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drm/i915/vrr: Add DC Balance params to crtc_state

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Add DC Balance params to crtc_state, also add state checker
params for related properties.

--v3:
- Seggregate crtc_state params with this patch. (Ankit)

--v4:
- Update commit message and header. (Ankit)
- Add +1 to VMIN and VMAX only when it is non-zero. (Ankit)

--v5:
- Add headers in sorted order. (Jani Nikula)

--v6:
- Add a separate function to get and check dc_balance params.
- Avoid repeatative use of MMIO read. (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/20251223104542.2688548-6-mitulkumar.ajitkumar.golani@intel.com
This commit is contained in:
Mitul Golani
2025-12-23 16:15:27 +05:30
committed by Ankit Nautiyal
parent 19467b46c2
commit be843f3480
3 changed files with 46 additions and 0 deletions
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7
drivers/gpu/drm/i915/display/intel_display.c
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@@ -5476,6 +5476,13 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config,
PIPE_CONF_CHECK_LLI(cmrr.cmrr_m);
PIPE_CONF_CHECK_LLI(cmrr.cmrr_n);
PIPE_CONF_CHECK_BOOL(cmrr.enable);
PIPE_CONF_CHECK_I(vrr.dc_balance.vmin);
PIPE_CONF_CHECK_I(vrr.dc_balance.vmax);
PIPE_CONF_CHECK_I(vrr.dc_balance.guardband);
PIPE_CONF_CHECK_I(vrr.dc_balance.slope);
PIPE_CONF_CHECK_I(vrr.dc_balance.max_increase);
PIPE_CONF_CHECK_I(vrr.dc_balance.max_decrease);
PIPE_CONF_CHECK_I(vrr.dc_balance.vblank_target);
}
if (!fastset || intel_vrr_always_use_vrr_tg(display)) {