From: Ville Syrjälä ville.syrjala@linux.intel.com
The new watermaek update mechanism requires interrupts to work correctly. Because of this we need interrupts while disabling crtcs during suspend. So move the irq disable to happen a bit later.
This also avoid clobbering the vblank.last count in case the vblank interrupt was already disabled earlier by the timer. In that case drm_vblank_off() will need .last to be correct so that it can update the user visible vblank counter value approapriately.
v2: Note vblank counter in commit message
Signed-off-by: Ville Syrjälä ville.syrjala@linux.intel.com --- drivers/gpu/drm/i915/i915_drv.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 4619c9e..21554a0 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -524,7 +524,6 @@ static int i915_drm_freeze(struct drm_device *dev) return error; }
- drm_irq_uninstall(dev); dev_priv->enable_hotplug_processing = false;
intel_disable_gt_powersave(dev); @@ -541,6 +540,8 @@ static int i915_drm_freeze(struct drm_device *dev) } mutex_unlock(&dev->mode_config.mutex);
+ drm_irq_uninstall(dev); + intel_modeset_suspend_hw(dev); }