diff options
| -rw-r--r-- | drivers/gpu/drm/tilcdc/tilcdc_crtc.c | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c index 08b1e03..e62a950 100644 --- a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c +++ b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c @@ -112,17 +112,24 @@ static void update_scanout(struct drm_crtc *crtc) } } -static void start(struct drm_crtc *crtc) +static void reset(struct drm_crtc *crtc) { struct drm_device *dev = crtc->dev; struct tilcdc_drm_private *priv = dev->dev_private; - if (priv->rev == 2) { - tilcdc_set(dev, LCDC_CLK_RESET_REG, LCDC_CLK_MAIN_RESET); - msleep(1); - tilcdc_clear(dev, LCDC_CLK_RESET_REG, LCDC_CLK_MAIN_RESET); - msleep(1); - } + if (priv->rev != 2) + return; + + tilcdc_set(dev, LCDC_CLK_RESET_REG, LCDC_CLK_MAIN_RESET); + usleep_range(250, 1000); + tilcdc_clear(dev, LCDC_CLK_RESET_REG, LCDC_CLK_MAIN_RESET); +} + +static void start(struct drm_crtc *crtc) +{ + struct drm_device *dev = crtc->dev; + + reset(crtc); tilcdc_set(dev, LCDC_DMA_CTRL_REG, LCDC_DUAL_FRAME_BUFFER_ENABLE); tilcdc_set(dev, LCDC_RASTER_CTRL_REG, LCDC_PALETTE_LOAD_MODE(DATA_ONLY)); |