From: Bartosz Golaszewski <brgl@bgdev.pl>
To: Andy Shevchenko <andriy.shevchenko@intel.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>,
Linus Walleij <linus.walleij@linaro.org>,
Bjorn Andersson <andersson@kernel.org>,
Konrad Dybcio <konradybcio@kernel.org>,
Alexey Klimov <alexey.klimov@linaro.org>,
Lorenzo Bianconi <lorenzo@kernel.org>,
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Matthias Brugger <matthias.bgg@gmail.com>,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com>,
Paul Cercueil <paul@crapouillou.net>,
Kees Cook <kees@kernel.org>, Andy Shevchenko <andy@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
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Lorenzo Stoakes <lorenzo.stoakes@oracle.com>,
"Liam R. Howlett" <Liam.Howlett@oracle.com>,
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Fabio Estevam <festevam@gmail.com>,
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Bartosz Golaszewski <bartosz.golaszewski@linaro.org>,
Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Subject: Re: [PATCH v7 16/16] pinctrl: qcom: make the pinmuxing strict
Date: Wed, 3 Sep 2025 14:06:54 +0200 [thread overview]
Message-ID: <CAMRc=MeX58XKmxaY1jYCMdy6fQJf7HWMR8f=DQpeovE8APw=og@mail.gmail.com> (raw)
In-Reply-To: <aLgrqZETNLmuMHhv@smile.fi.intel.com>
On Wed, Sep 3, 2025 at 1:51 PM Andy Shevchenko
<andriy.shevchenko@intel.com> wrote:
>
> >
> > I don't see why this would stop these patches though, as they don't
> > break anything unless you decide to make your pin controller strict in
> > which situation you'd need to verify which functions can GPIOs anyway.
>
> It can't anyway, Linus already applied :-)
>
This would be the third time he did it so it's not like it's carved in stone.
I see your point but I think we should cross that bridge when we get
there. Shouldn't be too hard, we already have an entry point:
gpiod_request_user() where we could set an additional flag marking the
descriptor as requested by user-space in which case, when we get to
the relevant pinctrl code, it could check this and refuse based on
whether the descriptor was requested from within the kernel or from
outside.
Bart
next prev parent reply other threads:[~2025-09-03 12:07 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-02 11:59 [PATCH v7 00/16] pinctrl: introduce the concept of a GPIO pin function category Bartosz Golaszewski
2025-09-02 11:59 ` [PATCH v7 01/16] pinctrl: check the return value of pinmux_ops::get_function_name() Bartosz Golaszewski
2025-09-02 13:06 ` Andy Shevchenko
2025-09-02 13:29 ` Bartosz Golaszewski
2025-09-02 13:50 ` Andy Shevchenko
2025-09-02 14:02 ` Bartosz Golaszewski
2025-09-02 14:20 ` Andy Shevchenko
2025-09-02 11:59 ` [PATCH v7 02/16] devres: provide devm_kmemdup_const() Bartosz Golaszewski
2025-09-02 11:59 ` [PATCH v7 03/16] pinctrl: ingenic: use struct pinfunction instead of struct function_desc Bartosz Golaszewski
2025-09-02 11:59 ` [PATCH v7 04/16] pinctrl: airoha: replace struct function_desc with struct pinfunction Bartosz Golaszewski
2025-09-02 11:59 ` [PATCH v7 05/16] pinctrl: mediatek: mt7988: use PINCTRL_PIN_FUNCTION() Bartosz Golaszewski
2025-09-02 11:59 ` [PATCH v7 06/16] pinctrl: mediatek: moore: replace struct function_desc with struct pinfunction Bartosz Golaszewski
2025-09-02 11:59 ` [PATCH v7 07/16] pinctrl: imx: don't access the pin function radix tree directly Bartosz Golaszewski
2025-09-03 12:07 ` Mark Brown
2025-09-02 11:59 ` [PATCH v7 08/16] pinctrl: keembay: release allocated memory in detach path Bartosz Golaszewski
2025-09-02 13:10 ` Andy Shevchenko
2025-09-02 13:30 ` Bartosz Golaszewski
2025-09-02 11:59 ` [PATCH v7 09/16] pinctrl: keembay: use a dedicated structure for the pinfunction description Bartosz Golaszewski
2025-09-02 11:59 ` [PATCH v7 10/16] pinctrl: constify pinmux_generic_get_function() Bartosz Golaszewski
2025-09-02 11:59 ` [PATCH v7 11/16] pinctrl: make struct pinfunction a pointer in struct function_desc Bartosz Golaszewski
2025-09-02 11:59 ` [PATCH v7 12/16] pinctrl: qcom: use generic pin function helpers Bartosz Golaszewski
2025-09-02 13:15 ` Andy Shevchenko
2025-09-02 13:32 ` Bartosz Golaszewski
2025-09-02 15:12 ` Krzysztof Kozlowski
2025-09-02 15:27 ` Andy Shevchenko
2025-09-02 15:38 ` Krzysztof Kozlowski
2025-09-02 11:59 ` [PATCH v7 13/16] pinctrl: allow to mark pin functions as requestable GPIOs Bartosz Golaszewski
2025-09-02 14:31 ` Andy Shevchenko
2025-09-02 17:50 ` Bartosz Golaszewski
2025-09-02 11:59 ` [PATCH v7 14/16] pinctrl: qcom: add infrastructure for marking pin functions as GPIOs Bartosz Golaszewski
2025-09-02 11:59 ` [PATCH v7 15/16] pinctrl: qcom: mark the `gpio` and `egpio` pins function as non-strict functions Bartosz Golaszewski
2025-09-02 14:32 ` Andy Shevchenko
2025-09-02 11:59 ` [PATCH v7 16/16] pinctrl: qcom: make the pinmuxing strict Bartosz Golaszewski
2025-09-02 14:38 ` Andy Shevchenko
2025-09-02 17:41 ` Bartosz Golaszewski
2025-09-02 20:46 ` Andy Shevchenko
2025-09-03 7:33 ` Bartosz Golaszewski
2025-09-03 10:22 ` Andy Shevchenko
2025-09-03 10:34 ` Bartosz Golaszewski
2025-09-03 10:38 ` Andy Shevchenko
2025-09-03 10:41 ` Bartosz Golaszewski
2025-09-03 10:53 ` Andy Shevchenko
2025-09-03 11:05 ` Bartosz Golaszewski
2025-09-03 11:51 ` Andy Shevchenko
2025-09-03 12:06 ` Bartosz Golaszewski [this message]
2025-09-03 11:06 ` Mark Brown
2025-09-03 7:34 ` Geert Uytterhoeven
2025-09-02 14:46 ` [PATCH v7 00/16] pinctrl: introduce the concept of a GPIO pin function category Andy Shevchenko
2025-09-02 17:37 ` Bartosz Golaszewski
2025-09-02 22:18 ` Linus Walleij
2025-09-03 11:51 ` Andy Shevchenko
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