[PATCH 09/23] drm: omapdrm: Handle OCP error IRQ directly
Laurent Pinchart
laurent.pinchart at ideasonboard.com
Tue Apr 26 20:35:31 UTC 2016
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 at ideasonboard.com>
---
drivers/gpu/drm/omapdrm/omap_drv.h | 1 -
drivers/gpu/drm/omapdrm/omap_irq.c | 29 +++++++++++------------------
2 files changed, 11 insertions(+), 19 deletions(-)
diff --git a/drivers/gpu/drm/omapdrm/omap_drv.h b/drivers/gpu/drm/omapdrm/omap_drv.h
index 2d8fbdb2d39f..17dd3b98fc1a 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 a90e093f5f42..499da6e2c5a4 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)
{
@@ -219,6 +213,14 @@ static void omap_irq_fifo_underflow(uint32_t irqstatus)
pr_cont("(0x%08x)\n", irqstatus);
}
+static void omap_irq_error_handler(uint32_t irqstatus)
+{
+ if (!(irqstatus & DISPC_IRQ_OCP_ERR))
+ return;
+
+ DRM_ERROR("errors: %08x\n", irqstatus);
+}
+
static irqreturn_t omap_irq_handler(int irq, void *arg)
{
struct drm_device *dev = (struct drm_device *) arg;
@@ -245,6 +247,7 @@ static irqreturn_t omap_irq_handler(int irq, void *arg)
omap_crtc_error_irq(crtc, irqstatus);
}
+ omap_irq_error_handler(irqstatus);
omap_irq_fifo_underflow(irqstatus);
spin_lock_irqsave(&list_lock, flags);
@@ -270,14 +273,14 @@ static irqreturn_t omap_irq_handler(int irq, void *arg)
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 i;
int ret;
INIT_LIST_HEAD(&priv->irq_list);
- priv->irq_mask = DISPC_IRQ_GFX_FIFO_UNDERFLOW
+ priv->irq_mask = DISPC_IRQ_OCP_ERR
+ | DISPC_IRQ_GFX_FIFO_UNDERFLOW
| DISPC_IRQ_VID1_FIFO_UNDERFLOW
| DISPC_IRQ_VID2_FIFO_UNDERFLOW
| DISPC_IRQ_VID3_FIFO_UNDERFLOW;
@@ -293,16 +296,6 @@ 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;
--
2.7.3
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