From 71f8ba6b7e44fc525fb15a60997c0c5064c160e6 Mon Sep 17 00:00:00 2001 From: Paulo Zanoni Date: Fri, 3 May 2013 12:15:39 -0300 Subject: [PATCH] drm/i915: check the power well on i915_pipe_enabled This fixes "unclaimed register" messages when the power well is disabled and there's a GPU hang. v2: Use the new intel_display_power_enabled(). v3: Use the new domains for intel_display_power_enabled(). Signed-off-by: Paulo Zanoni Reviewed-by: Damien Lespiau Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_irq.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index 03a31befa8fd..161101f42717 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -384,6 +384,10 @@ i915_pipe_enabled(struct drm_device *dev, int pipe) enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, pipe); + if (!intel_display_power_enabled(dev, + POWER_DOMAIN_TRANSCODER(cpu_transcoder))) + return false; + return I915_READ(PIPECONF(cpu_transcoder)) & PIPECONF_ENABLE; } -- 2.30.2