static void vc4_crtc_atomic_disable(struct drm_crtc *crtc,
struct drm_crtc_state *old_state)
{
+ struct vc4_crtc_state *vc4_state = to_vc4_crtc_state(crtc->state);
struct drm_device *dev = crtc->dev;
struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
int ret;
/* Disable vblank irq handling before crtc is disabled. */
drm_crtc_vblank_off(crtc);
- CRTC_WRITE(PV_V_CONTROL,
- CRTC_READ(PV_V_CONTROL) & ~PV_VCONTROL_VIDEN);
- ret = wait_for(!(CRTC_READ(PV_V_CONTROL) & PV_VCONTROL_VIDEN), 1);
- WARN_ONCE(ret, "Timeout waiting for !PV_VCONTROL_VIDEN\n");
+ if (!vc4_state->feed_txp) {
+ CRTC_WRITE(PV_V_CONTROL,
+ CRTC_READ(PV_V_CONTROL) & ~PV_VCONTROL_VIDEN);
+ ret = wait_for(!(CRTC_READ(PV_V_CONTROL) & PV_VCONTROL_VIDEN), 1);
+ WARN_ONCE(ret, "Timeout waiting for !PV_VCONTROL_VIDEN\n");
+ }
vc4_hvs_atomic_disable(crtc, old_state);
static int vc4_enable_vblank(struct drm_crtc *crtc)
{
struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
+ struct vc4_crtc_state *vc4_state = to_vc4_crtc_state(crtc->state);
+
+ if (vc4_state->feed_txp)
+ return 0;
CRTC_WRITE(PV_INTEN, PV_INT_VFP_START);
static void vc4_disable_vblank(struct drm_crtc *crtc)
{
struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
+ struct vc4_crtc_state *vc4_state = to_vc4_crtc_state(crtc->state);
+
+ if (vc4_state->feed_txp)
+ return;
CRTC_WRITE(PV_INTEN, 0);
}