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drm/omap: add framedone interrupt support

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This prepares framedone interrupt handling for
manual display update support.

Acked-by: Pavel Machek <pavel@ucw.cz>
Tested-by: Tony Lindgren <tony@atomide.com>
Tested-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Sebastian Reichel
2019-05-23 22:07:55 +02:00
committed by Tomi Valkeinen
parent ad9df7d91b
commit 47103a80f5
4 changed files with 75 additions and 0 deletions
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25
drivers/gpu/drm/omapdrm/omap_irq.c
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@@ -85,6 +85,28 @@ int omap_irq_wait(struct drm_device *dev, struct omap_irq_wait *wait,
return ret == 0 ? -1 : 0;
}
int omap_irq_enable_framedone(struct drm_crtc *crtc, bool enable)
{
struct drm_device *dev = crtc->dev;
struct omap_drm_private *priv = dev->dev_private;
unsigned long flags;
enum omap_channel channel = omap_crtc_channel(crtc);
int framedone_irq =
priv->dispc_ops->mgr_get_framedone_irq(priv->dispc, channel);
DBG("dev=%p, crtc=%u, enable=%d", dev, channel, enable);
spin_lock_irqsave(&priv->wait_lock, flags);
if (enable)
priv->irq_mask |= framedone_irq;
else
priv->irq_mask &= ~framedone_irq;
omap_irq_update(dev);
spin_unlock_irqrestore(&priv->wait_lock, flags);
return 0;
}
/**
* enable_vblank - enable vblank interrupt events
* @dev: DRM device
@@ -217,6 +239,9 @@ static irqreturn_t omap_irq_handler(int irq, void *arg)
if (irqstatus & priv->dispc_ops->mgr_get_sync_lost_irq(priv->dispc, channel))
omap_crtc_error_irq(crtc, irqstatus);
if (irqstatus & priv->dispc_ops->mgr_get_framedone_irq(priv->dispc, channel))
omap_crtc_framedone_irq(crtc, irqstatus);
}
omap_irq_ocp_error_handler(dev, irqstatus);