DISP_REG_OVL_EN 107 drivers/gpu/drm/mediatek/mtk_disp_ovl.c writel_relaxed(0x1, comp->regs + DISP_REG_OVL_EN); DISP_REG_OVL_EN 112 drivers/gpu/drm/mediatek/mtk_disp_ovl.c writel_relaxed(0x0, comp->regs + DISP_REG_OVL_EN);