@@ -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;
}
@@ -389,7 +389,7 @@ 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;
@@ -408,7 +408,7 @@ 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);
}
}
Add ratelimited prints on sync lost and FIFO underrun interrupts. Signed-off-by: Jyri Sarha <jsarha@ti.com> --- drivers/gpu/drm/tilcdc/tilcdc_crtc.c | 8 ++++++++ drivers/gpu/drm/tilcdc/tilcdc_drv.c | 4 ++-- 2 files changed, 10 insertions(+), 2 deletions(-)