Instead of going through a complicated registration mechanism, just call the OCP error IRQ handler directly from the main IRQ handler.
Signed-off-by: Laurent Pinchart laurent.pinchart@ideasonboard.com --- Changes since v1:
- Rename IRQ handler to omap_irq_ocp_error_handler() - Replace hex error value with "OCP error" message --- drivers/gpu/drm/omapdrm/omap_drv.h | 1 - drivers/gpu/drm/omapdrm/omap_irq.c | 28 ++++++++++------------------ 2 files changed, 10 insertions(+), 19 deletions(-)
diff --git a/drivers/gpu/drm/omapdrm/omap_drv.h b/drivers/gpu/drm/omapdrm/omap_drv.h index ffc958eea5a3..4bbfe0869a48 100644 --- a/drivers/gpu/drm/omapdrm/omap_drv.h +++ b/drivers/gpu/drm/omapdrm/omap_drv.h @@ -104,7 +104,6 @@ struct omap_drm_private { /* irq handling: */ struct list_head irq_list; /* list of omap_drm_irq */ uint32_t irq_mask; /* enabled irqs in addition to irq_list */ - struct omap_drm_irq error_handler;
/* atomic commit */ struct { diff --git a/drivers/gpu/drm/omapdrm/omap_irq.c b/drivers/gpu/drm/omapdrm/omap_irq.c index c21ed4afd1ac..d0730178888f 100644 --- a/drivers/gpu/drm/omapdrm/omap_irq.c +++ b/drivers/gpu/drm/omapdrm/omap_irq.c @@ -21,12 +21,6 @@
static DEFINE_SPINLOCK(list_lock);
-static void omap_irq_error_handler(struct omap_drm_irq *irq, - uint32_t irqstatus) -{ - DRM_ERROR("errors: %08x\n", irqstatus); -} - /* call with list_lock and dispc runtime held */ static void omap_irq_update(struct drm_device *dev) { @@ -224,6 +218,14 @@ static void omap_irq_fifo_underflow(struct omap_drm_private *priv, pr_cont("(0x%08x)\n", irqstatus); }
+static void omap_irq_ocp_error_handler(u32 irqstatus) +{ + if (!(irqstatus & DISPC_IRQ_OCP_ERR)) + return; + + DRM_ERROR("OCP error\n"); +} + static irqreturn_t omap_irq_handler(int irq, void *arg) { struct drm_device *dev = (struct drm_device *) arg; @@ -250,6 +252,7 @@ static irqreturn_t omap_irq_handler(int irq, void *arg) omap_crtc_error_irq(crtc, irqstatus); }
+ omap_irq_ocp_error_handler(irqstatus); omap_irq_fifo_underflow(priv, irqstatus);
spin_lock_irqsave(&list_lock, flags); @@ -282,7 +285,6 @@ static const u32 error_irqs[] = { int omap_drm_irq_install(struct drm_device *dev) { struct omap_drm_private *priv = dev->dev_private; - struct omap_drm_irq *error_handler = &priv->error_handler; unsigned int num_mgrs = dss_feat_get_num_mgrs(); unsigned int max_planes; unsigned int i; @@ -290,7 +292,7 @@ int omap_drm_irq_install(struct drm_device *dev)
INIT_LIST_HEAD(&priv->irq_list);
- priv->irq_mask = 0; + priv->irq_mask = DISPC_IRQ_OCP_ERR;
max_planes = min(ARRAY_SIZE(priv->planes), ARRAY_SIZE(error_irqs)); for (i = 0; i < max_planes; ++i) { @@ -309,16 +311,6 @@ int omap_drm_irq_install(struct drm_device *dev) if (ret < 0) return ret;
- error_handler->irq = omap_irq_error_handler; - error_handler->irqmask = DISPC_IRQ_OCP_ERR; - - /* for now ignore DISPC_IRQ_SYNC_LOST_DIGIT.. really I think - * we just need to ignore it while enabling tv-out - */ - error_handler->irqmask &= ~DISPC_IRQ_SYNC_LOST_DIGIT; - - omap_irq_register(dev, error_handler); - dev->irq_enabled = true;
return 0;