SIMPLE_PANEL currently only depends on PANEL && BACKLIGHT, but the code
makes references to dm_gpio_set_value and gpio_request_by_name. These
are defined in drivers/gpio/gpio-uclass.c, so a dependency on DM_GPIO
corrects these link errors:
aarch64-linux-gnu-ld.bfd: drivers/built-in.o: in function
`simple_panel_set_backlight':
/home/kameliya/u-boot/drivers/video/simple_panel.c:42: undefined reference to
`dm_gpio_set_value'
aarch64-linux-gnu-ld.bfd: drivers/built-in.o: in function
`simple_panel_enable_backlight':
/home/kameliya/u-boot/drivers/video/simple_panel.c:27: undefined reference to
`dm_gpio_set_value'
aarch64-linux-gnu-ld.bfd: drivers/built-in.o: in function
`simple_panel_of_to_plat':
/home/kameliya/u-boot/drivers/video/simple_panel.c:72: undefined reference to
`gpio_request_by_name'
This issue is only exposed if you have a board which enables
CONFIG_DM_VIDEO without CONFIG_DM_GPIO; so far, none do, but soon a QEMU
board may.
Signed-off-by: Asherah Connor <a...@kivikakk.ee>
---
drivers/video/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 667157c2e9..220c008f8a 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -209,7 +209,7 @@ config PANEL
config SIMPLE_PANEL
bool "Enable simple panel support"
- depends on PANEL && BACKLIGHT
+ depends on PANEL && BACKLIGHT && DM_GPIO
default y
help
This turns on a simple panel driver that enables a compatible
--
2.20.1
