[PATCH] gma500: medfield: fix build without CONFIG_BACKLIGHT_CLASS_DEVICE

[Kirill A. Shutemov]

From: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>

drivers/built-in.o: In function `mdfld_dsi_connector_set_property':
mdfld_dsi_output.c:(.text+0x6e909): undefined reference to `mdfld_set_brightness'
make: *** [.tmp_vmlinux1] Error 1

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/gma500/mdfld_dsi_output.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/drivers/gpu/drm/gma500/mdfld_dsi_output.c b/drivers/gpu/drm/gma500/mdfld_dsi_output.c
index 4c2cb4a..5675d93 100644
--- a/drivers/gpu/drm/gma500/mdfld_dsi_output.c
+++ b/drivers/gpu/drm/gma500/mdfld_dsi_output.c
@@ -244,7 +244,6 @@ static int mdfld_dsi_connector_set_property(struct drm_connector *connector,
 				uint64_t value)
 {
 	struct drm_encoder *encoder = connector->encoder;
-	struct backlight_device *psb_bd;
 
 	if (!strcmp(property->name, "scaling mode") && encoder) {
 		struct psb_intel_crtc *psb_crtc =
@@ -301,11 +300,15 @@ static int mdfld_dsi_connector_set_property(struct drm_connector *connector,
 									value))
 			goto set_prop_error;
 		else {
+#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
+			struct backlight_device *psb_bd;
+
 			psb_bd = mdfld_get_backlight_device();
 			if (psb_bd) {
 				psb_bd->props.brightness = value;
 				mdfld_set_brightness(psb_bd);
 			}
+#endif
 		}
 	}
 set_prop_done:
-- 
1.7.9.1

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