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Message-ID: <9ca32137e42a22b016d8d417ee9e0dc024ef2aa9.camel@aceart.de>
Date:   Mon, 25 Sep 2023 16:28:12 +0200
From:   lukas walter <lukas.walter@...art.de>
To:     konrad.dybcio@...aro.org
Cc:     agross@...nel.org, andersson@...nel.org, conor+dt@...nel.org,
        devicetree@...r.kernel.org, krzysztof.kozlowski+dt@...aro.org,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        lukas.walter@...art.de, phone-devel@...r.kernel.org,
        raymondhackley@...tonmail.com, robh+dt@...nel.org,
        ~postmarketos/upstreaming@...ts.sr.ht
Subject: Re: [PATCH 2/2] arm64: dts: qcom: msm8939-huawei-kiwi: Add initial
 device tree

Date: Wed, 20 Sep 2023 16:47:30 +0200

>> +
>> +	reserved-memory {
>> +		reserved@...00000 {
>> +			reg = <0x0 0x84a00000 0x0 0x1600000>;
>> +			no-map;
>> +		};
>Do we know what this is for?

This seems to be some QSEE/TrustZone memory required to boot.
I would name it `qseecom_mem: qseecom@...00000` like other phones
currently have it.

`[    1.162115] QSEECOM: qseecom_probe: secure app region
addr=0x84a00000 size=0x1900000`

>> +	};
>> +
>> +	gpio-hall-sensor {
>> +		compatible = "gpio-keys";
>> +
>> +		pinctrl-0 = <&gpio_hall_sensor_default>;
>> +		pinctrl-names = "default";
>> +
>> +		label = "GPIO Hall Effect Sensor";
>I think we can have both hall sensor and V+ under gpio-keys
>
>And then I am not sure how useful the label is for the container
>node, maybe you or somebody else can tell me whether it's used
>anywhere
>> +
>> +		event-hall-sensor {
>> +			label = "Hall Effect Sensor";
>> +			gpios = <&tlmm 69 GPIO_ACTIVE_LOW>;
>> +			linux,input-type = <EV_SW>;
>> +			linux,code = <SW_LID>;
>> +			linux,can-disable;
>Should this not be a wakeup-source btw?

I am not sure how to change this. I would like to leave this as many
other hall sensors seem to be configured identically.

Is this fine?
Should I send a V2 with the signoff and reserved-memory changes?

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