Decrease log verbosity in the kernel modules

Changed several logs level from info to dbg and removed redundant or
uninformative logging in order to reduce verbosity of the kernel
modules.

Change-Id: Ie9ff7f3ae6478007ea58547380b3ddfef5d280b4
Signed-off-by: Ledion Daja <ledion.daja@arm.com>
diff --git a/remoteproc/ethosu_remoteproc.c b/remoteproc/ethosu_remoteproc.c
index 87de3b0..c6d7735 100644
--- a/remoteproc/ethosu_remoteproc.c
+++ b/remoteproc/ethosu_remoteproc.c
@@ -153,8 +153,8 @@
 	if (!mem)
 		return -ENOMEM;
 
-	dev_info(dev, "Add carveout mapping. dma=%pad, da=%x, va=%p, len=%zu",
-		 &mem->dma, mem->da, mem->va, mem->len);
+	dev_dbg(dev, "Add carveout mapping. dma=%pad, da=%x, va=%p, len=%zu",
+		&mem->dma, mem->da, mem->va, mem->len);
 
 	rproc_add_carveout(rproc, mem);
 
@@ -170,12 +170,10 @@
 	int i;
 	int ret;
 
-	dev_info(dev, "Preparing Ethos-U");
-
 	/* Add carveout for each 'reg' device tree entry */
 	for (i = 0; of_address_to_resource(np, i, &res) == 0; i++) {
-		dev_info(dev, "Found resource. start=%llx, size=%llx",
-			 res.start, resource_size(&res));
+		dev_dbg(dev, "Found resource. start=%llx, size=%llx",
+			res.start, resource_size(&res));
 
 		ret = ethosu_add_carveout(rproc, res.start,
 					  resource_size(&res), res.name);
@@ -194,9 +192,9 @@
 			return -EINVAL;
 		}
 
-		dev_info(dev,
-			 "Found memory region. pa=%llx, size=%llu, name=%s",
-			 res_mem->base, res_mem->size, it.node->name);
+		dev_dbg(dev,
+			"Found memory region. pa=%llx, size=%llu, name=%s",
+			res_mem->base, res_mem->size, it.node->name);
 
 		ret = ethosu_add_carveout(rproc, res_mem->base, res_mem->size,
 					  it.node->name);
@@ -322,7 +320,7 @@
 
 	erproc->ch_tx = mbox_request_channel_byname(cl, "tx");
 	if (IS_ERR(erproc->ch_tx)) {
-		dev_info(dev, "Using same channel for RX and TX");
+		dev_dbg(dev, "Using same channel for RX and TX");
 		erproc->ch_tx = erproc->ch_rx;
 	}