[PATCH 4/9] gpio: regmap: add the .get_direction() callback

[Andrew Lunn]

On Fri, Jul 11, 2025 at 07:43:13PM +0200, Linus Walleij wrote:
> On Wed, Jul 9, 2025 at 5:09 PM Andrew Lunn <andrew at lunn.ch> wrote:
> 
> > This is not my area, so i will deffer to the GPIO
> > Maintainers. However, it is not clear to me what get_direction()
> > should return.
> 
> This callback should return the current direction as set up
> in the hardware.
> 
> A major usecase is that this is called when the gpiochip is
> registered to read out all the current directions of the GPIO
> lines, so the kernel has a clear idea of the state of the
> hardware.
> 
> Calling this should ideally result in a read of the status from
> a hardware register.

O.K, so completely different to what is proposed in this patch.

Maybe you can suggest a better name.

	Andrew