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drm/i915/bios: Parse the VBT TypeC and Thunderbolt port flags 

This is needed by the next patch to determine if a DDI TypeC port is
physically wired to a legacy DP or legacy HDMI connector or if the port
is wired to a USB-C/Thunderbolt connector.

Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: José Roberto de Souza <jose.souza@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181214182703.18865-3-imre.deak@intel.com
This commit is contained in:
Imre Deak 2018-12-14 20:27:01 +02:00
parent f0236a852c
commit 38b3416f3c
2 changed files with 11 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/i915/i915_drv.h
View File

@ -935,6 +935,8 @@ struct ddi_vbt_port_info {
uint8_t supports_hdmi:1;
uint8_t supports_dp:1;
uint8_t supports_edp:1;
uint8_t supports_typec_usb:1;
uint8_t supports_tbt:1;
uint8_t alternate_aux_channel;
uint8_t alternate_ddc_pin;

11
drivers/gpu/drm/i915/intel_bios.c
View File

@ -1386,8 +1386,15 @@ static void parse_ddi_port(struct drm_i915_private *dev_priv, enum port port,
info->supports_dp = is_dp;
info->supports_edp = is_edp;
DRM_DEBUG_KMS("Port %c VBT info: DP:%d HDMI:%d DVI:%d EDP:%d CRT:%d\n",
port_name(port), is_dp, is_hdmi, is_dvi, is_edp, is_crt);
if (bdb_version >= 195)
info->supports_typec_usb = child->dp_usb_type_c;
if (bdb_version >= 209)
info->supports_tbt = child->tbt;
DRM_DEBUG_KMS("Port %c VBT info: DP:%d HDMI:%d DVI:%d EDP:%d CRT:%d TCUSB:%d TBT:%d\n",
port_name(port), is_dp, is_hdmi, is_dvi, is_edp, is_crt,
info->supports_typec_usb, info->supports_tbt);
if (is_edp && is_dvi)
DRM_DEBUG_KMS("Internal DP port %c is TMDS compatible\n",