+ if (!conf->dir) {
+ dev_err(&d40c->chan.dev->device, "[%s] Invalid direction.\n",
+ __func__);
+ res = -EINVAL;
+ }
+
+ if (conf->dst_dev_type != STEDMA40_DEV_DST_MEMORY &&
+ d40c->base->plat_data->dev_tx[conf->dst_dev_type] == 0 &&
+ d40c->runtime_addr == 0) {
+
+ dev_err(&d40c->chan.dev->device,
+ "[%s] Invalid TX channel address (%d)\n",
+ __func__, conf->dst_dev_type);
+ res = -EINVAL;
+ }
+
+ if (conf->src_dev_type != STEDMA40_DEV_SRC_MEMORY &&
+ d40c->base->plat_data->dev_rx[conf->src_dev_type] == 0 &&
+ d40c->runtime_addr == 0) {
+ dev_err(&d40c->chan.dev->device,
+ "[%s] Invalid RX channel address (%d)\n",
+ __func__, conf->src_dev_type);
+ res = -EINVAL;
+ }
+
+ if (conf->dir == STEDMA40_MEM_TO_PERIPH &&