From: Paulo Zanoni <paulo.r.zanoni@xxxxxxxxx> After the modeset rework this really shouldn't be happening, so transform it into a WARN. A stuck pipe is a bad signal and is one of the things that can lead to full machine hangs. Signed-off-by: Paulo Zanoni <paulo.r.zanoni@xxxxxxxxx> --- drivers/gpu/drm/i915/intel_display.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 8fd13ab..5f1399d 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -1737,7 +1737,7 @@ static void intel_enable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe, reg = PIPECONF(cpu_transcoder); val = I915_READ(reg); - if (val & PIPECONF_ENABLE) + if (WARN_ON(val & PIPECONF_ENABLE)) return; I915_WRITE(reg, val | PIPECONF_ENABLE); -- 1.8.3.1 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
