set_device_name
dw->set_device_name(dw, chip->id);
dw->set_device_name = dw_dma_set_device_name;
dw->set_device_name = idma32_set_device_name;
void (*set_device_name)(struct dw_dma *dw, int id);
ret = set_device_name(trigger_data, buf, size);
set_device_name(trigger_data, name, strlen(name));