...aro.org>,
        Rob Herring <robh@...nel.org>,
        Krzysztof
 Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Maxime
 Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue
	<alexandre.torgue@...s.st.com>,
        Bartosz Golaszewski <brgl@...ev.pl>
CC: <linux-kernel@...r.kernel.org>, <linux-gpio@...r.kernel.org>,
        <devicetree@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v3 6/9] ARM: dts: stm32: add Hardware debug port (HDP) on
 stm32mp15

On 5/28/25 11:00, Krzysztof Kozlowski wrote:
> On 23/05/2025 14:38, Clément Le Goffic wrote:
>> Add the hdp devicetree node for stm32mp15 SoC family
>>
>> Signed-off-by: Clément Le Goffic <clement.legoffic@...s.st.com>
>> ---
>>   arch/arm/boot/dts/st/stm32mp151.dtsi | 7 +++++++
>>   1 file changed, 7 insertions(+)
>>
>> diff --git a/arch/arm/boot/dts/st/stm32mp151.dtsi b/arch/arm/boot/dts/st/stm32mp151.dtsi
>> index 0daa8ffe2ff5..b1b568dfd126 100644
>> --- a/arch/arm/boot/dts/st/stm32mp151.dtsi
>> +++ b/arch/arm/boot/dts/st/stm32mp151.dtsi
>> @@ -270,6 +270,13 @@ dts: thermal@...28000 {
>>   			status = "disabled";
>>   		};
>>   
>> +		hdp: pinctrl@...2a000 {
>> +			compatible = "st,stm32mp151-hdp";
>> +			reg = <0x5002a000 0x400>;
>> +			clocks = <&rcc HDP>;
>> +			status = "disabled";
> 
> Same questions here and in further patches.

Same, disabled by default and enable in board's dts file

> 
> Best regards,
> Krzysztof

Clément