drm: Don't include <drm/drm_encoder.h> in <drm/drm_crtc.h>

<drm/drm_crtc.h> used to define most of the in-kernel KMS API. It has
now been split into separate files for each object type, but still
includes most other KMS headers to avoid breaking driver compilation.

As a step towards fixing that problem, remove the inclusion of
<drm/drm_encoder.h> from <drm/drm_crtc.h> and include it instead where
appropriate. Also remove the forward declarations of the drm_encoder and
drm_encoder_helper_funcs structures from <drm/drm_crtc.h> as they're not
needed in the header.

<drm/drm_encoder.h> now has to include <drm/drm_mode.h> and contain a
forward declaration of struct drm_encoder in order to allow including it
as the first header in a compilation unit.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Sinclair Yeh <syeh@vmware.com> # For vmwgfx
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1481709550-29226-2-git-send-email-laurent.pinchart+renesas@ideasonboard.com

drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h

@@ -32,6 +32,7 @@
 
 #include <drm/drm_crtc.h>
 #include <drm/drm_edid.h>
+#include <drm/drm_encoder.h>
 #include <drm/drm_dp_helper.h>
 #include <drm/drm_fixed.h>
 #include <drm/drm_crtc_helper.h>

drivers/gpu/drm/ast/ast_drv.h

@@ -28,6 +28,7 @@
 #ifndef __AST_DRV_H__
 #define __AST_DRV_H__
 
+#include <drm/drm_encoder.h>
 #include <drm/drm_fb_helper.h>
 
 #include <drm/ttm/ttm_bo_api.h>

drivers/gpu/drm/bochs/bochs.h

@@ -4,6 +4,7 @@
 #include <drm/drmP.h>
 #include <drm/drm_crtc.h>
 #include <drm/drm_crtc_helper.h>
+#include <drm/drm_encoder.h>
 #include <drm/drm_fb_helper.h>
 
 #include <drm/drm_gem.h>

drivers/gpu/drm/cirrus/cirrus_drv.h

@@ -13,6 +13,7 @@
 
 #include <video/vga.h>
 
+#include <drm/drm_encoder.h>
 #include <drm/drm_fb_helper.h>
 
 #include <drm/ttm/ttm_bo_api.h>

drivers/gpu/drm/drm_connector.c

@@ -23,6 +23,7 @@
 #include <drm/drmP.h>
 #include <drm/drm_connector.h>
 #include <drm/drm_edid.h>
+#include <drm/drm_encoder.h>
 
 #include "drm_crtc_internal.h"
 #include "drm_internal.h"

drivers/gpu/drm/drm_crtc_helper.c

@@ -36,6 +36,7 @@
 #include <drm/drmP.h>
 #include <drm/drm_atomic.h>
 #include <drm/drm_crtc.h>
+#include <drm/drm_encoder.h>
 #include <drm/drm_fourcc.h>
 #include <drm/drm_crtc_helper.h>
 #include <drm/drm_fb_helper.h>

drivers/gpu/drm/drm_edid.c

@@ -35,6 +35,7 @@
 #include <linux/vga_switcheroo.h>
 #include <drm/drmP.h>
 #include <drm/drm_edid.h>
+#include <drm/drm_encoder.h>
 #include <drm/drm_displayid.h>
 
 #define version_greater(edid, maj, min) \

drivers/gpu/drm/drm_mode_config.c

@@ -20,6 +20,7 @@
  * OF THIS SOFTWARE.
  */
 
+#include <drm/drm_encoder.h>
 #include <drm/drm_mode_config.h>
 #include <drm/drmP.h>
 

drivers/gpu/drm/drm_of.c

@@ -4,6 +4,7 @@
 #include <linux/of_graph.h>
 #include <drm/drmP.h>
 #include <drm/drm_crtc.h>
+#include <drm/drm_encoder.h>
 #include <drm/drm_of.h>
 
 static void drm_release_of(struct device *dev, void *data)

drivers/gpu/drm/drm_plane_helper.c

@@ -29,6 +29,7 @@
 #include <drm/drm_rect.h>
 #include <drm/drm_atomic.h>
 #include <drm/drm_crtc_helper.h>
+#include <drm/drm_encoder.h>
 #include <drm/drm_atomic_helper.h>
 
 #define SUBPIXEL_MASK 0xffff

drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.h

@@ -12,6 +12,8 @@
 #ifndef __FSL_DCU_DRM_DRV_H__
 #define __FSL_DCU_DRM_DRV_H__
 
+#include <drm/drm_encoder.h>
+
 #include "fsl_dcu_drm_crtc.h"
 #include "fsl_dcu_drm_output.h"
 #include "fsl_dcu_drm_plane.h"

drivers/gpu/drm/gma500/psb_intel_drv.h

@@ -23,6 +23,7 @@
 #include <linux/i2c-algo-bit.h>
 #include <drm/drm_crtc.h>
 #include <drm/drm_crtc_helper.h>
+#include <drm/drm_encoder.h>
 #include <linux/gpio.h>
 #include "gma_display.h"
 

drivers/gpu/drm/i915/intel_drv.h

@@ -32,6 +32,7 @@
 #include "i915_drv.h"
 #include <drm/drm_crtc.h>
 #include <drm/drm_crtc_helper.h>
+#include <drm/drm_encoder.h>
 #include <drm/drm_fb_helper.h>
 #include <drm/drm_dp_dual_mode_helper.h>
 #include <drm/drm_dp_mst_helper.h>

