linux-kernel - Re: [PATCH 0/2] Remove QDF2xxx pinctrl drivers

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Message-ID: <CAA8EJprDk=HnqWJ_F5zdUKMPFPpx1RD9KN-KQP9yopP6LMh_fw@mail.gmail.com>
Date: Mon, 22 Jan 2024 19:56:48 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Jeffrey Hugo <quic_jhugo@...cinc.com>
Cc: Konrad Dybcio <konrad.dybcio@...aro.org>, Bjorn Andersson <andersson@...nel.org>, 
	Linus Walleij <linus.walleij@...aro.org>, Catalin Marinas <catalin.marinas@....com>, 
	Will Deacon <will@...nel.org>, Marijn Suijten <marijn.suijten@...ainline.org>, 
	linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org, 
	linux-gpio@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 0/2] Remove QDF2xxx pinctrl drivers

On Mon, 22 Jan 2024 at 19:43, Jeffrey Hugo <quic_jhugo@...cinc.com> wrote:
>
> On 1/22/2024 4:57 AM, Konrad Dybcio wrote:
> > The SoC line was never productized, remove the maintenance burden.
> >
> > Compile-tested only.
> >
> > Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
> > ---
> > Konrad Dybcio (2):
> >        pinctrl: qcom: Remove QDF2xxx support
> >        arm64: defconfig: Remove QDF24XX pinctrl
> >
> >   arch/arm64/configs/defconfig           |   1 -
> >   drivers/pinctrl/qcom/Kconfig.msm       |   7 --
> >   drivers/pinctrl/qcom/Makefile          |   1 -
> >   drivers/pinctrl/qcom/pinctrl-qdf2xxx.c | 164 ---------------------------------
> >   4 files changed, 173 deletions(-)
> > ---
> > base-commit: 319fbd8fc6d339e0a1c7b067eed870c518a13a02
> > change-id: 20240122-topic-qdf_cleanup_pinctrl-98e17cdb375b
> >
> > Best regards,
>
> NACK.
>
> This was productized, there are some out in the wild, and the platform
> is still in (limited) use.
>
> I'd like to see support hang around for a few more years yet.

The problem is that... its support is pretty strange. I can see
pinctrl, ethernet and quirks for the platform in GIC-ITS and PL011
drivers. Is this enough to get the platform into the useful state? I
can imagine that "QCOM2430" ACPI handle was used for USB hosts on that
platform, but I don't remember when we last tested DWC3 with the ACPI.

So, all this boils down to the question whether mainline (or something
close by, LTS for example) is actually used and tested on these
devices?

-- 
With best wishes
Dmitry