The correct way for legacy drivers to update properties that need to
do a full modeset, is to do a full modeset.

Note that we don't need to call the drm_mode_config_internal helper
because we're not changing any of the refcounted paramters.

Signed-off-by: Daniel Vetter <daniel.vet...@intel.com>
Cc: Daniel Vetter <daniel.vet...@ffwll.ch>
---
 drivers/gpu/drm/i2c/ch7006_drv.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i2c/ch7006_drv.c b/drivers/gpu/drm/i2c/ch7006_drv.c
index 544a8a2d3562..719c79d3fac9 100644
--- a/drivers/gpu/drm/i2c/ch7006_drv.c
+++ b/drivers/gpu/drm/i2c/ch7006_drv.c
@@ -359,10 +359,10 @@ static int ch7006_encoder_set_property(struct drm_encoder 
*encoder,
        if (modes_changed) {
                drm_helper_probe_single_connector_modes(connector, 0, 0);
 
-               /* Disable the crtc to ensure a full modeset is
-                * performed whenever it's turned on again. */
                if (crtc)
-                       drm_crtc_force_disable(crtc);
+                       return drm_crtc_helper_set_mode(crtc, &crtc->mode,
+                                                       crtc->x, crtc->y,
+                                                       crtc->primary->fb);
        }
 
        return 0;
-- 
2.20.0.rc1

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