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authorJyri Sarha <jsarha@ti.com>2015-12-18 13:07:52 +0200
committerJyri Sarha <jsarha@ti.com>2016-02-25 16:39:44 +0200
commitc0c2baaab1b553df92a24e9175440f15e6ad3e2c (patch)
tree28c51e2cf13cc8109c999c7eccbffa2ce2fe7769 /drivers/gpu/drm/tilcdc
parentf3a99946a95b3482eabec63b9f662963d7d2e3c8 (diff)
downloadblackbird-op-linux-c0c2baaab1b553df92a24e9175440f15e6ad3e2c.tar.gz
blackbird-op-linux-c0c2baaab1b553df92a24e9175440f15e6ad3e2c.zip
drm/tilcdc: Add prints on sync lost and FIFO underrun interrupts
Add ratelimited prints on sync lost and FIFO underrun interrupts. Signed-off-by: Jyri Sarha <jsarha@ti.com> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Diffstat (limited to 'drivers/gpu/drm/tilcdc')
-rw-r--r--drivers/gpu/drm/tilcdc/tilcdc_crtc.c8
-rw-r--r--drivers/gpu/drm/tilcdc/tilcdc_drv.c4
2 files changed, 10 insertions, 2 deletions
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
index b1df04625f50..5ee22c6b37e8 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
@@ -717,6 +717,14 @@ irqreturn_t tilcdc_crtc_irq(struct drm_crtc *crtc)
tilcdc_write(dev, LCDC_END_OF_INT_IND_REG, 0);
}
+ if (stat & LCDC_SYNC_LOST)
+ dev_err_ratelimited(dev->dev, "%s(0x%08x): Sync lost",
+ __func__, stat);
+
+ if (stat & LCDC_FIFO_UNDERFLOW)
+ dev_err_ratelimited(dev->dev, "%s(0x%08x): FIFO underfow",
+ __func__, stat);
+
return IRQ_HANDLED;
}
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
index d96083d62e11..41ec890c4bca 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
@@ -382,7 +382,7 @@ static int tilcdc_irq_postinstall(struct drm_device *dev)
tilcdc_write(dev, LCDC_INT_ENABLE_SET_REG,
LCDC_V2_UNDERFLOW_INT_ENA |
LCDC_V2_END_OF_FRAME0_INT_ENA |
- LCDC_FRAME_DONE);
+ LCDC_FRAME_DONE | LCDC_SYNC_LOST);
}
return 0;
@@ -401,7 +401,7 @@ static void tilcdc_irq_uninstall(struct drm_device *dev)
tilcdc_write(dev, LCDC_INT_ENABLE_CLR_REG,
LCDC_V2_UNDERFLOW_INT_ENA | LCDC_V2_PL_INT_ENA |
LCDC_V2_END_OF_FRAME0_INT_ENA |
- LCDC_FRAME_DONE);
+ LCDC_FRAME_DONE | LCDC_SYNC_LOST);
}
}
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