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-rw-r--r--drivers/dma/at_hdmac.c17
-rw-r--r--drivers/dma/at_xdmac.c7
-rw-r--r--drivers/dma/idxd/cdev.c1
-rw-r--r--drivers/dma/pl330.c8
-rw-r--r--drivers/dma/ti/k3-udma.c4
5 files changed, 21 insertions, 16 deletions
diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c
index 8858470246e1..ee3a219e3a89 100644
--- a/drivers/dma/at_hdmac.c
+++ b/drivers/dma/at_hdmac.c
@@ -132,7 +132,7 @@
#define ATC_DST_PIP BIT(12) /* Destination Picture-in-Picture enabled */
#define ATC_SRC_DSCR_DIS BIT(16) /* Src Descriptor fetch disable */
#define ATC_DST_DSCR_DIS BIT(20) /* Dst Descriptor fetch disable */
-#define ATC_FC GENMASK(22, 21) /* Choose Flow Controller */
+#define ATC_FC GENMASK(23, 21) /* Choose Flow Controller */
#define ATC_FC_MEM2MEM 0x0 /* Mem-to-Mem (DMA) */
#define ATC_FC_MEM2PER 0x1 /* Mem-to-Periph (DMA) */
#define ATC_FC_PER2MEM 0x2 /* Periph-to-Mem (DMA) */
@@ -153,8 +153,6 @@
#define ATC_AUTO BIT(31) /* Auto multiple buffer tx enable */
/* Bitfields in CFG */
-#define ATC_PER_MSB(h) ((0x30U & (h)) >> 4) /* Extract most significant bits of a handshaking identifier */
-
#define ATC_SRC_PER GENMASK(3, 0) /* Channel src rq associated with periph handshaking ifc h */
#define ATC_DST_PER GENMASK(7, 4) /* Channel dst rq associated with periph handshaking ifc h */
#define ATC_SRC_REP BIT(8) /* Source Replay Mod */
@@ -181,10 +179,15 @@
#define ATC_DPIP_HOLE GENMASK(15, 0)
#define ATC_DPIP_BOUNDARY GENMASK(25, 16)
-#define ATC_SRC_PER_ID(id) (FIELD_PREP(ATC_SRC_PER_MSB, (id)) | \
- FIELD_PREP(ATC_SRC_PER, (id)))
-#define ATC_DST_PER_ID(id) (FIELD_PREP(ATC_DST_PER_MSB, (id)) | \
- FIELD_PREP(ATC_DST_PER, (id)))
+#define ATC_PER_MSB GENMASK(5, 4) /* Extract MSBs of a handshaking identifier */
+#define ATC_SRC_PER_ID(id) \
+ ({ typeof(id) _id = (id); \
+ FIELD_PREP(ATC_SRC_PER_MSB, FIELD_GET(ATC_PER_MSB, _id)) | \
+ FIELD_PREP(ATC_SRC_PER, _id); })
+#define ATC_DST_PER_ID(id) \
+ ({ typeof(id) _id = (id); \
+ FIELD_PREP(ATC_DST_PER_MSB, FIELD_GET(ATC_PER_MSB, _id)) | \
+ FIELD_PREP(ATC_DST_PER, _id); })
diff --git a/drivers/dma/at_xdmac.c b/drivers/dma/at_xdmac.c
index 7da6d9b6098e..c3b37168b21f 100644
--- a/drivers/dma/at_xdmac.c
+++ b/drivers/dma/at_xdmac.c
@@ -1102,6 +1102,8 @@ at_xdmac_prep_interleaved(struct dma_chan *chan,
NULL,
src_addr, dst_addr,
xt, xt->sgl);
+ if (!first)
+ return NULL;
/* Length of the block is (BLEN+1) microblocks. */
for (i = 0; i < xt->numf - 1; i++)
@@ -1132,8 +1134,9 @@ at_xdmac_prep_interleaved(struct dma_chan *chan,
src_addr, dst_addr,
xt, chunk);
if (!desc) {
- list_splice_tail_init(&first->descs_list,
- &atchan->free_descs_list);
+ if (first)
+ list_splice_tail_init(&first->descs_list,
+ &atchan->free_descs_list);
return NULL;
}
diff --git a/drivers/dma/idxd/cdev.c b/drivers/dma/idxd/cdev.c
index ecbf67c2ad2b..d32deb9b4e3d 100644
--- a/drivers/dma/idxd/cdev.c
+++ b/drivers/dma/idxd/cdev.c
@@ -277,7 +277,6 @@ static int idxd_cdev_open(struct inode *inode, struct file *filp)
if (wq_dedicated(wq)) {
rc = idxd_wq_set_pasid(wq, pasid);
if (rc < 0) {
- iommu_sva_unbind_device(sva);
dev_err(dev, "wq set pasid failed: %d\n", rc);
goto failed_set_pasid;
}
diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
index 0d9257fbdfb0..b4731fe6bbc1 100644
--- a/drivers/dma/pl330.c
+++ b/drivers/dma/pl330.c
@@ -1050,7 +1050,7 @@ static bool _trigger(struct pl330_thread *thrd)
return true;
}
-static bool _start(struct pl330_thread *thrd)
+static bool pl330_start_thread(struct pl330_thread *thrd)
{
switch (_state(thrd)) {
case PL330_STATE_FAULT_COMPLETING:
@@ -1702,7 +1702,7 @@ static int pl330_update(struct pl330_dmac *pl330)
thrd->req_running = -1;
/* Get going again ASAP */
- _start(thrd);
+ pl330_start_thread(thrd);
/* For now, just make a list of callbacks to be done */
list_add_tail(&descdone->rqd, &pl330->req_done);
@@ -2089,7 +2089,7 @@ static void pl330_tasklet(struct tasklet_struct *t)
} else {
/* Make sure the PL330 Channel thread is active */
spin_lock(&pch->thread->dmac->lock);
- _start(pch->thread);
+ pl330_start_thread(pch->thread);
spin_unlock(&pch->thread->dmac->lock);
}
@@ -2107,7 +2107,7 @@ static void pl330_tasklet(struct tasklet_struct *t)
if (power_down) {
pch->active = true;
spin_lock(&pch->thread->dmac->lock);
- _start(pch->thread);
+ pl330_start_thread(pch->thread);
spin_unlock(&pch->thread->dmac->lock);
power_down = false;
}
diff --git a/drivers/dma/ti/k3-udma.c b/drivers/dma/ti/k3-udma.c
index fc3a2a05ab7b..b8329a23728d 100644
--- a/drivers/dma/ti/k3-udma.c
+++ b/drivers/dma/ti/k3-udma.c
@@ -5527,7 +5527,7 @@ static int udma_probe(struct platform_device *pdev)
return ret;
}
-static int udma_pm_suspend(struct device *dev)
+static int __maybe_unused udma_pm_suspend(struct device *dev)
{
struct udma_dev *ud = dev_get_drvdata(dev);
struct dma_device *dma_dev = &ud->ddev;
@@ -5549,7 +5549,7 @@ static int udma_pm_suspend(struct device *dev)
return 0;
}
-static int udma_pm_resume(struct device *dev)
+static int __maybe_unused udma_pm_resume(struct device *dev)
{
struct udma_dev *ud = dev_get_drvdata(dev);
struct dma_device *dma_dev = &ud->ddev;