drivers/gpu/drm/mgag200/mgag200_drv.h

@@ -15,6 +15,7 @@
 
 #include <video/vga.h>
 
+#include <drm/drm_encoder.h>
 #include <drm/drm_fb_helper.h>
 #include <drm/ttm/ttm_bo_api.h>
 #include <drm/ttm/ttm_bo_driver.h>

drivers/gpu/drm/nouveau/nouveau_connector.h

@@ -30,6 +30,7 @@
 #include <nvif/notify.h>
 
 #include <drm/drm_edid.h>
+#include <drm/drm_encoder.h>
 #include <drm/drm_dp_helper.h>
 #include "nouveau_crtc.h"
 

drivers/gpu/drm/qxl/qxl_drv.h

@@ -43,6 +43,7 @@
 #include <ttm/ttm_placement.h>
 #include <ttm/ttm_module.h>
 
+#include <drm/drm_encoder.h>
 #include <drm/drm_gem.h>
 
 /* just for ttm_validate_buffer */

drivers/gpu/drm/radeon/radeon_mode.h

@@ -32,6 +32,7 @@
 
 #include <drm/drm_crtc.h>
 #include <drm/drm_edid.h>
+#include <drm/drm_encoder.h>
 #include <drm/drm_dp_helper.h>
 #include <drm/drm_dp_mst_helper.h>
 #include <drm/drm_fixed.h>

drivers/gpu/drm/rcar-du/rcar_du_encoder.h

@@ -15,6 +15,7 @@
 #define __RCAR_DU_ENCODER_H__
 
 #include <drm/drm_crtc.h>
+#include <drm/drm_encoder.h>
 
 struct rcar_du_device;
 struct rcar_du_hdmienc;

drivers/gpu/drm/shmobile/shmob_drm_crtc.h

@@ -16,6 +16,7 @@
 
 #include <drm/drmP.h>
 #include <drm/drm_crtc.h>
+#include <drm/drm_encoder.h>
 
 struct backlight_device;
 struct shmob_drm_device;

drivers/gpu/drm/tegra/drm.h

@@ -17,6 +17,7 @@
 #include <drm/drmP.h>
 #include <drm/drm_crtc_helper.h>
 #include <drm/drm_edid.h>
+#include <drm/drm_encoder.h>
 #include <drm/drm_fb_helper.h>
 #include <drm/drm_fixed.h>
 

drivers/gpu/drm/vc4/vc4_drv.h

@@ -9,6 +9,8 @@
 #include "drmP.h"
 #include "drm_gem_cma_helper.h"
 
+#include <drm/drm_encoder.h>
+
 struct vc4_dev {
 	struct drm_device *dev;
 

drivers/gpu/drm/virtio/virtgpu_drv.h

@@ -35,6 +35,7 @@
 #include <drm/drm_gem.h>
 #include <drm/drm_atomic.h>
 #include <drm/drm_crtc_helper.h>
+#include <drm/drm_encoder.h>
 #include <ttm/ttm_bo_api.h>
 #include <ttm/ttm_bo_driver.h>
 #include <ttm/ttm_placement.h>

drivers/gpu/drm/vmwgfx/vmwgfx_kms.h

@@ -30,6 +30,7 @@
 
 #include <drm/drmP.h>
 #include <drm/drm_crtc_helper.h>
+#include <drm/drm_encoder.h>
 #include "vmwgfx_drv.h"
 
 /**

include/drm/drm_crtc.h

@@ -39,7 +39,6 @@
 #include <drm/drm_framebuffer.h>
 #include <drm/drm_modes.h>
 #include <drm/drm_connector.h>
-#include <drm/drm_encoder.h>
 #include <drm/drm_property.h>
 #include <drm/drm_bridge.h>
 #include <drm/drm_edid.h>
@@ -68,14 +67,12 @@ static inline uint64_t I642U64(int64_t val)
 }
 
 struct drm_crtc;
-struct drm_encoder;
 struct drm_pending_vblank_event;
 struct drm_plane;
 struct drm_bridge;
 struct drm_atomic_state;
 
 struct drm_crtc_helper_funcs;
-struct drm_encoder_helper_funcs;
 struct drm_plane_helper_funcs;
 
 /**

include/drm/drm_encoder.h

@@ -25,8 +25,11 @@
 
 #include <linux/list.h>
 #include <linux/ctype.h>
+#include <drm/drm_mode.h>
 #include <drm/drm_mode_object.h>
 
+struct drm_encoder;
+
 /**
  * struct drm_encoder_funcs - encoder controls
  *

include/drm/drm_encoder_slave.h

@@ -29,6 +29,7 @@
 
 #include <drm/drmP.h>
 #include <drm/drm_crtc.h>
+#include <drm/drm_encoder.h>
 
 /**
  * struct drm_encoder_slave_funcs - Entry points exposed by a slave encoder driver

include/drm/drm_modeset_helper_vtables.h

@@ -30,6 +30,7 @@
 #define __DRM_MODESET_HELPER_VTABLES_H__
 
 #include <drm/drm_crtc.h>
+#include <drm/drm_encoder.h>
 
 /**
  * DOC: overview