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From:   Laurent Pinchart <laurent.pinchart@ideasonboard.com>
To:     Sam Ravnborg <sam@ravnborg.org>
Cc:     Daniel Vetter <daniel@ffwll.ch>, David Airlie <airlied@linux.ie>,
        Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
        Maxime Ripard <maxime.ripard@bootlin.com>,
        Sean Paul <sean@poorly.run>, linux-kernel@vger.kernel.org,
        dri-devel@lists.freedesktop.org,
        Alexey Brodkin <abrodkin@synopsys.com>,
        Archit Taneja <architt@codeaurora.org>,
        Andrzej Hajda <a.hajda@samsung.com>,
        Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Subject: Re: [PATCH v1 6/7] drm: remove include of drmP.h from drm_modeset_helper.h
Date:   Thu, 27 Dec 2018 12:04:32 +0200
Message-ID: <8497582.5Vic9fWd66@avalon>
Organization: Ideas on Board Oy
In-Reply-To: <20181226210353.13993-6-sam@ravnborg.org>
References: <20181226210215.GA27610@ravnborg.org> <20181226210353.13993-6-sam@ravnborg.org>
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Hi Sam,

Thank you for the patch.

On Wednesday, 26 December 2018 23:03:52 EET Sam Ravnborg wrote:
> Fix fallout in various files/drivers by adding missing include files.
> 
> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
> Cc: Alexey Brodkin <abrodkin@synopsys.com>
> Cc: David Airlie <airlied@linux.ie>
> Cc: Daniel Vetter <daniel@ffwll.ch>
> Cc: Archit Taneja <architt@codeaurora.org>
> Cc: Andrzej Hajda <a.hajda@samsung.com>
> Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
> Cc: Maxime Ripard <maxime.ripard@bootlin.com>
> Cc: Sean Paul <sean@poorly.run>
> Cc: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
> ---
>  drivers/gpu/drm/arc/arcpgu_sim.c     | 1 +
>  drivers/gpu/drm/bridge/cdns-dsi.c    | 2 ++
>  drivers/gpu/drm/drm_modeset_helper.c | 2 ++
>  drivers/gpu/drm/rcar-du/rcar_lvds.c  | 1 +
>  include/drm/drm_modeset_helper.h     | 2 --
>  5 files changed, 6 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/arc/arcpgu_sim.c
> b/drivers/gpu/drm/arc/arcpgu_sim.c index 68629e614990..3b7556f62230 100644
> --- a/drivers/gpu/drm/arc/arcpgu_sim.c
> +++ b/drivers/gpu/drm/arc/arcpgu_sim.c
> @@ -14,6 +14,7 @@
>   *
>   */
> 
> +#include <drm/drm_device.h>
>  #include <drm/drm_crtc_helper.h>
>  #include <drm/drm_atomic_helper.h>
> 
> diff --git a/drivers/gpu/drm/bridge/cdns-dsi.c
> b/drivers/gpu/drm/bridge/cdns-dsi.c index ce9496d13986..4b73d0969468 100644
> --- a/drivers/gpu/drm/bridge/cdns-dsi.c
> +++ b/drivers/gpu/drm/bridge/cdns-dsi.c
> @@ -8,11 +8,13 @@
>  #include <drm/drm_atomic_helper.h>
>  #include <drm/drm_bridge.h>
>  #include <drm/drm_crtc_helper.h>
> +#include <drm/drm_drv.h>
>  #include <drm/drm_mipi_dsi.h>
>  #include <drm/drm_panel.h>
>  #include <video/mipi_display.h>
> 
>  #include <linux/clk.h>
> +#include <linux/interrupt.h>
>  #include <linux/iopoll.h>
>  #include <linux/module.h>
>  #include <linux/of_address.h>
> diff --git a/drivers/gpu/drm/drm_modeset_helper.c
> b/drivers/gpu/drm/drm_modeset_helper.c index f1c24ab0ef09..680cb6a5978c
> 100644
> --- a/drivers/gpu/drm/drm_modeset_helper.c
> +++ b/drivers/gpu/drm/drm_modeset_helper.c
> @@ -23,8 +23,10 @@
>  #include <drm/drm_atomic_helper.h>
>  #include <drm/drm_crtc_helper.h>
>  #include <drm/drm_fb_helper.h>
> +#include <drm/drm_fourcc.h>
>  #include <drm/drm_modeset_helper.h>
>  #include <drm/drm_plane_helper.h>
> +#include <drm/drm_print.h>
> 
>  /**
>   * DOC: aux kms helpers
> diff --git a/drivers/gpu/drm/rcar-du/rcar_lvds.c
> b/drivers/gpu/drm/rcar-du/rcar_lvds.c index 173d7ad0b991..f1043458cbd8
> 100644
> --- a/drivers/gpu/drm/rcar-du/rcar_lvds.c
> +++ b/drivers/gpu/drm/rcar-du/rcar_lvds.c
> @@ -10,6 +10,7 @@
>  #include <linux/clk.h>
>  #include <linux/delay.h>
>  #include <linux/io.h>
> +#include <linux/module.h>
>  #include <linux/of.h>
>  #include <linux/of_device.h>
>  #include <linux/of_graph.h>
> diff --git a/include/drm/drm_modeset_helper.h
> b/include/drm/drm_modeset_helper.h index efa337f03129..82ead67dfa36 100644
> --- a/include/drm/drm_modeset_helper.h
> +++ b/include/drm/drm_modeset_helper.h
> @@ -23,8 +23,6 @@
>  #ifndef __DRM_KMS_HELPER_H__
>  #define __DRM_KMS_HELPER_H__
> 
> -#include <drm/drmP.h>

Please add forward declarations for all structures used as pointers in this 
file. We shouldn't rely on the files including drm_modeset_helper.h to provide 
definitions or declarations for those structures.

With that fixed,

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

>  void drm_helper_move_panel_connectors_to_head(struct drm_device *);
> 
>  void drm_helper_mode_fill_fb_struct(struct drm_device *dev,

-- 
Regards,

Laurent Pinchart