[PATCH v2] drm/panel: Select DRM_DP_HELPER for DRM_PANEL_EDP

[Thomas Zimmermann]

Hi

Am 23.02.22 um 17:11 schrieb Doug Anderson:
> Hi,
> 
> On Tue, Feb 22, 2022 at 1:31 AM Geert Uytterhoeven <geert at linux-m68k.org> wrote:
>>
>> On Tue, Feb 8, 2022 at 10:39 AM Geert Uytterhoeven <geert at linux-m68k.org> wrote:
>>> On Mon, Feb 7, 2022 at 12:31 PM Thomas Zimmermann <tzimmermann at suse.de> wrote:
>>>> As reported in [1], DRM_PANEL_EDP depends on DRM_DP_HELPER. Select
>>>> the option to fix the build failure. The error message is shown
>>>> below.
>>>>
>>>>    arm-linux-gnueabihf-ld: drivers/gpu/drm/panel/panel-edp.o: in function
>>>>      `panel_edp_probe': panel-edp.c:(.text+0xb74): undefined reference to
>>>>      `drm_panel_dp_aux_backlight'
>>>>    make[1]: *** [/builds/linux/Makefile:1222: vmlinux] Error 1
>>>>
>>>> The issue has been reported before, when DisplayPort helpers were
>>>> hidden behind the option CONFIG_DRM_KMS_HELPER. [2]
>>>>
>>>> v2:
>>>>          * fix and expand commit description (Arnd)
>>>>
>>>> Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
>>>
>>> Thanks for your patch!
>>>
>>> This fixes the build errors I'm seeing, so
>>> Tested-by: Geert Uytterhoeven <geert+renesas at glider.be>
>>
>> Is this planned to be queued? This is still failing in drm-next.
>> Thanks!
> 
> Looks like this has been in drm-misc-next since Feb 4:
> 
> ---
> 
> commit eea89dff4c39a106f98d1cb5e4d626f8c63908b9
> Author:     Thomas Zimmermann <tzimmermann at suse.de>
> AuthorDate: Thu Feb 3 10:39:22 2022 +0100
> Commit:     Thomas Zimmermann <tzimmermann at suse.de>
> CommitDate: Fri Feb 4 09:38:47 2022 +0100
> 
>      drm/panel: Select DRM_DP_HELPER for DRM_PANEL_EDP
> 
> ---
> 
> Maybe it needed to land elsewhere, though?

Sorry about the mess. We had some confusion with this cycle's 
drm-misc-next pull request, which got delayed significantly. There's 
been a PR today, which should be merged into drm-next any time now. The 
patch will be part of that.

Best regards
Thomas

> 
> -Doug

-- 
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Ivo Totev
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