drm/i915: Give aux channels a better name

The aux ch is used for more than DDC, so let's give it a better
name. For maximum ease let's include both the AUX ch identifier
and the port identifier (for cases where the VBT has redefined
the relationship of the two).

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200123154542.12271-3-ville.syrjala@linux.intel.com
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 96c2c34..2994b46 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -1748,7 +1748,8 @@ intel_dp_aux_init(struct intel_dp *intel_dp)
        drm_dp_aux_init(&intel_dp->aux);
 
        /* Failure to allocate our preferred name is not critical */
-       intel_dp->aux.name = kasprintf(GFP_KERNEL, "DPDDC-%c",
+       intel_dp->aux.name = kasprintf(GFP_KERNEL, "AUX %c/port %c",
+                                      aux_ch_name(dig_port->aux_ch),
                                       port_name(encoder->port));
        intel_dp->aux.transfer = intel_dp_aux_transfer;
 }