Re: [PATCH] drm: xlnx: fix build warning & errors when DMADEVICES is not set

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On 9/3/20 9:41 PM, Randy Dunlap wrote:
> From: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
> 
> Fix kconfig warnings & build errors caused by DRM_ZYNQMP_DPSUB.
> 
> Any driver that selects DMA_ENGINE should make sure that
> DMADEVICES is already enabled.
> As is, this causes build errors in many other drivers.
> 
> See https://lore.kernel.org/lkml/202009020239.oUPh82Xc%25lkp@xxxxxxxxx/
> for the numerous build errors.
> 
> WARNING: unmet direct dependencies detected for DMA_ENGINE
>   Depends on [n]: DMADEVICES [=n]
>   Selected by [y]:
>   - DRM_ZYNQMP_DPSUB [=y] && HAS_IOMEM [=y] && (ARCH_ZYNQMP || COMPILE_TEST [=y]) && COMMON_CLK [=y] && DRM [=y] && OF [=y]
> 

Sorry, this is a duplicate of a patch that Laurent has already posted
so my patch isn't needed.

> Reported-by: kernel test robot <lkp@xxxxxxxxx>
> Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
> Cc: Hyun Kwon <hyun.kwon@xxxxxxxxxx>
> Cc: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
> ---
>  drivers/gpu/drm/xlnx/Kconfig |    1 +
>  1 file changed, 1 insertion(+)
> 
> --- linux-next-20200903.orig/drivers/gpu/drm/xlnx/Kconfig
> +++ linux-next-20200903/drivers/gpu/drm/xlnx/Kconfig
> @@ -2,6 +2,7 @@ config DRM_ZYNQMP_DPSUB
>  	tristate "ZynqMP DisplayPort Controller Driver"
>  	depends on ARCH_ZYNQMP || COMPILE_TEST
>  	depends on COMMON_CLK && DRM && OF
> +	depends on DMADEVICES
>  	select DMA_ENGINE
>  	select DRM_GEM_CMA_HELPER
>  	select DRM_KMS_CMA_HELPER
> 


-- 
~Randy

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