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author | Wenjing Liu <wenjing.liu@amd.com> | 2021-05-17 22:54:19 +0300 |
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committer | Alex Deucher <alexander.deucher@amd.com> | 2021-06-08 19:15:54 +0300 |
commit | 416b4e7596fa8cbe47f94f53009e252acfd36ece (patch) | |
tree | 4550ee21d620fb96a23fa7f0757a056e0bdbf9a0 /drivers/gpu/drm/amd/display/dc/dml/dcn30 | |
parent | f56c837afce45ec904b23bfd4d7df3e304624972 (diff) | |
download | linux-416b4e7596fa8cbe47f94f53009e252acfd36ece.tar.xz |
drm/amd/display: delay 100ms before restart after failing to read CP_IRQ
[why]
Some DPRX will issue CP_IRQ when user disconnects a display
that has been authenticated.
Since display is being disconnecting dpcd read will fail.
This will cause us to attempt HDCP retry on disconnection.
We are adding a 100ms delay before retry.
So we will only start retry if within 100ms there is no disconnection call
to HDCP module.
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Stylon Wang <stylon.wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dml/dcn30')
0 files changed, 0 insertions, 0 deletions