[media] coda: allow running coda without iram on mx6dl

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

drivers/media/platform/coda/coda-bit.c

@@ -474,6 +474,9 @@ static void coda_setup_iram(struct coda_ctx *ctx)
 	iram_info->next_paddr = dev->iram.paddr;
 	iram_info->remaining = dev->iram.size;
 
+	if (!dev->iram.vaddr)
+		return;
+
 	switch (dev->devtype->product) {
 	case CODA_7541:
 		dbk_bits = CODA7_USE_HOST_DBK_ENABLE | CODA7_USE_DBK_ENABLE;

drivers/media/platform/coda/coda-common.c

@@ -1947,15 +1947,15 @@ static int coda_probe(struct platform_device *pdev)
 	dev->iram.vaddr = gen_pool_dma_alloc(dev->iram_pool, dev->iram.size,
 					     &dev->iram.paddr);
 	if (!dev->iram.vaddr) {
-		dev_err(&pdev->dev, "unable to alloc iram\n");
-		return -ENOMEM;
+		dev_warn(&pdev->dev, "unable to alloc iram\n");
+	} else {
+		dev->iram.blob.data = dev->iram.vaddr;
+		dev->iram.blob.size = dev->iram.size;
+		dev->iram.dentry = debugfs_create_blob("iram", 0644,
+						       dev->debugfs_root,
+						       &dev->iram.blob);
 	}
 
-	dev->iram.blob.data = dev->iram.vaddr;
-	dev->iram.blob.size = dev->iram.size;
-	dev->iram.dentry = debugfs_create_blob("iram", 0644, dev->debugfs_root,
-					       &dev->iram.blob);
-
 	dev->workqueue = alloc_workqueue("coda", WQ_UNBOUND | WQ_MEM_RECLAIM, 1);
 	if (!dev->workqueue) {
 		dev_err(&pdev->dev, "unable to alloc workqueue\n");