On Wed, Oct 11, 2023 at 4:02 PM Bartosz Golaszewski <brgl@xxxxxxxx> wrote: > > From: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx> > > Accessing struct gpio_chip backing a GPIO device is only allowed for the > actual providers of that chip. > > Similarly to how we introduced gpio_device_find() in order to replace > the abused gpiochip_find(), let's introduce a counterpart to > gpiod_to_chip() that returns a reference to the GPIO device owning the > descriptor. This is done in order to later remove gpiod_to_chip() > entirely. My concern with this API is the following scenario: 1. One driver requests the GPIO descriptor. 2. Another driver does take an arbitrary number, converts to a descriptor and calls for this API. Is there any (potential) problem? -- With Best Regards, Andy Shevchenko
