linux-kernel - Re: [PATCH 0/7] arm64: dts: qcom: sc8280xp: HID wakeup sources and alt. touchpad

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Message-ID: <Yu0KQyGaa4vHclDR@hovoldconsulting.com>
Date:   Fri, 5 Aug 2022 14:17:07 +0200
From:   Johan Hovold <johan@...nel.org>
To:     Konrad Dybcio <konrad.dybcio@...ainline.org>
Cc:     Johan Hovold <johan+linaro@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/7] arm64: dts: qcom: sc8280xp: HID wakeup sources and
 alt. touchpad

On Fri, Aug 05, 2022 at 01:02:14PM +0200, Konrad Dybcio wrote:
> On 5.08.2022 11:23, Johan Hovold wrote:

> > Included is also support for the alternate (second-source) touchpad
> > found on some X13s laptops. Note that the node is disabled for now as
> > ideally the boot firmware should be determining which touchpad is
> > actually populated.

> Interesting, what bootloader is used on these? Are you chainloading
> something on top of Qualcomm's XBL UEFI?

We're using GRUB currently. Not sure how we'd go about implementing
this, and perhaps we'll just end up enabling both in DT instead
eventually.

> > With some additional fixes it is possible to have both nodes enabled and
> > letting Linux do the probing, but let's wait for a conclusion to the
> > discussion about whether that is desirable before enabling them both:
> > 
> > 	https://lore.kernel.org/all/YuJXMHoT4ijUxnRb@hovoldconsulting.com

Johan