Re: [RFT PATCH] spi: bcm2835: reduce the abuse of the GPIO API

[Bartosz Golaszewski <brgl@xxxxxxxx>]

On Fri, Sep 1, 2023 at 11:22 AM Linus Walleij <linus.walleij@xxxxxxxxxx> wrote:
>
> On Fri, Sep 1, 2023 at 10:55 AM Andy Shevchenko
> <andriy.shevchenko@xxxxxxxxxxxxxxx> wrote:
>
> > > I'm not sure this is a good candidate for the GPIOLIB quirks. This is
> > > the SPI setup callback (which makes me think - I should have used
> > > gpiod_get(), not devm_gpiod_get() and then put the descriptor in
> > > .cleanup()) and not probe. It would be great to get some background on
> > > why this is even needed in the first place. The only reason I see is
> > > booting the driver with an invalid device-tree that doesn't assign the
> > > GPIO to the SPI controller.
> >
> > Maybe Lukas knows more?
>
> He does!
> The background can be found here:
> https://www.spinics.net/lists/linux-gpio/msg36218.html
> (hm this "spinics" archive should be imported to lore...)
>
> Yours,
> Linus Walleij

Thanks! I will fix the patch and add this link to the commit message.

Bart