With the following config set:
CONFIG_DRM=m
CONFIG_DRM_PANEL=y
CONFIG_DRM_BRIDGE=y
CONFIG_DRM_PANEL_BRIDGE=y
CONFIG_TYPEC_MUX_NB7VPQ904M=y
vmlinux fails on the following symbols:
ld.lld: error: undefined symbol: devm_drm_bridge_add
ld.lld: error: undefined symbol: devm_drm_of_get_bridge
Add dependendy on DRM || DRM=no since CONFIG_DRM dependency is optional
and guarded by:
IS_ENABLED(CONFIG_OF) && IS_ENABLED(CONFIG_DRM_PANEL_BRIDGE)
in the drive.
Also add "select DRM_PANEL_BRIDGE if DRM" to clarify DRM_PANEL_BRIDGE
is required if CONFIG_DRM is enabled.
Fixes: 88d8f3ac9c67 ("usb: typec: add support for the nb7vpq904m Type-C Linear Redriver")
Reported-by: Arnd Bergmann <arnd@xxxxxxxxxx>
Suggested-by: Arnd Bergmann <arnd@xxxxxxxxxx>
Signed-off-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx>
---
This is re-spin of [1]
[1] https://lore.kernel.org/all/20230622101813.3453772-1-arnd@xxxxxxxxxx/
---
drivers/usb/typec/mux/Kconfig | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/usb/typec/mux/Kconfig b/drivers/usb/typec/mux/Kconfig
index 8c4d6b8fb75c..784b9d8107e9 100644
--- a/drivers/usb/typec/mux/Kconfig
+++ b/drivers/usb/typec/mux/Kconfig
@@ -38,6 +38,8 @@ config TYPEC_MUX_INTEL_PMC
config TYPEC_MUX_NB7VPQ904M
tristate "On Semiconductor NB7VPQ904M Type-C redriver driver"
depends on I2C
+ depends on DRM || DRM=n
+ select DRM_PANEL_BRIDGE if DRM
select REGMAP_I2C
help
Say Y or M if your system has a On Semiconductor NB7VPQ904M Type-C
---
base-commit: c87d46a9e8ebd2f2c3960927b1d21687096d1109
change-id: 20230622-topic-sm8x50-upstream-redriver-config-fix-8f0aef3e2129
Best regards,
--
Neil Armstrong <neil.armstrong@xxxxxxxxxx>
