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drm/nouveau/disp: PIOR DP uses GPIO for HPD, not PMGR AUX interrupts

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Fixes crash on boards with ANX9805 TMDS/DP encoders.

Cc: stable@vger.kernel.org # 6.4+
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230719044051.6975-2-skeggsb@gmail.com
This commit is contained in:
Ben Skeggs 2023-07-19 14:40:50 +10:00 committed by Karol Herbst
parent 752a281032
commit 2b5d1c29f6
1 changed files with 18 additions and 9 deletions
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27
drivers/gpu/drm/nouveau/nvkm/engine/disp/uconn.c
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@ -81,20 +81,29 @@ nvkm_uconn_uevent(struct nvkm_object *object, void *argv, u32 argc, struct nvkm_
return -ENOSYS;
list_for_each_entry(outp, &conn->disp->outps, head) {
if (outp->info.connector == conn->index && outp->dp.aux) {
if (args->v0.types & NVIF_CONN_EVENT_V0_PLUG ) bits |= NVKM_I2C_PLUG;
if (args->v0.types & NVIF_CONN_EVENT_V0_UNPLUG) bits |= NVKM_I2C_UNPLUG;
if (args->v0.types & NVIF_CONN_EVENT_V0_IRQ ) bits |= NVKM_I2C_IRQ;
if (outp->info.connector == conn->index)
break;
}
return nvkm_uevent_add(uevent, &device->i2c->event, outp->dp.aux->id, bits,
nvkm_uconn_uevent_aux);
}
if (&outp->head == &conn->disp->outps)
return -EINVAL;
if (outp->dp.aux && !outp->info.location) {
if (args->v0.types & NVIF_CONN_EVENT_V0_PLUG ) bits |= NVKM_I2C_PLUG;
if (args->v0.types & NVIF_CONN_EVENT_V0_UNPLUG) bits |= NVKM_I2C_UNPLUG;
if (args->v0.types & NVIF_CONN_EVENT_V0_IRQ ) bits |= NVKM_I2C_IRQ;
return nvkm_uevent_add(uevent, &device->i2c->event, outp->dp.aux->id, bits,
nvkm_uconn_uevent_aux);
}
if (args->v0.types & NVIF_CONN_EVENT_V0_PLUG ) bits |= NVKM_GPIO_HI;
if (args->v0.types & NVIF_CONN_EVENT_V0_UNPLUG) bits |= NVKM_GPIO_LO;
if (args->v0.types & NVIF_CONN_EVENT_V0_IRQ)
return -EINVAL;
if (args->v0.types & NVIF_CONN_EVENT_V0_IRQ) {
/* TODO: support DP IRQ on ANX9805 and remove this hack. */
if (!outp->info.location)
return -EINVAL;
}
return nvkm_uevent_add(uevent, &device->gpio->event, conn->info.hpd, bits,
nvkm_uconn_uevent_gpio);