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Commit c0c2baaa authored by Jyri Sarha's avatar Jyri Sarha
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drm/tilcdc: Add prints on sync lost and FIFO underrun interrupts 



Add ratelimited prints on sync lost and FIFO underrun interrupts.

Signed-off-by: default avatarJyri Sarha <jsarha@ti.com>
Reviewed-by: default avatarTomi Valkeinen <tomi.valkeinen@ti.com>
parent f3a99946

drivers/gpu/drm/tilcdc/tilcdc_crtc.c

+8 −0
Original line number Diff line number Diff line
@@ -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;

}

drivers/gpu/drm/tilcdc/tilcdc_drv.c

+2 −2
Original line number Diff line number Diff line
@@ -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);

	}

}