drm/i915/bios: Parse the VBT TypeC and Thunderbolt port flags (38b3416f) · Commits · 戴 / test

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

drivers/gpu/drm/i915/i915_drv.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -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;

drivers/gpu/drm/i915/intel_bios.c

+9 −2

Original line number	Diff line number	Diff line
		@@ -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",

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