From: Ben Skeggs <bskeggs@xxxxxxxxxx>
Fixes crash on boards with ANX9805 TMDS/DP encoders.
Signed-off-by: Ben Skeggs <bskeggs@xxxxxxxxxx>
---
.../gpu/drm/nouveau/nvkm/engine/disp/uconn.c | 27 ++++++++++++-------
1 file changed, 18 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/uconn.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/uconn.c
index dad942be6679..46b057fe1412 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/uconn.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/uconn.c
@@ -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);
--
2.41.0
