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| author | Mika Kahola <mika.kahola@intel.com> | 2016-09-09 13:10:55 +0200 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2016-09-15 13:50:55 +0200 |
| commit | 70ec064516cc45525f7072f9e57ff780e987f0cd (patch) | |
| tree | f1adb270612443c559842130f695135c1e3bcfb5 /include | |
| parent | drm/i915: Read DP branch device SW revision (diff) | |
| download | linux-70ec064516cc45525f7072f9e57ff780e987f0cd.tar.xz linux-70ec064516cc45525f7072f9e57ff780e987f0cd.zip | |
drm/i915: Check pixel rate for DP to VGA dongle
Filter out a mode that exceeds the max pixel rate setting
for DP to VGA dongle. This is defined in DPCD register 0x81
if detailed cap info i.e. info field is 4 bytes long and
it is available for DP downstream port.
The register defines the pixel rate divided by 8 in MP/s.
v2: DPCD read outs and computation moved to drm (Ville, Daniel)
v3: Sink pixel rate computation moved to drm_dp_max_sink_dotclock()
function (Daniel)
v4: Use of drm_dp_helper.c routines to compute max pixel clock (Ville)
v5: Use of intel_dp->downstream_ports to read out port capabilities.
Code restructuring (Ville)
v6: Move DP branch device check to drm_dp_helper.c (Daniel)
v7: Cleanup as suggested by Ville
Reviewed-by: Jim Bride <jim.bride@linux.intel.com>
Signed-off-by: Mika Kahola <mika.kahola@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1473419458-17080-10-git-send-email-mika.kahola@intel.com
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions