diff options
| author | Imre Deak <imre.deak@intel.com> | 2022-07-28 11:14:40 +0300 |
|---|---|---|
| committer | Imre Deak <imre.deak@intel.com> | 2022-07-28 16:51:27 +0300 |
| commit | fa6a4cdeafa0ab674d0f72067304c5408c89964f (patch) | |
| tree | 0a00171a52869624d8b9a9eb74b84d34c5e952d5 /drivers/gpu/drm/i915/display/intel_display_power.c | |
| parent | c4cf059d9c2c4849c65b481c6853bb93c8b33f3b (diff) | |
| download | linux-fa6a4cdeafa0ab674d0f72067304c5408c89964f.tar.xz | |
drm/i915/d12+: Disable DMC handlers during loading/disabling the firmware
Disable the DMC event handlers before loading the firmware and after
uninitializing the display, to make sure the firmware is inactive. This
matches the Bspec "Sequences for Display C5 and C6" page for GEN12+.
Add a TODO comment for doing the same on pre-GEN12 platforms.
v2:
- Add a macro for the number of event handlers.
- Disable the event handlers only on GEN12+.
- s/dev_priv/i915/ in docbook comment.
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com> #v1
Link: https://patchwork.freedesktop.org/patch/msgid/20220728081440.1676857-1-imre.deak@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_display_power.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_display_power.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c b/drivers/gpu/drm/i915/display/intel_display_power.c index 589af257edeb..22f65a9968c6 100644 --- a/drivers/gpu/drm/i915/display/intel_display_power.c +++ b/drivers/gpu/drm/i915/display/intel_display_power.c @@ -1433,6 +1433,7 @@ static void skl_display_core_uninit(struct drm_i915_private *dev_priv) return; gen9_disable_dc_states(dev_priv); + /* TODO: disable DMC program */ gen9_dbuf_disable(dev_priv); @@ -1500,6 +1501,7 @@ static void bxt_display_core_uninit(struct drm_i915_private *dev_priv) return; gen9_disable_dc_states(dev_priv); + /* TODO: disable DMC program */ gen9_dbuf_disable(dev_priv); @@ -1675,6 +1677,7 @@ static void icl_display_core_uninit(struct drm_i915_private *dev_priv) return; gen9_disable_dc_states(dev_priv); + intel_dmc_disable_program(dev_priv); /* 1. Disable all display engine functions -> aready done */ |