diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c
index 4e55239..53d22eb 100644
--- a/drivers/dma/at_hdmac.c
+++ b/drivers/dma/at_hdmac.c
@@ -729,8 +729,8 @@
 		return NULL;
 
 	dev_info(chan2dev(chan),
-		 "%s: src=0x%08x, dest=0x%08x, numf=%d, frame_size=%d, flags=0x%lx\n",
-		__func__, xt->src_start, xt->dst_start, xt->numf,
+		 "%s: src=%pad, dest=%pad, numf=%d, frame_size=%d, flags=0x%lx\n",
+		__func__, &xt->src_start, &xt->dst_start, xt->numf,
 		xt->frame_size, flags);
 
 	/*
@@ -824,8 +824,8 @@
 	u32			ctrla;
 	u32			ctrlb;
 
-	dev_vdbg(chan2dev(chan), "prep_dma_memcpy: d0x%x s0x%x l0x%zx f0x%lx\n",
-			dest, src, len, flags);
+	dev_vdbg(chan2dev(chan), "prep_dma_memcpy: d%pad s%pad l0x%zx f0x%lx\n",
+			&dest, &src, len, flags);
 
 	if (unlikely(!len)) {
 		dev_dbg(chan2dev(chan), "prep_dma_memcpy: length is zero!\n");
@@ -938,8 +938,8 @@
 	void __iomem		*vaddr;
 	dma_addr_t		paddr;
 
-	dev_vdbg(chan2dev(chan), "%s: d0x%x v0x%x l0x%zx f0x%lx\n", __func__,
-		dest, value, len, flags);
+	dev_vdbg(chan2dev(chan), "%s: d%pad v0x%x l0x%zx f0x%lx\n", __func__,
+		&dest, value, len, flags);
 
 	if (unlikely(!len)) {
 		dev_dbg(chan2dev(chan), "%s: length is zero!\n", __func__);
@@ -1022,8 +1022,8 @@
 		dma_addr_t dest = sg_dma_address(sg);
 		size_t len = sg_dma_len(sg);
 
-		dev_vdbg(chan2dev(chan), "%s: d0x%08x, l0x%zx\n",
-			 __func__, dest, len);
+		dev_vdbg(chan2dev(chan), "%s: d%pad, l0x%zx\n",
+			 __func__, &dest, len);
 
 		if (!is_dma_fill_aligned(chan->device, dest, 0, len)) {
 			dev_err(chan2dev(chan), "%s: buffer is not aligned\n",
@@ -1439,9 +1439,9 @@
 	unsigned int		periods = buf_len / period_len;
 	unsigned int		i;
 
-	dev_vdbg(chan2dev(chan), "prep_dma_cyclic: %s buf@0x%08x - %d (%d/%d)\n",
+	dev_vdbg(chan2dev(chan), "prep_dma_cyclic: %s buf@%pad - %d (%d/%d)\n",
 			direction == DMA_MEM_TO_DEV ? "TO DEVICE" : "FROM DEVICE",
-			buf_addr,
+			&buf_addr,
 			periods, buf_len, period_len);
 
 	if (unlikely(!atslave || !buf_len || !period_len)) {
diff --git a/drivers/dma/at_hdmac_regs.h b/drivers/dma/at_hdmac_regs.h
index d1cfc8c..7f58f06 100644
--- a/drivers/dma/at_hdmac_regs.h
+++ b/drivers/dma/at_hdmac_regs.h
@@ -385,9 +385,9 @@
 static void atc_dump_lli(struct at_dma_chan *atchan, struct at_lli *lli)
 {
 	dev_crit(chan2dev(&atchan->chan_common),
-		 "  desc: s0x%x d0x%x ctrl0x%x:0x%x l0x%x\n",
-		 lli->saddr, lli->daddr,
-		 lli->ctrla, lli->ctrlb, lli->dscr);
+		 "  desc: s%pad d%pad ctrl0x%x:0x%x l0x%pad\n",
+		 &lli->saddr, &lli->daddr,
+		 lli->ctrla, lli->ctrlb, &lli->dscr);
 }
 
 
diff --git a/drivers/dma/at_xdmac.c b/drivers/dma/at_xdmac.c
index b5e132d..7f039de 100644
--- a/drivers/dma/at_xdmac.c
+++ b/drivers/dma/at_xdmac.c
@@ -920,8 +920,8 @@
 	desc->lld.mbr_cfg = chan_cc;
 
 	dev_dbg(chan2dev(chan),
-		"%s: lld: mbr_sa=0x%08x, mbr_da=0x%08x, mbr_ubc=0x%08x, mbr_cfg=0x%08x\n",
-		__func__, desc->lld.mbr_sa, desc->lld.mbr_da,
+		"%s: lld: mbr_sa=%pad, mbr_da=%pad, mbr_ubc=0x%08x, mbr_cfg=0x%08x\n",
+		__func__, &desc->lld.mbr_sa, &desc->lld.mbr_da,
 		desc->lld.mbr_ubc, desc->lld.mbr_cfg);
 
 	/* Chain lld. */
@@ -953,8 +953,8 @@
 	if ((xt->numf > 1) && (xt->frame_size > 1))
 		return NULL;
 
