CRTC_READ
CRTC_WRITE(PV_CONTROL, CRTC_READ(PV_CONTROL) & ~PV_CONTROL_EN);
CRTC_WRITE(PV_CONTROL, CRTC_READ(PV_CONTROL) | PV_CONTROL_FIFO_CLR);
CRTC_READ(PV_V_CONTROL) & ~PV_VCONTROL_VIDEN);
ret = wait_for(!(CRTC_READ(PV_V_CONTROL) & PV_VCONTROL_VIDEN), 1);
if (!(CRTC_READ(PV_CONTROL) & PV_CONTROL_EN))
if (!(CRTC_READ(PV_V_CONTROL) & PV_VCONTROL_VIDEN))
encoder_sel = VC4_GET_FIELD(CRTC_READ(PV_CONTROL), PV_CONTROL_CLK_SELECT);
CRTC_WRITE(PV_CONTROL, CRTC_READ(PV_CONTROL) | PV_CONTROL_EN);
CRTC_READ(PV_V_CONTROL) | PV_VCONTROL_VIDEN);
u32 stat = CRTC_READ(PV_INTSTAT);