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 188c3ce..149befa 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
@@ -384,7 +384,9 @@ 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;
}
@@ -418,7 +420,7 @@ 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
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