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drm: omapdrm: Keep vblank interrupt enabled while CRTC is active

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Instead of going through a complicated private IRQ registration
mechanism, handle the vblank interrupt activation with the standard
drm_crtc_vblank_get() and drm_crtc_vblank_put() mechanism. This will let
the DRM core keep the vblank interrupt enabled as long as needed to
update the frame counter.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Laurent Pinchart
2016-04-19 01:43:03 +03:00
parent d173d3dc5e
commit 14389a374b
3 changed files with 39 additions and 49 deletions
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4
drivers/gpu/drm/omapdrm/omap_irq.c
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@@ -245,8 +245,10 @@ static irqreturn_t omap_irq_handler(int irq, void *arg)
struct drm_crtc *crtc = priv->crtcs[id];
enum omap_channel channel = omap_crtc_channel(crtc);
if (irqstatus & pipe2vbl(crtc))
if (irqstatus & pipe2vbl(crtc)) {
drm_handle_vblank(dev, id);
omap_crtc_vblank_irq(crtc);
}
if (irqstatus & dispc_mgr_get_sync_lost_irq(channel))
omap_crtc_error_irq(crtc, irqstatus);