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| author | Jani Nikula <jani.nikula@intel.com> | 2018-02-01 14:03:43 +0300 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2018-02-02 10:50:51 +0300 |
| commit | 99b91bda84060bac061d1649fad0e3bddcf67ce6 (patch) | |
| tree | d424ac1fd941df089ecedabf6c97a6fb3eac6655 /drivers/gpu/drm/i915/intel_vbt_defs.h | |
| parent | 4ba285d4154ab587cc00bf9bd04bb8c7b19b595a (diff) | |
| download | linux-99b91bda84060bac061d1649fad0e3bddcf67ce6.tar.xz | |
drm/i915/dp: limit DP link rate based on VBT on CNL+
We have the max DP link rate info available in VBT since BDB version
216, included in child device config since commit c4fb60b9aba9
("drm/i915/bios: add DP max link rate to VBT child device
struct"). Parse it and use it.
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/a8b1364d1f2394fba3062b6ad11b474744ea4366.1517482774.git.jani.nikula@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/intel_vbt_defs.h')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_vbt_defs.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_vbt_defs.h b/drivers/gpu/drm/i915/intel_vbt_defs.h index 3d3feee9b5dd..458468237b5f 100644 --- a/drivers/gpu/drm/i915/intel_vbt_defs.h +++ b/drivers/gpu/drm/i915/intel_vbt_defs.h @@ -320,6 +320,11 @@ enum vbt_gmbus_ddi { DDC_BUS_DDI_F, }; +#define VBT_DP_MAX_LINK_RATE_HBR3 0 +#define VBT_DP_MAX_LINK_RATE_HBR2 1 +#define VBT_DP_MAX_LINK_RATE_HBR 2 +#define VBT_DP_MAX_LINK_RATE_LBR 3 + /* * The child device config, aka the display device data structure, provides a * description of a port and its configuration on the platform. |