linux-kernel - Re: [PATCH 0/3] Fairphone 5 PMIC-GLINK support (USB-C, charger, fuel gauge)

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Date: Tue, 02 Jan 2024 14:43:24 +0100
From: "Luca Weiss" <luca.weiss@...rphone.com>
To: "Greg Kroah-Hartman" <gregkh@...uxfoundation.org>
Cc: "Konrad Dybcio" <konrad.dybcio@...aro.org>, "Dmitry Baryshkov"
 <dmitry.baryshkov@...aro.org>, "Bjorn Andersson" <andersson@...nel.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>,
 <cros-qcom-dts-watchers@...omium.org>,
 <~postmarketos/upstreaming@...ts.sr.ht>, <phone-devel@...r.kernel.org>,
 <linux-arm-msm@...r.kernel.org>, <devicetree@...r.kernel.org>,
 <linux-kernel@...r.kernel.org>, <linux-usb@...r.kernel.org>
Subject: Re: [PATCH 0/3] Fairphone 5 PMIC-GLINK support (USB-C, charger,
 fuel gauge)

On Tue Jan 2, 2024 at 2:36 PM CET, Greg Kroah-Hartman wrote:
> On Thu, Dec 21, 2023 at 02:45:26PM +0100, Luca Weiss wrote:
> > On Thu Dec 21, 2023 at 1:53 PM CET, Konrad Dybcio wrote:
> > > On 21.12.2023 11:34, Dmitry Baryshkov wrote:
> > > > On Thu, 21 Dec 2023 at 09:33, Luca Weiss <luca.weiss@...rphone.com> wrote:
> > > >>
> > > >> On Wed Dec 20, 2023 at 1:32 PM CET, Konrad Dybcio wrote:
> > > >>> On 20.12.2023 11:02, Luca Weiss wrote:
> > > >>>> This series adds all the necessary bits to enable USB-C role switching,
> > > >>>> charger and fuel gauge (all via pmic-glink) on Fairphone 5.
> > > >>>>
> > > >>>> One thing that could be made different is the pmic-glink compatible.
> > > >>>> I've chosen to use qcm6490 compatible for it and not sc7280 since
> > > >>>> there's plenty of firmware variety on sc7280-based platforms and they
> > > >>>> might require different quirks in the future, so limit this PDOS quirk
> > > >>>> to just qcm6490 for now.
> > > >>>>
> > > >>>> If someone thinks it should be qcom,sc7280-pmic-glink, please let me
> > > >>>> know :)
> > > >>> IMO it's best to continue using the "base soc" (which just so happened
> > > >>> to fall onto sc7280 this time around) for all compatibles, unless the
> > > >>> derivatives actually had changes
> > > >>
> > > >> Hi Konrad,
> > > >>
> > > >> I think at some point I asked Dmitry what he thought and he mentioned
> > > >> qcm6490. Even found the message again:
> > > >>
> > > >>> well, since it is a firmware thing, you might want to emphasise that.
> > > >>> So from my POV qcm6490 makes more sense
> > > >>
> > > >> But yeah since it's likely that sc7280 firmware behaves the same as
> > > >> qcm6490 firmware it's probably okay to use sc7280 compatible, worst case
> > > >> we change it later :) I'll send a v2 with those changes.
> > > > 
> > > > Worst case we end up with sc7280 which has yet another slightly
> > > > different UCSI / PMIC GLINK implementation, but the compatible string
> > > > is already taken.
> > > > I still suppose that this should be a qcm6490-related string.
> > > Right, let's keep qcm then
> > 
> > Ack from my side also. Thanks for the feedback!
>
> This doesn't apply to my tree, where should it be going through?

As far as I can see the dependency for the driver commit 1d103d6af241
("usb: typec: ucsi: fix UCSI on buggy Qualcomm devices") was applied to
Bjorn's qcom tree, so 2/3 should also go there then.

Patch 3/3 (arm64 dts) definitely also Bjorn's qcom tree.

So that leaves patch 1/3 which Bjorn can probably pick up as well but
looking at git log you also picked up some for that file in the past,
dunno.

Regards
Luca

>
> thanks,
> greg k-h