diff options
| author | Gustavo Sousa <gustavo.sousa@intel.com> | 2024-11-08 09:57:17 -0300 |
|---|---|---|
| committer | Matt Roper <matthew.d.roper@intel.com> | 2024-11-08 09:54:05 -0800 |
| commit | 5a83381fc4715e885e4951e76b4c094bda47d16a (patch) | |
| tree | b0d78384f1895291c21ac873b69101ff515da603 /drivers/gpu/drm/i915/display/intel_dmc.c | |
| parent | 9fe9cd95feacce9ae1c30c88a5513f556623d24d (diff) | |
drm/i915/dmc_wl: Couple enable/disable with dynamic DC states
Enabling and disabling the DMC wakelock should be done as part of
enabling and disabling of dynamic DC states, respectively. We should not
enable or disable DMC wakelock independently of DC states, otherwise we
would risk ending up with an inconsistent state where dynamic DC states
are enabled and the DMC wakelock is disabled, going against current
recommendations and making MMIO transactions potentially slower. In
future display IPs that could have a worse outcome if DMC trap
implementation is completely removed.
So, let's make things safer by tying stuff together, removing the
independent calls, and also put warnings in place to detect inconsistent
calls.
Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241108130218.24125-13-gustavo.sousa@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_dmc.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dmc.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dmc.c b/drivers/gpu/drm/i915/display/intel_dmc.c index 87bdacfd9edf..221d3abda791 100644 --- a/drivers/gpu/drm/i915/display/intel_dmc.c +++ b/drivers/gpu/drm/i915/display/intel_dmc.c @@ -638,8 +638,6 @@ void intel_dmc_disable_program(struct intel_display *display) pipedmc_clock_gating_wa(display, true); disable_all_event_handlers(display); pipedmc_clock_gating_wa(display, false); - - intel_dmc_wl_disable(display); } void assert_dmc_loaded(struct intel_display *display) @@ -1146,8 +1144,6 @@ void intel_dmc_suspend(struct intel_display *display) if (dmc) flush_work(&dmc->work); - intel_dmc_wl_disable(display); - /* Drop the reference held in case DMC isn't loaded. */ if (!intel_dmc_has_payload(display)) intel_dmc_runtime_pm_put(display); |