The vblank event is armed in the plane .atomic_update(). This works fine as we have a single plane, and was the only option when the driver was using the drm_simple_kms_helper helper, but will break as soon as multiple planes are supported. Move it to CRTC .atomic_flush().
Signed-off-by: Laurent Pinchart laurent.pinchart@ideasonboard.com Reviewed-by: Stefan Agner stefan@agner.ch Reviewed-by: Emil Velikov emil.l.velikov@gmail.com --- Changes since v1:
- Reword commit message --- drivers/gpu/drm/mxsfb/mxsfb_kms.c | 35 ++++++++++++++++++------------- 1 file changed, 20 insertions(+), 15 deletions(-)
diff --git a/drivers/gpu/drm/mxsfb/mxsfb_kms.c b/drivers/gpu/drm/mxsfb/mxsfb_kms.c index 2346ad56daea..770546e67a8d 100644 --- a/drivers/gpu/drm/mxsfb/mxsfb_kms.c +++ b/drivers/gpu/drm/mxsfb/mxsfb_kms.c @@ -295,6 +295,25 @@ static int mxsfb_crtc_atomic_check(struct drm_crtc *crtc, return drm_atomic_add_affected_planes(state->state, crtc); }
+static void mxsfb_crtc_atomic_flush(struct drm_crtc *crtc, + struct drm_crtc_state *old_state) +{ + struct drm_pending_vblank_event *event; + + event = crtc->state->event; + crtc->state->event = NULL; + + if (!event) + return; + + spin_lock_irq(&crtc->dev->event_lock); + if (drm_crtc_vblank_get(crtc) == 0) + drm_crtc_arm_vblank_event(crtc, event); + else + drm_crtc_send_vblank_event(crtc, event); + spin_unlock_irq(&crtc->dev->event_lock); +} + static void mxsfb_crtc_atomic_enable(struct drm_crtc *crtc, struct drm_crtc_state *old_state) { @@ -364,6 +383,7 @@ static void mxsfb_crtc_disable_vblank(struct drm_crtc *crtc)
static const struct drm_crtc_helper_funcs mxsfb_crtc_helper_funcs = { .atomic_check = mxsfb_crtc_atomic_check, + .atomic_flush = mxsfb_crtc_atomic_flush, .atomic_enable = mxsfb_crtc_atomic_enable, .atomic_disable = mxsfb_crtc_atomic_disable, }; @@ -410,23 +430,8 @@ static void mxsfb_plane_atomic_update(struct drm_plane *plane, struct drm_plane_state *old_pstate) { struct mxsfb_drm_private *mxsfb = to_mxsfb_drm_private(plane->dev); - struct drm_crtc *crtc = &mxsfb->crtc; - struct drm_pending_vblank_event *event; dma_addr_t paddr;
- spin_lock_irq(&crtc->dev->event_lock); - event = crtc->state->event; - if (event) { - crtc->state->event = NULL; - - if (drm_crtc_vblank_get(crtc) == 0) { - drm_crtc_arm_vblank_event(crtc, event); - } else { - drm_crtc_send_vblank_event(crtc, event); - } - } - spin_unlock_irq(&crtc->dev->event_lock); - paddr = mxsfb_get_fb_paddr(mxsfb); if (paddr) { mxsfb_enable_axi_clk(mxsfb);