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drm/i915: get runtime PM at i915_display_info
author
Paulo Zanoni
<paulo.r.zanoni@intel.com>
Tue, 1 Apr 2014 17:55:10 +0000
(14:55 -0300)
committer
Daniel Vetter
<daniel.vetter@ffwll.ch>
Tue, 1 Apr 2014 20:53:43 +0000
(22:53 +0200)
Otherwise we may get some WARNs complaining that we're reading a
register while we're suspended.
Testcase: igt/pm_pc8/debugfs-read
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/i915/i915_debugfs.c
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diff --git
a/drivers/gpu/drm/i915/i915_debugfs.c
b/drivers/gpu/drm/i915/i915_debugfs.c
index
7522f97
..
23a6516
100644
(file)
--- a/
drivers/gpu/drm/i915/i915_debugfs.c
+++ b/
drivers/gpu/drm/i915/i915_debugfs.c
@@
-2319,9
+2319,11
@@
static int i915_display_info(struct seq_file *m, void *unused)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_crtc *crtc;
struct drm_connector *connector;
+ intel_runtime_pm_get(dev_priv);
drm_modeset_lock_all(dev);
seq_printf(m, "CRTC info\n");
seq_printf(m, "---------\n");
@@
-2349,6
+2351,7
@@
static int i915_display_info(struct seq_file *m, void *unused)
intel_connector_info(m, connector);
}
drm_modeset_unlock_all(dev);
+ intel_runtime_pm_put(dev_priv);
return 0;
}