diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2013-09-16 17:38:28 +0300 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-09-20 23:48:44 +0200 |
| commit | 6765625e0b677a86dbd533f045ab4e52e2761d79 (patch) | |
| tree | ff2f8293b4274e8966e97b2d8eccb5cdfeb59f1e /drivers/gpu/drm/i915/intel_pm.c | |
| parent | 9cdb826c1452eeef1dfb5ebe64c27e7fa8616c49 (diff) | |
drm/i915: Add intel_display_power_{get, put} to request power for specific domains
Add APIs to get/put power well references for specific purposes.
v2: Split the i915_request change to another patch
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_pm.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 609c936d1df..a0e198c8e14 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -5345,6 +5345,69 @@ static void __intel_set_power_well(struct drm_device *dev, bool enable) } } +void intel_display_power_get(struct drm_device *dev, + enum intel_display_power_domain domain) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + struct i915_power_well *power_well = &dev_priv->power_well; + + if (!HAS_POWER_WELL(dev)) + return; + + switch (domain) { + case POWER_DOMAIN_PIPE_A: + case POWER_DOMAIN_TRANSCODER_EDP: + return; + case POWER_DOMAIN_PIPE_B: + case POWER_DOMAIN_PIPE_C: + case POWER_DOMAIN_PIPE_A_PANEL_FITTER: + case POWER_DOMAIN_PIPE_B_PANEL_FITTER: + case POWER_DOMAIN_PIPE_C_PANEL_FITTER: + case POWER_DOMAIN_TRANSCODER_A: + case POWER_DOMAIN_TRANSCODER_B: + case POWER_DOMAIN_TRANSCODER_C: + spin_lock_irq(&power_well->lock); + if (!power_well->count++) + __intel_set_power_well(power_well->device, true); + spin_unlock_irq(&power_well->lock); + return; + default: + BUG(); + } +} + +void intel_display_power_put(struct drm_device *dev, + enum intel_display_power_domain domain) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + struct i915_power_well *power_well = &dev_priv->power_well; + + if (!HAS_POWER_WELL(dev)) + return; + + switch (domain) { + case POWER_DOMAIN_PIPE_A: + case POWER_DOMAIN_TRANSCODER_EDP: + return; + case POWER_DOMAIN_PIPE_B: + case POWER_DOMAIN_PIPE_C: + case POWER_DOMAIN_PIPE_A_PANEL_FITTER: + case POWER_DOMAIN_PIPE_B_PANEL_FITTER: + case POWER_DOMAIN_PIPE_C_PANEL_FITTER: + case POWER_DOMAIN_TRANSCODER_A: + case POWER_DOMAIN_TRANSCODER_B: + case POWER_DOMAIN_TRANSCODER_C: + spin_lock_irq(&power_well->lock); + WARN_ON(!power_well->count); + if (!--power_well->count) + __intel_set_power_well(power_well->device, false); + spin_unlock_irq(&power_well->lock); + return; + default: + BUG(); + } +} + static struct i915_power_well *hsw_pwr; /* Display audio driver power well request */ |