From ac3c12e4e5a31b75b2621f8f23336bebbe3dbff4 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Thu, 16 Oct 2014 21:29:56 +0300 Subject: [PATCH] drm/i915: Warn if stealing non pipe A/B power sequencer MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit There's no power sequencer on pipe C on VLV/CHV so scream a bit if we try to steal one from pipes other than A and B. Signed-off-by: Ville Syrjälä Reviewed-by: Imre Deak Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_dp.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 04d7bc730995..7df024c63bff 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -2691,6 +2691,9 @@ static void vlv_steal_power_sequencer(struct drm_device *dev, lockdep_assert_held(&dev_priv->pps_mutex); + if (WARN_ON(pipe != PIPE_A && pipe != PIPE_B)) + return; + list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) { struct intel_dp *intel_dp; -- 2.11.0