4.14-stable review patch. If anyone has any objections, please let me know.
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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.