diff options
| author | Mitul Golani <mitulkumar.ajitkumar.golani@intel.com> | 2025-12-23 16:15:31 +0530 |
|---|---|---|
| committer | Ankit Nautiyal <ankit.k.nautiyal@intel.com> | 2025-12-30 10:02:20 +0530 |
| commit | 80d14983595ba3bc10d4e1349db295a5645276ce (patch) | |
| tree | 77579048564ee3df1ed29145f33488668aa7bd32 | |
| parent | 7bf11bc2f716f6824b3b3d418319967213aab2a5 (diff) | |
drm/i915/vrr: Add function to reset DC balance accumulated params
Add function which resets all accumulated DC Balance parameters
whenever adaptive mode of VRR goes off. This helps to give a
fresh start when VRR is re-enabled.
--v2:
- Typo, change crtc_state to old_crtc_state. (Ankit)
Signed-off-by: Mitul Golani <mitulkumar.ajitkumar.golani@intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Link: https://patch.msgid.link/20251223104542.2688548-10-mitulkumar.ajitkumar.golani@intel.com
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_display.c | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_vrr.c | 13 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_vrr.h | 3 |
3 files changed, 17 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index a7e71ad8a886..35a97d6bc059 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -1158,6 +1158,7 @@ static void intel_pre_plane_update(struct intel_atomic_state *state, if (intel_crtc_vrr_disabling(state, crtc)) { intel_vrr_disable(old_crtc_state); + intel_vrr_dcb_reset(old_crtc_state, crtc); intel_crtc_update_active_timings(old_crtc_state, false); } diff --git a/drivers/gpu/drm/i915/display/intel_vrr.c b/drivers/gpu/drm/i915/display/intel_vrr.c index dbfe56e8973d..c3a8161fb8e1 100644 --- a/drivers/gpu/drm/i915/display/intel_vrr.c +++ b/drivers/gpu/drm/i915/display/intel_vrr.c @@ -646,6 +646,19 @@ void intel_vrr_set_transcoder_timings(const struct intel_crtc_state *crtc_state) EMP_AS_SDP_DB_TL(crtc_state->vrr.vsync_start)); } +void +intel_vrr_dcb_reset(const struct intel_crtc_state *old_crtc_state, + struct intel_crtc *crtc) +{ + struct intel_display *display = to_intel_display(old_crtc_state); + enum pipe pipe = crtc->pipe; + + if (!old_crtc_state->vrr.dc_balance.enable) + return; + + intel_de_write(display, PIPEDMC_DCB_BALANCE_RESET(pipe), 0); +} + void intel_vrr_send_push(struct intel_dsb *dsb, const struct intel_crtc_state *crtc_state) { diff --git a/drivers/gpu/drm/i915/display/intel_vrr.h b/drivers/gpu/drm/i915/display/intel_vrr.h index 66fb9ad846f2..d40ed5504180 100644 --- a/drivers/gpu/drm/i915/display/intel_vrr.h +++ b/drivers/gpu/drm/i915/display/intel_vrr.h @@ -11,6 +11,7 @@ struct drm_connector_state; struct intel_atomic_state; struct intel_connector; +struct intel_crtc; struct intel_crtc_state; struct intel_dsb; struct intel_display; @@ -39,6 +40,8 @@ bool intel_vrr_is_fixed_rr(const struct intel_crtc_state *crtc_state); void intel_vrr_transcoder_enable(const struct intel_crtc_state *crtc_state); void intel_vrr_transcoder_disable(const struct intel_crtc_state *crtc_state); void intel_vrr_set_fixed_rr_timings(const struct intel_crtc_state *crtc_state); +void intel_vrr_dcb_reset(const struct intel_crtc_state *old_crtc_state, + struct intel_crtc *crtc); bool intel_vrr_always_use_vrr_tg(struct intel_display *display); int intel_vrr_safe_window_start(const struct intel_crtc_state *crtc_state); int intel_vrr_vmin_safe_window_end(const struct intel_crtc_state *crtc_state); |