add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/gpu/drm/rockchip/ebc-dev/epdlut/epd_lut.c
..
..
@@ -70,9 +70,3 @@
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 {
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 	return lut_get(output, lut_type, temperture);
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 }
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-
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-//you can change overlay lut mode here
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-int epd_overlay_lut(void)
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-{
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-	return WF_TYPE_GRAY2;
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-}