Setting the DISPLISTx register needs to occur in every case, and we don't need to protect the register using the event_lock, so we can just move it after the if branches and simplify a bit the function.
Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/gpu/drm/vc4/vc4_hvs.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/vc4/vc4_hvs.c b/drivers/gpu/drm/vc4/vc4_hvs.c index d225eea6e640..71aa5081eaa3 100644 --- a/drivers/gpu/drm/vc4/vc4_hvs.c +++ b/drivers/gpu/drm/vc4/vc4_hvs.c @@ -402,15 +402,12 @@ static void vc4_hvs_update_dlist(struct drm_crtc *crtc) crtc->state->event = NULL; }
- HVS_WRITE(SCALER_DISPLISTX(vc4_state->assigned_channel), - vc4_state->mm.start); - spin_unlock_irqrestore(&dev->event_lock, flags); - } else { - HVS_WRITE(SCALER_DISPLISTX(vc4_state->assigned_channel), - vc4_state->mm.start); }
+ HVS_WRITE(SCALER_DISPLISTX(vc4_state->assigned_channel), + vc4_state->mm.start); + spin_lock_irqsave(&vc4_crtc->irq_lock, flags); vc4_crtc->current_dlist = vc4_state->mm.start; spin_unlock_irqrestore(&vc4_crtc->irq_lock, flags);