From: Darren Etheridge <detheridge@xxxxxx> The frame_done interrupt was only being enabled when the vsync interrupts were being enabled by DRM. However the frame_done is used to determine if the LCD controller has successfully completed the raster_enable, raster_disable commands and the vsync interrupts are not always enabled during these operations. Signed-off-by: Darren Etheridge <detheridge@xxxxxx> Tested-by: Dave Gerlach <d-gerlach@xxxxxx> Signed-off-by: Jyri Sarha <jsarha@xxxxxx> --- drivers/gpu/drm/tilcdc/tilcdc_drv.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c index 67ed9f7..7c39362 100644 --- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c +++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c @@ -369,7 +369,9 @@ static int tilcdc_irq_postinstall(struct drm_device *dev) if (priv->rev == 1) tilcdc_set(dev, LCDC_RASTER_CTRL_REG, LCDC_V1_UNDERFLOW_INT_ENA); else - tilcdc_set(dev, LCDC_INT_ENABLE_SET_REG, LCDC_V2_UNDERFLOW_INT_ENA); + tilcdc_set(dev, LCDC_INT_ENABLE_SET_REG, + LCDC_V2_UNDERFLOW_INT_ENA | + LCDC_FRAME_DONE); return 0; } @@ -403,7 +405,7 @@ static void enable_vblank(struct drm_device *dev, bool enable) } else { reg = LCDC_INT_ENABLE_SET_REG; mask = LCDC_V2_END_OF_FRAME0_INT_ENA | - LCDC_V2_END_OF_FRAME1_INT_ENA | LCDC_FRAME_DONE; + LCDC_V2_END_OF_FRAME1_INT_ENA; } if (enable) -- 1.9.1 _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel