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| author | Imre Deak <imre.deak@intel.com> | 2014-04-14 21:24:27 +0400 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2014-05-05 11:08:55 +0400 |
| commit | d46c05175e0da37ad2795c775161f15302ce6c89 (patch) | |
| tree | c356d78429bc67dbad023894027f2f57a2968e53 /drivers/gpu/drm/i915/i915_sysfs.c | |
| parent | 3b2c1bfe20da09301965f0acb82d3012a568dc83 (diff) | |
| download | linux-d46c05175e0da37ad2795c775161f15302ce6c89.tar.xz | |
drm/i915: get a runtime PM ref for debugfs entries where needed
These debugfs entries access registers that need the D0 power state so
get an RPM ref for them.
v2:
- for all these entries we only need D0 state, so get only an RPM ref,
not a power domain ref (Daniel, Paulo)
- the dpio entry is not an issue any more as it got removed (Ville)
- restore commit message from v1 (Paulo)
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_sysfs.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_sysfs.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_sysfs.c b/drivers/gpu/drm/i915/i915_sysfs.c index 9c57029f6f4b..3620997e43f5 100644 --- a/drivers/gpu/drm/i915/i915_sysfs.c +++ b/drivers/gpu/drm/i915/i915_sysfs.c @@ -263,6 +263,8 @@ static ssize_t gt_cur_freq_mhz_show(struct device *kdev, flush_delayed_work(&dev_priv->rps.delayed_resume_work); + intel_runtime_pm_get(dev_priv); + mutex_lock(&dev_priv->rps.hw_lock); if (IS_VALLEYVIEW(dev_priv->dev)) { u32 freq; @@ -273,6 +275,8 @@ static ssize_t gt_cur_freq_mhz_show(struct device *kdev, } mutex_unlock(&dev_priv->rps.hw_lock); + intel_runtime_pm_put(dev_priv); + return snprintf(buf, PAGE_SIZE, "%d\n", ret); } |