linux-kernel - Re: [PATCH v2 2/4] usb: ucsi: glink: use the connector orientation GPIO to provide switch events

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Date:   Tue, 3 Oct 2023 11:05:51 +0300
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     neil.armstrong@...aro.org
Cc:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org
Subject: Re: [PATCH v2 2/4] usb: ucsi: glink: use the connector orientation
 GPIO to provide switch events

On Tue, 3 Oct 2023 at 10:13, Neil Armstrong <neil.armstrong@...aro.org> wrote:
>
> On 02/10/2023 19:26, Dmitry Baryshkov wrote:
> > On Mon, 2 Oct 2023 at 13:21, Neil Armstrong <neil.armstrong@...aro.org> wrote:
> >>
> >> On SM8550, the non-altmode orientation is not given anymore within
> >> altmode events, even with USB SVIDs events.
> >>
> >> On the other side, the Type-C connector orientation is correctly
> >> reported by a signal from the PMIC.
> >>
> >> Take this gpio signal when we detect some Type-C port activity
> >> to notify any Type-C switches tied to the Type-C port connectors.
> >
> > Have you checked, which UCSI version is implemented on SM8550?
> > Is there any chance of GET_CONNECTOR_STATUS / bit 86 actually
> > reflecting the correct orientation?
>
> I checked, and no, the UCSI implementation is based on the UCSI 1.x spec,
> and doesn't have the UCSI 2.x new bits.

Ack, thanks for the confirmation.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>

>
> Neil
>
> >
> >>
> >> Acked-by: Heikki Krogerus <heikki.krogerus@...ux.intel.com>
> >> Signed-off-by: Neil Armstrong <neil.armstrong@...aro.org>
> >> ---
> >
> >
>


-- 
With best wishes
Dmitry