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[v3,5/7] drm/tilcdc: Call drm_crtc_vblank_on() and *_off() in start() and stop()

Message ID 6b115318736d4baff0abab995b4cc2660905dc7a.1466084192.git.jsarha@ti.com (mailing list archive)
State New, archived
Headers show

Commit Message

Jyri Sarha June 16, 2016, 1:41 p.m. UTC 
Add drm_crtc_vblank_on() and *_off() calls to start() and stop()
functions, to make sure any vblank waits etc. gets properly cleaned
up.

Signed-off-by: Jyri Sarha <jsarha@ti.com>
---
 drivers/gpu/drm/tilcdc/tilcdc_crtc.c | 4 ++++
 1 file changed, 4 insertions(+)
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Patch

diff --git a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
index 48f890d..b1ba719 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
@@ -109,6 +109,8 @@  static void start(struct drm_crtc *crtc)
 	tilcdc_clear(dev, LCDC_DMA_CTRL_REG, LCDC_DUAL_FRAME_BUFFER_ENABLE);
 	tilcdc_set(dev, LCDC_RASTER_CTRL_REG, LCDC_PALETTE_LOAD_MODE(DATA_ONLY));
 	tilcdc_set(dev, LCDC_RASTER_CTRL_REG, LCDC_RASTER_ENABLE);
+
+	drm_crtc_vblank_on(crtc);
 }
 
 static void stop(struct drm_crtc *crtc)
@@ -132,6 +134,8 @@  static void stop(struct drm_crtc *crtc)
 			dev_err(dev->dev, "%s: timeout waiting for framedone\n",
 				__func__);
 	}
+
+	drm_crtc_vblank_off(crtc);
 }
 
 static void tilcdc_crtc_destroy(struct drm_crtc *crtc)