[igt-dev] [PATCH i-g-t 5/7] lib/kms: Introduce igt_output_preferred_vrefresh()

[Modem, Bhanuprakash]

> From: igt-dev <igt-dev-bounces at lists.freedesktop.org> On Behalf Of Ville
> Syrjala
> Sent: Wednesday, October 13, 2021 6:30 PM
> To: igt-dev at lists.freedesktop.org
> Subject: [igt-dev] [PATCH i-g-t 5/7] lib/kms: Introduce
> igt_output_preferred_vrefresh()
> 
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> 
> Add a helper to query the output's preferred vertical
> refresh rate.
> 
> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>

LGTM
Reviewed-by: Bhanuprakash Modem <bhanuprakash.modem at intel.com>

- Bhanu

> ---
>  lib/igt_kms.c | 18 ++++++++++++++++++
>  lib/igt_kms.h |  1 +
>  2 files changed, 19 insertions(+)
> 
> diff --git a/lib/igt_kms.c b/lib/igt_kms.c
> index b6669257f08c..34a2aa00ea02 100644
> --- a/lib/igt_kms.c
> +++ b/lib/igt_kms.c
> @@ -4035,6 +4035,24 @@ void igt_output_override_mode(igt_output_t *output,
> const drmModeModeInfo *mode)
>  	}
>  }
> 
> +/*
> + * igt_output_preferred_vrefresh:
> + * @output: Output whose preferred vrefresh is queried
> + *
> + * Return the vertical refresh rate of @output's preferred
> + * mode. If the output reports no modes return 60Hz as
> + * a fallback.
> + */
> +int igt_output_preferred_vrefresh(igt_output_t *output)
> +{
> +	drmModeConnector *connector = output->config.connector;
> +
> +	if (connector->count_modes)
> +		return connector->modes[0].vrefresh;
> +	else
> +		return 60;
> +}
> +
>  /*
>   * igt_output_set_pipe:
>   * @output: Target output for which the pipe is being set to
> diff --git a/lib/igt_kms.h b/lib/igt_kms.h
> index 7e3e67efea7a..e9ecd21e9824 100644
> --- a/lib/igt_kms.h
> +++ b/lib/igt_kms.h
> @@ -461,6 +461,7 @@ void igt_display_require_output_on_pipe(igt_display_t
> *display, enum pipe pipe);
>  const char *igt_output_name(igt_output_t *output);
>  drmModeModeInfo *igt_output_get_mode(igt_output_t *output);
>  void igt_output_override_mode(igt_output_t *output, const drmModeModeInfo
> *mode);
> +int igt_output_preferred_vrefresh(igt_output_t *output);
>  void igt_output_set_pipe(igt_output_t *output, enum pipe pipe);
>  igt_plane_t *igt_output_get_plane(igt_output_t *output, int plane_idx);
>  igt_plane_t *igt_output_get_plane_type(igt_output_t *output, int plane_type);
> --
> 2.32.0