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

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[ 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>
This commit is contained in:
Arnd Bergmann 2017-10-05 14:06:41 +02:00 committed by Greg Kroah-Hartman
parent 345dc6d499
commit 4a96f3d056
1 changed files with 1 additions and 0 deletions
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drivers/gpu/drm/omapdrm/displays/Kconfig
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@ -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.