DC_COM_DSC_TOP_CTL
dsc_top_ctrl = readl_relaxed(dispa_base + DC_COM_DSC_TOP_CTL);
writel_relaxed(dsc_top_ctrl | BIT(2), dispa_base + DC_COM_DSC_TOP_CTL);
writel_relaxed(dsc_top_ctrl, dispa_base + DC_COM_DSC_TOP_CTL);