This tinydrm driver fails to link without the backlight support:
drivers/gpu/drm/tinydrm/ili9341.o: In function `ili9341_probe': ili9341.c:(.text+0x578): undefined reference to `devm_of_find_backlight'
Fixes: 3fa0e8f6f960 ("drm/tinydrm: new driver for ILI9341 display panels") Signed-off-by: Arnd Bergmann arnd@arndb.de --- drivers/gpu/drm/tinydrm/Kconfig | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/tinydrm/Kconfig b/drivers/gpu/drm/tinydrm/Kconfig index 7a8008b0783f..16f4b5c91f1b 100644 --- a/drivers/gpu/drm/tinydrm/Kconfig +++ b/drivers/gpu/drm/tinydrm/Kconfig @@ -23,6 +23,7 @@ config TINYDRM_ILI9225 config TINYDRM_ILI9341 tristate "DRM support for ILI9341 display panels" depends on DRM_TINYDRM && SPI + depends on BACKLIGHT_CLASS_DEVICE select TINYDRM_MIPI_DBI help DRM driver for the following Ilitek ILI9341 panels: