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

[Hans de Goede <hdegoede@redhat.com>]

Hi,

On 16-12-2019 13:16, Linus Walleij wrote:
> On Mon, Dec 16, 2019 at 12:11 PM Hans de Goede <hdegoede@redhat.com> 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.

That indeed sounds like a cleaner solution I will prepare a new version of
the patch (and this series for the i915 CI) with this approach.

Thanks & Regards,

Hans