drm/i915/gen9: Use flush_work to synchronize with dmc loader
During driver unload to ensure we dont have any pending task,
flush_work added to complete firmware loading task.
v1: Initial version.
v2: As per review comments from Daniel,
Removed flush_work from skl_set_power_well. As we have taken
power well refernece and rpm count during firmware loading
by using display_power_domain_get/put - this will always
ensure rpm will be blocked if firmware is not loaded.
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Damien Lespiau <damien.lespiau@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Sunil Kamath <sunil.kamath@intel.com>
Signed-off-by: Animesh Manna <animesh.manna@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Tested-by: Daniel Stone <daniels@collabora.com> # SKL
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1446069547-24760-12-git-send-email-imre.deak@intel.com
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index d678b15..37319b0 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -1067,8 +1067,6 @@
static int skl_suspend_complete(struct drm_i915_private *dev_priv)
{
- /* Enabling DC6 is not a hard requirement to enter runtime D3 */
-
skl_uninit_cdclk(dev_priv);
if (dev_priv->csr.dmc_payload)
diff --git a/drivers/gpu/drm/i915/intel_csr.c b/drivers/gpu/drm/i915/intel_csr.c
index 5079072..2d6527e 100644
--- a/drivers/gpu/drm/i915/intel_csr.c
+++ b/drivers/gpu/drm/i915/intel_csr.c
@@ -446,5 +446,7 @@
if (!HAS_CSR(dev_priv))
return;
+ flush_work(&dev_priv->csr.work);
+
kfree(dev_priv->csr.dmc_payload);
}