Without the dependency, we run into a link error:
drivers/gpu/drm/panel/panel-sitronix-st7789v.o: In function `st7789v_probe':
panel-sitronix-st7789v.c:(.text.st7789v_probe+0xc0): undefined reference to `of_find_backlight_by_node'
Fixes: 7142afb3a186 ("drm/panel: Add driver for sitronix ST7789V LCD controller")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
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 6eb9774284df..04d068177e16 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -101,6 +101,7 @@ config DRM_PANEL_SHARP_LS043T1LE01
config DRM_PANEL_SITRONIX_ST7789V
tristate "Sitronix ST7789V panel"
depends on OF && SPI
+ depends on BACKLIGHT_CLASS_DEVICE
help
Say Y here if you want to enable support for the Sitronix
ST7789V controller for 240x320 LCD panels
--
2.9.0
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