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Message-ID: <20221213111119.g3lzt5heevfarvf7@SoMainline.org>
Date:   Tue, 13 Dec 2022 12:11:19 +0100
From:   Marijn Suijten <marijn.suijten@...ainline.org>
To:     Konrad Dybcio <konrad.dybcio@...aro.org>
Cc:     linux-arm-msm@...r.kernel.org, andersson@...nel.org,
        agross@...nel.org, krzysztof.kozlowski@...aro.org,
        patches@...aro.org, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64: dts: qcom: sm8350-sagami: Rectify GPIO keys

On 2022-12-13 11:23:12, Konrad Dybcio wrote:
> 
> 
> On 13.12.2022 10:03, Marijn Suijten wrote:
> > On 2022-12-10 14:38:50, Konrad Dybcio wrote:
> >> With enough pins set properly, the hardware buttons now also work
> >> like a charm.
> >>
> >> Fixes: c2721b0c23d9 ("arm64: dts: qcom: Add support for Xperia 1 III / 5 III")
> >> Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
> > 
> > Tested-by: Marijn Suijten <marijn.suijten@...ainline.org> # On Xperia 5 III
> > 
> > However I also tested this on Xperia 1 III, and...
> > 
> >> ---
> >>  .../qcom/sm8350-sony-xperia-sagami-pdx214.dts | 24 ++++++++++
> >>  .../dts/qcom/sm8350-sony-xperia-sagami.dtsi   | 47 ++++++++++++++++++-
> >>  2 files changed, 70 insertions(+), 1 deletion(-)
> >>
> >> diff --git a/arch/arm64/boot/dts/qcom/sm8350-sony-xperia-sagami-pdx214.dts b/arch/arm64/boot/dts/qcom/sm8350-sony-xperia-sagami-pdx214.dts
> >> index e6824c8c2774..6fa830bdc6bd 100644
> >> --- a/arch/arm64/boot/dts/qcom/sm8350-sony-xperia-sagami-pdx214.dts
> >> +++ b/arch/arm64/boot/dts/qcom/sm8350-sony-xperia-sagami-pdx214.dts
> >> @@ -10,6 +10,20 @@
> >>  / {
> >>  	model = "Sony Xperia 5 III";
> >>  	compatible = "sony,pdx214-generic", "qcom,sm8350";
> >> +
> >> +	gpio-keys {
> >> +		pinctrl-names = "default";
> >> +		pinctrl-0 = <&focus_n &snapshot_n &vol_down_n &g_assist_n>;
> >> +
> >> +		key-google-assist {
> >> +			label = "Google Assistant Key";
> >> +			gpios = <&pm8350_gpios 9 GPIO_ACTIVE_LOW>;
> >> +			linux,code = <KEY_LEFTMETA>;
> >> +			debounce-interval = <15>;
> >> +			linux,can-disable;
> >> +			gpio-key,wakeup;
> >> +		};
> >> +	};
> > 
> > ... please move this to board DTS.  Xperia 1 III would also like to have
> > it mapped.  Downstream DT indicates, and my local testing confirms, that
> > it is identical to Xperia 5 III (i.e. common to the Sagami board).
> > 
> > The other buttons work great on both devices!
> While I'd agree that having it like that would be nice for completeness,
> it's:
> 
> - not necessary, as the button is not physically there, so the user will
> never come into contact with it

I have the device in my hand right now and, unless I take an angle
grinder to it, it has this button.

How else did you expect me to successfully test it?

Maybe you are confused with Xperia 1 IV, which does _not_ have the
button.  Nor does Xperia 1 II, for that matter.

- Marijn

> - it will leak power, the plan is to park all unused pins after we get
> "good enough" support for our devices (not now, so as not to mess with
> ourselves in the dev process)
> 
> Konrad

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