drm/tilcdc: Enable EOF interrupts for v1 LCDC

commit 8d6c3f7 upstream.

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: 2b2080d ("drm/tilcdc: Get rid of complex ping-pong mechanism")
Signed-off-by: Karl Beldan <kbeldan@baylibre.com>
Signed-off-by: Jyri Sarha <jsarha@ti.com>

Author: Karl Beldan

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 |