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| author | Meenakshikumar Somasundaram <meenakshikumar.somasundaram@amd.com> | 2021-01-27 01:05:28 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-10-06 15:51:03 -0400 |
| commit | 892b74a646bb5f9bc386c40c818d2305c7496bfa (patch) | |
| tree | 398827a377909190d2d83a67d2152e4f37a2397d /drivers/gpu/drm/amd/display/dmub/src/dmub_srv_stat.c | |
| parent | 9fa0fb77132fe9e83f2b357fd5a2b16293a5b9ee (diff) | |
| download | linux-892b74a646bb5f9bc386c40c818d2305c7496bfa.tar.gz linux-892b74a646bb5f9bc386c40c818d2305c7496bfa.tar.bz2 linux-892b74a646bb5f9bc386c40c818d2305c7496bfa.zip | |
drm/amd/display: Support for DMUB HPD and HPD RX interrupt handling
[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>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dmub/src/dmub_srv_stat.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dmub/src/dmub_srv_stat.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dmub/src/dmub_srv_stat.c b/drivers/gpu/drm/amd/display/dmub/src/dmub_srv_stat.c index 70766d534c9c..d7f66e5285c0 100644 --- a/drivers/gpu/drm/amd/display/dmub/src/dmub_srv_stat.c +++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_srv_stat.c @@ -76,6 +76,17 @@ enum dmub_status dmub_srv_stat_get_notification(struct dmub_srv *dmub, dmub_memcpy((void *)¬ify->aux_reply, (void *)&cmd.dp_aux_reply.reply_data, sizeof(struct aux_reply_data)); break; + case DMUB_OUT_CMD__DP_HPD_NOTIFY: + if (cmd.dp_hpd_notify.hpd_data.hpd_type == DP_HPD) { + notify->type = DMUB_NOTIFICATION_HPD; + notify->hpd_status = cmd.dp_hpd_notify.hpd_data.hpd_status; + } else { + notify->type = DMUB_NOTIFICATION_HPD_IRQ; + } + + notify->link_index = cmd.dp_hpd_notify.hpd_data.instance; + notify->result = AUX_RET_SUCCESS; + break; default: notify->type = DMUB_NOTIFICATION_NO_DATA; break; |