From 7d07b3ae8ddad407913c5301877e694430a3263f Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Thu, 23 Nov 2023 08:24:31 +0000
Subject: [PATCH] add build kerneldeb

---
 kernel/drivers/gpu/drm/rockchip/rockchip_drm_vop.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/kernel/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/kernel/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
index 5eb9265..7bb333f 100644
--- a/kernel/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
+++ b/kernel/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
@@ -1670,6 +1670,12 @@
 	vop = to_vop(crtc);
 	vop_data = vop->data;
 
+	if (VOP_MAJOR(vop->version) == 2 && is_alpha_support(fb->format->format) &&
+	    vop_plane_state->global_alpha != 0xff) {
+		DRM_ERROR("Pixel alpha and global alpha can't be enabled at the same time\n");
+		return -EINVAL;
+	}
+
 	if (state->src_w >> 16 < 4 || state->src_h >> 16 < 4 ||
 	    state->crtc_w < 4 || state->crtc_h < 4) {
 		DRM_ERROR("Invalid size: %dx%d->%dx%d, min size is 4x4\n",

--
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