drm: kirin: Move ade crtc/plane help functions to driver_data

As part of refactoring the kirin driver to better support
different hardware revisions, this patch moves the crtc
and plane funcs/helper_funcs to the struct kirin_drm_data.

This will make it easier to add support for new devices
via a new kirin_drm_data structure.

Cc: Rongrong Zou <zourongrong@gmail.com>
Cc: Xinliang Liu <z.liuxinliang@hisilicon.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel <dri-devel@lists.freedesktop.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Xinliang Liu <z.liuxinliang@hisilicon.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Xu YiPing <xuyiping@hisilicon.com>
[jstultz: reworded commit message]
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190820230626.23253-14-john.stultz@linaro.org

drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c

@@ -602,13 +602,13 @@ static int ade_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
 	crtc->port = port;
 
 	ret = drm_crtc_init_with_planes(dev, crtc, plane, NULL,
-					&ade_crtc_funcs, NULL);
+					ade_driver_data.crtc_funcs, NULL);
 	if (ret) {
 		DRM_ERROR("failed to init crtc.\n");
 		return ret;
 	}
 
-	drm_crtc_helper_add(crtc, &ade_crtc_helper_funcs);
+	drm_crtc_helper_add(crtc, ade_driver_data.crtc_helper_funcs);
 
 	return 0;
 }
@@ -917,14 +917,15 @@ static int ade_plane_init(struct drm_device *dev, struct kirin_plane *kplane,
 	if (ret)
 		return ret;
 
-	ret = drm_universal_plane_init(dev, &kplane->base, 1, &ade_plane_funcs,
-				       fmts, fmts_cnt, NULL, type, NULL);
+	ret = drm_universal_plane_init(dev, &kplane->base, 1,
+				       ade_driver_data.plane_funcs, fmts,
+				       fmts_cnt, NULL, type, NULL);
 	if (ret) {
 		DRM_ERROR("fail to init plane, ch=%d\n", kplane->ch);
 		return ret;
 	}
 
-	drm_plane_helper_add(&kplane->base, &ade_plane_helper_funcs);
+	drm_plane_helper_add(&kplane->base, ade_driver_data.plane_helper_funcs);
 
 	return 0;
 }
@@ -1056,6 +1057,10 @@ static void ade_drm_cleanup(struct platform_device *pdev)
 }
 
 struct kirin_drm_data ade_driver_data = {
+	.crtc_helper_funcs = &ade_crtc_helper_funcs,
+	.crtc_funcs = &ade_crtc_funcs,
+	.plane_helper_funcs = &ade_plane_helper_funcs,
+	.plane_funcs = &ade_plane_funcs,
 	.init = ade_drm_init,
 	.cleanup = ade_drm_cleanup
 };

drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.h

@@ -35,6 +35,11 @@ struct kirin_plane {
 
 /* display controller init/cleanup ops */
 struct kirin_drm_data {
+	const struct drm_crtc_helper_funcs *crtc_helper_funcs;
+	const struct drm_crtc_funcs *crtc_funcs;
+	const struct drm_plane_helper_funcs *plane_helper_funcs;
+	const struct drm_plane_funcs  *plane_funcs;
+
 	int (*init)(struct platform_device *pdev);
 	void (*cleanup)(struct platform_device *pdev);
 };