[PATCH v7 16/16] pinctrl: qcom: make the pinmuxing strict
Bartosz Golaszewski
brgl at bgdev.pl
Tue Sep 2 10:41:47 PDT 2025
On Tue, Sep 2, 2025 at 4:38 PM Andy Shevchenko
<andriy.shevchenko at intel.com> wrote:
>
> On Tue, Sep 02, 2025 at 01:59:25PM +0200, Bartosz Golaszewski wrote:
> > From: Bartosz Golaszewski <bartosz.golaszewski at linaro.org>
> >
> > The strict flag in struct pinmux_ops disallows the usage of the same pin
> > as a GPIO and for another function. Without it, a rouge user-space
> > process with enough privileges (or even a buggy driver) can request a
> > used pin as GPIO and drive it, potentially confusing devices or even
> > crashing the system. Set it globally for all pinctrl-msm users.
>
> How does this keep (or allow) I涎 generic recovery mechanism to work?
>
What even is the "generic recovery mechanism"? That's the first time
I'm hearing this name.
Bartosz
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