43 lines
2.1 KiB
Diff
43 lines
2.1 KiB
Diff
diff --git a/drivers/gpu/drm/i915/display/intel_display_params.c b/drivers/gpu/drm/i915/display/intel_display_params.c
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--- a/drivers/gpu/drm/i915/display/intel_display_params.c
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+++ b/drivers/gpu/drm/i915/display/intel_display_params.c
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@@ -120,6 +120,10 @@ intel_display_param_named_unsafe(enable_psr, int, 0400,
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"(0=disabled, 1=enable up to PSR1, 2=enable up to PSR2) "
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"Default: -1 (use per-chip default)");
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+intel_display_param_named_unsafe(enable_dc_balance, bool, 0400,
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+ "Enable VRR DC balance (0=disabled, 1=enabled). "
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+ "Default: 0 (disabled)");
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+
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intel_display_param_named_unsafe(enable_panel_replay, int, 0400,
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"Enable Panel Replay (0=disabled, 1=enabled). Default: -1 (use per-chip default)");
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diff --git a/drivers/gpu/drm/i915/display/intel_display_params.h b/drivers/gpu/drm/i915/display/intel_display_params.h
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--- a/drivers/gpu/drm/i915/display/intel_display_params.h
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+++ b/drivers/gpu/drm/i915/display/intel_display_params.h
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@@ -46,6 +46,7 @@ struct drm_printer;
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param(bool, enable_dp_mst, true, 0600) \
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param(int, enable_fbc, -1, 0600) \
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param(int, enable_psr, -1, 0600) \
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+ param(bool, enable_dc_balance, false, 0600) \
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param(int, enable_panel_replay, -1, 0600) \
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param(bool, psr_safest_params, false, 0400) \
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param(bool, enable_psr2_sel_fetch, true, 0400) \
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diff --git a/drivers/gpu/drm/i915/display/intel_vrr.c b/drivers/gpu/drm/i915/display/intel_vrr.c
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--- a/drivers/gpu/drm/i915/display/intel_vrr.c
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+++ b/drivers/gpu/drm/i915/display/intel_vrr.c
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@@ -383,10 +383,12 @@ static bool intel_vrr_dc_balance_possible(const struct intel_crtc_state *crtc_st
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static void
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intel_vrr_dc_balance_compute_config(struct intel_crtc_state *crtc_state)
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{
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+ struct intel_display *display = to_intel_display(crtc_state);
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int guardband_usec, adjustment_usec;
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struct drm_display_mode *adjusted_mode = &crtc_state->hw.adjusted_mode;
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- if (!intel_vrr_dc_balance_possible(crtc_state) || !crtc_state->vrr.enable)
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+ if (!intel_vrr_dc_balance_possible(crtc_state) ||
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+ !crtc_state->vrr.enable || !display->params.enable_dc_balance)
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return;
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crtc_state->vrr.dc_balance.vmax = crtc_state->vrr.vmax;
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