提交 6b72d486 编写于 作者: M Maarten Lankhorst 提交者: Jani Nikula

drm/i915: add intel_display_suspend, v2

This is a function used to disable all crtc's. This makes it clearer
to distinguish between when mode needs to be preserved and when
it can be trashed.

Changes since v1:
- Copy power changes from intel_crtc_control.
Signed-off-by: NMaarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: NMatt Roper <matthew.d.roper@intel.com>
Signed-off-by: NJani Nikula <jani.nikula@intel.com>
上级 69024de8
......@@ -601,7 +601,6 @@ static int bxt_resume_prepare(struct drm_i915_private *dev_priv);
static int i915_drm_suspend(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
struct drm_crtc *crtc;
pci_power_t opregion_target_state;
int error;
......@@ -632,8 +631,7 @@ static int i915_drm_suspend(struct drm_device *dev)
* for _thaw. Also, power gate the CRTC power wells.
*/
drm_modeset_lock_all(dev);
for_each_crtc(dev, crtc)
intel_crtc_control(crtc, false);
intel_display_suspend(dev);
drm_modeset_unlock_all(dev);
intel_dp_mst_suspend(dev);
......
......@@ -3190,9 +3190,6 @@ void intel_crtc_reset(struct intel_crtc *crtc)
void intel_prepare_reset(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = to_i915(dev);
struct intel_crtc *crtc;
/* no reset support for gen2 */
if (IS_GEN2(dev))
return;
......@@ -3207,13 +3204,7 @@ void intel_prepare_reset(struct drm_device *dev)
* Disabling the crtcs gracefully seems nicer. Also the
* g33 docs say we should at least disable all the planes.
*/
for_each_intel_crtc(dev, crtc) {
if (!crtc->active)
continue;
intel_crtc_disable_planes(&crtc->base);
dev_priv->display.crtc_disable(&crtc->base);
}
intel_display_suspend(dev);
}
void intel_finish_reset(struct drm_device *dev)
......@@ -6278,6 +6269,33 @@ static void i9xx_crtc_disable(struct drm_crtc *crtc)
mutex_unlock(&dev->struct_mutex);
}
/*
* turn all crtc's off, but do not adjust state
* This has to be paired with a call to intel_modeset_setup_hw_state.
*/
void intel_display_suspend(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = to_i915(dev);
struct drm_crtc *crtc;
for_each_crtc(dev, crtc) {
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
enum intel_display_power_domain domain;
unsigned long domains;
if (!intel_crtc->active)
continue;
intel_crtc_disable_planes(crtc);
dev_priv->display.crtc_disable(crtc);
domains = intel_crtc->enabled_power_domains;
for_each_power_domain(domain, domains)
intel_display_power_put(dev_priv, domain);
intel_crtc->enabled_power_domains = 0;
}
}
/* Master function to enable/disable CRTC and corresponding power wells */
void intel_crtc_control(struct drm_crtc *crtc, bool enable)
{
......
......@@ -993,6 +993,7 @@ int intel_pch_rawclk(struct drm_device *dev);
void intel_mark_busy(struct drm_device *dev);
void intel_mark_idle(struct drm_device *dev);
void intel_crtc_restore_mode(struct drm_crtc *crtc);
void intel_display_suspend(struct drm_device *dev);
void intel_crtc_control(struct drm_crtc *crtc, bool enable);
void intel_crtc_reset(struct intel_crtc *crtc);
void intel_crtc_update_dpms(struct drm_crtc *crtc);
......
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