[PATCH 2/5] drm: panel/simple: add backlight dependency
Arnd Bergmann
arnd at arndb.de
Wed Jan 28 05:48:06 PST 2015
The simple panel code uses the backlight interface to
find a device, which fails when backlight is disabled:
drivers/built-in.o: In function `panel_simple_platform_probe':
:(.text+0xd3c48): undefined reference to `of_find_backlight_by_node'
Signed-off-by: Arnd Bergmann <arnd at arndb.de>
---
drivers/gpu/drm/panel/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
index 84506053a7ca..d84583776d50 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -10,6 +10,7 @@ menu "Display Panels"
config DRM_PANEL_SIMPLE
tristate "support for simple panels"
depends on OF
+ depends on BACKLIGHT_CLASS_DEVICE
help
DRM panel driver for dumb panels that need at most a regulator and
a GPIO to be powered up. Optionally a backlight can be attached so
--
2.1.0.rc2
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