+
+void
+nvkm_i2c_aux_monitor(struct nvkm_i2c_aux *aux, bool monitor)
+{
+ struct nvkm_i2c_pad *pad = aux->pad;
+ AUX_TRACE(aux, "monitor: %s", monitor ? "yes" : "no");
+ if (monitor)
+ nvkm_i2c_pad_mode(pad, NVKM_I2C_PAD_AUX);
+ else
+ nvkm_i2c_pad_mode(pad, NVKM_I2C_PAD_OFF);
+}
+
+void
+nvkm_i2c_aux_release(struct nvkm_i2c_aux *aux)
+{
+ struct nvkm_i2c_pad *pad = aux->pad;
+ AUX_TRACE(aux, "release");
+ nvkm_i2c_pad_release(pad);
+ mutex_unlock(&aux->mutex);
+}
+
+int
+nvkm_i2c_aux_acquire(struct nvkm_i2c_aux *aux)
+{
+ struct nvkm_i2c_pad *pad = aux->pad;
+ int ret;
+ AUX_TRACE(aux, "acquire");
+ mutex_lock(&aux->mutex);
+ ret = nvkm_i2c_pad_acquire(pad, NVKM_I2C_PAD_AUX);
+ if (ret)
+ mutex_unlock(&aux->mutex);
+ return ret;
+}
+
+int
+nvkm_i2c_aux_xfer(struct nvkm_i2c_aux *aux, bool retry, u8 type,
+ u32 addr, u8 *data, u8 size)
+{
+ return aux->func->xfer(aux, retry, type, addr, data, size);
+}
+
+int
+nvkm_i2c_aux_lnk_ctl(struct nvkm_i2c_aux *aux, int nr, int bw, bool ef)
+{
+ if (aux->func->lnk_ctl)
+ return aux->func->lnk_ctl(aux, nr, bw, ef);
+ return -ENODEV;
+}
+
+void
+nvkm_i2c_aux_del(struct nvkm_i2c_aux **paux)
+{
+ struct nvkm_i2c_aux *aux = *paux;
+ if (aux && !WARN_ON(!aux->func)) {
+ AUX_TRACE(aux, "dtor");
+ list_del(&aux->head);
+ i2c_del_adapter(&aux->i2c);
+ kfree(*paux);
+ *paux = NULL;
+ }
+}
+
+int
+nvkm_i2c_aux_ctor(const struct nvkm_i2c_aux_func *func,
+ struct nvkm_i2c_pad *pad, int id,
+ struct nvkm_i2c_aux *aux)
+{
+ struct nvkm_device *device = pad->i2c->subdev.device;
+
+ aux->func = func;
+ aux->pad = pad;
+ aux->id = id;
+ mutex_init(&aux->mutex);
+ list_add_tail(&aux->head, &pad->i2c->aux);
+ AUX_TRACE(aux, "ctor");
+
+ snprintf(aux->i2c.name, sizeof(aux->i2c.name), "nvkm-%s-aux-%04x",
+ dev_name(device->dev), id);
+ aux->i2c.owner = THIS_MODULE;
+ aux->i2c.dev.parent = device->dev;
+ aux->i2c.algo = &nvkm_i2c_aux_i2c_algo;
+ return i2c_add_adapter(&aux->i2c);
+}
+
+int
+nvkm_i2c_aux_new_(const struct nvkm_i2c_aux_func *func,
+ struct nvkm_i2c_pad *pad, int id,
+ struct nvkm_i2c_aux **paux)
+{
+ if (!(*paux = kzalloc(sizeof(**paux), GFP_KERNEL)))
+ return -ENOMEM;
+ return nvkm_i2c_aux_ctor(func, pad, id, *paux);
+}