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

[Nautiyal, Ankit K]

On 4/21/2025 9:18 PM, Mitul Golani wrote:
> Prepare state check param for enabling dc balance enable bit.

This patch can be squashed into the previous patch.

Regards,

Ankit

>
> 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 =