[PATCH i-g-t 09/20] tools/intel_vbt_decode: Extract dump_pnp_id()

[Jani Nikula]

On Fri, 31 May 2024, Ville Syrjala <ville.syrjala at linux.intel.com> wrote:
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
>
> Several different VBT blocks contain PnP IDs. Extract the
> helper to dump them out.

Just nitpicking inline, can be fixed in follow-up. The patch is an
improvement as-is.

>
> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
> ---
>  tools/intel_vbt_decode.c | 20 +++++++++++++-------
>  1 file changed, 13 insertions(+), 7 deletions(-)
>
> diff --git a/tools/intel_vbt_decode.c b/tools/intel_vbt_decode.c
> index 6cf6d471b5e2..2a11490eed22 100644
> --- a/tools/intel_vbt_decode.c
> +++ b/tools/intel_vbt_decode.c
> @@ -1394,6 +1394,18 @@ static char *decode_pnp_id(u16 mfg_name, char str[4])
>  	return str;
>  }
>  
> +static void dump_pnp_id(const struct bdb_edid_pnp_id *pnp_id)

Maybe pass prefix or indent level?

> +{
> +	char mfg[4];
> +
> +	printf("\t\t  Mfg name: %s (0x%x)\n",
> +	       decode_pnp_id(pnp_id->mfg_name, mfg), pnp_id->mfg_name);
> +	printf("\t\t  Product code: %u\n", pnp_id->product_code);
> +	printf("\t\t  Serial: %u\n", pnp_id->serial);
> +	printf("\t\t  Mfg week: %d\n", pnp_id->mfg_week);
> +	printf("\t\t  Mfg year: %d\n", 1990 + pnp_id->mfg_year);

These could be improved to match spec (see decode_date() in kernel
drm_edid.c).

> +}
> +
>  static void dump_lfp_data(struct context *context,
>  			  const struct bdb_block *block)
>  {
> @@ -1419,7 +1431,6 @@ static void dump_lfp_data(struct context *context,
>  			block_data(block) + ptrs->ptr[i].panel_pnp_id.offset;
>  		const struct bdb_lfp_data_tail *tail =
>  			block_data(block) + ptrs->panel_name.offset;
> -		char mfg[4];
>  
>  		if (!dump_panel(context, i))
>  			continue;
> @@ -1457,12 +1468,7 @@ static void dump_lfp_data(struct context *context,
>  		       "BAD!" : "good");
>  
>  		printf("\t\tPnP ID:\n");

I'd do this in dump_pnp_id() too.

> -		printf("\t\t  Mfg name: %s (0x%x)\n",
> -		       decode_pnp_id(pnp_id->mfg_name, mfg), pnp_id->mfg_name);
> -		printf("\t\t  Product code: %u\n", pnp_id->product_code);
> -		printf("\t\t  Serial: %u\n", pnp_id->serial);
> -		printf("\t\t  Mfg week: %d\n", pnp_id->mfg_week);
> -		printf("\t\t  Mfg year: %d\n", 1990 + pnp_id->mfg_year);
> +		dump_pnp_id(pnp_id);
>  
>  		if (!ptrs->panel_name.table_size)
>  			continue;

-- 
Jani Nikula, Intel