rk3568 rt init

hc

2023-11-06 e3e12f52b214121840b44c91de5b3e5af5d3eb84

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