drm/amd/display: Support for DMUB HPD and HPD RX interrupt handling

Browse source

[WHY]
To add support for HPD & HPD RX interrupt handling for USB4 DPIA in
YELLOW_CARP_B0. USB4 DPIA HPD & HPD RX interrupts are issued from DMUB to
driver as a outbox1 message.

[HOW]
1) Created get_link_index_from_dpia_port_index() to retrieve link index
   from dpia port index for HPD & HPD RX dmub notifications.
2) Added DMUB HPD & HPD RX handling in dmub_srv_stat_get_notification().

Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Wayne Lin <Wayne.Lin@amd.com>
Acked-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Meenakshikumar Somasundaram <meenakshikumar.somasundaram@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Meenakshikumar Somasundaram 2021-01-27 01:05:28 -05:00 • committed by Alex Deucher

parent 9fa0fb7713

commit 892b74a646

5 changed files with 45 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

20

drivers/gpu/drm/amd/display/dc/core/dc.c

View file

7

drivers/gpu/drm/amd/display/dc/core/dc_stat.c

View file

3

drivers/gpu/drm/amd/display/dc/dc.h

View file

4

drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h

View file

11

drivers/gpu/drm/amd/display/dmub/src/dmub_srv_stat.c

View file