Re: [PATCH] usb: typec: nb7vpq904m: add CONFIG_OF dependency

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On Wed, Dec 06, 2023 at 01:38:14PM +0100, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@xxxxxxxx>
> 
> DRM_AUX_BRIDGE depends on CONFIG_OF, so the same dependency is needed
> here to avoid a build failure:
> 
> WARNING: unmet direct dependencies detected for DRM_AUX_BRIDGE
>   Depends on [n]: HAS_IOMEM [=y] && DRM_BRIDGE [=y] && OF [=n]
>   Selected by [y]:
>   - TYPEC_MUX_NB7VPQ904M [=y] && USB_SUPPORT [=y] && TYPEC [=y] && I2C [=y] && (DRM [=y] || DRM [=y]=n) && DRM_BRIDGE [=y]
> x86_64-linux-ld: drivers/gpu/drm/bridge/aux-bridge.o: in function `drm_aux_bridge_register':
> aux-bridge.c:(.text+0x13b): undefined reference to `auxiliary_device_init'
> x86_64-linux-ld: aux-bridge.c:(.text+0x14d): undefined reference to `__auxiliary_device_add'
> x86_64-linux-ld: drivers/gpu/drm/bridge/aux-bridge.o: in function `drm_aux_bridge_drv_init':
> aux-bridge.c:(.init.text+0x15): undefined reference to `__auxiliary_driver_register'
> x86_64-linux-ld: drivers/gpu/drm/bridge/aux-bridge.o: in function `drm_aux_bridge_drv_exit':
> aux-bridge.c:(.exit.text+0x9): undefined reference to `auxiliary_driver_unregister'
> 
> Fixes: c5d296bad640 ("usb: typec: nb7vpq904m: switch to DRM_AUX_BRIDGE")
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
> ---
>  drivers/usb/typec/mux/Kconfig | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/usb/typec/mux/Kconfig b/drivers/usb/typec/mux/Kconfig
> index 5120942f309d..818624f59120 100644
> --- a/drivers/usb/typec/mux/Kconfig
> +++ b/drivers/usb/typec/mux/Kconfig
> @@ -40,6 +40,7 @@ config TYPEC_MUX_NB7VPQ904M
>  	tristate "On Semiconductor NB7VPQ904M Type-C redriver driver"
>  	depends on I2C
>  	depends on DRM || DRM=n
> +	depends on OF
>  	select DRM_AUX_BRIDGE if DRM_BRIDGE
>  	select REGMAP_I2C
>  	help

Shouldn't DRM_BRIDGE depend on OF instead?

thanks,

-- 
heikki




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