drm/i915: Remove modeset lock check from intel_pipe_update_start()

A follow up patch will call this funcion from a work context for the
mmio flip, in which case we cannot acquire the modeset locks. That's
not a problem though, since the check is there to protect vblank and
the mode, but the code that changes that waits for pending flips
first.

Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
index c692ade..0068fef 100644 (file)
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -86,8 +86,6 @@ static bool intel_pipe_update_start(struct intel_crtc *crtc, uint32_t *start_vbl
        wait_queue_head_t *wq = drm_crtc_vblank_waitqueue(&crtc->base);
        DEFINE_WAIT(wait);
 
-       WARN_ON(!drm_modeset_is_locked(&crtc->base.mutex));
-
        vblank_start = mode->crtc_vblank_start;
        if (mode->flags & DRM_MODE_FLAG_INTERLACE)
                vblank_start = DIV_ROUND_UP(vblank_start, 2);