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drm/i915: turn on the power well before suspending 

Our suspend code touches a lot of registers all over the place, so we
need to enable the power well before suspending.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
[danvet: Fixup compilation by stealing the header decl from the
dynamic power wells patch.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Paulo Zanoni 2013-01-25 16:59:15 -02:00 committed by Daniel Vetter
parent cc464b2a17
commit cb10799c19
3 changed files with 4 additions and 1 deletions
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2
drivers/gpu/drm/i915/i915_drv.c
View File

@ -470,6 +470,8 @@ static int i915_drm_freeze(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
intel_set_power_well(dev, true);
drm_kms_helper_poll_disable(dev);
pci_save_state(dev->pdev);

1
drivers/gpu/drm/i915/intel_drv.h
View File

@ -668,6 +668,7 @@ extern void intel_gpu_ips_init(struct drm_i915_private *dev_priv);
extern void intel_gpu_ips_teardown(void);
extern void intel_init_power_well(struct drm_device *dev);
extern void intel_set_power_well(struct drm_device *dev, bool enable);
extern void intel_enable_gt_powersave(struct drm_device *dev);
extern void intel_disable_gt_powersave(struct drm_device *dev);
extern void gen6_gt_check_fifodbg(struct drm_i915_private *dev_priv);

2
drivers/gpu/drm/i915/intel_pm.c
View File

@ -4043,7 +4043,7 @@ void intel_init_clock_gating(struct drm_device *dev)
dev_priv->display.init_clock_gating(dev);
}
static void intel_set_power_well(struct drm_device *dev, bool enable)
void intel_set_power_well(struct drm_device *dev, bool enable)
{
struct drm_i915_private *dev_priv = dev->dev_private;
bool is_enabled, enable_requested;