From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/5] drm: panel/simple: add backlight dependency
Date: Wed, 28 Jan 2015 14:48:06 +0100 [thread overview]
Message-ID: <1422452889-415782-3-git-send-email-arnd@arndb.de> (raw)
In-Reply-To: <1422452889-415782-1-git-send-email-arnd@arndb.de>
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(+)
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
next prev parent reply other threads:[~2015-01-28 13:48 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-28 13:48 [PATCH 0/5] drm: add missing dependencies Arnd Bergmann
2015-01-28 13:48 ` [PATCH 1/5] drm: panel/sharp: add backlight dependency Arnd Bergmann
2015-01-28 13:48 ` Arnd Bergmann [this message]
2015-01-28 13:48 ` [PATCH 3/5] drm: rockchip: add reset controller dependency Arnd Bergmann
2015-01-28 13:48 ` [PATCH 4/5] drm: sti: add panel dependency Arnd Bergmann
2015-01-28 13:48 ` [PATCH] drm: msm: add missing dependencies on OF and COMMON_CLK Arnd Bergmann
2015-01-28 14:18 ` Arnd Bergmann
2015-01-31 0:13 ` [PATCH 0/5] drm: add missing dependencies Dave Airlie
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