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| author | Imre Deak <imre.deak@intel.com> | 2017-10-03 12:51:58 +0300 |
|---|---|---|
| committer | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2017-10-04 15:49:31 -0700 |
| commit | 2a8408e5372503fe4df9b5bbb49fb3af0c212c67 (patch) | |
| tree | a91af7c6be7e2add97fa6ad59d0120239d377169 /drivers | |
| parent | 71300132975f364a0d3ebf68671a2ce4923191db (diff) | |
| download | linux-rpi-2a8408e5372503fe4df9b5bbb49fb3af0c212c67.tar.gz linux-rpi-2a8408e5372503fe4df9b5bbb49fb3af0c212c67.tar.bz2 linux-rpi-2a8408e5372503fe4df9b5bbb49fb3af0c212c67.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
(cherry picked from commit 57522c4c87de20d8f7ad4e142a3a4334066d55ff)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Diffstat (limited to 'drivers')
| -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 b66d8e136aa3..b3a087cb0860 100644 --- a/drivers/gpu/drm/i915/intel_runtime_pm.c +++ b/drivers/gpu/drm/i915/intel_runtime_pm.c @@ -2782,6 +2782,9 @@ 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); } #undef CNL_PROCMON_IDX |