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From: Jani Nikula <jani.nikula@linux.intel.com>
To: Ville Syrjala <ville.syrjala@linux.intel.com>,
 igt-dev@lists.freedesktop.org
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Date: Mon, 27 Feb 2023 19:17:49 +0200
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Subject: Re: [igt-dev] [PATCH i-g-t] tools/intel_vbt_decode: Dump mode
 backlight data
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On Mon, 20 Feb 2023, Ville Syrjala <ville.syrjala@linux.intel.com> wrote:
> From: Ville Syrj=C3=A4l=C3=A4 <ville.syrjala@linux.intel.com>
>
> Dump the new stuff from the backlight block:
> - brightness_level
> - brightness_min_level
> - brightness_precision_bits
> - hdr_dpcd_refresh_timeout
>
> Signed-off-by: Ville Syrj=C3=A4l=C3=A4 <ville.syrjala@linux.intel.com>

Reviewed-by: Jani Nikula <jani.nikula@intel.com>

> ---
>  tools/intel_vbt_decode.c | 15 +++++++++++++++
>  1 file changed, 15 insertions(+)
>
> diff --git a/tools/intel_vbt_decode.c b/tools/intel_vbt_decode.c
> index 8f707c1f822a..7caa71dac793 100644
> --- a/tools/intel_vbt_decode.c
> +++ b/tools/intel_vbt_decode.c
> @@ -626,6 +626,21 @@ static void dump_backlight_info(struct context *cont=
ext,
>=20=20
>  		printf("\t\tControl type: %u\n", control->type);
>  		printf("\t\tController: %u\n", control->controller);
> +
> +		if (context->bdb->version >=3D 234) {
> +			printf("\t\tBrightness level: %u\n",
> +			       backlight->brightness_level[i].level);
> +			printf("\t\tBrightness min level: %u\n",
> +			       backlight->brightness_min_level[i].level);
> +		}
> +
> +		if (context->bdb->version >=3D 236)
> +			printf("\t\tBrigthness precision bits: %u\n",
> +			       backlight->brightness_precision_bits[i]);
> +
> +		if (context->bdb->version >=3D 239)
> +			printf("\t\tHDR DPCD refresh timeout: %.2f ms\n",
> +			       backlight->hdr_dpcd_refresh_timeout[i] / 100.0);
>  	}
>  }

--=20
Jani Nikula, Intel Open Source Graphics Center