[PATCH v2 12/13] drm/i915/display: Prepare state checker for dc balance enable

[Mitul Golani]

Prepare state check param for enabling dc balance enable bit.

Signed-off-by: Mitul Golani <mitulkumar.ajitkumar.golani at intel.com>
---
 drivers/gpu/drm/i915/display/intel_display.c | 1 +
 drivers/gpu/drm/i915/display/intel_vrr.c     | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 4a21acb88aa7..0bb39134f52d 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -5402,6 +5402,7 @@ 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_BOOL(vrr.dc_balance.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);
diff --git a/drivers/gpu/drm/i915/display/intel_vrr.c b/drivers/gpu/drm/i915/display/intel_vrr.c
index e8802348e5fa..7c09f384a684 100644
--- a/drivers/gpu/drm/i915/display/intel_vrr.c
+++ b/drivers/gpu/drm/i915/display/intel_vrr.c
@@ -804,6 +804,7 @@ void intel_vrr_get_config(struct intel_crtc_state *crtc_state)
 
 	if (HAS_DC_BALANCE(display)) {
 		dcb_ctl = intel_de_read(display, PIPEDMC_DCB_CTL(display, cpu_transcoder));
+		crtc_state->vrr.dc_balance.enable = dcb_ctl & PIPEDMC_ADAPTIVE_DCB_ENABLE;
 		crtc_state->vrr.dc_balance.vmin =
 			intel_de_read(display, PIPEDMC_DCB_VMIN(display, cpu_transcoder)) + 1;
 		crtc_state->vrr.dc_balance.vmax =
-- 
2.48.1