[PATCH i-g-t 09/13] tools/intel_vbt_decode: Add version checks for backlight decoding

[Jani Nikula]

On Fri, 22 Mar 2024, Ville Syrjala <ville.syrjala at linux.intel.com> wrote:
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
>
> Decode stuff from the backlight block based on the version
> number.
>
> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>

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


> ---
>  tools/intel_vbt_decode.c | 39 +++++++++++++++++++++++++--------------
>  1 file changed, 25 insertions(+), 14 deletions(-)
>
> diff --git a/tools/intel_vbt_decode.c b/tools/intel_vbt_decode.c
> index fa9c45920853..642cb84a56b6 100644
> --- a/tools/intel_vbt_decode.c
> +++ b/tools/intel_vbt_decode.c
> @@ -650,27 +650,38 @@ static void dump_backlight_info(struct context *context,
>  			printf("\t\tI2C command: 0x%02x\n", blc->i2c_command);
>  		}
>  
> +		if (context->bdb->version < 162)
> +			continue;
> +
>  		printf("\t\tLevel: %u\n", backlight->level[i]);
>  
> +		if (context->bdb->version < 191)
> +			continue;
> +
>  		control = &backlight->backlight_control[i];
>  
>  		printf("\t\tControl type: %u\n", control->type);
>  		printf("\t\tController: %u\n", control->controller);
>  
> -		if (context->bdb->version >= 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 >= 236)
> -			printf("\t\tBrigthness precision bits: %u\n",
> -			       backlight->brightness_precision_bits[i]);
> -
> -		if (context->bdb->version >= 239)
> -			printf("\t\tHDR DPCD refresh timeout: %.2f ms\n",
> -			       backlight->hdr_dpcd_refresh_timeout[i] / 100.0);
> +		if (context->bdb->version < 234)
> +			continue;
> +
> +		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 < 236)
> +			continue;
> +
> +		printf("\t\tBrigthness precision bits: %u\n",
> +		       backlight->brightness_precision_bits[i]);
> +
> +		if (context->bdb->version < 239)
> +			continue;
> +
> +		printf("\t\tHDR DPCD refresh timeout: %.2f ms\n",
> +		       backlight->hdr_dpcd_refresh_timeout[i] / 100.0);
>  	}
>  }

-- 
Jani Nikula, Intel