]> Git Repo - linux.git/commit
drm/i915/dp: Initialize the source OUI write timestamp always
authorImre Deak <[email protected]>
Fri, 25 Oct 2024 16:02:54 +0000 (19:02 +0300)
committerImre Deak <[email protected]>
Thu, 31 Oct 2024 15:47:26 +0000 (17:47 +0200)
commit5861258c4e6a829a10200b41ba3fb4d7d1a4054f
treed3a6ac6daf2b326e633b67dc9f3d70da435d3d45
parentafc73333d922e01758abd77f92f6867ab3449cb4
drm/i915/dp: Initialize the source OUI write timestamp always

If the source OUI DPCD register value matches the expected Intel OUI
value, the write timestamp doesn't get updated leaving it at the 0
initial value if the OUI wasn't written before. This can lead to an
incorrect wait duration in intel_dp_wait_source_oui(), since jiffies is
not inited to 0 in general (on a 32 bit system INITIAL_JIFFIES is set to
5 minutes ahead of wrap-around). Fix this by intializing the write
timestamp in the above case as well.

Reviewed-by: Ville Syrjälä <[email protected]>
Signed-off-by: Imre Deak <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
drivers/gpu/drm/i915/display/intel_dp.c
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