This got accidentally dropped in the fixed commit and is required for
the driver to properly work on the rev1 IP, such as found on the LCDK.
Fixes: 2b2080d7e9ae ("drm/tilcdc: Get rid of complex ping-pong mechanism")
Signed-off-by: Karl Beldan <kbeldan@xxxxxxxxxxxx>
---
drivers/gpu/drm/tilcdc/tilcdc_crtc.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
index 89d6916..163f111 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
@@ -98,6 +98,8 @@ static void tilcdc_crtc_enable_irqs(struct drm_device *dev)
if (priv->rev == 1) {
tilcdc_set(dev, LCDC_RASTER_CTRL_REG,
LCDC_V1_UNDERFLOW_INT_ENA);
+ tilcdc_set(dev, LCDC_DMA_CTRL_REG,
+ LCDC_V1_END_OF_FRAME_INT_ENA);
} else {
tilcdc_write(dev, LCDC_INT_ENABLE_SET_REG,
LCDC_V2_UNDERFLOW_INT_ENA |
--
2.9.2
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