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Mon, 22 Jan 2024 11:24:02 -0800 (PST) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 References: <20240122-topic-qdf_cleanup_pinctrl-v1-0-0c619ea25091@linaro.org> <8c9b157b-4698-70a3-57b7-c588998eeda7@quicinc.com> <52479377-ff61-7537-e4aa-064ab4a77c03@quicinc.com> In-Reply-To: <52479377-ff61-7537-e4aa-064ab4a77c03@quicinc.com> From: Dmitry Baryshkov Date: Mon, 22 Jan 2024 21:23:51 +0200 Message-ID: Subject: Re: [PATCH 0/2] Remove QDF2xxx pinctrl drivers To: Jeffrey Hugo Cc: Konrad Dybcio , Bjorn Andersson , Linus Walleij , Catalin Marinas , Will Deacon , Marijn Suijten , linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-gpio@vger.kernel.org, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="UTF-8" On Mon, 22 Jan 2024 at 20:44, Jeffrey Hugo wrote: > > On 1/22/2024 10:56 AM, Dmitry Baryshkov wrote: > > On Mon, 22 Jan 2024 at 19:43, Jeffrey Hugo 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 (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? > > Its an ACPI system, so you won't see all of the fun DTisms of a MSM chip. > > The platform was fully functional upstream, and had an Ubuntu > certification. I run Ubuntu on the two that I have in my office. I > haven't strictly checked out mainline in a while, but I could. I still > have access to the documentation. > > There is a small, but active set of users including myself. From what > I've seen, they've been happy with things. Thanks for the information! It looks like it has a small but stable user base. I think we should keep it, maybe ensuring that we are able to test the kernel. -- With best wishes Dmitry