Patch "drm/omap: displays: panel-dpi: add backlight dependency" has been added to the 4.14-stable tree

Patch "drm/omap: displays: panel-dpi: add backlight dependency" has been added to the 4.14-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    drm/omap: displays: panel-dpi: add backlight dependency

to the 4.14-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     drm-omap-displays-panel-dpi-add-backlight-dependency.patch
and it can be found in the queue-4.14 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From foo@baz Thu Feb  1 13:45:42 CET 2018
From: Arnd Bergmann <arnd@arndb.de>
Date: Thu, 5 Oct 2017 14:06:41 +0200
Subject: drm/omap: displays: panel-dpi: add backlight dependency

From: Arnd Bergmann <arnd@arndb.de>


[ Upstream commit 499ec0ed5eb2f6a7fcaab2dd66ffc5993484bda9 ]

The new backlight code causes a link failure when backlight
support itself is disabled:

drivers/gpu/drm/omapdrm/displays/panel-dpi.o: In function `panel_dpi_probe_of':
panel-dpi.c:(.text+0x35c): undefined reference to `of_find_backlight_by_node'

This adds a Kconfig dependency like we have for the other OMAP
display targets.

Fixes: 39135a305a0f ("drm/omap: displays: panel-dpi: Support for handling backlight devices")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/omapdrm/displays/Kconfig |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/gpu/drm/omapdrm/displays/Kconfig
+++ b/drivers/gpu/drm/omapdrm/displays/Kconfig
@@ -35,6 +35,7 @@ config DRM_OMAP_CONNECTOR_ANALOG_TV
 
 config DRM_OMAP_PANEL_DPI
 	tristate "Generic DPI panel"
+	depends on BACKLIGHT_CLASS_DEVICE
 	help
 	  Driver for generic DPI panels.
 


Patches currently in stable-queue which might be from arnd@arndb.de are

queue-4.14/drm-omap-displays-panel-dpi-add-backlight-dependency.patch
queue-4.14/gpio-fix-kernel-stack-leak-to-userspace.patch