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drm/nouveau/disp: fix DP capable DSM connectors

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Just special case DP DSM connectors until we properly figure out how to
deal with this.

This resolves user regressions on GPUs with such connectors without
reverting the original fix.

Cc: Lyude Paul <lyude@redhat.com>
Cc: stable@vger.kernel.org # 6.4+
Closes: https://gitlab.freedesktop.org/drm/nouveau/-/issues/255
Fixes: 2b5d1c29f6 ("drm/nouveau/disp: PIOR DP uses GPIO for HPD, not PMGR AUX interrupts")
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231011114134.861818-1-kherbst@redhat.com
This commit is contained in:
Karol Herbst
2023-10-11 13:41:34 +02:00
parent f2cab4b318
commit 4366faf433
1 changed files with 13 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/gpu/drm/nouveau/nvkm/engine/disp/uconn.c
View File

@@ -62,6 +62,18 @@ nvkm_uconn_uevent_gpio(struct nvkm_object *object, u64 token, u32 bits)
return object->client->event(token, &args, sizeof(args.v0));
}
static bool
nvkm_connector_is_dp_dms(u8 type)
{
switch (type) {
case DCB_CONNECTOR_DMS59_DP0:
case DCB_CONNECTOR_DMS59_DP1:
return true;
default:
return false;
}
}
static int
nvkm_uconn_uevent(struct nvkm_object *object, void *argv, u32 argc, struct nvkm_uevent *uevent)
{
@@ -101,7 +113,7 @@ nvkm_uconn_uevent(struct nvkm_object *object, void *argv, u32 argc, struct nvkm_
if (args->v0.types & NVIF_CONN_EVENT_V0_UNPLUG) bits |= NVKM_GPIO_LO;
if (args->v0.types & NVIF_CONN_EVENT_V0_IRQ) {
/* TODO: support DP IRQ on ANX9805 and remove this hack. */
if (!outp->info.location)
if (!outp->info.location && !nvkm_connector_is_dp_dms(conn->info.type))
return -EINVAL;
}