diff options
| author | Imre Deak <imre.deak@intel.com> | 2017-10-03 12:51:58 +0300 |
|---|---|---|
| committer | Imre Deak <imre.deak@intel.com> | 2017-10-04 11:37:57 +0300 |
| commit | 57522c4c87de20d8f7ad4e142a3a4334066d55ff (patch) | |
| tree | 51684d40a37f6ae0241f1ca395026f19224bcd18 | |
| parent | 213f1bd035edc36f8d68c028d1b79675cd167d1d (diff) | |
| download | talos-obmc-linux-57522c4c87de20d8f7ad4e142a3a4334066d55ff.tar.gz talos-obmc-linux-57522c4c87de20d8f7ad4e142a3a4334066d55ff.zip | |
drm/i915/cnl: Reprogram DMC firmware after S3/S4 resume
The DMC firmware program memory is lost after S3/S4 system suspend, so
we need to reprogram it during resume.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=103070
Fixes: cebfcead63de ("drm/i915/DMC/CNL: Load DMC on CNL")
Cc: Anusha Srivatsa <anusha.srivatsa@intel.com>
Cc: Animesh Manna <animesh.manna@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171003095159.711-1-imre.deak@intel.com
| -rw-r--r-- | drivers/gpu/drm/i915/intel_runtime_pm.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c index 7933d1bc6a1c..3791c3f5f56d 100644 --- a/drivers/gpu/drm/i915/intel_runtime_pm.c +++ b/drivers/gpu/drm/i915/intel_runtime_pm.c @@ -2809,6 +2809,9 @@ static void cnl_display_core_init(struct drm_i915_private *dev_priv, bool resume /* 6. Enable DBUF */ gen9_dbuf_enable(dev_priv); + + if (resume && dev_priv->csr.dmc_payload) + intel_csr_load_program(dev_priv); } static void cnl_display_core_uninit(struct drm_i915_private *dev_priv) |
