drm/i915: Sanitize the TypeC FIA lane configuration decoding

Use hex numbers, since that makes more sense when decoding a bit pattern.

No functional change.

Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Animesh Manna <animesh.manna@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190628143635.22066-16-imre.deak@intel.com

diff --git a/drivers/gpu/drm/i915/display/intel_tc.c b/drivers/gpu/drm/i915/display/intel_tc.c
index 18a599a71bd3e6db393f31eaee32206fde772029..58a228ba7696f62621230b90183de3c66a11d839 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_tc.c
+++ b/drivers/gpu/drm/i915/display/intel_tc.c
@@ -52,15 +52,16 @@ int intel_tc_port_fia_max_lane_count(struct intel_digital_port *dig_port)
        switch (lane_mask) {
        default:
                MISSING_CASE(lane_mask);
-       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;
        }
 }