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

[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?

-Doug