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References: <20240416-ucsi-glink-altmode-v1-0-890db00877ac@linaro.org>
 <20240416-ucsi-glink-altmode-v1-2-890db00877ac@linaro.org> <c129b349-dfaa-4b10-9b8c-6098d04b9373@linaro.org>
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From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Date: Tue, 16 Apr 2024 17:48:42 +0300
Message-ID: <CAA8EJpqH2_ENE6am=m9dtwk_+_Vbc4pZG9=Y_4-b-p0fKQ4sBg@mail.gmail.com>
Subject: Re: [PATCH 2/8] usb: typec: altmode: add low level altmode
 configuration helper
To: Konrad Dybcio <konrad.dybcio@linaro.org>
Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>, 
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Neil Armstrong <neil.armstrong@linaro.org>, 
	Bjorn Andersson <andersson@kernel.org>, linux-usb@vger.kernel.org, 
	linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org
Content-Type: text/plain; charset="UTF-8"

On Tue, 16 Apr 2024 at 17:32, Konrad Dybcio <konrad.dybcio@linaro.org> wrote:
>
>
>
> On 4/16/24 04:20, Dmitry Baryshkov wrote:
> > In some obscure cases (Qualcomm PMIC Glink) altmode is completely
> > handled by the firmware. Linux does not get proper partner altmode info.
> > Instead we get the notification once the altmode is negotiated and
> > entered (or left). However even in such a case the driver has to switch
> > board components (muxes, switches and retimers) according to the altmode
> > selected by the hardware.
> >
> > We can not use existing typec_altmode_enter() / typec_altmode_exit() /
> > typec_altmode_notify() functions in such a case, since there is no
> > corresponding partner's altmode instance.
> >
> > Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
> > ---
>
> Should this now be called from e.g. typec_almode_notify to limit
> duplication?

typec_altmode_notify works only if there is an altmode->partner (which
we don't have with pmic-glink).


-- 
With best wishes
Dmitry