HDMI_NV_PDISP_SOR_STATE1
WR4(sc, HDMI_NV_PDISP_SOR_STATE1, SOR_STATE1_ASY_ORMODE_NORMAL |
val = RD4(sc, HDMI_NV_PDISP_SOR_STATE1);
WR4(sc, HDMI_NV_PDISP_SOR_STATE1, val);