diff options
| author | Imre Deak | 2016-10-24 18:33:29 +0200 |
|---|---|---|
| committer | Imre Deak | 2016-10-26 11:41:01 +0200 |
| commit | 12a47a422862214d3a715a0bd93140b8176dcdc9 (patch) | |
| tree | df3974e3fa15ebb6cb38fe7bd0c7ac5252e0e570 /drivers/gpu/drm/i915/intel_dp.c | |
| parent | drm/i915/lspcon: Fail LSPCON probe if the start of DPCD can't be read (diff) | |
| download | kernel-qcow2-linux-12a47a422862214d3a715a0bd93140b8176dcdc9.tar.gz kernel-qcow2-linux-12a47a422862214d3a715a0bd93140b8176dcdc9.tar.xz kernel-qcow2-linux-12a47a422862214d3a715a0bd93140b8176dcdc9.zip | |
drm/i915/dp: Read DP descriptor for eDP and LSPCON too
As for external DP sink and branch devices read and print the DP
descriptor for eDP and LSPCON devices as well to aid debugging.
v2:
- Split out this change to a separate patch. (Jani)
Cc: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1477326811-30431-7-git-send-email-imre.deak@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/intel_dp.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 07a502fd6773..6eb43647163c 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1461,7 +1461,7 @@ __intel_dp_read_desc(struct intel_dp *intel_dp, struct intel_dp_desc *desc) sizeof(*desc); } -static bool intel_dp_read_desc(struct intel_dp *intel_dp) +bool intel_dp_read_desc(struct intel_dp *intel_dp) { struct intel_dp_desc *desc = &intel_dp->desc; bool oui_sup = intel_dp->dpcd[DP_DOWN_STREAM_PORT_COUNT] & @@ -3521,6 +3521,8 @@ intel_edp_init_dpcd(struct intel_dp *intel_dp) if (!intel_dp_read_dpcd(intel_dp)) return false; + intel_dp_read_desc(intel_dp); + if (intel_dp->dpcd[DP_DPCD_REV] >= 0x11) dev_priv->no_aux_handshake = intel_dp->dpcd[DP_MAX_DOWNSPREAD] & DP_NO_AUX_HANDSHAKE_LINK_TRAINING; |