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[2/5] drm: panel/simple: add backlight dependency

Message ID 1422452889-415782-3-git-send-email-arnd@arndb.de (mailing list archive)
State Accepted
Headers show

Commit Message

Arnd Bergmann Jan. 28, 2015, 1:48 p.m. UTC
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@arndb.de>
---
 drivers/gpu/drm/panel/Kconfig | 1 +
 1 file changed, 1 insertion(+)
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Patch

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