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drm/hdlcd: Fix up crtc_state->event handling

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event_list just reimplemented what drm_crtc_arm_vblank_event does. And
we also need to send out drm events when shutting down a pipe.

With this it's possible to use the new nonblocking commit support in
the helpers.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Acked-by: Liviu Dudau <Liviu.Dudau@arm.com>
This commit is contained in:
Daniel Vetter 2016-05-31 18:21:13 +02:00 committed by Liviu Dudau
parent a95acec16d
commit 38c8c22c12
3 changed files with 9 additions and 29 deletions
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18
drivers/gpu/drm/arm/hdlcd_crtc.c
View File

@ -189,19 +189,17 @@ static void hdlcd_crtc_atomic_begin(struct drm_crtc *crtc,
struct drm_crtc_state *state)
{
struct hdlcd_drm_private *hdlcd = crtc_to_hdlcd_priv(crtc);
unsigned long flags;
if (crtc->state->event) {
struct drm_pending_vblank_event *event = crtc->state->event;
struct drm_pending_vblank_event *event = crtc->state->event;
if (event) {
crtc->state->event = NULL;
event->pipe = drm_crtc_index(crtc);
WARN_ON(drm_crtc_vblank_get(crtc) != 0);
spin_lock_irqsave(&crtc->dev->event_lock, flags);
list_add_tail(&event->base.link, &hdlcd->event_list);
spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
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);
}
}

19
drivers/gpu/drm/arm/hdlcd_drv.c
View File

@ -49,8 +49,6 @@ static int hdlcd_load(struct drm_device *drm, unsigned long flags)
atomic_set(&hdlcd->dma_end_count, 0);
#endif
INIT_LIST_HEAD(&hdlcd->event_list);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
hdlcd->mmio = devm_ioremap_resource(drm->dev, res);
if (IS_ERR(hdlcd->mmio)) {
@ -160,24 +158,9 @@ static irqreturn_t hdlcd_irq(int irq, void *arg)
atomic_inc(&hdlcd->vsync_count);
#endif
if (irq_status & HDLCD_INTERRUPT_VSYNC) {
bool events_sent = false;
unsigned long flags;
struct drm_pending_vblank_event *e, *t;
if (irq_status & HDLCD_INTERRUPT_VSYNC)
drm_crtc_handle_vblank(&hdlcd->crtc);
spin_lock_irqsave(&drm->event_lock, flags);
list_for_each_entry_safe(e, t, &hdlcd->event_list, base.link) {
list_del(&e->base.link);
drm_crtc_send_vblank_event(&hdlcd->crtc, e);
events_sent = true;
}
if (events_sent)
drm_crtc_vblank_put(&hdlcd->crtc);
spin_unlock_irqrestore(&drm->event_lock, flags);
}
/* acknowledge interrupt(s) */
hdlcd_write(hdlcd, HDLCD_REG_INT_CLEAR, irq_status);

1
drivers/gpu/drm/arm/hdlcd_drv.h
View File

@ -10,7 +10,6 @@ struct hdlcd_drm_private {
struct clk *clk;
struct drm_fbdev_cma *fbdev;
struct drm_framebuffer *fb;
struct list_head event_list;
struct drm_crtc crtc;
struct drm_plane *plane;
struct drm_atomic_state *state;