If CONFIG_BACKLIGHT_OMAP1=y and CONFIG_ARCH_OMAP1_ANY=n, it leads a build error: drivers/video/backlight/omap1_bl.o: In function `omapbl_probe': omap1_bl.c:(.text+0x198): undefined reference to `omap_cfg_reg' Here is the link to the issue reported by kernel test bot: https://lore.kernel.org/lkml/202211060819.fHDGmrB4-lkp@xxxxxxxxx/ arch/arm/mach-omap1/mux.c where defines omap_cfg_reg() depends on CONFIG_ARCH_OMAP1_ANY, so make CONFIG_BACKLIGHT_OMAP1 depends on CONFIG_ARCH_OMAP1_ANY to fix it. ARCH_OMAP1_ANY depends on ARCH_OMAP1, so the following logic is equivalent: ARCH_OMAP1_ANY && (ARCH_OMAP1 || COMPILE_TEST) = ARCH_OMAP1_ANY Fixes: 7036440eab3e ("ARM: omap1: enable multiplatform") Reported-by: kernel test robot <lkp@xxxxxxxxx> Signed-off-by: Yu Liao <liaoyu15@xxxxxxxxxx> --- drivers/video/backlight/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig index 936ba1e4d35e..ff66cfebe45a 100644 --- a/drivers/video/backlight/Kconfig +++ b/drivers/video/backlight/Kconfig @@ -211,7 +211,7 @@ config BACKLIGHT_LOCOMO config BACKLIGHT_OMAP1 tristate "OMAP1 PWL-based LCD Backlight" - depends on ARCH_OMAP1 || COMPILE_TEST + depends on ARCH_OMAP1_ANY default ARCH_OMAP1 help This driver controls the LCD backlight level and power for -- 2.25.1
