[PATCH 06/21] drm/tilcdc: make frame_done interrupt active at all times

[Jyri Sarha]

From: Darren Etheridge <detheri...@ti.com>

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 at ti.com>
Tested-by: Dave Gerlach <d-gerlach at ti.com>
Signed-off-by: Jyri Sarha <jsarha at ti.com>
---
 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