[Intel-gfx] [PATCH 15/23] drm/i915: Sanitize the TypeC FIA lane configuration decoding

[Ville Syrjälä]

On Tue, Jun 04, 2019 at 05:58:18PM +0300, Imre Deak wrote:
> Use hex numbers, since that makes more sense when decoding a bit pattern.
> 
> No functional change.
> 
> Suggested-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
> Cc: Animesh Manna <animesh.manna at intel.com>
> Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
> Signed-off-by: Imre Deak <imre.deak at intel.com>
> ---
>  drivers/gpu/drm/i915/intel_tc.c | 15 ++++++++-------
>  1 file changed, 8 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_tc.c b/drivers/gpu/drm/i915/intel_tc.c
> index fc0341dc50c5..4b2f525bc2a6 100644
> --- a/drivers/gpu/drm/i915/intel_tc.c
> +++ b/drivers/gpu/drm/i915/intel_tc.c
> @@ -72,15 +72,16 @@ int intel_tc_port_fia_max_lane_count(struct intel_digital_port *dig_port)
>  	switch (lane_info) {
>  	default:
>  		MISSING_CASE(lane_info);
> -	case 1:
> -	case 2:
> -	case 4:
> -	case 8:
> +		/* fall-through */
> +	case 0x1:
> +	case 0x2:
> +	case 0x4:
> +	case 0x8:
>  		return 1;
> -	case 3:
> -	case 12:
> +	case 0x3:
> +	case 0xc:
>  		return 2;
> -	case 15:
> +	case 0xf:
>  		return 4;
>  	}

Still looks like a hand rolled hweight() to me ;)

>  }
> -- 
> 2.17.1

-- 
Ville Syrjälä
Intel