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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
This commit is contained in:
Animesh Manna 2015-10-28 23:59:05 +02:00 committed by Jani Nikula
parent 8144ac59bd
commit 15e72c1fc1
2 changed files with 2 additions and 2 deletions
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2
drivers/gpu/drm/i915/i915_drv.c
View File

@ -1067,8 +1067,6 @@ static int i915_pm_resume(struct device *dev)
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)

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

@ -446,5 +446,7 @@ void intel_csr_ucode_fini(struct drm_i915_private *dev_priv)
if (!HAS_CSR(dev_priv))
return;
flush_work(&dev_priv->csr.work);
kfree(dev_priv->csr.dmc_payload);
}