-	dev_dbg(chan2dev(chan), "%s: src=0x%08x, dest=0x%08x, numf=%d, frame_size=%d, flags=0x%lx\n",
-		__func__, xt->src_start, xt->dst_start,	xt->numf,
+	dev_dbg(chan2dev(chan), "%s: src=%pad, dest=%pad, numf=%d, frame_size=%d, flags=0x%lx\n",
+		__func__, &xt->src_start, &xt->dst_start,	xt->numf,
 		xt->frame_size, flags);
 
 	src_addr = xt->src_start;
@@ -1179,8 +1179,8 @@
 	desc->lld.mbr_cfg = chan_cc;
 
 	dev_dbg(chan2dev(chan),
-		"%s: lld: mbr_da=0x%08x, mbr_ds=0x%08x, mbr_ubc=0x%08x, mbr_cfg=0x%08x\n",
-		__func__, desc->lld.mbr_da, desc->lld.mbr_ds, desc->lld.mbr_ubc,
+		"%s: lld: mbr_da=%pad, mbr_ds=%pad, mbr_ubc=0x%08x, mbr_cfg=0x%08x\n",
+		__func__, &desc->lld.mbr_da, &desc->lld.mbr_ds, desc->lld.mbr_ubc,
 		desc->lld.mbr_cfg);
 
 	return desc;
@@ -1193,8 +1193,8 @@
 	struct at_xdmac_chan	*atchan = to_at_xdmac_chan(chan);
 	struct at_xdmac_desc	*desc;
 
-	dev_dbg(chan2dev(chan), "%s: dest=0x%08x, len=%d, pattern=0x%x, flags=0x%lx\n",
-		__func__, dest, len, value, flags);
+	dev_dbg(chan2dev(chan), "%s: dest=%pad, len=%d, pattern=0x%x, flags=0x%lx\n",
+		__func__, &dest, len, value, flags);
 
 	if (unlikely(!len))
 		return NULL;
@@ -1229,8 +1229,8 @@
 
 	/* Prepare descriptors. */
 	for_each_sg(sgl, sg, sg_len, i) {
-		dev_dbg(chan2dev(chan), "%s: dest=0x%08x, len=%d, pattern=0x%x, flags=0x%lx\n",
-			__func__, sg_dma_address(sg), sg_dma_len(sg),
+		dev_dbg(chan2dev(chan), "%s: dest=%pad, len=%d, pattern=0x%x, flags=0x%lx\n",
+			__func__, &sg_dma_address(sg), sg_dma_len(sg),
 			value, flags);
 		desc = at_xdmac_memset_create_desc(chan, atchan,
 						   sg_dma_address(sg),
diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c
index 6b03e4e..0675e26 100644
--- a/drivers/dma/edma.c
+++ b/drivers/dma/edma.c
@@ -107,7 +107,7 @@
 
 /* CCCFG register */
 #define GET_NUM_DMACH(x)	(x & 0x7) /* bits 0-2 */
-#define GET_NUM_QDMACH(x)	(x & 0x70 >> 4) /* bits 4-6 */
+#define GET_NUM_QDMACH(x)	((x & 0x70) >> 4) /* bits 4-6 */
 #define GET_NUM_PAENTRY(x)	((x & 0x7000) >> 12) /* bits 12-14 */
 #define GET_NUM_EVQUE(x)	((x & 0x70000) >> 16) /* bits 16-18 */
 #define GET_NUM_REGN(x)		((x & 0x300000) >> 20) /* bits 20-21 */
@@ -1565,7 +1565,7 @@
 	struct platform_device *tc_pdev;
 	int ret;
 
-	if (!tc)
+	if (!IS_ENABLED(CONFIG_OF) || !tc)
 		return;
 
 	tc_pdev = of_find_device_by_node(tc->node);
diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
index 7058d58..0f6fd42 100644
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -1462,7 +1462,7 @@
 
 #define EVENT_REMAP_CELLS 3
 
-static int __init sdma_event_remap(struct sdma_engine *sdma)
+static int sdma_event_remap(struct sdma_engine *sdma)
 {
 	struct device_node *np = sdma->dev->of_node;
 	struct device_node *gpr_np = of_parse_phandle(np, "gpr", 0);
diff --git a/drivers/dma/sh/usb-dmac.c b/drivers/dma/sh/usb-dmac.c
index ebd8a5f..f1bcc2a 100644
--- a/drivers/dma/sh/usb-dmac.c
+++ b/drivers/dma/sh/usb-dmac.c
@@ -679,8 +679,11 @@
 	struct usb_dmac *dmac = dev_get_drvdata(dev);
 	int i;
 
-	for (i = 0; i < dmac->n_channels; ++i)
+	for (i = 0; i < dmac->n_channels; ++i) {
+		if (!dmac->channels[i].iomem)
+			break;
 		usb_dmac_chan_halt(&dmac->channels[i]);
+	}
 
 	return 0;
 }
@@ -799,11 +802,10 @@
 	ret = pm_runtime_get_sync(&pdev->dev);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "runtime PM get sync failed (%d)\n", ret);
-		return ret;
+		goto error_pm;
 	}
 
 	ret = usb_dmac_init(dmac);
-	pm_runtime_put(&pdev->dev);
 
 	if (ret) {
 		dev_err(&pdev->dev, "failed to reset device\n");
@@ -851,10 +853,13 @@
 	if (ret < 0)
 		goto error;
 
+	pm_runtime_put(&pdev->dev);
 	return 0;
 
 error:
 	of_dma_controller_free(pdev->dev.of_node);
+	pm_runtime_put(&pdev->dev);
+error_pm:
 	pm_runtime_disable(&pdev->dev);
 	return ret;
 }
diff --git a/include/linux/of_dma.h b/include/linux/of_dma.h
index 36112cd..b90d8ec 100644
--- a/include/linux/of_dma.h
+++ b/include/linux/of_dma.h
@@ -80,7 +80,7 @@
 static inline struct dma_chan *of_dma_request_slave_channel(struct device_node *np,
 						     const char *name)
 {
-	return NULL;
+	return ERR_PTR(-ENODEV);
 }
 
 static inline struct dma_chan *of_dma_simple_xlate(struct of_phandle_args *dma_spec,