[PATCH] drm: rcar-du: disable dtc graph-endpoint warnings on DT overlays

[PATCH] drm: rcar-du: disable dtc graph-endpoint warnings on DT overlays

[Rob Herring]

The rcar DT overlays are missing symetrical remote-endpoint properties
in their graph nodes because the remote-endpoint is fixed up at
run-time. Disable the dtc 'graph-endpoint' warnings when compiling these
overlays. If this becomes a common problem for overlays, then perhaps
this check needs to be disabled for all overlays.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: David Airlie <airlied@linux.ie>
Cc: dri-devel@lists.freedesktop.org
Cc: linux-renesas-soc@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
---
This needs to go thru my tree because it is dependent on the dtc update 
that adds the warning (perhaps we're going to need to add option 
checking for dtc).

Rob 

 drivers/gpu/drm/rcar-du/Makefile | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/rcar-du/Makefile b/drivers/gpu/drm/rcar-du/Makefile
index 3e58ed93d5b1..2a3b8d7972b5 100644
--- a/drivers/gpu/drm/rcar-du/Makefile
+++ b/drivers/gpu/drm/rcar-du/Makefile
@@ -17,3 +17,10 @@ rcar-du-drm-$(CONFIG_DRM_RCAR_VSP)	+= rcar_du_vsp.o
 obj-$(CONFIG_DRM_RCAR_DU)		+= rcar-du-drm.o
 obj-$(CONFIG_DRM_RCAR_DW_HDMI)		+= rcar_dw_hdmi.o
 obj-$(CONFIG_DRM_RCAR_LVDS)		+= rcar_lvds.o
+
+# 'remote-endpoint' is fixed up at run-time
+DTC_FLAGS_rcar_du_of_lvds_r8a7790 += -Wno-graph_endpoint
+DTC_FLAGS_rcar_du_of_lvds_r8a7791 += -Wno-graph_endpoint
+DTC_FLAGS_rcar_du_of_lvds_r8a7793 += -Wno-graph_endpoint
+DTC_FLAGS_rcar_du_of_lvds_r8a7795 += -Wno-graph_endpoint
+DTC_FLAGS_rcar_du_of_lvds_r8a7796 += -Wno-graph_endpoint
-- 
2.17.0

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Re: [PATCH] drm: rcar-du: disable dtc graph-endpoint warnings on DT overlays

[Simon Horman]

On Fri, May 11, 2018 at 09:33:23AM -0500, Rob Herring wrote:
> The rcar DT overlays are missing symetrical remote-endpoint properties
> in their graph nodes because the remote-endpoint is fixed up at
> run-time. Disable the dtc 'graph-endpoint' warnings when compiling these
> overlays. If this becomes a common problem for overlays, then perhaps
> this check needs to be disabled for all overlays.
> 
> Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> Cc: David Airlie <airlied@linux.ie>
> Cc: dri-devel@lists.freedesktop.org
> Cc: linux-renesas-soc@vger.kernel.org
> Signed-off-by: Rob Herring <robh@kernel.org>

Acked-by: Simon Horman <horms+renesas@verge.net.au>

> ---
> This needs to go thru my tree because it is dependent on the dtc update 
> that adds the warning (perhaps we're going to need to add option 
> checking for dtc).
> 
> Rob 
> 
>  drivers/gpu/drm/rcar-du/Makefile | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/drivers/gpu/drm/rcar-du/Makefile b/drivers/gpu/drm/rcar-du/Makefile
> index 3e58ed93d5b1..2a3b8d7972b5 100644
> --- a/drivers/gpu/drm/rcar-du/Makefile
> +++ b/drivers/gpu/drm/rcar-du/Makefile
> @@ -17,3 +17,10 @@ rcar-du-drm-$(CONFIG_DRM_RCAR_VSP)	+= rcar_du_vsp.o
>  obj-$(CONFIG_DRM_RCAR_DU)		+= rcar-du-drm.o
>  obj-$(CONFIG_DRM_RCAR_DW_HDMI)		+= rcar_dw_hdmi.o
>  obj-$(CONFIG_DRM_RCAR_LVDS)		+= rcar_lvds.o
> +
> +# 'remote-endpoint' is fixed up at run-time
> +DTC_FLAGS_rcar_du_of_lvds_r8a7790 += -Wno-graph_endpoint
> +DTC_FLAGS_rcar_du_of_lvds_r8a7791 += -Wno-graph_endpoint
> +DTC_FLAGS_rcar_du_of_lvds_r8a7793 += -Wno-graph_endpoint
> +DTC_FLAGS_rcar_du_of_lvds_r8a7795 += -Wno-graph_endpoint
> +DTC_FLAGS_rcar_du_of_lvds_r8a7796 += -Wno-graph_endpoint
> -- 
> 2.17.0
> 
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Re: [PATCH] drm: rcar-du: disable dtc graph-endpoint warnings on DT overlays

[Laurent Pinchart]

Hi Rob,

Thank you for the patch.

On Friday, 11 May 2018 17:33:23 EEST Rob Herring wrote:
> The rcar DT overlays are missing symetrical remote-endpoint properties
> in their graph nodes because the remote-endpoint is fixed up at
> run-time. Disable the dtc 'graph-endpoint' warnings when compiling these
> overlays. If this becomes a common problem for overlays, then perhaps
> this check needs to be disabled for all overlays.
> 
> Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> Cc: David Airlie <airlied@linux.ie>
> Cc: dri-devel@lists.freedesktop.org
> Cc: linux-renesas-soc@vger.kernel.org
> Signed-off-by: Rob Herring <robh@kernel.org>

Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

> ---
> This needs to go thru my tree because it is dependent on the dtc update
> that adds the warning (perhaps we're going to need to add option
> checking for dtc).
> 
> Rob
> 
>  drivers/gpu/drm/rcar-du/Makefile | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/drivers/gpu/drm/rcar-du/Makefile
> b/drivers/gpu/drm/rcar-du/Makefile index 3e58ed93d5b1..2a3b8d7972b5 100644
> --- a/drivers/gpu/drm/rcar-du/Makefile
> +++ b/drivers/gpu/drm/rcar-du/Makefile
> @@ -17,3 +17,10 @@ rcar-du-drm-$(CONFIG_DRM_RCAR_VSP)	+= rcar_du_vsp.o
>  obj-$(CONFIG_DRM_RCAR_DU)		+= rcar-du-drm.o
>  obj-$(CONFIG_DRM_RCAR_DW_HDMI)		+= rcar_dw_hdmi.o
>  obj-$(CONFIG_DRM_RCAR_LVDS)		+= rcar_lvds.o
> +
> +# 'remote-endpoint' is fixed up at run-time
> +DTC_FLAGS_rcar_du_of_lvds_r8a7790 += -Wno-graph_endpoint
> +DTC_FLAGS_rcar_du_of_lvds_r8a7791 += -Wno-graph_endpoint
> +DTC_FLAGS_rcar_du_of_lvds_r8a7793 += -Wno-graph_endpoint
> +DTC_FLAGS_rcar_du_of_lvds_r8a7795 += -Wno-graph_endpoint
> +DTC_FLAGS_rcar_du_of_lvds_r8a7796 += -Wno-graph_endpoint


-- 
Regards,

Laurent Pinchart



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