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drm/i915: get/put runtime PM when we get/put a power domain 

Any power domain will require the HW to be in PCI D0 state, so just do
the simple thing.

Dear maintainer: since intel_display_power_put() and
intel_display_power_get() are almost identical, git-am has failed
apply the patch on my local machine once: it added both chunks to
put(), instead of one chunk to get() and another to put(). When you
apply this patch to your tree, please check if it is correct.

v2: - Add the warning above.
v3: - Rebase.

Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Paulo Zanoni 2014-03-07 20:08:06 -03:00 committed by Daniel Vetter
parent a8a8bd547e
commit 9e6ea71a59
1 changed files with 4 additions and 0 deletions
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4
drivers/gpu/drm/i915/intel_pm.c
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@ -5577,6 +5577,8 @@ void intel_display_power_get(struct drm_i915_private *dev_priv,
struct i915_power_well *power_well;
int i;
intel_runtime_pm_get(dev_priv);
power_domains = &dev_priv->power_domains;
mutex_lock(&power_domains->lock);
@ -5621,6 +5623,8 @@ void intel_display_power_put(struct drm_i915_private *dev_priv,
}
mutex_unlock(&power_domains->lock);
intel_runtime_pm_put(dev_priv);
}
static struct i915_power_domains *hsw_pwr;