Re: [PATCH 0/5] drm/i915/dsi: Control panel and backlight enable GPIOs from VBT

[Linus Walleij <linus.walleij@xxxxxxxxxx>]

On Mon, Dec 16, 2019 at 12:11 PM Hans de Goede <hdegoede@xxxxxxxxxx> wrote:

> Ugh, taking one last look at the "pinctrl: Export pinctrl_unregister_mappings"
> patch it is no good, sorry.

Ooops!

> Linus, can you please drop this from your -next ?

Sure, done.

> So I see 2 options:
> 1) Add an orig_map member to maps_node and use that in the comparison,
> this is IMHO somewhat ugly
>
> 2) Add a new pinctrl_register_mappings_no_dup helper and document in
> pinctrl_unregister_mappings kdoc that it can only be used together
> with the no_dup variant.
>
> I believe that 2 is by far the best option. Linus do you agree or
> do you have any other suggestions?

What about (3) look for all calls to pinctrl_register_mappings()
in the kernel.

Hey it is 2 places in total:
arch/arm/mach-u300/core.c:      pinctrl_register_mappings(u300_pinmux_map,
drivers/pinctrl/cirrus/pinctrl-madera-core.c:           ret =
pinctrl_register_mappings(pdata->gpio_configs,

Delete  __initdata from the u300 table, the other one seems
safe. Fold this into your patch.

Go with the original idea.

Yours,
Linus Walleij