From: Paulo Zanoni Date: Thu, 18 Apr 2013 19:35:40 +0000 (-0300) Subject: drm/i915: check the power well inside haswell_get_pipe_config X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=2bfce95075fa58eaf2ead5b0863c50a3f6098bc2;p=linux-beck.git drm/i915: check the power well inside haswell_get_pipe_config This fixes "unclaimed register" messages when booting with eDP only and i915.disable_power_well=1. The error messages were caused by: commit 0e8ffe1bf81b0780cc6229cb38664754dffe8776 Author: Daniel Vetter Date: Thu Mar 28 10:42:00 2013 +0100 drm/i915: add hw state readout/checking for pipe_config Signed-off-by: Paulo Zanoni Reviewed-by: Damien Lespiau Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 8a96c998ee53..6f7e4cc35d99 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -5978,9 +5978,14 @@ static bool haswell_get_pipe_config(struct intel_crtc *crtc, { struct drm_device *dev = crtc->base.dev; struct drm_i915_private *dev_priv = dev->dev_private; + enum transcoder cpu_transcoder = crtc->config.cpu_transcoder; uint32_t tmp; - tmp = I915_READ(PIPECONF(crtc->config.cpu_transcoder)); + if (!intel_using_power_well(dev_priv->dev) && + cpu_transcoder != TRANSCODER_EDP) + return false; + + tmp = I915_READ(PIPECONF(cpu_transcoder)); if (!(tmp & PIPECONF_ENABLE)) return false;