We don't parse the VBT vswing/preemphassis tables at all currently.
Let's WARN if a port wants to use them so we get a heads up that
whether we really need to implement this stuff or not. My
current stash contains no VBTs with this bit set.
v2: Move to print_ddi_port() (Jani)
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220916204132.10469-1-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
drm_dbg_kms(&i915->drm,
"Port %c VBT DP max link rate: %d\n",
port_name(port), dp_max_link_rate);
+
+ /*
+ * FIXME need to implement support for VBT
+ * vswing/preemph tables should this ever trigger.
+ */
+ drm_WARN(&i915->drm, child->use_vbt_vswing,
+ "Port %c asks to use VBT vswing/preemph tables\n",
+ port_name(port));
}
static void parse_ddi_port(struct intel_bios_encoder_data *devdata)