[PATCH] drm/tegra: dc: Reset VBLANK to off

[Thierry Reding]

From: Thierry Reding <treding at nvidia.com>

Upon driver load, reset the VBLANK machinery to off to reflect the
hardware state. Since the ->reset() callback is called from the initial
drm_mode_config_reset() call, move the latter after the VBLANK machinery
initialization by drm_vblank_init().

Signed-off-by: Thierry Reding <treding at nvidia.com>
---
 drivers/gpu/drm/tegra/dc.c  | 2 ++
 drivers/gpu/drm/tegra/drm.c | 4 ++--
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c
index a287e4fec865..8229b3f8213a 100644
--- a/drivers/gpu/drm/tegra/dc.c
+++ b/drivers/gpu/drm/tegra/dc.c
@@ -1015,6 +1015,8 @@ static void tegra_crtc_reset(struct drm_crtc *crtc)
 		crtc->state = &state->base;
 		crtc->state->crtc = crtc;
 	}
+
+	drm_crtc_vblank_reset(crtc);
 }
 
 static struct drm_crtc_state *
diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c
index 427f50c6803c..8967db5713b4 100644
--- a/drivers/gpu/drm/tegra/drm.c
+++ b/drivers/gpu/drm/tegra/drm.c
@@ -171,8 +171,6 @@ static int tegra_drm_load(struct drm_device *drm, unsigned long flags)
 	if (err < 0)
 		goto fbdev;
 
-	drm_mode_config_reset(drm);
-
 	/*
 	 * We don't use the drm_irq_install() helpers provided by the DRM
 	 * core, so we need to set this manually in order to allow the
@@ -187,6 +185,8 @@ static int tegra_drm_load(struct drm_device *drm, unsigned long flags)
 	if (err < 0)
 		goto device;
 
+	drm_mode_config_reset(drm);
+
 	err = tegra_drm_fb_init(drm);
 	if (err < 0)
 		goto vblank;
-- 
2.4.1