From e7bab36945dc21579b99afd9333caafd4d06321d Mon Sep 17 00:00:00 2001
From: Evan Benn <evanbenn@chromium.org>
Date: Fri, 7 Feb 2020 15:23:51 +1100
Subject: drm/mediatek: Find the cursor plane instead of hard coding it
Git-commit: 318caac7c81cdf5806df30c3d72385659a5f0f53
Patch-mainline: v5.6-rc5
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322

The cursor and primary planes were hard coded.
Now search for them for passing to drm_crtc_init_with_planes

Signed-off-by: Evan Benn <evanbenn@chromium.org>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: CK Hu <ck.hu@mediatek.com>
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
 drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
index 0dfcd1787e65..5ee74d7ce35c 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
@@ -636,10 +636,18 @@ static const struct drm_crtc_helper_funcs mtk_crtc_helper_funcs = {
 
 static int mtk_drm_crtc_init(struct drm_device *drm,
 			     struct mtk_drm_crtc *mtk_crtc,
-			     struct drm_plane *primary,
-			     struct drm_plane *cursor, unsigned int pipe)
+			     unsigned int pipe)
 {
-	int ret;
+	struct drm_plane *primary = NULL;
+	struct drm_plane *cursor = NULL;
+	int i, ret;
+
+	for (i = 0; i < mtk_crtc->layer_nr; i++) {
+		if (mtk_crtc->planes[i].type == DRM_PLANE_TYPE_PRIMARY)
+			primary = &mtk_crtc->planes[i];
+		else if (mtk_crtc->planes[i].type == DRM_PLANE_TYPE_CURSOR)
+			cursor = &mtk_crtc->planes[i];
+	}
 
 	ret = drm_crtc_init_with_planes(drm, &mtk_crtc->base, primary, cursor,
 					&mtk_crtc_funcs, NULL);
@@ -807,9 +815,7 @@ int mtk_drm_crtc_create(struct drm_device *drm_dev,
 			return ret;
 	}
 
-	ret = mtk_drm_crtc_init(drm_dev, mtk_crtc, &mtk_crtc->planes[0],
-				mtk_crtc->layer_nr > 1 ? &mtk_crtc->planes[1] :
-				NULL, pipe);
+	ret = mtk_drm_crtc_init(drm_dev, mtk_crtc, pipe);
 	if (ret < 0)
 		return ret;
 
-- 
2.28.0