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| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2016-05-04 14:45:22 +0300 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2016-05-09 14:09:38 +0300 |
| commit | d61992565bd3cc5b66d74ed2e96df043c2a207e2 (patch) | |
| tree | 58377c6eff98fea37b0cbe2dc9c2d603da542c0f /drivers/gpu/drm/i915/intel_acpi.c | |
| parent | b2ccb822d376d1bbbe5d1f9118d1488b25e6bc6d (diff) | |
| download | linux-d61992565bd3cc5b66d74ed2e96df043c2a207e2.tar.xz | |
drm/i915: Determine DP++ type 1 DVI adaptor presence based on VBT
DP dual mode type 1 DVI adaptors aren't required to implement any
registers, so it's a bit hard to detect them. The best way would
be to check the state of the CONFIG1 pin, but we have no way to
do that. So as a last resort, check the VBT to see if the HDMI
port is in fact a dual mode capable DP port.
v2: Deal with VBT code reorganization
Deal with DRM_DP_DUAL_MODE_UNKNOWN
Reduce DEVICE_TYPE_DP_DUAL_MODE_BITS a bit
Accept both DP and HDMI dvo_port in VBT as my BSW
at least declare its DP port as HDMI :(
v3: Ignore DEVICE_TYPE_NOT_HDMI_OUTPUT (Shashank)
Cc: stable@vger.kernel.org
Cc: Tore Anderson <tore@fud.no>
Reported-by: Tore Anderson <tore@fud.no>
Fixes: 7a0baa623446 ("Revert "drm/i915: Disable 12bpc hdmi for now"")
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Shashank Sharma <shashank.sharma@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1462362322-31278-1-git-send-email-ville.syrjala@linux.intel.com
Reviewed-by: Shashank Sharma <shashank.sharma@intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_acpi.c')
0 files changed, 0 insertions, 0 deletions