linux-kernel - [PATCH] staging: olpc_dcon: mark driver as broken

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Date:   Fri, 10 Jun 2022 00:34:24 +0200
From:   Javier Martinez Canillas <javierm@...hat.com>
To:     linux-kernel@...r.kernel.org
Cc:     Daniel Vetter <daniel.vetter@...ll.ch>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        dri-devel@...ts.freedesktop.org, Sam Ravnborg <sam@...nborg.org>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Jerry Lin <wahahab11@...il.com>, Helge Deller <deller@....de>,
        Javier Martinez Canillas <javierm@...hat.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jens Frederich <jfrederich@...il.com>,
        Jon Nettleton <jon.nettleton@...il.com>,
        linux-staging@...ts.linux.dev
Subject: [PATCH] staging: olpc_dcon: mark driver as broken

The commit eecb3e4e5d9d ("staging: olpc_dcon: add OLPC display controller
(DCON) support") added this driver in 2010, and has been in staging since
then. It was marked as broken at some point because it didn't even build
but that got removed once the build issues were addressed.

But it seems that the work to move this driver out of staging has stalled,
the last non-trivial change to fix one of the items mentioned in its todo
file was commit e40219d5e4b2 ("staging: olpc_dcon: allow simultaneous XO-1
and XO-1.5 support") in 2019.

And even if work to destage the driver is resumed, the fbdev subsystem has
been deprecated for a long time and instead it should be ported to DRM.

Now this driver is preventing to land a kernel wide change, that makes the
num_registered_fb symbol to be private to the fbmem.c file.

So let's just mark the driver as broken. Someone can then work on making
it not depend on the num_registered_fb symbol, allowing to drop the broken
dependency again.

Suggested-by: Sam Ravnborg <sam@...nborg.org>
Signed-off-by: Javier Martinez Canillas <javierm@...hat.com>
---

 drivers/staging/olpc_dcon/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/olpc_dcon/Kconfig b/drivers/staging/olpc_dcon/Kconfig
index d1a0dea09ef0..d0ba34cc32f7 100644
--- a/drivers/staging/olpc_dcon/Kconfig
+++ b/drivers/staging/olpc_dcon/Kconfig
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 config FB_OLPC_DCON
 	tristate "One Laptop Per Child Display CONtroller support"
-	depends on OLPC && FB
+	depends on OLPC && FB && BROKEN
 	depends on I2C
 	depends on GPIO_CS5535 && ACPI
 	select BACKLIGHT_CLASS_DEVICE
-- 
2.36.1