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>
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 521a253..9cc8f87 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -470,6 +470,8 @@
{
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);
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 32c3042..fcdfe42 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -668,6 +668,7 @@
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);
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index b8cf16c..c97714e 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -4043,7 +4043,7 @@
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;