linux-kernel - Re: [PATCH] drm/panel/raydium-rm692e5: select CONFIG_DRM_DISPLAY_DP

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Message-Id: <CXZSU1D3YID7.6FE4TR15LF1V@fairphone.com>
Date: Thu, 28 Dec 2023 08:46:58 +0100
From: "Luca Weiss" <luca.weiss@...rphone.com>
To: <neil.armstrong@...aro.org>, "Arnd Bergmann" <arnd@...nel.org>, "Maarten
 Lankhorst" <maarten.lankhorst@...ux.intel.com>, "Maxime Ripard"
 <mripard@...nel.org>, "Thomas Zimmermann" <tzimmermann@...e.de>, "David
 Airlie" <airlied@...il.com>, "Daniel Vetter" <daniel@...ll.ch>, "Konrad
 Dybcio" <konrad.dybcio@...aro.org>
Cc: "Arnd Bergmann" <arnd@...db.de>, "Jessica Zhang"
 <quic_jesszhan@...cinc.com>, "Sam Ravnborg" <sam@...nborg.org>, "Linus
 Walleij" <linus.walleij@...aro.org>, <dri-devel@...ts.freedesktop.org>,
 <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] drm/panel/raydium-rm692e5: select
 CONFIG_DRM_DISPLAY_DP_HELPER

On Mon Oct 23, 2023 at 3:25 PM CEST, Neil Armstrong wrote:
> Hi,
>
> On 23/10/2023 13:55, Arnd Bergmann wrote:
> > From: Arnd Bergmann <arnd@...db.de>
> > 
> > As with several other panel drivers, this fails to link without the DP
> > helper library:
> > 
> > ld: drivers/gpu/drm/panel/panel-raydium-rm692e5.o: in function `rm692e5_prepare':
> > panel-raydium-rm692e5.c:(.text+0x11f4): undefined reference to `drm_dsc_pps_payload_pack'
> > 
> > Select the same symbols that the others already use.
> > 
> > Fixes: 988d0ff29ecf7 ("drm/panel: Add driver for BOE RM692E5 AMOLED panel")
> > Signed-off-by: Arnd Bergmann <arnd@...db.de>
> > ---
> >   drivers/gpu/drm/panel/Kconfig | 2 ++
> >   1 file changed, 2 insertions(+)
> > 
> > diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
> > index 99e14dc212ecb..a4ac4b47777fe 100644
> > --- a/drivers/gpu/drm/panel/Kconfig
> > +++ b/drivers/gpu/drm/panel/Kconfig
> > @@ -530,6 +530,8 @@ config DRM_PANEL_RAYDIUM_RM692E5
> >   	depends on OF
> >   	depends on DRM_MIPI_DSI
> >   	depends on BACKLIGHT_CLASS_DEVICE
> > +	select DRM_DISPLAY_DP_HELPER
> > +	select DRM_DISPLAY_HELPER
> >   	help
> >   	  Say Y here if you want to enable support for Raydium RM692E5-based
> >   	  display panels, such as the one found in the Fairphone 5 smartphone.
>
> Will apply once drm-misc-next-fixes is synced with the last drm-misc-next PR for v6.7.

Hi Neil,

I think this patch is still pending, I don't see it in linux-next.

It was also reported by a buildbot today
https://lore.kernel.org/lkml/202312281138.PHn1Js8S-lkp@intel.com/

Regards
Luca

>
> Neil